EP1042773A1 - Hybrid power relay - Google Patents
Hybrid power relayInfo
- Publication number
- EP1042773A1 EP1042773A1 EP98963611A EP98963611A EP1042773A1 EP 1042773 A1 EP1042773 A1 EP 1042773A1 EP 98963611 A EP98963611 A EP 98963611A EP 98963611 A EP98963611 A EP 98963611A EP 1042773 A1 EP1042773 A1 EP 1042773A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- voltage
- hybrid
- signal
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
- H01H2009/544—Contacts shunted by static switch means the static switching means being an insulated gate bipolar transistor, e.g. IGBT, Darlington configuration of FET and bipolar transistor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
- H01H2009/545—Contacts shunted by static switch means comprising a parallel semiconductor switch being fired optically, e.g. using a photocoupler
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
Definitions
- the invention relates to hybrid power relays used to open or close electrical circuits.
- Electromechanical type relays comprise one or more electrical contacts with mechanical displacement, coupled to a mobile element of the magnetic circuit of an electromagnet.
- the electromagnet is controlled by supplying its coil producing an induction flux in the magnetic circuit causing the displacement of the mobile element and the closing or opening of the electrical contacts of the relay.
- Sealing causes the appearance of charcoal between the contacts, due to the combustion of dust or particles of material at the time of the arc.
- One of the consequences of coal mining is the degradation of the quality of the contact by increasing the resistance to the passage of current.
- Static relays unlike electromechanical relays, do not use mobile mechanical elements but semiconductor components capable of opening or closing an electrical circuit in which they are inserted.
- Solid state relays use semiconductor components such as triacs, thyristors, transistors, MOS-thyristors known under the English name of "Insulated Gâte Controlled Thyristor” or “IGCT”, bipolar insulated gate transistors known as English name of "Insulated Gâte Bipolar Transistor" or "IGBT”, the MOS-controlled thyristors known by the English name of "MOS Controlled Thyristor" or "MCT".
- These types of semiconductor components include two power inputs intended to be connected to an electrical circuit and a control input putting the semiconductor component, when it is inserted into the electrical circuit by its two power inputs, either in a blocked state, or in a state passing between these two power inputs. In the blocked state, all the voltage of the electrical circuit is applied to the power inputs of the semiconductor component and in the on state the semiconductor is crossed by the current of the electrical circuit in which it is inserted.
- Static relays nevertheless have a drawback compared to electromechanical relays.
- the semiconductor component in the on (or saturated) state, the semiconductor component has, between its power inputs, when the current flows, a residual saturation voltage producing a dissipation of heat energy in the semiconductor component and an increase in its temperature.
- this residual saturation voltage is of the order of 1.5 volts. Therefore, the static power relays must be used in conjunction with thermal radiators to evacuate the heat energy dissipated by the semiconductor component and thus assure them a sufficient service life.
- hybrid relay In another type of relay commonly called hybrid relay, the semiconductor component is connected in parallel with the electrical contact with mechanical displacement of the electromechanical relay.
- the control of the hybrid relay simultaneously causes the semiconductor component which absorbs the switching arc to go on and the contact of the relay which short-circuits the semiconductor component closes.
- the contact having a very low resistance the current of the electric circuit passes by the contact and not by the semiconductor component which is defused thus avoiding its heating.
- this solution has drawbacks.
- an increase in resistance between the relay contacts due to different phenomena such as, for example, coal, oxidation, aging or a mechanical fault in the contacts, causes the appearance of a voltage drop between the contacts which can be high enough to prime the semiconductor component in parallel with the contact and cause a portion of it to pass through permanently , see practically the entire current of the electrical circuit in the semiconductor component, which produces its heating see its destruction, if it has not been equipped with a radiator.
- the present invention overcomes the drawbacks of the prior art by proposing a hybrid power relay intended to be inserted in an electrical circuit, the hybrid relay comprising an electrical contact with mechanical displacement, a semiconductor component in parallel on the contact. electric with mechanical displacement, means for controlling on the one hand the closing of the contact and the conduction of the semiconductor component in response to a first control signal, and on the other hand the opening of the contact and the setting conduction of the semiconductor component in response to a second control signal, characterized in that the control means comprise means for:
- the hybrid relay relay according to the invention can operate with any power component, namely, triacs, thyristors, but also transistors, IGBTs, IGCTs, MCTs.
- the hybrid power relay is designed to generate, from the first relay control signal, the closing signal of the contact and the first component conduction signal, independently of each other, which makes it possible to conduct the semiconductor component conduction either simultaneously with the contact closure signal, or before the signal of closing the contact. It is the same when opening the contact.
- An advantage deriving from this function is that the reaction time of the mechanical contact during the appearance, either of the closing signal or of the opening signal, does not intervene. Indeed, in the case of a relay having a fast response time, the conduction of the semiconductor component can be triggered when the contact is closed, before this closure and when the contact is opened, before this opening, this which ensures sufficient time for the establishment of the current in the semiconductor and thus effect either the opening or the closing of the contact with a substantially zero current.
- the conduction signal of the semiconductor component may be transmitted simultaneously with either the closing signal or the relay contact opening signal.
- the hybrid power relay according to the invention provides synchronized switching between the electric contact with mechanical displacement and the semiconductor component in parallel with the contact. This synchronization eliminates almost all of the electric arc that can occur on opening or closing of the electrical contact. Indeed, the opening or closing of the contact is only carried out when the semiconductor component is controlled in the on state.
- the hybrid power relay according to the invention has the advantage of making it unnecessary to use a radiator for the semiconductor component, which reduces the cost and the size of the hybrid relay. In fact, after closing the contact, stopping the first conduction signal of the semiconductor component prevents the latter from starting by the appearance of a permanent voltage drop across its terminals, due for example to coal or to a permanent mechanical fault of the contact, thus avoiding the passage of the current of the circuit electric in the semiconductor component and protecting it from abnormal heating or even destruction.
- FIG. 1 shows a block diagram of a hybrid power relay according to the invention
- FIG. 2 shows an electrical diagram of an embodiment of a hybrid power relay according to the invention
- FIG. 3a, 3b, 3c, 3d, 3e, 3f and 3g represent the operating diagrams of the hybrid power relay of Figure 2.
- a hybrid power relay 10 has two terminals A and B intended to be inserted in an electrical circuit CE.
- the hybrid relay is opened or closed by a control input ER of the hybrid relay 10.
- the hybrid relay 10 essentially comprises:
- Control means comprise a control circuit 40 having the control input ER of the hybrid relay, a first output X1 driving the control input EC of the semiconductor component 30 and a second output X2 supplying the coil 22.
- the hybrid power relay 10 may further comprise a protection 50 connected between the terminals A and B in order to protect the relay hybrid of any overvoltages that may appear on the CE electrical network.
- the semiconductor component 30 can be chosen from triacs, thyristors, transistors, IGBTs, IGCTs, MCTs and can be associated with one or more semiconductor components of the same type in order to ensure the functionality of the relay. hybrid power according to the type of electrical circuit in which the hybrid relay is inserted.
- the hybrid power relay has the advantage of ensuring synchronization of the control of the mechanical displacement contact and of the semiconductor component, taking into account requirements linked to the electrical circuit or to the loads connected to the electrical circuit. .
- the control means are configured to ensure switching of the hybrid relay when passing through a value close to 0 volts of the voltage of the electric circuit.
- the closing of the hybrid relay at any time during the period of the alternating voltage of the electric circuit, and in particular when this voltage is at its maximum, causes a sudden establishment of the current in the electric circuit which can present drawbacks for the connected equipment. to the electrical circuit, see for the electrical circuit itself.
- FIG. 2 represents an electrical diagram of a hybrid power relay 60, according to the invention using a triac in parallel with the mechanical displacement contact and comprising control means using a microcontroller.
- the microcontroller has the advantage of integrating in the hybrid relay a certain intelligence allowing to take into account many parameters related to the characteristics of the hybrid relay, and to those of the electric circuit in which the hybrid relay is inserted.
- the hybrid relay 60 is inserted into an alternating current electrical circuit comprising two channels, a first channel V1 and a second channel V2 under a voltage Ue between these channels. Channels V1 and V2 supply loads not shown in Figure 2.
- the hybrid relay 60 is inserted in the first channel V1 respectively by a first input terminal SA on the side of the voltage source Ue and by a first output terminal CA on the load side, and in the second channel V2 respectively by a second input terminal SB on the side of the voltage source Ue and by a second output terminal CB on the load side.
- the hybrid relay 60 comprises a contact 70 with mechanical displacement in parallel with a triac 80, the assembly constituted by the contact 70 in parallel with the triac 80 being inserted in the first channel V1 between the first input terminal SA and the first AC output terminal, the assembly ensuring the opening or closing of the first channel V1.
- the second channel V2 continuously crosses the hybrid relay, between the second input terminal SB and the second output terminal CB.
- the hybrid relay control means are supplied from the voltage Ue of the electrical circuit in which the hybrid relay is inserted by a supply circuit 90 and a regulation circuit 92.
- the supply circuit 90 is connected between the channels V1 and V2 of the electric circuit under the voltage Ue supplying, from the voltage Ue and through a capacitor C1, the energy necessary for supplying the control means of the hybrid relay .
- One side of the supply circuit 90 being connected to the first input terminal SA and the other side to the second input terminal SB.
- the supply circuit 90 supplies, according to a known diagram, a continuously constant supply voltage VL between a first line L1 and a second line 12.
- the second line L2 will be considered to be at a reference potential Vo.
- the regulation circuit 92 is connected between the first line L1 and the second line L2 under the supply voltage VL and supplies on a third line L3, a regulated voltage VC with respect to the second line L2 at the potential Vo of reference.
- the voltage VC supplies a microcontroller 100 for the control means of the hybrid relay.
- the control means of the hybrid relay essentially comprise the microcontroller 100 having - a first logic input E1 receiving opening control information (first control signal established on the input E1) and closing (second control signal established on the 'input E1) of the hybrid relay;
- the detection circuit comprises a pair of photodiodes D6 and D7 mounted in head to tail parallel optically coupled to a phototransistor Q6, this pair of photodiodes being in series with a circuit of the RC series type constituted by a resistor R17 and a capacitor C6, the pair of photodiodes and the RC circuit being connected in parallel on the whole of the triac 80 in parallel with the contact 70.
- the resistor R17 has a value of approximately 47 ohms and the capacitance C6 has a value about 10 nanofarads.
- a first logic output S1 provides a first signal for activating the triac 80 in response to the application to the input E1 of the first control signal (order to close the relay); the output S1 also provides a second conduction signal from the triac 80 in response to the application to the input E1 of the second control signal (order to open the relay).
- This output S1 drives an input of the triac 80 conduction control means.
- These means comprise a first follower transistor Q3 connected by its base on the one hand, to the first logic output S1 through a base resistor R7, and on the other hand to the reference potential Vo through a resistor R4, the emitter of the first follower transistor Q3 being connected to the reference potential Vo and the collector to an input 110 of a gate current generator 112, an output 114 of the trigger current generator 112 being connected to the trigger G of the triac 80 at the potential of the first channel V1 on the side of the voltage source Ue;
- a second logic output S2 provides a contact closing signal (high state on S2), in response to the establishment on input E1 of the first control signal, and a contact opening signal (low state on S2) ), in response to the establishment of the second control signal on input E1.
- the output S2 drives an input to the supply means of a coil 72 actuating the contact 70 with mechanical displacement.
- These means comprise a second follower transistor Q4 connected by its base on the one hand, to the second logic output S2 through a base resistor R8, and on the other hand to the reference potential Vo through a resistor R6, the emitter from the second follower transistor Q4 being connected to the reference potential Vo, and the collector, through a light-emitting diode D8, to a first supply terminal 118 of the coil 72, a second supply terminal 120 of the coil 72 being connected at the first line L1, at the supply voltage VL.
- the hybrid relay 60 comprises a control input having two control terminals GN and IN on which a voltage is applied whose level is used to establish the control signals on the input E1 of the microcontroller. Between the GN and IN terminals is connected a resistor R15 in series with a photodiode D5 optically coupled to a phototransistor Q5 of a first photocoupler U1.
- the first photocoupler U1 provides galvanic isolation between the control input of the hybrid relay and its elements under the voltage Ue of the electrical circuit.
- the phototransistor Q5 is connected by its collector to the third line L3 at the regulated voltage VC, and by its transmitter, on the one hand via a resistor R14 to the second line L2 at the reference potential Vo, and d on the other hand to the first logic input E1 of the microcontroller 100, this first logic input E1 receiving the information of command to open or close the hybrid relay.
- a control voltage Te applied between the two terminals GN and IN for controlling the hybrid relay produces a current le in the photodiode D5 sufficient to ignite it and saturate the phototransistor Q5.
- the saturation of the phototransistor Q5 switches its transmitter and the first logic input E1 of the microcontroller from the reference potential Vo, to the regulated potential VC, corresponding to a change in logic state of the first input E1 which goes from state 0 to l 'state 1. This change of state of the first input E1 is taken into account by the microcontroller which triggers a closing sequence of the hybrid relay 60.
- a second photocoupler U2 forming part of the detection circuit 102 ensures the generation of logic level IP pulses applied to the second logic input E2 of the microcontroller 100. These logic level pulses allow the microcontroller to determine on the one hand, the change in polarity of the voltage Ue of the electrical circuit (passage by a voltage Ue close to 0 volts) and on the other hand the state of the assembly constituted by the contact 70 in parallel with the triac 80.
- the photocoupler U2 comprises the pair of photodiodes D6 and D7 mounted in head-to-tail parallel optically coupled to the phototransistor Q6, one side of the pair of photodiodes being connected through a capacitor C6 on the first channel V1, on the side of the first AC output terminal of the hybrid relay, the other side of the pair being connected through a resistor R17 to the first channel V1 on the side of the first input terminal SA of the hybrid relay.
- a voltage V appearing at the terminals of the assembly constituted by the contact 70 in parallel with the triac 80 is applied to the detection circuit 102.
- the phototransistor Q6 is controlled on the one hand by one of the photodiodes of the pair of photodiodes D6 and D7, during one of the two half-waves of the voltage V and on the other hand by the other photodiode of said pair D6 and D7, during the other alternation of the voltage V.
- the phototransistor Q6 is connected by its collector to the third line L3 under the regulated voltage VC, and by its transmitter, on the one hand to the second line L2 at the reference potential Vo via a resistor R16, and d on the other hand to the second logic input E2 of the microcontroller 100.
- the voltage applied to the second input E2 is substantially equal to the regulated voltage VC (state 1) and when the phototransistor Q6 is blocked, it is substantially equal to the reference potential Vo (state 0).
- the hybrid relay is at rest, the contact 70 is open and the triac 80 is in the blocked state.
- the first channel V1 of the electrical circuit being interrupted by the hybrid relay the voltage V is substantially equal to the voltage Ue of the electrical circuit, producing a current Id in the detection circuit 102.
- the current Id turns on the photodiodes D6 and D7 respectively during of either alternation of the voltage V except for a short period of time corresponding to the passage through a maximum of voltage Vm. Indeed, the current in the capacitor C6 becomes zero when the derivative of the voltage V passes through 0, that is to say when the voltage V ceases to increase passing through a maximum voltage Vm to decrease.
- the two photodiodes D6 and D7 are extinguished and the phototransistor Q6 is blocked producing a pulse Im on the second logic input E2 of the microcontroller, the voltage of which passes from a voltage substantially equal to the regulated voltage VC at a voltage close to the reference potential Vo, to return to the regulated voltage VC and this at each half-cycle as long as the hybrid relay is open.
- the microcontroller 100 calculates from the time to, from a time tm at which the last pulse Im occurred, and from the period T of the voltage Ue of the electrical circuit, the time necessary to wait to carry out the triac 80 in saturated state, at a time when the voltage Ue is close to 0 volts, thus avoiding the appearance of steep switching edges in the electrical circuit .
- the triac 80 is in the on state, the contact 70 being still open, variations in the voltage V appear at the time of the change of alternation of an amplitude equal to the saturation voltage u1 of the triac 80, of the order of 1.5 volts.
- the hybrid delay is used in an electrical circuit with an alternative voltage Ue at a frequency of 50 Hertz.
- the alternation period T is in this example 20 milliseconds.
- FIG. 3a shows the voltage Ue applied to the input terminals SA and SB of the relay between the two channels V1 and V2, as a function of time t and around a value close to 0 volts, when the polarity changes.
- FIG. 3b shows the voltage V across the terminals of the assembly constituted by the contact 70 in parallel with the triac 80, inserted in the first channel V1, between the first input terminal SA and the first output terminal SB .
- the hybrid relay is at rest and in the open state, all the voltage Ue of the electrical circuit is applied to the terminals of the contact 70 and of the triac 80, the voltage V is substantially equal to the voltage Ue; - the current le in photodiode D5 is zero, no control voltage being applied between the control terminals GN and IN of the hybrid relay;
- the first logic input E1 of the microcontroller 100 is in state 0 (see FIG. 3c), the first logic output S1 and the second logic output S2 of the microcontroller 100 are in state 0.
- the hybrid relay 60 At an initial time, in a first phase, it is desired to close the hybrid relay 60 by applying the control voltage Te between the control terminals GN and IN of the hybrid relay.
- the control current passes through the photodiode D5 which lights up, saturating the phototransistor Q5 of the first photocoupler U1.
- the first logic input E1 of the microcontroller goes from state 0 to state 1, resulting in the appearance of a logic level potential (approximately the regulated voltage VC) applied to this first logic input E1 (see FIG. 3c).
- the microcontroller 100 is programmed, in this embodiment of the hybrid relay 60, to control the passage of the triac 80 to the on state, during a command to close the hybrid relay, only when the voltage Ue of the electrical circuit passes through a level close to 0 volts.
- Let t1 be the instant at which the first passage of 0 volts of the voltage Ue takes place (see FIG. 3a), after the instant to command the closing of the relay.
- the microcontroller 100 switches the first logic output S1 from state 0 to state 1 (see figure 3d) and the second logic output S2 from state 0 to state 1 (see figure 3e ).
- the first follower transistor Q3 saturates putting the input 110 of the current generator 112 to the reference potential Vo passing through the output 114 of the current generator, a current Ig in the trigger of the triac 80.
- the triac under the voltage Ue starts.
- This initiation is represented by the diagram in FIG. 3f showing the passage of the triac 80 from a state 0, or blocked state (before t1) to a state 1, or state passing at time t1.
- the second logic output S2 passing to state 1 applies a potential of high logic level through the base resistance R8, to the base of the second follower transistor Q4 which saturates, causing a current Ib to flow through the coil 72, the supply terminals 118 and 120 of the coil being connected respectively to the supply voltage VL and to the reference potential Vo.
- the diagram in FIG. 3e represents the state of the second logic output S2 as well as the state of the supply of the coil 72.
- the current Ib in the coil 72 is substantially zero, corresponding to a state 0 in the diagram of FIG. 3e and at time t1, the current Ib passes through the coil 70, corresponding to a state 1.
- the coil 72 being supplied, produces the closure of the contact 70 after a delay T1, corresponding to a response time to the closure of the contact 70.
- this delay T1 is of the order of 5 ms for the serial relays.
- the contact is closed at time t2 equal t1 + T1.
- the closure of contact 70 at time t2 is represented by the diagram in FIG. 3g in which an open contact corresponds to a state 0 and a closed contact to a state 1.
- the contact 70 or time t2 is closed while the current in the electrical circuit is already established (at time t1) through the triac 80, therefore without arc for the contact 70.
- the microcontroller maintains control of the thyristor gate current Ig (first logic output S1 at state 1) for a safety delay (a few milliseconds) until a time t3 at which the first logic output S1 goes from state 1 to state 0 interrupting the trigger current Ig of the triac 80 and thus preventing any tripping of the triac 80, in the event of a permanent voltage between its terminals such as for example a residual voltage due to the smearing of the contact 70.
- the triac 80 conduction command was carried out for a first period of time starting before the contact 70 was closed, at time t1 and ending after its closure, or time t3.
- the diagram in FIG. 3b shows the variations in the voltage V across the terminals of the triac 80 in parallel with the contact 72, during this first closing phase of the hybrid relay 60.
- the microcontroller 100 brings the first logic output S1 to state 1 at time t4, which causes the current generator 112 to apply the current Ig to the trigger of the triac 80.
- the triac 80 remains defused by the fact that 'It is short-circuited by contact 70 still closed.
- the microcontroller 100 switches the second logic output S2 to state 0 interrupting the supply of the coil 72 and after a delay T2 linked to the response time at the opening of the contact 70, of the order 10 ms for a serial relay, the latter opens at time t5 equal to t4 + T2, initiating the triac 80 in the on state (Figure 3f).
- the current in the first channel V1 passes at time t5 through the triac 80 which has started, eliminating almost all of the arc at the terminals of contact 70.
- the microcontroller maintains control of the trigger current Ig of the triac 80 (first output S1 at state 1) for a new safety delay (a few milliseconds) until a time t6 at which the first logic output S1 goes from state 1 in state 0 interrupting the trigger current Ig of the triac 80.
- the triac 80 is defused by the passage of about 0 volts of the voltage V across its terminals.
- the triac 80 thereafter remains in the blocked state, no longer being controlled and putting the hybrid relay in the open state as it was before time tO.
- the command to activate the triac 80 was carried out for a second period of time starting before the opening of the contact 70, or time t4 and ending after its opening or time t6.
- the diagram in FIG. 3b shows the voltage V across the triac during this second phase of opening the hybrid relay 60.
- the contact 70 short-circuits the triac 80 the voltage V is equal to the residual voltage u2 of the contact 70.
- the voltage V is equal to the residual voltage u1 at the terminals of the triac, ie approximately 1.5 volts.
- the voltage V is substantially equal to the voltage Ue of the electrical circuit.
- the microcontroller 100 provides, using the detection circuit 102, additional security functionality of the hybrid relay.
- microcontroller considers this pulse and switches the first logic output S1 to state 1 for a short instant of time during which the contact is open, applying during this same short instant the current Ig in the trigger of the triac 80 and setting the l passing state of the triac, which has the advantage of eliminating the arc occurring on the contact 70. This additional safety ensures better reliability and a longer service life of the relay when used in a disturbed environment.
- the hybrid power relay 60 is equipped with light-emitting diodes indicating its state.
- the light-emitting diode D8 (green) indicates when the hybrid relay is closed.
- a red light-emitting diode D10 controlled by a third logic output S3 of the microcontroller 100 indicates an abnormal operation of the hybrid relay, the abnormal operation information is transmitted outside the relay by a control terminal OUT galvanically isolated from the live elements Ue of the hybrid relay by a third photocoupler U3.
- hybrid power relay 60 is not limiting and other simpler versions can be produced, using for example exclusively discrete components or wired logic, a microcontroller system allowing to take into account many parameters related to the relay hybrid or the type of electrical circuit in which it is inserted.
- the mechanical displacement contact and the coil are contained in a sealed housing filled with a liquid with high dielectric power.
- the contact and the coil immersed in the liquid has the advantage of reducing the acoustic switching noise, considerably increasing the number of operations in charge of the hybrid relay passing on average from 100,000 to 10 million operations and increasing performance of the relay in terms of breaking capacity.
Landscapes
- Relay Circuits (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Ac Motors In General (AREA)
- Electronic Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9716344 | 1997-12-23 | ||
FR9716344A FR2772975B1 (en) | 1997-12-23 | 1997-12-23 | HYBRID POWER RELAY |
PCT/FR1998/002851 WO1999034382A1 (en) | 1997-12-23 | 1998-12-23 | Hybrid power relay |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1042773A1 true EP1042773A1 (en) | 2000-10-11 |
EP1042773B1 EP1042773B1 (en) | 2002-03-20 |
Family
ID=9514990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98963611A Revoked EP1042773B1 (en) | 1997-12-23 | 1998-12-23 | Hybrid power relay |
Country Status (7)
Country | Link |
---|---|
US (1) | US6347024B1 (en) |
EP (1) | EP1042773B1 (en) |
AT (1) | ATE214840T1 (en) |
CA (1) | CA2316285A1 (en) |
DE (1) | DE69804353T2 (en) |
FR (1) | FR2772975B1 (en) |
WO (1) | WO1999034382A1 (en) |
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DE102013114259A1 (en) * | 2013-12-17 | 2015-06-18 | Eaton Electrical Ip Gmbh & Co. Kg | Switching device for guiding and separating electric currents |
US9742185B2 (en) | 2015-04-28 | 2017-08-22 | General Electric Company | DC circuit breaker and method of use |
WO2020035171A1 (en) * | 2018-08-15 | 2020-02-20 | Tiko Energy Solutions Ag | System and method for quick and low noise relay switching operation |
JP7096778B2 (en) * | 2019-02-08 | 2022-07-06 | 株式会社Subaru | Switch system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4074333A (en) * | 1976-07-15 | 1978-02-14 | Shinko Electric Company, Ltd. | A.c. relay system |
FR2525386A1 (en) * | 1982-04-15 | 1983-10-21 | Anectron | Controlled switch circuit for resistive and inductive loads - has parallel connected semiconductor switch and electromagnetic relay switching in sequence across load, and zero-crossing detector |
JP3178236B2 (en) * | 1993-11-26 | 2001-06-18 | 富士電機株式会社 | Hybrid switch |
US5790354A (en) * | 1997-03-26 | 1998-08-04 | Watlow Electric Manufacturing Company | Hybrid power switching device |
-
1997
- 1997-12-23 FR FR9716344A patent/FR2772975B1/en not_active Expired - Lifetime
-
1998
- 1998-12-23 AT AT98963611T patent/ATE214840T1/en not_active IP Right Cessation
- 1998-12-23 EP EP98963611A patent/EP1042773B1/en not_active Revoked
- 1998-12-23 CA CA002316285A patent/CA2316285A1/en not_active Abandoned
- 1998-12-23 DE DE69804353T patent/DE69804353T2/en not_active Revoked
- 1998-12-23 US US09/581,225 patent/US6347024B1/en not_active Expired - Lifetime
- 1998-12-23 WO PCT/FR1998/002851 patent/WO1999034382A1/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9934382A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6347024B1 (en) | 2002-02-12 |
WO1999034382A1 (en) | 1999-07-08 |
DE69804353T2 (en) | 2002-10-31 |
CA2316285A1 (en) | 1999-07-08 |
FR2772975B1 (en) | 2003-01-31 |
FR2772975A1 (en) | 1999-06-25 |
DE69804353D1 (en) | 2002-04-25 |
EP1042773B1 (en) | 2002-03-20 |
ATE214840T1 (en) | 2002-04-15 |
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