KR20100040819A - An arc remover with a current sensor and a hybrid switch with a current sensor - Google Patents
An arc remover with a current sensor and a hybrid switch with a current sensor Download PDFInfo
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- KR20100040819A KR20100040819A KR1020100020596A KR20100020596A KR20100040819A KR 20100040819 A KR20100040819 A KR 20100040819A KR 1020100020596 A KR1020100020596 A KR 1020100020596A KR 20100020596 A KR20100020596 A KR 20100020596A KR 20100040819 A KR20100040819 A KR 20100040819A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/32—Energising current supplied by semiconductor device
- H01H47/325—Energising current supplied by semiconductor device by switching regulator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/12—Ventilating; Cooling; Heating
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Abstract
It provides an electric parallel connection with a relay or a circuit breaker to detect the current generated between the contacts of the relay to remove the arc applicable to various relays in various environments, and provides a current detection arc eliminator implementing the method, A current detection hybrid switch is provided that includes a method used in a current detection arc eliminator.
Description
The present invention relates to the arc control technology of high voltage high current contact relays and breakers.
The present invention relates to relays, contactors (contact relays), semiconductor relays, circuit breakers. Relays normally open and close signals and power. Contactors are very large relays used to drive motors, heaters and light bulbs. Devices with a capacity of 15 A or more or thousands of watts or more are called contactors. Additional Options Except for additional low current contactors, they are made almost exclusively with normally open contactors. Unlike relays, contactors are designed with the ability to suppress and control the arcing that occurs when breaking large motor currents. An unavoidable arc upon blocking leads to oxidation of the contacts, which are made of silver alloys (AgSnO 2 , AgCdO 2 ). This is because the oxide of silver alloy is still a good conductor. The physical size of the contactor ranges from a small size that can be lifted with one hand to a large size that is approximately 1 meter laterally.
The physical phenomenon of the arc is described as follows. When charge accumulates on the surface of an object, an electric field is generated in the surrounding medium, which causes the Coulomb force to act on another object in the electric field, and when it reaches a limit, the medium reads electrical insulation and becomes conductive. When discharge occurs, electromagnetic radiation, sound, and light are generated accordingly. Discharge types include spark discharge, brush discharge, corona discharge, and propagating brush discharge. Spark discharges are discharges that convert very quickly the energy that has been charged by complete dielectric breakdown of the medium in a uniform electric field. Brush discharge A discharge in which a discharge occurs at a part exceeding the dielectric strength in part of an uneven electric field. Corona discharge is a type of brush discharge that is a weak discharge in which the local breakdown of the medium breaks down in a more severely uneven electric field. Propagating brush discharge occurs in a charge bilayer consisting of positive and negative charges several times the maximum surface charge density on both sides of a thin insulator such as a film. The dielectric strength of air is about 3 kV / mm, and the surface charge density is about 2.7x10 -2 C / m 2 . Electrostatic discharge occurs when the charge density on the surface of the charge is about 10 −6 or more. In practice, the geometry of the electrodes results in much lower breakdown voltages. In summary, since the distance between the contacts is far from zero at the time of interruption, when the distance between the contacts is very close, a spark discharge occurs, causing ions and particles of the electrode to be caused by ionization of the medium. For example, spark discharge occurs when the spacing of the contacts is within 2/15 mm when the 400V battery power is turned off. As a result, even when the distance between the contacts is increased, the local dielectric strength is low through ionization due to ionization in the medium, thereby maintaining the brush discharge form. Thus, as the distance between the contacts increases, the arc can be maintained in the form of a brush or corona discharge starting with a spark discharge.
Now, referring to Figure 1 the principle of generating an arc in the process of contacting and blocking the existing relay as follows. Referring to FIG. 1, let d_spark be the distance between the contacts where spark discharge starts when the contacts approach slowly. The time at which the distance d between the opening and closing signal reference contacts becomes d_spark in the contact process is called T_spark, and the time at which the opening and closing signal reference contacts start to be spaced apart in the separation process is called T_move, and the distance between the contacts starting to move away from T_move. Let T_open be the time d becomes d_spark. That is, the moving contact starts to be separated from the opening / closing signal reference T_move for separation, and the distance d between the contacts becomes d_spark at (T_move + T_close). An arc discharge may exist from T_arc to a contact state in the contact process. In T_move, the spark discharge occurs because the distance d between the contacts is close to zero. After the time elapses in the separation process (T_move + Topen), the distance d between the contacts is large (d> d_spark), and spark discharge does not occur. However, there may be an arc by brush discharge or corona discharge since the ions created by the previous spark discharge exist between the electrodes.
Since the arc in the atmosphere is an ionized gas at high temperature, the arc control is finally reduced from the ionized state to the insulator by cooling. This removal of the ion is called SOHO. At voltages of 30 V or more, discharge starts within 1/100 mm. As the separation distance between the electrodes increases, ions are quickly cooled and extinguished by the electrodes, making it difficult to generate an arc. However, in a contactor with a limited distance between the contacts, it is quite difficult to extinguish it in the atmosphere when the voltage is more than 3kV and the current is more than thousands of amps. Therefore, the control of the arc is important. On the other hand, arc extinguishing by direct current is more difficult than alternating current where current passes through zero. Existing extinguishing methods currently used for blocking include cooling by using a gas generated by an arc, expanding ions in a vacuum state, blowing ions in a direction, increasing internal pressure of the arc chamber, and arcing. There is a method of subdividing and using the arc driving force of the magnetic field. Both of these methods result in a reasonable increase in the recovery of the rapid dielectric strength between poles in the event of a break. In practice, the breaker or contact relay combines several methods to improve the breakdown performance.
The high voltage contactor is surrounded by vacuum or an inert gas surrounding the contact electrodes to prevent oxidation of the contacts by the arc. The contacts carry the current from the contactor. This includes power contacts and a contact spring. The electromagnets provide the driving force for contacting the contacts. There is a cover surrounding the contacts and the electromagnet connection and the connections with the terminals and contacts for connection with the external system. The cover is made of Bakelite, Nylon 6, and thermosetting plastics to protect and insulate the contacts and to prevent people from touching them. Open cover contactors may have additional covers to protect against dust, oil, explosion hazards and climate.
Sometimes saving circuitry is also installed to reduce the power required to keep the contactor closed. Additional contact reduces coil current after the contactor is closed. Closing the contactor initially requires significantly more power than keeping it closed. The saving circuit can save a lot of power and keep the drive coil cool. Saving circuits are almost always applied to direct-current contactor coils and to large alternating current contactor coils.
Most motor control contactors operating at low voltages (below 600V) are air insulated contactors. Modern medium voltage motor controllers use vacuum contactors. Motor control contactors must match the fixtures for mounting them to make short circuit protection, heat exchange means, overload relays and combined starters
In the sixties, a circuit breaker operated with insulating oil was used to control the arc at the time of breaking. In general, the surrounding insulating oil is decomposed by an arc generated when the current is interrupted to generate gases such as hydrogen, acetylene, methane, and ethane. 50-70% of the composition ratio of these gases is hydrogen, but the hydrogen gas is light and the thermal conductivity is very high even at a high temperature of about 4000 ° K.
Magnetic arcs use magnetic fields to lengthen arcs and use blown coils or permanent magnets to move arcs into arc chambers. The extinguishing chamber is made of an arc resistant insulating material such as zircon powder material, and the arc is cooled by ionic extinction to cut off the current. Current magnetic circuit breaker stacks a subplate of heat-resistant magnetic material with inverted V-shaped grooves in an appropriate number of sheets, installs a blowing coil and a magnetic pole, and flows an arc current to the blowing coil to create a magnetic field, which makes the magnetic field induced by the magnetic field and the arc. The arc is blown into the extinguishing chamber by (in this case, the arc is considered to be a current-carrying conductor and the Fleming's left-hand rule is applied to indicate the direction of motion of the arc). In the case of a magnetic circuit breaker, a high temperature arc reaches the surface of the arc board of the heat-resistant magnetic and becomes a cooling ion by thermal conduction. In order to effectively effect such cooling, the material of the arc board, the shape of the reverse V-shaped groove, the number of turns of the blowing coil, the installation position, etc. must be taken into consideration. On the other hand, by filling the high thermal conductivity of hydrogen, the cooling effect is further enhanced. The arc extinguishing principle of the arc chute is basically a cooling effect as described above, but another advantage related to arc extinguishing is the current-limiting wave effect of dividing one large arc into smaller arcs.
Vacuum circuit breaker is a circuit breaker that operates the circuit breaker in high vacuum. The insulation resistance in the high vacuum is very high and the extinguishing action by the diffusion of metal vapor or charge particles is outstanding. To block. When the pressure is gradually decreased from the atmospheric pressure, the dielectric strength decreases initially, but when the pressure is again applied, the dielectric strength increases. In a vacuum of 10 -3 Torr or less, the free stroke of electrons reaches several meters, so the generated arc is a neutral metal vapor atom, positive and negative charge, which starts from the cathode, not by electron collision. The high pressure arc vapor, which fills the core of the arc main in the vacuum valve, rapidly diffuses into the low pressure pipe wall of 10 -4 Torr or less. If the amount of neutral metal vapor atoms, cations and anions supplied from the cathode is less than the amount diffused in the vacuum during the opening and closing of the vacuum circuit breaker, the arc between the contacts cannot be maintained. The block is completed. If it is less than 10 -4 Torr, almost constant dielectric strength (100kV / mm when using tungsten electrodes) can be obtained regardless of pressure, and this vacuum area can be used to shorten the stroke of the contact of the vacuum circuit breaker to about 6 ~ 16mm.
This vacuum circuit breaker is small in size, light in weight, non-flammable and noise-free, and has a long service life, so it has excellent function and breaking performance of a high speed high frequency switch which is basically required as a breaker.
The contact shape of the vacuum circuit breaker has been studied in various ways to facilitate the arc extinguishing. The oblique grooved structure of the contactor is to facilitate the arc extinguishing by bending the charge path. As a result, localized heating phenomenon of the contact surface is eliminated, and the surface consumption state becomes uniform. If the surface of the contact is kept uniform, the breakdown voltage characteristics between the poles can be improved, and the distance between the contacts can be reduced.
For arc control using inert gas, SF 6 gas with intrinsic arc time constant of less than 1/100 of air due to its unique thermochemical and remarkable electrical characteristics is used because of its excellent insulation and extinguishing performance and excellent recovery characteristics. SF 6 gas has a dielectric strength of 89 kV / cm at 1 atmosphere, and the extinguishing power is about 100 times that of air, and the SF 6 gas circuit breaker needs to supply as much fresh SF 6 gas molecules as possible to the generated plasma space. The gas may be blown into the air, or the arc may be rotated electronically to guide the arc into a fresh gas molecule region.
SF 6 gas, which is currently applied to ultra-high voltage transformers, is widely used as an insulation medium of ultra-high voltage equipment, but has a disadvantage of being expensive, liquefied at low temperature and high pressure, and causing greenhouse effect when released into the atmosphere. With the recent increase in environmental concerns and regulations, the Kyoto Protocol as a regulation on greenhouse gases has been officially entered into force, and SF 6 gas is highly likely to be regulated in the future due to total restrictions. Therefore, an insulating medium mixed with SF 6 gas and Air, N 2 , CO 2 , N 2 / O 2 syngas, He, etc. has been studied as an alternative. The greatest dual cooling effect is He, but also has the disadvantage of high price.
Semiconductor contact relays are large-capacity semiconductor switches with heat sinks used to drive motors, heaters, and bulbs that often need to switch electrical connections. Since there is no moving part, there is no mechanical wear and no electrical contact vibration by vibration without sparks. Compared with mechanical relays, when the semiconductor switch operates in saturation, the semiconductor contact relay causes a voltage drop of about 1.5V. At this time, the power consumption generates heat corresponding to the product of the voltage drop value and the conduction current value. Therefore, an appropriate heat sink must be installed. Heat sinks, which require heat sinks to be proportional to the current capacity, do not allow small and light manufacturing of large capacity semiconductor contact relays. On the other hand, a conventional intelligent power semiconductor switch includes current sensor means for providing an electrical sensor signal proportional to the total current flowing through the semiconductor switch. The following is a summary of the advantages and disadvantages of semiconductor relays versus mechanical relays.
Advantages
1. Semiconductor relays are faster than electromechanical relays; Their switching time depends on the microsecond to millisecond time required to turn the LED on and off.
2. No moving parts, no wear
3. There is no side effect caused by vibration and it operates cleanly and without electric shaking.
4. When switching, there is no arc, so the electric noise is reduced.
5. Can be used in explosion environments where sparking should not occur when switching
6. Operates completely quietly
7. Can continue to operate under severe vibration
Disadvantages
1. When conducting, the voltage drop is bigger than that of the mechanical and electronic contact relay, which generates a lot of heat, requiring a large heat sink.
2. Shorter faults than electromechanical contact relays
3. Electrical noise increases when challenged
4. There is low resistance and reverse leakage current (level) during electrical disconnection.
5. There may be a malfunction due to a transient voltage.
6. Requires isolated semiconductor gate drive power supply
According to the Korean patent filed application (application number 102010002111), only a merit of a semiconductor switch and a relay is provided, thereby providing a method of removing an arc between contacts that may occur when the relay is connected and disconnected. This removes the arc by momentarily closing the semiconductor switch in parallel with the relay for a time that arc discharge can occur between the relay contacts. The characteristic of this technology is that the instantaneous current flowing through the semiconductor switch is large, but the current flowing through is shortened so that the heat generation of the semiconductor is minimized so that a heat sink is not required or may be very small.
In patent application technology (Application No. 102010002111), the arc eliminator and the hybrid switch should be operated with a pre-measured T_open and T_close values in order to minimize the heat generation of the semiconductor upon blocking. Therefore, the use of arc eliminators having the same T_open and T_close values in relays used in various environments has a disadvantage of minimizing heat generation of the semiconductor upon blocking. It is an object of the present invention to provide an arc eliminator that can be used for arbitrary relays in various environments and a hybrid switch that can be used in various environments without measuring in advance the characteristic values T_open and T_close of the contacts.
Referring to FIG. 1, let d_spark be the distance between the contacts where spark discharge starts when the contacts approach slowly. The time at which the distance d between the opening and closing signal reference contacts becomes d_spark in the contact process is called T_spark, and the time at which the opening and closing signal reference contacts start to be separated in the separation process is called T_move, and the distance between the contacts starting to move away from T_move. Let T_open be the time d becomes d_spark. That is, the moving contact starts to be separated from the opening / closing signal reference T_move for separation, and the distance d between the contacts becomes d_spark at (T_move + T_close). An arc discharge may exist from T_arc to a contact state in the contact process. In T_move, the spark discharge occurs because the distance d between the contacts is close to zero. After the time elapses in the separation process (T_move + Topen), the distance d between the contacts is large (d> d_spark), and spark discharge does not occur. However, there may be an arc by brush discharge or corona discharge since the ions created by the previous spark discharge exist between the electrodes.
The key to solving the problem is a semiconductor that automatically detects the time corresponding to (T_move + T_open) and (T_move + T_open + Tclose) in patent application technology (Application No. 102010002111) to various environments, and is connected in parallel with the contacts in electrical parallel. Removing the arc by activating the switch is key.
The construction principle of the relay current detection type arc eliminator according to the present invention will be described with reference to FIG. 2 as follows. The relay current detecting arc eliminator includes two
The operation principle of the relay contact current detection type arc eliminator according to the present invention will be described with reference to FIG. 3.
Now, when the contact current signal has a positive value, the
Now consider the blocking process after the open / close signal changes from 1 to 0 in the contact state. Although the
In the contact state, the contacts are spaced immediately after the time point T_move when the open / close signal is changed from 1 to 0. At this time, since the voltage between the contacts is about 1.5V saturation voltage of the
Now, since the arc generation time is very short in the process of opening and closing the signal from 0 to 1, let's look at the operation principle of controlling the arc only in the blocking process. To this end, if T_on (= T_move + T_open) has elapsed since the change from the switching signal 1 to 0 and the current detected by the
Now let's discuss how to get the value of T_move + T_open dynamically. When the open / close signal is 0, current may flow by the arc during T_move to T_open. Here, let the current through the contacts be I_contacts. I_contacts decrease rapidly from T_move to T_open, but the current flowing after (T_move + T_open) decreases slowly due to brush discharge or corona discharge. That is, when the open / close signal is 0, the time point at which the absolute value of the derivative value with respect to the time of the contact current sensor signal value proportional to I_contacts falls below a certain limit (T_move + T_open). Therefore, if Ton is the point at which the absolute value of the derivative value with respect to time of the contact current sensor signal value proportional to I_contacts falls below a certain limit, the dynamically determined Toff is determined after T_close at Ton time.
In the operation principle of the present invention in which the arc is controlled, the time from T_arc to contact, T_open and T_close are all very short, so that even when assumed to be about 1 ms, it is not even 1/1000 of the calorific value during saturation conduction for 1 second. Therefore, compared with the case of using a semiconductor contact relay, even if the heat dissipation capacity is only 1/1000 level, it is possible to manufacture a relay without arc generation. That means you don't need a heat sink.
The configuration principle and operation principle of the hybrid switch according to the present invention will be described with reference to FIGS. 4 and 5, respectively.
Referring to FIG. 4, the current detecting hybrid switch according to the present invention includes two
A preferred embodiment of a hybrid switch is illustrated in FIG. 5 to explain the principle of operation, the principle of operation of which is the same as that of the preferred embodiment of the arc eliminator of FIG.
6 and 7 are a conceptual view and an embodiment of a contact current detecting arc eliminator characterized in that it comprises a failure prevention devices (31, 32, 33, 34, 35). A current detecting arc eliminator comprising anti-failure devices with reference to FIG. 6 includes two power terminals 10, 20 for facilitating electrical connection between the power source and the load and the present invention; A relay dedicated terminal 11 connected to one terminal of the relay for measuring contact current; Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected; A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal; A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing in the semiconductor switch 30 and connected in parallel with the semiconductor switch 30; A semiconductor current sensor 33 for generating a semiconductor current signal proportional to the current flowing in the semiconductor switch 30; A temperature sensor 34 for generating a temperature signal proportional to the temperature of the semiconductor switch 30; A semiconductor current blocking fuse 32 which cuts off a current when a current of a predetermined amperage or more flows in order to block a current flowing in the semiconductor switch 30 when a short circuit of the semiconductor switch 30 occurs; The semiconductor switch is connected to the semiconductor current sensor 33 and the semiconductor temperature sensor 34 so that a current equal to or greater than a preset current flows in the semiconductor switch 33 or the semiconductor switch 33 rises above the preset temperature. An
The operation principle of the fault-tolerant current detecting arc eliminator having the fail-
8 and 9 are conceptual diagrams and embodiments of a contact current detection type hybrid switch characterized in that the failure prevention devices (31, 33, 34, 32, 35) are provided. Referring to FIG. 8, a current detecting hybrid switch comprising failure preventing devices includes two power terminals 10 and 20 for facilitating electrical connection between a power supply, a load, and the present invention; Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected; A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal; A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing in the semiconductor switch 30 and connected in parallel with the semiconductor switch 30; A semiconductor current sensor 33 for generating a semiconductor current signal proportional to the current flowing in the semiconductor switch 30; A temperature sensor 34 for generating a temperature signal proportional to the temperature of the semiconductor switch 30; A semiconductor current blocking fuse 32 which cuts off a current when a current of a predetermined amperage or more flows in order to block a current flowing in the semiconductor switch 30 when a short circuit of the semiconductor switch 30 occurs; The semiconductor switch is connected to the semiconductor current sensor 33 and the semiconductor temperature sensor 34 so that a current equal to or greater than a preset current flows in the semiconductor switch 33 or the semiconductor switch 33 rises above the preset temperature. An
Referring to FIG. 9, the operation principle of the contact current detecting hybrid switch characterized by including the failure preventing devices is not significantly different from the contact current detecting arc eliminator characterized by the failure preventing devices described in FIG. 7. not.
10 and 11 are schematic conceptual diagrams and embodiments of an arc eliminator having failure prevention devices. With reference to FIG. 10, an arc eliminator comprising fail-safe devices includes two power terminals 10, 20 for facilitating electrical connection between the power source and the load and the present invention; Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected; A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal; A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing in the semiconductor switch 30 and connected in parallel with the semiconductor switch 30; A semiconductor current sensor 33 for generating a semiconductor current signal proportional to the current flowing in the semiconductor switch 30; A temperature sensor 34 for generating a temperature signal proportional to the temperature of the semiconductor switch 30; A semiconductor current blocking fuse 32 which cuts off a current when a current of a predetermined amperage or more flows in order to block a current flowing in the semiconductor switch 30 when a short circuit of the semiconductor switch 30 occurs; The semiconductor switch is connected to the semiconductor current sensor 33 and the semiconductor temperature sensor 34 so that a current equal to or greater than a preset current flows in the semiconductor switch 33 or the semiconductor switch 33 rises above the preset temperature. An
The operation principle of the fail-safe arc eliminator having the fail-
By setting Ton = T_arc when the open / close signal changes from 0 to 1 and Toff = (T_move + T_open) when the open / close signal changes from 1 to 0, an arc eliminator with no arc can be realized.
Now, since the arc generation time is very short in the process of opening and closing the signal from 0 to 1, let's look at the operation principle of controlling the arc only in the blocking process. To this end, the change from the opening and closing signal 1 to 0 is T_on = (T_move + T_open) and Toff = (T_move + T_open + T_close) in the process to remove the arc. To do this, use T_move and T_open, which are measured in advance, and set T_close to about 0.2 ms.
12 and 13 are schematic conceptual diagrams and embodiments of a hybrid switch including fail-safe devices. Referring to FIG. 12, a hybrid switch including failure preventing devices includes two power terminals 10 and 20 for facilitating electrical connection between a power supply, a load, and the present invention; Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected; A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal; A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30; A semiconductor current blocking fuse 32 which cuts off a current when a current exceeding a specific amperage preset in order to block an excessive current flowing in the semiconductor switch 30; A semiconductor current sensor 33 for generating a semiconductor current signal proportional to the current flowing in the semiconductor switch 30; A temperature sensor 34 for generating a temperature signal proportional to the temperature of the semiconductor switch 30; The semiconductor switch is connected to the semiconductor current sensor 33 and the semiconductor temperature sensor 34 so that a current higher than a preset current flows in the semiconductor switch 33 or the semiconductor switch 33 rises above the preset temperature. An
The operation principle of the fail-safe hybrid switch having the fail-
When the contact current detecting arc eliminator according to the present invention is electrically connected in parallel with the contact relay, the arc generated between the contacts of the relay is minimized to increase the electrical life of the relay. On the other hand, the hybrid switch according to the present invention provides a power switch small and light with a minimum of arcs generated between the contacts without a large heat sink. On the other hand, the current detection failure prevention arc eliminator and the current detection failure prevention hybrid switch with additional functions to prevent the failure to prevent the failure and effectively cut off the power supply in case of failure.
Figure 1. Distance between contacts where sparks occur
2 is a conceptual diagram of the contact current detecting arc eliminator
3. Preferred Embodiment of Contact Current Detection Arc Eliminator
4 is a conceptual diagram of the configuration of the contact current detection hybrid switch
5. Preferred Embodiment of Contact Current Detection Hybrid Switch
6. A conceptual diagram of the construction of a contact current detecting arc eliminator with fault protection devices
Figure 7. An embodiment of a switch of a contact current detecting arc eliminator with fault protection devices
8. A conceptual diagram of the configuration of a contact current detection type hybrid switch with fault protection devices
9. Embodiment of a contact current detection type hybrid switch with fault protection devices
10. Conceptual view of the arc eliminator with fault protection devices
Figure 11. An embodiment of a switch of an arc eliminator with fault protection devices
12. A conceptual diagram of a hybrid switch having fault protection devices
13. Embodiment of a hybrid switch with fault protection devices
T_spark, T_move, T_open, and T_close all depend on the shape of the contacts and the driving method of the moving contact, but normally the relay has an operating frequency of 8 ms or less, so the following T_spark (~ 3ms), T_move (~ 1ms), T_open (~ 1ms), T_close (~ 1ms) the present invention operates.
10, 20 ~ 2 power terminals to facilitate electrical connection with an external system and the present invention
A semiconductor switch that is connected to 30 to 2
31 ~ Freewheel diode to prevent damage to
33 ~ current signal generator of the
34 ~ temperature measuring device of
32 ~ Fuse to cut off in case of short circuit of
35 ~ fault signal generator
40 ~ Contact current sensor to generate a contact current signal, an electrical signal that depends on the current flowing through the contacts
50 ~ The semiconductor switch driver electrically closes the
Two open / close signal terminals to which an electrical open / close signal is connected to open or close an electrical connection between 51, 52, and two
60 (in FIGS. 2, 3, 6, 7, 9, 10, and 11) to the heat dissipation function of the
60 (in FIGS. 4, 5, 8, and 9) to the heat dissipation function of the
Claims (17)
A relay dedicated terminal 11 connected to one terminal of the relay for measuring contact current;
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A contact current sensor 40 for generating a contact current signal, which is an electrical signal that depends on the current flowing through the relay contacts;
Depending on the open / close signal and the contact current signal, the semiconductor switch 30 is closed when the contact current signal has a positive value, and the semiconductor switch 30 is opened when the contact current signal is 0, The semiconductor switch 30 is closed once after a specific time Ton from the time point of the change of the electrical open / close signal, and the semiconductor switch 30 is opened once in the open state after a time Toff from the time of the change of the electrical open / close signal. A driving unit 50;
An arc eliminator and a terminal, characterized in that it comprises a frame (60) for heat dissipation of the semiconductor switch (30) to prevent damage due to heat generation and to mechanically arrange and connect the components of the invention and the relay which is an external system. (11) and the terminal (20) is connected in parallel with the main terminals of the relay which is an external system, and the open / close signal terminals (51, 52) is connected to the drive terminals of the relay which is an external system to use.
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A contact current sensor 40 for generating a contact current signal, which is an electrical signal that depends on the current flowing through the contacts 70, 80;
Depending on the open / close signal and the contact current signal, the semiconductor switch 30 is closed when the contact current signal has a positive value, and the semiconductor switch 30 is opened when the contact current signal is 0, The semiconductor switch 30 is closed once after a specific time Ton from the time point of the change of the electrical open / close signal, and the semiconductor switch 30 is opened once in the open state after a time Toff from the time of the change of the electrical open / close signal. A driving unit 50;
A fixed contact 70 connected to the terminal 10 or the terminal 20 by a conductor and fixed thereto;
A movable contact 80 connected to the terminal 20 or the terminal 10 by a conductor and movable;
The movable contact 80 is moved depending on the electrical opening and closing signal to convert the fixed contact 70 and the movable contact 80 into a contact state in a spaced apart state, and the movable contact 80 is moved in the contact state to fix the fixed contact ( 70 and a moving contact drive device 90 for converting the moving contact 80 into a spaced state;
Hybrid switch, characterized in that it comprises a frame 60 to prevent damage to each of the heat generated by the semiconductor switch 30, the structural arrangement of the components of the invention
A relay dedicated terminal 11 connected to one terminal of the relay for measuring contact current;
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
A contact current sensor 40 for generating a contact current signal, which is an electrical signal that depends on the current flowing through the relay contacts;
Depending on the open / close signal and the contact current signal, the semiconductor switch 30 is closed when the contact current signal has a positive value, and the semiconductor switch 30 is opened when the contact current signal is 0, The semiconductor switch 30 is closed once after a specific time Ton from the time point of the change of the electrical open / close signal, and the semiconductor switch 30 is opened once in the open state after a time Toff from the time of the change of the electrical open / close signal. A driving unit 50;
An arc eliminator and a terminal, characterized in that it comprises a frame (60) for heat dissipation of the semiconductor switch (30) to prevent damage due to heat generation and to mechanically arrange and connect the components of the invention and the relay which is an external system. (11) and the terminal (20) is connected in parallel with the main terminals of the relay which is an external system, and the open / close signal terminals (51, 52) is connected to the drive terminals of the relay which is an external system to use.
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
A contact current sensor 40 for generating a contact current signal, which is an electrical signal that depends on the current flowing through the contacts 70, 80;
Depending on the open / close signal and the contact current signal, the semiconductor switch 30 is closed when the contact current signal has a positive value, and the semiconductor switch 30 is opened when the contact current signal is 0, The semiconductor switch 30 is closed once after a specific time Ton from the time point of the change of the electrical open / close signal, and the semiconductor switch 30 is opened once in the open state after a time Toff from the time of the change of the electrical open / close signal. A driving unit 50;
A fixed contact 70 connected to the terminal 10 or the terminal 20 by a conductor and fixed thereto;
A movable contact 80 connected to the terminal 20 or the terminal 10 by a conductor and movable;
The movable contact 80 is moved depending on the electrical opening and closing signal to convert the fixed contact 70 and the movable contact 80 into a contact state in a spaced apart state, and the movable contact 80 is moved in the contact state to fix the fixed contact ( 70 and a moving contact drive device 90 for converting the moving contact 80 into a spaced state;
Hybrid switch, characterized in that it comprises a frame 60 to prevent damage to each of the heat generated by the semiconductor switch 30, the structural arrangement of the components of the invention
A relay dedicated terminal 11 connected to one terminal of the relay for measuring contact current;
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
A semiconductor current blocking fuse 32 which cuts off a current when a current exceeding a specific amperage preset in order to block an excessive current flowing in the semiconductor switch 30;
A contact current sensor 40 for generating a contact current signal, which is an electrical signal that depends on the current flowing through the relay contacts;
Depending on the open / close signal and the contact current signal, the semiconductor switch 30 is closed when the contact current signal has a positive value, and the semiconductor switch 30 is opened when the contact current signal is 0, The semiconductor switch 30 is closed once after a specific time Ton from the time point of the change of the electrical open / close signal, and the semiconductor switch 30 is opened once in the open state after a time Toff from the time of the change of the electrical open / close signal. A driving unit 50;
An arc eliminator and a terminal, characterized in that it comprises a frame (60) for heat dissipation of the semiconductor switch (30) to prevent damage due to heat generation and to mechanically arrange and connect the components of the invention and the relay which is an external system. (11) and the terminal (20) is connected in parallel with the main terminals of the relay which is an external system, and the open / close signal terminals (51, 52) is connected to the drive terminals of the relay which is an external system to use.
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
A semiconductor current blocking fuse 32 which cuts off a current when a current exceeding a specific amperage preset in order to block an excessive current flowing in the semiconductor switch 30;
A contact current sensor 40 for generating a contact current signal, which is an electrical signal that depends on the current flowing through the contacts 70, 80;
Depending on the open / close signal and the contact current signal, the semiconductor switch 30 is closed when the contact current signal has a positive value, and the semiconductor switch 30 is opened when the contact current signal is 0, The semiconductor switch 30 is closed once after a specific time Ton from the time point of the change of the electrical open / close signal, and the semiconductor switch 30 is opened once in the open state after a time Toff from the time of the change of the electrical open / close signal. A driving unit 50;
A fixed contact 70 connected to the terminal 10 or the terminal 20 by a conductor and fixed thereto;
A movable contact 80 connected to the terminal 20 or the terminal 10 by a conductor and movable;
The movable contact 80 is moved depending on the electrical opening and closing signal to convert the fixed contact 70 and the movable contact 80 into a contact state in a spaced apart state, and the movable contact 80 is moved in the contact state to fix the fixed contact ( 70 and a moving contact drive device 90 for converting the moving contact 80 into a spaced state;
Hybrid switch, characterized in that it comprises a frame 60 to prevent damage to each of the heat generated by the semiconductor switch 30, the structural arrangement of the components of the invention
A relay dedicated terminal 11 connected to one terminal of the relay for measuring contact current;
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
A semiconductor current blocking fuse 32 which cuts off a current when a current exceeding a specific amperage preset in order to block an excessive current flowing in the semiconductor switch 30;
A semiconductor current sensor 33 for generating a semiconductor current signal proportional to the current flowing in the semiconductor switch 30; A temperature sensor 34 for generating a temperature signal proportional to the temperature of the semiconductor switch 30; The semiconductor switch is connected to the semiconductor current sensor 33 and the semiconductor temperature sensor 34 so that a current higher than a preset current flows in the semiconductor switch 33 or the semiconductor switch 33 rises above the preset temperature. An error signal generator 35 for generating an error signal meaning a;
A contact current sensor 40 for generating a contact current signal, which is an electrical signal that depends on the current flowing through the relay contacts;
Depending on the open / close signal and the error signal and the contact current signal, if the error signal is 0, the semiconductor switch 30 is opened irrespective of other signals, and if the error signal is 1 and the contact current signal has a positive value, the semiconductor switch 30 is closed, and if the error signal is 1, the contact current signal is 0, the semiconductor switch 30 is opened, and the semiconductor switch 30 is closed after a specific time Ton from the time point of the change of the electrical open / close signal. A semiconductor switch driver 50 for performing one time in a state and opening the semiconductor switch 30 in an open state after a specific time Toff from a time point at which the electrical switching signal is changed;
An arc eliminator and a terminal, characterized in that it comprises a frame (60) for heat dissipation of the semiconductor switch (30) to prevent damage due to heat generation and to mechanically arrange and connect the components of the invention and the relay which is an external system. (11) and the terminal (20) is connected in parallel with the main terminals of the relay which is an external system, and the open / close signal terminals (51, 52) is connected to the drive terminals of the relay which is an external system to use.
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
A semiconductor current blocking fuse 32 which cuts off a current when a current exceeding a specific amperage preset in order to block an excessive current flowing in the semiconductor switch 30;
A semiconductor current sensor 33 for generating a semiconductor current signal proportional to the current flowing in the semiconductor switch 30; A temperature sensor 34 for generating a temperature signal proportional to the temperature of the semiconductor switch 30; The semiconductor switch is connected to the semiconductor current sensor 33 and the semiconductor temperature sensor 34 so that a current higher than a preset current flows in the semiconductor switch 33 or the semiconductor switch 33 rises above the preset temperature. An error signal generator 35 for generating an error signal meaning a;
A contact current sensor 40 for generating a contact current signal, which is an electrical signal that depends on the current flowing through the contacts 70, 80;
Depending on the open / close signal and the error signal and the contact current signal, if the error signal is 0, the semiconductor switch 30 is opened irrespective of other signals, and if the error signal is 1 and the contact current signal has a positive value, the semiconductor switch 30 is closed, and if the error signal is 1, the contact current signal is 0, the semiconductor switch 30 is opened, and the semiconductor switch 30 is closed after a specific time Ton from the time point of the change of the electrical open / close signal. A semiconductor switch driver 50 for performing one time in a state and opening the semiconductor switch 30 in an open state after a specific time Toff from a time point at which the electrical switching signal is changed;
A fixed contact 70 connected to the terminal 10 or the terminal 20 by a conductor and fixed thereto;
A movable contact 80 connected to the terminal 20 or the terminal 10 by a conductor and movable;
The movable contact 80 is moved depending on the electrical opening and closing signal to convert the fixed contact 70 and the movable contact 80 into a contact state in a spaced apart state, and the movable contact 80 is moved in the contact state to fix the fixed contact ( 70 and a moving contact drive device 90 for converting the moving contact 80 into a spaced state;
To prevent the damage caused by the heat generation of the semiconductor switch 30, and the components 10, 20, 30, 31, 32, 33, 34, 35, 40, 50, 51, 52, 70, 80, Hybrid switch, characterized in that it comprises a frame 60 for mechanically arranging 90
A relay dedicated terminal 11 connected to one terminal of the relay for measuring contact current;
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
Depending on the open / close signal, the semiconductor switch 30 is closed once after a specific time Ton from the time point of the change of the electrical open / close signal, and the semiconductor switch 30 is opened after the time Toff from the change time of the electrical open / close signal. A semiconductor switch driver 50 once in a state;
An arc eliminator and a terminal, characterized in that it comprises a frame (60) for heat dissipation of the semiconductor switch (30) to prevent damage due to heat generation and to mechanically arrange and connect the components of the invention and the relay which is an external system. (11) and the terminal (20) is connected in parallel with the main terminals of the relay which is an external system, and the open / close signal terminals (51, 52) is connected to the drive terminals of the relay which is an external system to use.
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
Depending on the open / close signal, the semiconductor switch 30 is closed once after a specific time Ton from the time point of the change of the electrical open / close signal, and the semiconductor switch 30 is opened after the time Toff from the change time of the electrical open / close signal. A semiconductor switch driver 50 once in a state;
A fixed contact 70 connected to the terminal 10 or the terminal 20 by a conductor and fixed thereto;
A movable contact 80 connected to the terminal 20 or the terminal 10 by a conductor and movable;
The movable contact 80 is moved depending on the electrical opening and closing signal to convert the fixed contact 70 and the movable contact 80 into a contact state in a spaced apart state, and the movable contact 80 is moved in the contact state to fix the fixed contact ( 70 and a moving contact drive device 90 for converting the moving contact 80 into a spaced state;
Hybrid switch, characterized in that it comprises a frame 60 to prevent damage to each of the heat generated by the semiconductor switch 30, the structural arrangement of the components of the invention
A relay dedicated terminal 11 connected to one terminal of the relay for measuring contact current;
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
A semiconductor current blocking fuse 32 which cuts off a current when a current exceeding a specific amperage preset in order to block an excessive current flowing in the semiconductor switch 30;
Depending on the open / close signal, the semiconductor switch 30 is closed once after a specific time Ton from the time point of the change of the electrical open / close signal, and the semiconductor switch 30 is opened after the time Toff from the change time of the electrical open / close signal. A semiconductor switch driver 50 once in a state;
An arc eliminator and a terminal, characterized in that it comprises a frame (60) for heat dissipation of the semiconductor switch (30) to prevent damage due to heat generation and to mechanically arrange and connect the components of the invention and the relay which is an external system. (11) and the terminal (20) is connected in parallel with the main terminals of the relay which is an external system, and the open / close signal terminals (51, 52) is connected to the drive terminals of the relay which is an external system to use.
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
A semiconductor current blocking fuse 32 which cuts off a current when a current exceeding a specific amperage preset in order to block an excessive current flowing in the semiconductor switch 30;
Depending on the open / close signal, the semiconductor switch 30 is closed once after a specific time Ton from the time point of the change of the electrical open / close signal, and the semiconductor switch 30 is opened after the time Toff from the change time of the electrical open / close signal. A semiconductor switch driver 50 once in a state;
A fixed contact 70 connected to the terminal 10 or the terminal 20 by a conductor and fixed thereto;
A movable contact 80 connected to the terminal 20 or the terminal 10 by a conductor and movable;
The movable contact 80 is moved depending on the electrical opening and closing signal to convert the fixed contact 70 and the movable contact 80 into a contact state in a spaced apart state, and the movable contact 80 is moved in the contact state to fix the fixed contact ( 70 and a moving contact drive device 90 for converting the moving contact 80 into a spaced state;
Hybrid switch, characterized in that it comprises a frame 60 to prevent damage to each of the heat generated by the semiconductor switch 30, the structural arrangement of the components of the invention
A relay dedicated terminal 11 connected to one terminal of the relay for measuring contact current;
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
A semiconductor current blocking fuse 32 which cuts off a current when a current exceeding a specific amperage preset in order to block an excessive current flowing in the semiconductor switch 30;
A semiconductor current sensor 33 for generating a semiconductor current signal proportional to the current flowing in the semiconductor switch 30; A temperature sensor 34 for generating a temperature signal proportional to the temperature of the semiconductor switch 30; The semiconductor switch is connected to the semiconductor current sensor 33 and the semiconductor temperature sensor 34 so that a current higher than a preset current flows in the semiconductor switch 33 or the semiconductor switch 33 rises above the preset temperature. An error signal generator 35 for generating an error signal meaning a;
A contact current sensor 40 for generating a contact current signal, which is an electrical signal that depends on the current flowing through the relay contacts;
In response to the open / close signal and the error signal, if the error signal is 0, the semiconductor switch 30 is opened irrespective of other signals. If the error signal is 1, the semiconductor switch 30 is opened after a specific time Ton from the time point of the change of the electrical open / close signal. A semiconductor switch driver 50 which is configured to be closed once and the semiconductor switch 30 is opened once after a specific time Toff from a time point at which the electrical switching signal is changed;
An arc eliminator and a terminal, characterized in that it comprises a frame (60) for heat dissipation of the semiconductor switch (30) to prevent damage due to heat generation and to mechanically arrange and connect the components of the invention and the relay which is an external system. (11) and the terminal (20) is connected in parallel with the main terminals of the relay which is an external system, and the open / close signal terminals (51, 52) is connected to the drive terminals of the relay which is an external system to use.
Opening and closing signal terminals 51 and 52 to which an electrical opening and closing signal for opening and closing an electrical connection between two power terminals 10 and 20 is connected;
A semiconductor switch 30 electrically connected to the two terminals 10 and 20 and capable of being electrically opened and closed in dependence on the electrical opening / closing signal;
A freewheel diode 31 in which the forward direction of the diode is opposite to the current flowing when the semiconductor switch 30 is closed and connected in parallel with the semiconductor switch 30;
A semiconductor current blocking fuse 32 which cuts off a current when a current exceeding a specific amperage preset in order to block an excessive current flowing in the semiconductor switch 30;
A semiconductor current sensor 33 for generating a semiconductor current signal proportional to the current flowing in the semiconductor switch 30; A temperature sensor 34 for generating a temperature signal proportional to the temperature of the semiconductor switch 30; The semiconductor switch is connected to the semiconductor current sensor 33 and the semiconductor temperature sensor 34 so that a current higher than a preset current flows in the semiconductor switch 33 or the semiconductor switch 33 rises above the preset temperature. An error signal generator 35 for generating an error signal meaning a;
In response to the open / close signal and the error signal, if the error signal is 0, the semiconductor switch 30 is opened irrespective of other signals. If the error signal is 1, the semiconductor switch 30 is opened after a specific time Ton from the time point of the change of the electrical open / close signal. A semiconductor switch driver 50 which is configured to be closed once and the semiconductor switch 30 is opened once after a specific time Toff from a time point at which the electrical switching signal is changed;
A fixed contact 70 connected to the terminal 10 or the terminal 20 by a conductor and fixed thereto;
A movable contact 80 connected to the terminal 20 or the terminal 10 by a conductor and movable;
The movable contact 80 is moved depending on the electrical opening and closing signal to convert the fixed contact 70 and the movable contact 80 into a contact state in a spaced apart state, and the movable contact 80 is moved in the contact state to fix the fixed contact ( 70 and a moving contact drive device 90 for converting the moving contact 80 into a spaced state;
Hybrid switch, characterized in that it comprises a frame 60 to prevent damage to each of the heat generated by the semiconductor switch 30, the structural arrangement of the components of the invention
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100020596A KR20100040819A (en) | 2010-03-09 | 2010-03-09 | An arc remover with a current sensor and a hybrid switch with a current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100020596A KR20100040819A (en) | 2010-03-09 | 2010-03-09 | An arc remover with a current sensor and a hybrid switch with a current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20100040819A true KR20100040819A (en) | 2010-04-21 |
Family
ID=42216783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020100020596A KR20100040819A (en) | 2010-03-09 | 2010-03-09 | An arc remover with a current sensor and a hybrid switch with a current sensor |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20100040819A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101124291B1 (en) * | 2011-07-01 | 2012-03-27 | 김진규 | Device for preventing spark of relay module and method thereof |
| KR20170010999A (en) | 2015-07-21 | 2017-02-02 | 한국단자공업 주식회사 | Hybrid pra control method |
| KR20170028041A (en) | 2015-09-03 | 2017-03-13 | 한국단자공업 주식회사 | Smart Power Relay Assembly |
| KR20180042755A (en) | 2016-10-18 | 2018-04-26 | 한국단자공업 주식회사 | Device for fault detection of pra |
| KR20190004482A (en) | 2017-07-04 | 2019-01-14 | 한국단자공업 주식회사 | Device for fault detection of battery system |
| WO2019212125A1 (en) * | 2018-04-30 | 2019-11-07 | 엘에스산전 주식회사 | Circuit breaker control module |
| US11239652B2 (en) | 2018-12-26 | 2022-02-01 | Eaton Intelligent Power Limited | Compliant, hazardous environment circuit protection devices, systems and methods |
| US11270854B2 (en) | 2018-12-26 | 2022-03-08 | Eaton Intelligent Power Limited | Circuit protection devices, systems and methods for explosive environment compliance |
| WO2022050636A1 (en) * | 2020-09-01 | 2022-03-10 | 주식회사 엘지에너지솔루션 | Relay and battery system comprising same |
| US11303111B2 (en) | 2018-12-26 | 2022-04-12 | Eaton Intelligent Power Limited | Configurable modular hazardous location compliant circuit protection devices, systems and methods |
| US11615925B2 (en) | 2018-12-26 | 2023-03-28 | Eaton Intelligent Power Limited | Hazardous location compliant circuit protection devices having enhanced safety intelligence, systems and methods |
| US11613915B2 (en) | 2018-12-26 | 2023-03-28 | Eaton Intelligent Power Limited | Mechanical lockout for non-mechanical-interfacing electronic switch |
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2010
- 2010-03-09 KR KR1020100020596A patent/KR20100040819A/en not_active Application Discontinuation
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101124291B1 (en) * | 2011-07-01 | 2012-03-27 | 김진규 | Device for preventing spark of relay module and method thereof |
| WO2013005932A2 (en) * | 2011-07-01 | 2013-01-10 | Kim Jin Kyu | Spark arresting apparatus and method for a relay module |
| WO2013005932A3 (en) * | 2011-07-01 | 2013-04-04 | Kim Jin Kyu | Spark arresting apparatus and method for a relay module |
| KR20170010999A (en) | 2015-07-21 | 2017-02-02 | 한국단자공업 주식회사 | Hybrid pra control method |
| KR20170028041A (en) | 2015-09-03 | 2017-03-13 | 한국단자공업 주식회사 | Smart Power Relay Assembly |
| KR20180042755A (en) | 2016-10-18 | 2018-04-26 | 한국단자공업 주식회사 | Device for fault detection of pra |
| KR20190004482A (en) | 2017-07-04 | 2019-01-14 | 한국단자공업 주식회사 | Device for fault detection of battery system |
| EP3790138A4 (en) * | 2018-04-30 | 2021-06-09 | Ls Electric Co., Ltd. | Circuit breaker control module |
| WO2019212125A1 (en) * | 2018-04-30 | 2019-11-07 | 엘에스산전 주식회사 | Circuit breaker control module |
| US11811218B2 (en) | 2018-04-30 | 2023-11-07 | Ls Electric Co., Ltd. | Circuit breaker control module |
| US11239652B2 (en) | 2018-12-26 | 2022-02-01 | Eaton Intelligent Power Limited | Compliant, hazardous environment circuit protection devices, systems and methods |
| US11270854B2 (en) | 2018-12-26 | 2022-03-08 | Eaton Intelligent Power Limited | Circuit protection devices, systems and methods for explosive environment compliance |
| US11303111B2 (en) | 2018-12-26 | 2022-04-12 | Eaton Intelligent Power Limited | Configurable modular hazardous location compliant circuit protection devices, systems and methods |
| US11615925B2 (en) | 2018-12-26 | 2023-03-28 | Eaton Intelligent Power Limited | Hazardous location compliant circuit protection devices having enhanced safety intelligence, systems and methods |
| US11613915B2 (en) | 2018-12-26 | 2023-03-28 | Eaton Intelligent Power Limited | Mechanical lockout for non-mechanical-interfacing electronic switch |
| WO2022050636A1 (en) * | 2020-09-01 | 2022-03-10 | 주식회사 엘지에너지솔루션 | Relay and battery system comprising same |
| EP4174899A4 (en) * | 2020-09-01 | 2023-12-20 | LG Energy Solution, Ltd. | Relay and battery system comprising same |
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