CN203839955U - Novel multifunctional code switch with communication module - Google Patents
Novel multifunctional code switch with communication module Download PDFInfo
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- CN203839955U CN203839955U CN201420011376.8U CN201420011376U CN203839955U CN 203839955 U CN203839955 U CN 203839955U CN 201420011376 U CN201420011376 U CN 201420011376U CN 203839955 U CN203839955 U CN 203839955U
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- magnetic latching
- latching relay
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- control mcu
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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Abstract
The utility model discloses a novel multifunctional code switch with a communication module. The novel multifunctional code switch comprises a main controller MCU, magnetic latching relays, standby magnetic latching relays, a working power supply module, a data memory, a 485 communication module, an AC acquisition module, current transformers, voltage transformers and switch drive circuits. The novel multifunctional code switch is characterized in that the working power supply module, the data memory, and the 485 communication module are respectively connected with the main controller MCU; the main controller MCU is connected with the magnetic latching relays through one switch drive circuit; the main controller MCU is connected with the standby magnetic latching relays through the other switch drive circuit; the main controller MCU is connected with the current transformers and the voltage transformers through the AC acquisition module; and there are 1-n magnetic latching relays, 1-n standby magnetic latching relays, 1-n current transformers and 1-n voltage transformers. Data communication and information exchanges with external-connection control equipment can be facilitated through the 485 communication module.
Description
Technical field
The utility model relates to a kind of switch, relates in particular to a kind of novel multifunctional encoder switch with communication module.
Background technology
In power industry mesolow the complete sets of equipment, the fling-cut switch of capacitor is combination switch, because combination switch adopts controllable silicon and magnetic latching relay and connects, realize voltage zero-cross conducting and current over-zero and cut off, make combination switch there is reverse-blocking tetrode thyristor operating passing zero in the moment switching on and off.Its implementation is: when input, be in the first zero cross fired of voltage zero-cross moment controllable silicon, and then by magnetic latching relay adhesive conducting; And when excision is first magnetic latching relay to be disconnected, controllable silicon delay zero-crossing disconnects, thereby realizes current over-zero excision.Therefore electric property and the technological requirement of combination switch to magnetic latching relay is quite high.And existing magnetic latching relay on the market also fails to reach corresponding requirement, because erosion phenomenon is inhaled in the low easy appearance of magnetic latching relay contact capacity, the mechanical structure of magnetic latching relay has determined the unsteadiness of its action simultaneously; Controllable silicon is to belong to power type semiconductor element, and the electric current and voltage conditional request harshness during to use occurs that once electric current and voltage larger fluctuation causes controllable silicon to damage or burns phenomenon; Therefore cause existing combination switch on the market also to exist the inadequate natural endowment of application aspect.The utility model is the up-to-date scientific and technological achievement of one of meticulously developing in the inadequate natural endowment existing aspect low-voltage complete application of installation for controllable silicon and magnetic latching relay.
Summary of the invention
The purpose of this utility model is, for the problem of above-mentioned discovery, a kind of novel multifunctional encoder switch with communication module is provided, realize with single-chip microcomputer and calculated fast operating passing zero moment point, guarantee that magnetic latching relay carrys out the operating passing zero of control capacitor, replace traditional employing controllable silicon and magnetic latching relay and connect as operating passing zero, having solved controllable silicon and easily occurred the phenomenon of damaging and burning.
The utility model can also be monitored the input current value of power capacitor, and the utilance of capacitor is guaranteed in the capacitance loss of real-time report capacitor.Also can Real-time Collection capacitor temperature value when operation, the in the situation that of temperature over-range, exit by force electric capacity and drop into; Again can the current value of Real-time Collection in the time that electric capacity drops into, in the time that current value exceeds 2 times of electric capacity rated current, exit by force electric capacity and drop into; Can also be in the time of excision electric capacity, the current value of each switch passage of Real-Time Monitoring, judging under the malfunction of magnetic latching relay adhesive, disconnect by force magnetic latching relay for subsequent use, avoid electric capacity for a long time in input state, that one has high security, the novel multifunctional encoder switch with communication module of high reliability.
The purpose of this utility model can be achieved like this, the described novel multifunctional encoder switch with communication module, comprise main control MCU, magnetic latching relay, magnetic latching relay for subsequent use, working power module, data storage, 485 communication modules, exchange acquisition module, current transformer, voltage transformer and switch driving circuit, its design feature is described working power module, data storage is connected with main control MCU respectively with 485 communication modules, main control MCU connects magnetic latching relay by a switch driving circuit, main control MCU connects magnetic latching relay for subsequent use by another switch driving circuit, main control MCU is connected with current transformer and voltage transformer respectively by exchanging acquisition module, described magnetic latching relay has 1 ~ n, and described magnetic latching relay for subsequent use has 1 ~ n, and described current transformer has 1 ~ n, and described voltage transformer has 1 ~ n.
Specifically, the utility model has comprised multiple (1 ~ n) magnetic latching relay, multiple (1 ~ n) magnetic latching relay for subsequent use, switch driving circuit, working power module, data storage, temperature collect module, LED light display module, 485 communication modules, interchange acquisition module, multiple (1 ~ n) current transformer, multiple (1 ~ n) voltage transformer and switch driving circuits.Described multiple (1 ~ n) magnetic latching relay is the fling-cut switch as capacitor under drive circuit control, described multiple (1 ~ n) magnetic latching relay for subsequent use is to use as protection switch, in the time that electric capacity excises, the current value of each switch passage of Real-Time Monitoring, judging under the malfunction of the magnetic latching relay adhesive using for switching, disconnect by force magnetic latching relay for subsequent use, avoid electric capacity for a long time in input state, protection equipment reliability service, described working power module is that alternating current 220V is inputted as power supply, converts multi-channel DC voltage to supply with a circuit module use through power module, described data storage be for to various in real time and history data store, described temperature collect module is the temperature value that gathers capacitor self, the in the situation that of temperature over-range, exits by force electric capacity and drops into, whether described LED light display module is to comprise working power and switching signal lamp, can observe the novel multifunctional encoder switch with communication module by indicator light and normally work and capacitor switching situation, 485 described communication modules be for data communication and the information exchange of external control appliance, described interchange acquisition module comprises electric energy computation chip and signal processing circuit, electric energy computation chip adopts high accurate A/D chip, as electric current and voltage, metering is used high accurate A/D chip, the effect of signal processing circuit is that the electric current and voltage information of input is nursed one's health into the signal that can do accurate analog digital conversion and calculate in high accurate A/D chip, send result timing to main control MCU again, mainly to gather electric current, phase voltage, line voltage, condenser voltage, electric capacity drops into the data parameters such as electric current and is used for judging that voltage zero-cross drops into and current over-zero disconnects and condenser loss calculation of parameter, described multiple (1 ~ n) current transformer is the electric current when gathering electric capacity and drop into, in the time that current value exceeds 2 times of electric capacity rated current, exits by force electric capacity and drops into, the electric current simultaneously dropping into also can be used as a parameter of calculable capacitor loss, described multiple (1 ~ n) voltage transformer is to can be used as for gathering the parameters such as phase voltage, line voltage, condenser voltage the foundation that judges voltage zero-cross and calculable capacitor loss.
advantage of the present utility model:
When the utility model moves in normal power-up, main control MCU is in the time controlling first magnetic latching relay and carry out switching action, main control MCU can record accurately magnetic latching relay and send the real closed or moment point that disconnects of the moment point of closure or open command and magnetic latching relay, and calculates magnetic latching relay in closed journey time when disconnecting.Because the switching journey time of each magnetic latching relay is different, adopt computational methods of the present utility model, can be according to the switching journey time of different magnetic latching relays, main control MCU is calculated and is sent in advance driving signal, so that magnetic latching relay can be at correct moment regular event.
The novel multifunctional encoder switch with communication module described in the utility model, can pass through the temperature value of temperature collect module Real-time Collection capacitor, in the time that the temperature value gathering exceeds preset parameter (parameter can arrange according to actual motion environment), magnetic latching relay for subsequent use in the novel multifunctional encoder switch with communication module described in the utility model disconnects by force, prevent capacitor excess Temperature, the fault such as cause capacitor to occur explosion or to burn.
The novel multifunctional encoder switch with communication module described in the utility model; can be by multiple (1 ~ n) current transformer and current values when exchanging acquisition module Real-time Collection capacitor and dropping into; in the time that current value exceeds 2 times of electric capacity rated current; magnetic latching relay for subsequent use in the novel multifunctional encoder switch with communication module described in the utility model disconnects by force; exit by force electric capacity and drop into, protection equipment reliability service.
The novel multifunctional encoder switch with communication module described in the utility model, can be in the time of excision electric capacity, the current value of each switch passage of Real-Time Monitoring, judging under the malfunction of magnetic latching relay adhesive, magnetic latching relay for subsequent use in the novel multifunctional encoder switch with communication module described in the utility model disconnects by force, avoids electric capacity for a long time in input state.
Brief description of the drawings
Fig. 1 is the structure chart of the novel multifunctional encoder switch with communication module of the utility model embodiment.
Fig. 1-1st, the schematic block circuit diagram that 485 communication modules are not installed in Fig. 1.
Fig. 1-2 is the schematic block circuit diagram that temperature collect module is not installed in Fig. 1.
Fig. 1-3rd, the schematic block circuit diagram that magnetic latching relay for subsequent use is not installed in Fig. 1.
Fig. 2 is voltage zero-cross closure and the travel-time curve figure of the novel multifunctional encoder switch with communication module of the utility model embodiment.
Fig. 3 is that the current over-zero of the novel multifunctional encoder switch with communication module of the utility model embodiment disconnects and travel-time curve figure.
Fig. 4 is the operation principle block diagram of the novel multifunctional encoder switch with communication module of the utility model embodiment.
Fig. 5 is the protective circuit operation principle block diagram of the novel multifunctional encoder switch with communication module of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, operation principle and the course of work of the novel multifunctional encoder switch with communication module described in the utility model are elaborated:
As shown in Figure 1, be the structure chart of the novel multifunctional encoder switch with communication module of embodiment described in the utility model.Comprise main control MCU, multiple (can be 1 ~ n) magnetic latching relay, multiple (can be 1 ~ n) magnetic latching relay for subsequent use, working power module, data storage, temperature collect module, LED light display module, 485 communication modules, exchange acquisition module, multiple (can be 1 ~ n) current transformer, multiple (can be 1 ~ n) voltage transformer, switch driving circuit.N described in the utility model is natural number.Described working power module, data storage, temperature collect module, LED light display module and 485 communication modules are connected with main control MCU respectively, main control MCU connects magnetic latching relay by a switch driving circuit, main control MCU connects magnetic latching relay for subsequent use by another switch driving circuit, and main control MCU is connected with current transformer and voltage transformer respectively by exchanging acquisition module.When the utility model application, as shown in Figure 5, magnetic latching relay for subsequent use is received A line, B line, C line, N line on the one hand, is connected on the other hand with magnetic latching relay, and magnetic latching relay is received on power capacitor.The following capacitor of the utility model refers to " power capacitor ".
1) main control MCU: adopt existing commercially available prod, complete transmission and drive magnetic latching relay to carry out switching action with controlling and send control signal, these calibration analytes and calculation procedure are that those skilled in the art can realize.
2) multiple (1 ~ n) magnetic latching relays: adopt existing commercially available prod, as the switching element of capacitor in power industry mesolow the complete sets of equipment.
3) multiple (1 ~ n) magnetic latching relays for subsequent use: adopt existing commercially available prod, serve as a kind of switch element, judging under the malfunction of magnetic latching relay adhesive, magnetic latching relay for subsequent use in the novel multifunctional encoder switch with communication module described in the utility model disconnects by force, those skilled in the art avoid the electric capacity for a long time in input state, for can realize.
4) working power module: alternating current 220V is inputted as power supply, convert multi-channel DC voltage to through power module and supply with a circuit module use, wherein main control MCU, data storage, 485 communication module working powers are 3.3V direct voltage, exchanging acquisition module operating voltage is 5V, and fling-cut switch control module operating voltage is 12V.These working power modules are that those skilled in the art can realize.
5) data storage: this module to various in real time and history data store, can adopt all kinds of storage mediums, be prior art.
6) temperature collect module: adopt commercially available pt100 platinum resistance, external be directly placed in capacitor surface fast response temperature change, described pt100 platinum resistance is existing commercially available prod.
7) LED light display module: comprise working power and switching signal lamp, operating state and capacitor switching state that the content that indicator light shows comprises the novel multifunctional encoder switch with communication module described in the utility model.
8) 485 communication modules: this module is that external control appliance is carried out to data communication and information exchange are prior art.
9) exchange acquisition module: comprise electric energy computation chip and signal processing circuit, electric energy computation chip adopts high accurate A/D chip, as electric current and voltage, metering is used high accurate A/D chip, the effect of signal processing circuit is that the electric current and voltage information of input is nursed one's health into the signal that can do accurate analog digital conversion and calculate in high accurate A/D chip, those skilled in the art result timing sent to main control MCU, for can realize again.
10) multiple (1 ~ n) current transformers: adopt existing commercially available prod, the electric current while input for gathering electric capacity, line current, phase current etc.
11) multiple (1 ~ n) voltage transformers: adopt existing commercially available prod, can be used as for gathering the parameters such as phase voltage, line voltage, condenser voltage the foundation that judges voltage zero-cross and calculable capacitor loss.
12) switch driving circuit: this module is general switching circuit, in the time that main control MCU is sent control signal instruction, provide the direct voltage of 12V to supply with switching circuit through working power module and use, make switching circuit closure, these switching circuits are that those skilled in the art can realize.
As Figure 1-1, be the schematic block circuit diagram that 485 communication modules are not installed in Fig. 1.The utility model can not installed 485 communication modules, and now structure of the present utility model does not just have 485 communication module functions, but the utility model can also be realized the purpose of this utility model, just can not pass through transmitted data on network.
As shown in Figure 1-2, be the schematic block circuit diagram that temperature collect module is not installed in Fig. 1.The utility model can not installed temperature collect module, now structure of the present utility model does not just have temperature collect module function, but the utility model can also be realized the purpose of this utility model, just do not there is temperature alarming function and prevent capacitor excess Temperature, the fault such as occur explosion or burn.
As Figure 1-3, be the schematic block circuit diagram that magnetic latching relay for subsequent use is not installed in Fig. 1.The utility model can uneasy equipment magnetic latching relay, now structure of the present utility model does not just have magnetic latching relay function for subsequent use, but the utility model can also be realized the purpose of this utility model, just do not have and disconnect by force multiple (1 ~ n) magnetic latching relays for subsequent use, prevent capacitor excess Temperature, the function of the fault such as occur explosion or burn.
As shown in Figure 2 be voltage zero-cross closure and travel-time curve figure, the wherein t of the described in the utility model novel multifunctional encoder switch with communication module of the utility model embodiment
1the moment point of the close command of sending first for main control MCU, t
2for drive circuit of magnetic latching relay receives close command and the real closed moment point of magnetic latching relay, △ t
1for the journey time (ms of unit) of magnetic latching relay closure, Ta is the moment point of the voltage zero-cross that detects first, because the cycle of power frequency AC is 20ms, in a power frequency period, supply voltage zero passage there will be the zero passage moment 2 times, therefore Ta+10 is the moment point (ms of unit) of the voltage zero-cross that detects for the second time, T
1for voltage zero-cross moment point being detected for the second time, main control MCU is sent the moment point of the close command of magnetic latching relay.
As shown in Figure 3 be the utility model embodiment the described in the utility model novel multifunctional encoder switch with communication module current over-zero disconnect and travel-time curve figure, wherein t
3the moment point of the open command of sending first for main control MCU, t
4for drive circuit of magnetic latching relay receives open command and the real moment point disconnecting of magnetic latching relay, △ t
2for the journey time (ms of unit) of magnetic latching relay disconnection, Tb is the moment point of the current over-zero that detects first, because the cycle of power frequency AC is 20ms, in a power frequency period, source current zero passage there will be the zero passage moment 2 times, Tb+10 is the moment point (ms of unit) of the current over-zero that detects for the second time, T
2when current over-zero being detected for the second time, main control MCU is sent the moment point of the open command of magnetic latching relay.
Shown in Fig. 1, Fig. 2, Fig. 3, be △ t in order to calculate the journey time of magnetic latching relay closure
1, magnetic latching relay disconnect journey time be △ t
2, main control MCU sends the close command moment point T of magnetic latching relay
1and main control MCU is sent the moment point T of the open command of magnetic latching relay
2.Control close command driving switch drive circuit closed magnetic latching relay if main control MCU is sent, in this process, data storage storage main control MCU is sent the moment point t that controls close command
1, data storage storage magnetic latching relay closing moment point t
2.When data storage has been stored t
1and t
2after, the journey time of the magnetic latching relay closure that main control MCU calculates is △ t
1=t
2-t
1, the journey time △ t of the magnetic latching relay closure that now data storage continuation storage main control MCU calculates
1.Detect for the first time after voltage zero-cross moment point Ta when exchanging acquisition module, main control MCU starts to calculate the close command moment point T that sends magnetic latching relay
1=Ta+10-△ t
1, main control MCU is controlled at T
1the close command of sending magnetic latching relay when moment drives electrical apparatus driving circuit to carry out closed action, guarantees that magnetic latching relay is at this moment point operating passing zero of Ta+10.Data storage storage of constant △ t
1with variable T
1as the calculating parameter of closed magnetic latching relay, so that the novel multifunctional encoder switch with communication module described in the utility model uses while carrying out closed magnetic latching relay.Control open command driving switch drive circuit disconnection magnetic latching relay if main control MCU is sent, in this process, data storage storage main control MCU is sent the moment point t that controls open command
3, data storage storage magnetic latching relay disconnects moment point t
4.When data storage has been stored t
3and t
4after, the journey time that the magnetic latching relay that main control MCU calculates disconnects is △ t
2=t
4-t
3, the journey time △ t that the magnetic latching relay that now data storage continuation storage main control MCU calculates disconnects
2.Detect for the first time after current over-zero moment point Tb when exchanging acquisition module, main control MCU starts to calculate the open command moment point T that sends magnetic latching relay
2=Tb+10-△ t
2, main control MCU is controlled at T
2the open command of sending magnetic latching relay when moment drives electrical apparatus driving circuit to disconnect action, guarantees that magnetic latching relay is at this moment point operating passing zero of Tb+10.Data storage storage of constant △ t
2with variable T
2as disconnecting the calculating parameter of magnetic latching relay, so that the novel multifunctional encoder switch with communication module described in the utility model uses while disconnecting magnetic latching relay.
In the time that the interchange acquisition module in the novel multifunctional encoder switch with communication module described in the utility model detects voltage over zero moment Ta and needs closed magnetic latching relay, the constant △ t of main control MCU calling data memory stores
1with variable T
1as the calculating parameter of closed magnetic latching relay, calculating the moment point now detecting when voltage zero-cross drops into is T
1=Ta+10-△ t
1, main control MCU will be controlled at T
1the close command of sending magnetic latching relay when moment drives electrical apparatus driving circuit to carry out closed action.In the time that interchange acquisition module detects current zero-crossing point moment Tb and need to disconnect magnetic latching relay, the constant △ t of main control MCU calling data memory stores
2with variable T
2as the calculating parameter that disconnects magnetic latching relay, calculating the moment point now detecting when voltage zero-cross disconnects is T
2=Tb+10-△ t
2.Main control MCU will be controlled at T
2the open command of sending magnetic latching relay when moment drives electrical apparatus driving circuit to disconnect action.
As shown in Figure 4, be the operation principle block diagram of the described in the utility model novel multifunctional encoder switch with communication module of embodiment described in the utility model.Wherein A line, B line, C line, N line are connected to novel multifunctional encoder switch A, B, C, N port with communication module described in the utility model by copper conductor respectively, working power module is inputted the alternating current 220V of collection as power supply, convert multi-channel DC voltage to through power module and supply with a circuit module use, wherein main control MCU, data storage, 485 communication module working powers are 3.3V direct voltage, exchanging acquisition module working power is 5V direct voltage, and fling-cut switch control module working power is 12V direct voltage.
As shown in Figure 5; it is the protective circuit operation principle block diagram of the described in the utility model novel multifunctional encoder switch with communication module of embodiment described in the utility model; for the reliable and secure operation of guarantee equipment; in order to strengthen the useful life of power capacitor, that the novel multifunctional encoder switch with communication module described in the utility model has increased is multiple (1 ~ n) magnetic latching relay for subsequent use uses as protection switch.In the time that the novel multifunctional encoder switch with communication module described in the utility model is normally worked, multiple (1 ~ n) magnetic latching relay for subsequent use is in normally off, and the switching of capacitor is (1 ~ n) the break-make realizations of magnetic latching relay multiple by controlling.In the time that the temperature value of temperature collect module Real-time Collection capacitor exceeds preset parameter (parameter can arrange according to actual motion environment), main control MCU analysis is sent logic control signal by I/O mouth more afterwards, through switch driving circuit be converted to have drive multiple (1 ~ n) in the control signal of magnetic latching relay Motor ability for subsequent use, disconnect by force multiple (1 ~ n) magnetic latching relays for subsequent use, prevent capacitor excess Temperature, the fault such as occur explosion or burn.When exchange in acquisition module multiple (1 ~ when current value exceeds 2 times of capacitor rated current when n) capacitor of current transformer Real-time Collection drops into; main control MCU analysis is sent logic control signal by I/O mouth more afterwards; through switch driving circuit be converted to have drive multiple (1 ~ n) in the control signal of magnetic latching relay Motor ability for subsequent use; disconnect by force that multiple (1 ~ n) magnetic latching relay for subsequent use is protected multiple (1 ~ n) action messages of magnetic latching relay.In the time of equipment excision electric capacity, exchange the multiple (1 ~ n) current values of each switch passage of current transformer Real-Time Monitoring in acquisition module, if while also there is the current value while input, judge multiple (1 ~ there is the fault of adhesive in magnetic latching relay n), now main control MCU is sent logic control signal by I/O mouth, through switch driving circuit be converted to have drive multiple (1 ~ n) in the control signal of magnetic latching relay Motor ability for subsequent use, disconnect by force multiple (1 ~ n) magnetic latching relay for subsequent use avoids capacitor for a long time in input state.Therefore multiple by increasing (1 ~ n) magnetic latching relay for subsequent use is used as protection switch, can improve fail safe, the reliability of the novel multifunctional encoder switch operation with communication module described in the utility model.
In conjunction with Fig. 4, shown in Fig. 5, when A line, B line, C line, when N line and capacitor access respectively on the corresponding binding post of the novel multifunctional encoder switch with communication module described in the utility model, the interchange acquisition module Real-time Collection line voltage distribution in the novel multifunctional encoder switch with communication module described in the utility model, electric current and capacitor service data, by sending into electric energy computation chip after its signal processing circuit conditioning, main control MCU is done accurate analog digital conversion and calculates this signal by SPI communication bus control electric energy computation chip (data acquisition module chip block), to obtain phase voltage, line voltage, capacitance voltage, drop into the information such as electric current, then pass through SPI communication bus by phase voltage, line voltage, capacitance voltage, drop into the information timings such as electric current and send main control MCU to, main control MCU is sent logic control signal calculating suitable Switching Strategy by I/O mouth, be converted to and there is the control signal that drives magnetic latching relay Motor ability through switch driving circuit, drive the magnetic latching relay break-make of respective channel.Because the journey time of the closed and disconnected of each magnetic latching relay is different, in order to ensure that magnetic latching relay is accurate in the action moment point of contact, the novel multifunctional encoder switch with communication module described in the utility model will accurately calculate disconnection and the closing stroke time of each magnetic latching relay by main control MCU, and is stored in data storage.In the time that the interchange acquisition module of the novel multifunctional encoder switch with communication module described in the utility model detects voltage over zero moment Ta and needs closed magnetic latching relay, the constant △ t of main control MCU calling data memory stores
1with variable T
1as the calculating parameter of closed magnetic latching relay, calculating the moment point now detecting when voltage zero-cross drops into is T
1=Ta+10-△ t
1, main control MCU will be controlled at T
1the close command switch driving circuit that sends magnetic latching relay when moment carries out closed action.In the time that interchange acquisition module detects current zero-crossing point moment Tb and need to disconnect magnetic latching relay, the constant △ t of main control MCU calling data memory stores
2with variable T
2as the calculating parameter that disconnects magnetic latching relay, calculating the moment point now detecting when voltage zero-cross disconnects is T
2=Tb+10-△ t
2.Main control MCU will be controlled at T
2the open command switch driving circuit that sends magnetic latching relay when moment disconnects action.Main control MCU will be sent control signal by I/O mouth according to the actual situation closed and that disconnect of magnetic latching relay simultaneously, through the show state of LED light display module circuit control LED light, indicate operating state and the capacitor switching state of the novel multifunctional encoder switch with communication module described in the utility model.The interchange acquisition module of the novel multifunctional encoder switch with communication module described in the utility model has connected multiple (1 ~ n) current transformer and multiple (1 ~ n) voltage transformers, phase voltage, line voltage that can Real-time Collection circuit, the information such as the capacitance voltage of capacitor and switching electric current feed back to main control MCU, by these information that gather, that can think calculates the loss after capacitor actual motion.If be U through the capacitance voltage that exchanges acquisition module collection, line voltage is U
aB, U
bC, U
cA, capacitor switching electric current I
aB, I
bC, I
cA, can calculate the input capacity Q of electric capacity reality
c=U
aB× I
aB+ U
bC× I
bC+ U
cA× I
cA.According to capacitor rated capacity, Qe can know, input amount Q when loss does not appear in capacitor
c1=Qe × (U/Ue)
2, (wherein U is the capacitance voltage gathering, and Ue is the rated voltage of power capacitor), can calculate loss factor β=Q like this
c/ Q
c1.Due in the time that condenser loss value reaches 1/3, the utilance of capacitor reduces, in the complete sets of equipment, utilize capacitor effect by way of compensation to decline, in the time that condenser loss value reaches 2/3, the output current of capacitor strengthens, the caloric value of capacitor is high, and potential safety hazard easily appears in capacitor, therefore has innovation and creation meaning at the loss factor β of Detection capacitance device.
Claims (1)
1. the novel multifunctional encoder switch with communication module, comprise main control MCU, magnetic latching relay, magnetic latching relay for subsequent use, working power module, data storage, 485 communication modules, exchange acquisition module, current transformer, voltage transformer and switch driving circuit, described main control MCU completes transmission and controls, and send control signal driving magnetic latching relay and carry out switching action, it is characterized in that, described working power module, data storage is connected with main control MCU respectively with 485 communication modules, main control MCU connects magnetic latching relay by a switch driving circuit, main control MCU connects magnetic latching relay for subsequent use by another switch driving circuit, main control MCU is connected with current transformer and voltage transformer respectively by exchanging acquisition module, described magnetic latching relay has 1 ~ n, and described magnetic latching relay for subsequent use has 1 ~ n, and described current transformer has 1 ~ n, and described voltage transformer has 1 ~ n.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011376.8U CN203839955U (en) | 2014-01-08 | 2014-01-08 | Novel multifunctional code switch with communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011376.8U CN203839955U (en) | 2014-01-08 | 2014-01-08 | Novel multifunctional code switch with communication module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203839955U true CN203839955U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011376.8U Expired - Fee Related CN203839955U (en) | 2014-01-08 | 2014-01-08 | Novel multifunctional code switch with communication module |
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| CN (1) | CN203839955U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701141A (en) * | 2014-01-08 | 2014-04-02 | 福建阳谷智能技术有限公司 | Novel multifunctional coding switch |
| CN107332439A (en) * | 2017-07-26 | 2017-11-07 | 国网河南省电力公司洛阳供电公司 | A kind of arc suppression coil debugging capacitance current generator control module |
| CN109347073A (en) * | 2018-10-12 | 2019-02-15 | 无锡圣普电力科技有限公司 | A kind of intelligence is operated a switch contactor and its control method |
| CN114039336A (en) * | 2021-10-21 | 2022-02-11 | 贵州电网有限责任公司 | Integrated relay, control method and relay protection device |
-
2014
- 2014-01-08 CN CN201420011376.8U patent/CN203839955U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701141A (en) * | 2014-01-08 | 2014-04-02 | 福建阳谷智能技术有限公司 | Novel multifunctional coding switch |
| CN103701141B (en) * | 2014-01-08 | 2016-03-16 | 福建阳谷智能技术有限公司 | Novel multifunctional encoder switch |
| CN107332439A (en) * | 2017-07-26 | 2017-11-07 | 国网河南省电力公司洛阳供电公司 | A kind of arc suppression coil debugging capacitance current generator control module |
| CN109347073A (en) * | 2018-10-12 | 2019-02-15 | 无锡圣普电力科技有限公司 | A kind of intelligence is operated a switch contactor and its control method |
| CN114039336A (en) * | 2021-10-21 | 2022-02-11 | 贵州电网有限责任公司 | Integrated relay, control method and relay protection device |
| CN114039336B (en) * | 2021-10-21 | 2023-09-19 | 贵州电网有限责任公司 | Integrated relay, control method and relay protection device |
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