CN203502556U - Simulation circuit breaker testing device for relay protection - Google Patents
Simulation circuit breaker testing device for relay protection Download PDFInfo
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- CN203502556U CN203502556U CN201320580576.0U CN201320580576U CN203502556U CN 203502556 U CN203502556 U CN 203502556U CN 201320580576 U CN201320580576 U CN 201320580576U CN 203502556 U CN203502556 U CN 203502556U
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Abstract
The utility model discloses a simulation circuit breaker testing device for relay protection. The testing device comprises an acquisition module, a processor, an execution module, a display module, a setting module, an alarm module and a power supply module. The processor, under the control of an embedded program, receives and processes a relay protection device command input by the acquisition module, instructs the execution module to simulate the actual opening and closing operation of a circuit breaker, and displays relative state changes. The setting module, according to the set opening setting current and the closing setting current, adjusts the command identification reference voltage in the acquisition module, and stores the set opening time and the closing time to the processor. The display module displays the states of the simulation circuit. The simulation circuit breaker testing device can realize the single-phase tripping, closing and three-phase tripping and closing tests of the relay protection equipment, and an anti-trip test of a circuit breaker operation box. The instrument can further reliably simulate the relative operation condition of the relay protection equipment by an on-site circuit breaker an perform debugging on the protection equipment.
Description
Technical field
The utility model relates to a kind of mimic-disconnecting switch proving installation, relates in particular to a kind of used for relay protection mimic-disconnecting switch proving installation.
Background technology
In the prerun of substation relay protection device, when transformation, usually breaker apparatus does not possess transmission condition and cannot carry out acting characteristic debugging and the transmission test work of whole group of loop of protective device due to one time.Breaker apparatus possess transmission condition need to be after maintenance, test etc. many cover process flows, in the middle of this, also do not comprise and processing the time that switch temporary defect etc. consumes.Deng a breaker apparatus, possess after transmission condition, leave for and protect the time of carrying out whole group of transmission test of switch usually to remain little.Therefore, often can omit owing to trying to meet the deadline for the project protective value test, the job steps such as loop total group test work, leave potential safety hazard.But the maintenance, the test period that reduce by a switchgear are unrealistic again.Even if having plenty of time, also can wait for because of stopping work, affect work efficiency; Because test needs transmission multiple switching to protection equipment performance, increase the probability that isolating switch breaks down simultaneously, on the security of primary equipment, also can cause impact to a certain degree.
In addition, many protective relaying device training bases are only furnished with single device, there is no actual isolating switch, and correctly analog field device can running status, carries out protective value test, loop total group test work.Therefore, training base can simulate in the urgent need to what be applicable to that protective device uses the instrument and equipment of realizing isolating switch performance, thereby reaches the object of better training and teaching.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of mimic-disconnecting switch proving installation of used for relay protection, can assist the acting characteristic debugging and whole group of the loop transmission test that carry out protective device.
Technical solution adopted in the utility model is:
A used for relay protection mimic-disconnecting switch proving installation, comprises acquisition module, processor, execution module, display module, power module, module, alarm module and test jack module is set; Described test jack module comprises 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B, 237C jack;
The junction of described acquisition module and execution module is provided with order check point; Described order check point comprises protective relaying device 107A order check point KM107A1,107B order check point KM107B1,107C order check point KM107C1,137A order check point KM137A1,137B order check point KM137B1,137C order check point KM137C1,237A order check point KM237A1,237B order check point KM237B1 and 237C order check point KM237C1;
Described in the input termination of described acquisition module, order check point, output termination described in processor, after the signal collecting is processed, export the protective relaying device order identifying to described processor;
Described processor connects described execution module, after received protective relaying device order is processed, indicates described execution module to simulate and closes a floodgate or sub-switching operation;
Described in described execution module is connected on, connect between described test jack module and order check point, processor described in another termination completes simulation and closes a floodgate or sub-switching operation under it is controlled;
Described display module comprises mimic-disconnecting switch status display unit, connects described processor, at it, controls the state that shows isolating switch; Also comprise setting time display unit, connect described setting time setting unit, show combined floodgate and the opening time of its setting;
The described module that arranges, comprises setting current setting unit and setting time setting unit;
Described setting current setting unit, be connected between described order check point and acquisition module, set described mimic-disconnecting switch combined floodgate setting current and separating brake setting current, limit the working current of described execution module, to described acquisition module, provide command recognition reference current;
Described setting time setting unit connects described processor, and the combined floodgate setting time setting and separating brake setting time are stored in described processor;
Described alarm module connects described processor, under it is controlled, sends alarm;
Described power module provides power supply for above-mentioned each module.
Described power module provide direct current+5V ,+24V ,+220V ,+110V ,-110V and+2.5V output.
Described power module comprises Switching Power Supply MOD1, MOD2, MOD3, by external communication 220V power supply respectively through being converted to direct current 5V, 24V, 220V output;
Described power module comprises direct current 24V/2.5V change-over circuit, comprises voltage regulator U1 and resistance R 10, the 4 pin ground connection of described voltage regulator U1, and 8 pin connect direct current+24V power supply through described resistance R 10, and the output terminal as direct current+2.5V is used simultaneously;
Described power module comprises current sensor U11,102,202 ,-110V jack, and after connecting, two IP-pins of described current sensor U11 connect the cathode output end of Switching Power Supply MOD3, and two IP+ pins connect and are connected with direct current+220V power supply.
Described setting current setting unit comprises that combined floodgate setting current arranges circuit and separating brake setting current arranges circuit;
Described combined floodgate setting current arranges circuit and comprises 107A switching current control loop, 107B switching current control loop and 107C switching current control loop;
Described benchmark switching current control loop comprises rotary switch K10, resistance R 82-R85 forms, a termination direct current 2.5V positive source after described resistance R 82-R85 connects successively, other end ground connection, its minute pressure side connects respectively 1 grade to the 4 grades pin of described rotary switch K10; 5 grades of pins of described rotary switch K10 are benchmark combined floodgate comparative voltage output terminal V ON;
Described 107A switching current control loop comprises rotary switch K11 and K12, resistance R 74-R76; Rotary switch is corresponding to four different switching current setting values; The difference of the connection in series-parallel relation by each resistance, has realized the difference of whole circuit pathways current value.To be illustrated as example, after being connected, 5 grades of pins of described rotary switch K11 and 5 grades of pins of rotary switch K12 connect direct current 220V power cathode, 2 grades of pins of described rotary switch K11 are connected with 4 grades of pins by described resistance R 75 and are connected with described 107A protective relaying device order check point, 2 grades of pins of described rotary switch K12 are connected with 3 grades of pins by described resistance R 75 and are connected with described 107A protective relaying device order check point, and described resistance R 74 is connected between described 107A protective relaying device order check point and 220 DC power anodes; 107B switching current control loop is identical with 107C switching current control loop structure and described 107A switching current control loop setting branch structure, is connected between described protective relaying device 107B, 107C order check point and direct current+220V power supply; The swing arm interlock of described rotary switch K10 to K16;
Described separating brake setting current arranges circuit and comprises the primary separating brake current control loop of 137A, the primary separating brake current control loop of 137B and the primary separating brake current control loop of 137C, the standby separating brake current control loop of 237A, the standby separating brake current control loop of 237B and the standby separating brake current control loop of 237C;
Described basis point brake current branch structure is identical with described switching current branch structure, and its 5 grades of pins are benchmark separating brake voltage output end V OFF;
The primary separating brake current control loop of described 137A, the primary separating brake current control loop of 137B and the primary separating brake current control loop of 137C, the standby separating brake current control loop of 237A, the standby separating brake current control loop of 237B and the standby separating brake current control loop of 237C circuit structure are identical with described 107A switching current control loop setting branch structure, and described separating brake setting current arranges the swing arm interlock of each branch road rotary switch in circuit.
Described setting time setting unit comprises that combined floodgate setting time arranges circuit and separating brake setting time arranges circuit; Described combined floodgate setting time arranges circuit and comprises rotary coding switch K1, its 1 pin and 4 pin ground connection, and 2 pin, 3 pin and 5 pin, as output terminal, connect respectively the I/O mouth of described processor; Described separating brake setting time arranges circuit and described combined floodgate setting time, and that circuit structure is set is identical.
Described acquisition module comprises 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B and 237C order detecting unit; 107A order detecting unit comprises 107A voltage divider and 107A command recognition circuit, described 107A voltage divider is composed in series by resistance R 1 and R11,107A protective relaying device order check point described in one termination, other end ground connection, the contact of described resistance R 1 and R11 is as the dividing potential drop output terminal IN ONA of 107A voltage divider; Described 107A command recognition circuit comprises operational amplifier U2A, photoelectrical coupler N8 and resistance R 27, the in-phase input end of described operational amplifier U2A meets the dividing potential drop output terminal IN ONA of described 107A voltage divider, benchmark switching voltage output terminal V ON in module is set described in anti-phase input termination, the negative electrode of photoelectrical coupler N8 described in its output termination, the anode of described photoelectrical coupler N8 connects direct current+24V power supply through described resistance R 27, grounded emitter, collector, as output terminal, connects described processor I/O mouth; All the other 8 order detecting units are identical with the first order detecting unit structure.
Described execution module comprises 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B, 237C executive circuit;
Described 107A executive circuit comprises relay K M5, diode D13, transistors couple device N10 and resistance R 51, the positive pole of described transistors couple device N10 connects direct current+5V power supply through described resistance R 51, negative pole is as control input end, connect described processor I/O mouth, transmitting terminal ground connection, the coil negative pole of relay K M5 described in collector termination, the coil electrode of described relay K M5 connects direct current+24V power supply, its common port is connected with described 107A jack, protective relaying device 107A order check point described in normally closed termination, described diode D13 Opposite direction connection is associated between the coil electrode and negative pole of relay K M5, described 107B is identical with the circuit structure of described 107A executive circuit with 107C executive circuit, except described protective relaying device order check point is connected on the Chang Kaiduan of relay, 137A, 137B, 137C, 237A, 237B, 237C executive circuit are identical with the circuit structure of described 107A executive circuit.
In described display module, mimic-disconnecting switch status display unit comprises between be connected in parallel on+5V direct supply and ground, the identical A of structure close a floodgate mutually indicating circuit, B close a floodgate mutually indicating circuit, C close a floodgate mutually indicating circuit, A phase separating brake indicating circuit, B phase separating brake indicating circuit and C phase separating brake indicating circuit, the described A indicating circuit that closes a floodgate is mutually composed in series by field effect transistor D1, light emitting diode D2 and resistance R 37, the grid of described field effect transistor D1, as control end, connects the I/O mouth of processor.
Setting time display unit in described display module comprises combined floodgate setting time display circuit and separating brake setting time display circuit; Described combined floodgate setting time display circuit comprises charactron LED1, shift register U8 and resistance R 29-R36; The A pin that 7 pin to 1 pin of described shift register U8 meet described charactron LED1 through described resistance R 29-R35 is respectively to G pin, and its 15 pin connects the DP pin of described charactron LED1 through described resistance R 36,8 pin ground connection, and 16 pin connect direct current+5V power supply; Described separating brake setting time display circuit structure is identical with combined floodgate setting time display circuit structure; The I/O mouth that is connected processor after the 9 pin short circuits of 14 pin of described shift register U10 and shift register U8,11 pin of 11 pin of described shift register U10,12 pin and shift register U8 and the I/O mouth that is connected described processor after 12 pin short circuits.
Described alarm module comprises transistor array U7 and hummer ZD; Connect+5V of the 8 pin direct supply of described transistor array U7,9 pin ground connection, the I/O mouth of 4 pin to 7 pin and described processor, 13 pin connect described hummer.
The DIG1 pin of the charactron LED1 in setting time display circuit of closing a floodgate in described display module is connected with 10 pin to 12 pin of transistor array U7 in described alarm module after DIG3 pin is connected with the corresponding pin of charactron LED2 in separating brake setting time display circuit respectively.
The beneficial effect that adopts technique scheme to produce is:
1, the function that the isolating switch that the utility model can be simulated each electric pressure substation field reality has for relay protection device action mechanism, can replace actual isolating switch to carry out the performance test work of protective device, realize on-the-spot protective relaying device a breaker apparatus is protected to verification, loop transmission debugging, after satisfying the requirements, a breaker apparatus only need carry out simple protective device jumping, the test of closing a floodgate just can reach process quality and the requirement of whole group of switch transmission test of protective device, and reduced the action frequency of switch, improved efficiency.
2, the utility model can provide breaker control power supply voluntarily; when substation field is used; breaker operation cabinet is without accessing transformer station direct current system power supply again; so at the scene can be completely by the isolating switch closing loop of protective device and on-the-spot actual isolating switch DC operation control system isolation; even if on-the-spot practical application instrument breaks down; can whole transforming plant DC operational system not produced and be disturbed yet; guarantee the security of physical device and electrical secondary system, improved the security of practical application.
3, the utility model can carry out the correctness of check protection device on/off switch and relevant portion secondary circuit and the anti-jump test of breaker operation cabinet, and has warning function.
4, the utility model is as actual breaker operating characteristic, independent mutually between this instrument three-phase, there is no correlativity.
5, the utility model can coordinate the needed isolating switch of relay protection device of relay protection training base to give teaching training.
6, the utility model can be set combined floodgate, separating brake setting current and time for the situation of actual isolating switch, and the ruuning situation of the on-the-spot isolating switch of energy authentic simulation, protects the debugging of equipment.
7, the embedded program in processor and simplifying, fast operation, meets field adjustable requirement.
Accompanying drawing explanation
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is the current module schematic diagram of the utility model embodiment;
Fig. 3 is the acquisition module circuit theory diagrams of the utility model embodiment;
Fig. 4 is the execution module circuit theory diagrams of the utility model embodiment;
Fig. 5 is that the combined floodgate setting current of the utility model embodiment arranges circuit theory diagrams;
Fig. 6 is that the separating brake setting current of the utility model embodiment arranges circuit theory diagrams;
Fig. 7 is the display module circuit theory diagrams of the utility model embodiment;
Fig. 8 is the alarm module circuit theory diagrams of the utility model embodiment;
Fig. 9 is the display module circuit theory diagrams of the utility model embodiment;
Figure 10 is the processor circuit schematic diagram of the utility model embodiment.
Embodiment
Embodiment: as shown in Figure 1, a kind of used for relay protection mimic-disconnecting switch proving installation, comprises acquisition module 1, processor 2, execution module 3, display module 4, power module 5, module 6, alarm module 7 and test jack module 8 are set;
Described test jack module 8 comprises 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B, 237C jack;
Described acquisition module 1 is provided with order check point 9 with the junction of execution module 3; Described order check point 9 comprises protective relaying device 107A order check point KM107A1,107B order check point KM107B1,107C order check point KM107C1,137A order check point KM137A1,137B order check point KM137B1,137C order check point KM137C1,237A order check point KM237A1,237B order check point KM237B1 and 237C order check point KM237C1;
Described in the input termination of described acquisition module 1, order check point 9, output termination described in processor 2, after the signal collecting is processed, export the protective relaying device order identifying to described processor 2;
Described processor 2 connects described execution module 3, after received protective relaying device order is processed, indicates described execution module 3 to simulate and closes a floodgate or sub-switching operation;
Described in described execution module 3 is connected on, connect between described test jack module 8 and order check point 9, processor 2 described in another termination completes simulation and closes a floodgate or sub-switching operation under it is controlled;
Described display module 4 comprises mimic-disconnecting switch status display unit, connects described processor 2, at it, controls the state of display simulation isolating switch; Also comprise and draw together setting time display unit, connect described setting time setting unit, show combined floodgate and the opening time of its setting;
The described module 6 that arranges, comprises setting current setting unit and setting time setting unit;
Described setting current setting unit, be connected between described order check point 9 and acquisition module 1, set described mimic-disconnecting switch combined floodgate setting current and separating brake setting current, limit the working current of described execution module 3, to described acquisition module 1, provide command recognition reference current;
Described setting time setting unit connects described processor 2, and the combined floodgate setting time setting and separating brake setting time are stored in described processor 2;
Described alarm module 7 connects described processor 2, under it is controlled, sends alarm;
Described power module 5 provides power supply for above-mentioned each module.
As shown in Figure 2, described power module 5 provide direct current+5V ,+24V ,+220V ,+110V ,-110V and+2.5V output.
Described power module 5 comprises Switching Power Supply MOD1, MOD2, MOD3, by external communication 220V power supply respectively through being converted to direct current+5V ,+24V ,-220V output;
Described power module 5 comprises direct current+24V/+2.5V change-over circuit, comprises voltage regulator U1 and resistance R 10, the 4 pin ground connection of described voltage regulator U1, and 8 pin connect direct current+24V power supply through described resistance R 10, and the output terminal as direct current+2.5V is used simultaneously;
Described power module 5 comprises current sensor U11,102,202 ,-110V jack, two IP-pins of described current sensor U11 connect the cathode output end of Switching Power Supply MOD3 after connecting, ground connection after two IP+ pins connect, described 102, the 202 ,-equal ground connection of 110V jack;
Described power module 5 also comprises 101,201, and+110V and ground terminal jacks are described 101,201, and+110V jack links together by resistance R 95 and ground terminal jacks ground connection, the cathode output end of described ground terminal jacks connecting valve power supply MOD3.As transformer station direct current system, positive and negative and between by divider resistance, connect, neutral point is drawn ground terminal (note: the inner earth point of this ground terminal and Switching Power Supply is inconsistent, the two can not short circuit), measures the current potential of each test loop when easy to use; 101,102 terminals are controlled power supply output as first group of isolating switch, access first group of breaker operation cabinet and control power supply, and 201,202 terminals are controlled power supply output as second group of isolating switch, second group of control power supply of access breaker operation cabinet.In the present embodiment, described voltage regulator U1 is IM285-2.5, and current sensor U11 is ACS712, and resistance R 10 is 4k ohm, and R95 and R96 are 200k ohm.
Described setting current setting unit comprises that combined floodgate setting current arranges circuit and separating brake setting current arranges circuit;
As shown in Figure 5, described combined floodgate setting current arranges circuit and comprises that benchmark switching current branch road, 107A switching current control loop are set branch road, 107B switching current control loop sets branch road and 107C switching current control loop is set branch road;
The sub-branch road of described benchmark switching current comprises rotary switch K10, and resistance R 82-R85 forms, termination direct current+2.5V power supply after described resistance R 82-R85 connects successively, and other end ground connection, its minute pressure side connects respectively 1 grade to the 4 grades pin of described rotary switch K10; 5 grades of pins of described rotary switch K10 are benchmark switching voltage output terminal V ON; In the present embodiment, resistance R 82-R85 is 1k ohm.
Described 107A switching current control loop is set branch road and is comprised rotary switch K11 and K12, resistance R 74-R76, after being connected, 5 grades of pins of described rotary switch K11 and 5 grades of pins of rotary switch K12 connect direct current+220V power supply, 2 grades of pins of described rotary switch K11 are connected with 4 grades of pins by described resistance R 75 and are connected with described 107A protective relaying device order check point, 2 grades of pins of described rotary switch K12 are connected with 3 grades of pins by described resistance R 75 and are connected with described 107A protective relaying device order check point, described resistance R 74 is connected between described 107A protective relaying device order check point and direct current+220V power supply, 107B switching current control loop is identical with 107C switching current control loop structure and described 107A switching current control loop setting branch structure, is connected between described protective relaying device 107B, 107C order check point and direct current+220V power supply, the swing arm interlock of described rotary switch K10 to K16, in the present embodiment, resistance R 74 and R76 are 220 ohm, and R75 is 440 ohm.
As shown in Figure 6, described separating brake setting current arranges circuit and comprises basis point brake current branch road, the primary separating brake current control loop of 107A, the primary separating brake current control loop of 107B and the primary separating brake current control loop of 107C, the standby separating brake current control loop of 107A, the standby separating brake current control loop of 107B and the standby separating brake current control loop of 107C; Described basis point brake current branch structure is identical with described switching current branch structure, and its 5 grades of pins are benchmark separating brake voltage output end V OFF; The current information dress of relay protection device sub-gate control circuit is changed to information of voltage to acquisition module and the combined floodgate command information that normal operation information or protection equipment send is relatively analyzed, judged to benchmark combined floodgate comparative voltage.
The primary separating brake current control loop of described 107A, the primary separating brake current control loop of 107B and the primary separating brake current control loop of 107C, the standby separating brake current control loop of 107A, the standby separating brake current control loop of 107B and the standby separating brake current control loop of 107C circuit structure are identical with described 107A switching current control loop setting branch structure, and described separating brake setting current arranges the swing arm interlock of each branch road rotary switch in circuit.
As shown in Figure 7, described setting time setting unit comprises that combined floodgate setting time arranges circuit and separating brake setting time arranges circuit; Described combined floodgate setting time arranges circuit and comprises rotary coding switch K1, its 1 pin and 4 pin ground connection, and 2 pin, 3 pin and 5 pin, as output terminal, connect respectively the I/O mouth of described processor; Described separating brake setting time arranges circuit and described combined floodgate setting time, and that circuit structure is set is identical.
As shown in Figure 3, acquisition module 1 is changed to information of voltage by the current information dress of relay protection device sub-gate control circuit and the combined floodgate command information that normal operation information or protection equipment send is relatively analyzed, judged to benchmark combined floodgate comparative voltage.Described acquisition module 1 comprises 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B and 237C order detecting unit; 107A order detecting unit comprises 107A voltage divider and 107A command recognition circuit, and described 107A voltage divider is composed in series by resistance R 1 and R11,107A protective relaying device order check point described in a termination, another termination direct current-220V power supply; The contact of described resistance R 1 and R11 is as the dividing potential drop output terminal IN ONA of 107A voltage divider; Described 107A command recognition circuit comprises operational amplifier U2A, photoelectrical coupler N8 and resistance R 27, the in-phase input end of described operational amplifier U2A meets the dividing potential drop output terminal IN ONA of described 107A voltage divider, benchmark switching voltage output terminal V ON in module 6 is set described in anti-phase input termination, the negative electrode of photoelectrical coupler N8 described in its output termination, the anode of described photoelectrical coupler N8 connects direct current+24V power supply through described resistance R 27, grounded emitter, collector, as output terminal, connects described processor I/O mouth; All the other 8 order detecting units are identical with the first order detecting unit structure.In the present embodiment, operational amplifier U2A is LM393 chip, and photoelectrical coupler N8 is TLP127 chip, and resistance R 1 is 200k ohm, and R11 is 4.5k ohm, and R27 is 5k ohm.
As shown in Figure 4, described execution module 3 comprises 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B, 237C executive circuit;
Described 107A executive circuit comprises relay K M5, diode D13, transistors couple device N10 and resistance R 51, the positive pole of described transistors couple device N10 connects direct current+5V power supply through described resistance R 51, negative pole is as control input end, connect described processor I/O mouth, transmitting terminal ground connection, the coil negative pole of relay K M5 described in collector termination, the coil electrode of described relay K M5 connects direct current+24V power supply, its common port is connected with described 107A jack, protective relaying device 107A order check point described in normally closed termination, described diode D13 Opposite direction connection is associated between the coil electrode and negative pole of relay K M5, described 107B is identical with the circuit structure of described 107A executive circuit with 107C executive circuit, except described protective relaying device order check point is connected on the Chang Kaiduan of relay, 137A, 137B, 137C, 237A, 237B, 237C executive circuit are identical with the circuit structure of described 107A executive circuit.In the present embodiment, relay K M5 is 943-1C-XDS chip, and diode D13 is IN4007 chip, and transistors couple device N10 is TLP181 chip, and resistance R 51 is 1k ohm.
In described display module 4, mimic-disconnecting switch status display unit comprises between be connected in parallel on+5V direct supply and ground, the identical A of structure close a floodgate mutually indicating circuit, B close a floodgate mutually indicating circuit, C close a floodgate mutually indicating circuit, A phase separating brake indicating circuit, B phase separating brake indicating circuit and C phase separating brake indicating circuit, the described A indicating circuit that closes a floodgate is mutually composed in series by field effect transistor D1, light emitting diode D2 and resistance R 37, the grid of described field effect transistor D1, as control end, connects the I/O mouth of processor.In the present embodiment, field effect transistor D1 is 2n7002 chip, and light emitting diode D2 is LED diode, and resistance R 37 is 300 ohm.
Setting time display unit in described display module 4 comprises combined floodgate setting time display circuit and separating brake setting time display circuit; Described combined floodgate setting time display circuit comprises charactron LED1, shift register U8 and resistance R 29-R36; The A pin that 7 pin to 1 pin of described shift register U8 meet described charactron LED1 through described resistance R 29-R35 is respectively to G pin, and its 15 pin connects the DP pin of described charactron LED1 through described resistance R 36,8 pin ground connection, and 16 pin connect direct current+5V power supply; Described separating brake setting time display circuit structure is identical with combined floodgate setting time display circuit structure; The I/O mouth that is connected processor after the 9 pin short circuits of 14 pin of described shift register U10 and shift register U8,11 pin of 11 pin of described shift register U10,12 pin and shift register U8 and the I/O mouth that is connected described processor after 12 pin short circuits.In the present embodiment, shift register U8 is hc595 chip, and resistance R 29 to R36 is 300 ohm.
As shown in Figure 8, described alarm module 7 comprises transistor array U7 and hummer ZD; Connect+5V of the 8 pin direct supply of described transistor array U7,9 pin ground connection, the I/O mouth of 4 pin to 7 pin and described processor, 13 pin connect described hummer.In the present embodiment, transistor array U7 is ULN2003 chip.
As shown in Figure 9, close a floodgate in the described display module 4 DIG1 pin of the charactron LED1 in setting time display circuit is connected with 10 pin to 12 pin of transistor array U7 in described alarm module 7 after DIG3 pin is connected with the corresponding pin of charactron LED2 in separating brake setting time display circuit respectively.
As shown in figure 10, in the present embodiment, processor is STC 48 single-chip microcomputers, 41 pin connect direct current+2.5V power supply, 18 pin ground connection, 15 pin, 16 pin connect crystal oscillating circuit, and 40 pin connect ACS712 chip 7 pin in power module 5, and 8 pin, 39-31 pin, 43 pin connect respectively the output terminal of 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B, 237C command recognition circuit; 20-24 pin, 26-28 pin, 44 pin connect the control end of 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B, 237C executive circuit; 45-47 pin, 2-4 pin connect respectively A indicating circuit, B close a floodgate the mutually control end of indicating circuit, A phase separating brake indicating circuit, B phase separating brake indicating circuit and C phase separating brake indicating circuit of indicating circuit, C that closes a floodgate mutually that closes a floodgate mutually; 9 pin, 29 pin, 32 pin engage lock setting time circuit output end are set, and 5 pin, 10 pin, 30 pin connect separating brake setting time circuit output end is set, 10-14 pin module taking alarm, and 7 pin, 24 pin, 31 pin connect setting time display unit.
In the present embodiment, the relay that 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B, 237C carry out in loop is respectively relay K M5, KM1, KM2, KM3, KM4, KM6, KM7, KM8, KM9.
The utility model is connect with closing circuit and the sub-gate circuit of relay protection operation case and is linked together by secondary circuit test wire.During power-on, under Single-chip Controlling, circuit-breaker status is set to gate-dividing state, lights separating brake pilot lamp, extinguishes combined floodgate pilot lamp.
Mimic-disconnecting switch closes a floodgate, separating brake setting current is set by rotary switch, 1A, 1.5A, 2A, 2.5A fourth gear are set in the present embodiment, set position and rotary switch swing arm short circuit, the voltage that corresponding divider resistance is provided is sent into the inverting input of operational amplifier in acquisition module 1, as benchmark combined floodgate, separating brake voltage.Combined floodgate, the separating brake setting time that rotation toggle switch is set sent into single-chip microcomputer storage, and under the control of single-chip microcomputer, charactron LED1 and LED2 show respectively combined floodgate, separating brake setting time.
107A closing operation take below as example explanation the utility model closing operation process.When mimic-disconnecting switch starts, relay K M5 short circuit 107A jack and 107A order check point, relay protection operation case sends while closing a floodgate order, there is large electric current in 107A secondary circuit test wire, normal-closed end through relay K M5 flows to 107A order detection node, through 107A voltage divider dividing potential drop, output to again the in-phase input end of operational amplifier U2A, if the in-phase input end voltage of U2A is higher than the benchmark switching voltage V ON of inverting input input, being identified as the A order of closing a floodgate mutually occurs, through photoelectrical coupler, be input to processor P 31 ends, whether single-chip microcomputer judgement is less than 0.5s with the time interval that last time, A moved mutually, if be not less than 0.5s, after the combined floodgate setting time that time delay sets, Single-chip Controlling relay K 5, K3 and K7 adhesive, light separating brake pilot lamp, extinguish combined floodgate pilot lamp.Otherwise Single-chip Controlling relay K 5, K3 and K7 discharge, and light combined floodgate pilot lamp, extinguish separating brake pilot lamp.
137A sub-switching operation take below as example explanation the utility model closing operation process.When mimic-disconnecting switch instrument starts, therefore open circuit between 137A jack and 137A order check point, now can't detect relay protection operation case and send separating brake order.After mimic-disconnecting switch closing operation, relay K 3 is in attracting state, 137A jack and 137A order check point are linked together, afterwards, when relay protection operation case sends separating brake order again, there is large electric current in 137A secondary circuit test wire, normal-closed end through relay K M5 flows to 137A order detection node, through 137A voltage divider dividing potential drop, output to again the in-phase input end of operational amplifier U3B, if the in-phase input end voltage of U3B is higher than the benchmark separating brake voltage V OFF of inverting input input, being identified as the order of A phase separating brake occurs, through photoelectrical coupler, be input to processor P 37 ends, whether single-chip microcomputer judgement is less than 0.5s with the time interval that last time, A moved mutually, if be not less than 0.5s, Single-chip Controlling relay K 5, K3 and K7 adhesive, after the separating brake setting time that time delay sets, extinguish separating brake pilot lamp, light combined floodgate pilot lamp.Otherwise Single-chip Controlling relay K 5, K3 and K7 discharge, and extinguish combined floodgate pilot lamp, light separating brake pilot lamp.
The utility model has also been simulated the anti-bouncing function of isolating switch, when minute, require isolating switch can not close a floodgate setting in gate-dividing state during the state of simultaneously short circuit conducting of closing circuit.According to operating experience, action delay situation because of different relays, the time of its simultaneously conducting is not more than 10ms, the utility model single-chip microcomputer by programming check with actuation time last time interval whether be greater than predetermined threshold value 0.1s, determine whether action generation simultaneously.When separating brake having been detected, the order of closing a floodgate is when input simultaneously, drive immediately corresponding relay, by isolating switch setting in gate-dividing state, even if now still exist the input of combined floodgate command signal also can not change by generation state, if the duration surpasses 10ms, the instrument warning that can pipe, means anti-bouncing function failure.Realizing the anti-jump test of control box and warning function is also an advantage of this device.
The action behavior process of protection equipment operating isolating switch is all substantially below Millisecond, and in order to detect accurately various control informations, this instrument single-chip microcomputer used requires its predominant frequency should be more than 100 megahertzes.Single-chip microcomputer should comprise the storeies such as input, output data-interface and RAM, ROM, EPROM, contain A D translation interface.
Claims (11)
1. a used for relay protection mimic-disconnecting switch proving installation, is characterized in that: comprise acquisition module (1), processor (2), execution module (3), display module (4), power module (5), module (6), alarm module (7) and test jack module (8) are set; Described test jack module (8) comprises 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B, 237C jack;
Described acquisition module (1) is provided with order check point (9) with the junction of execution module (3); Described order check point (9) comprises protective relaying device 107A order check point KM107A1,107B order check point KM107B1,107C order check point KM107C1,137A order check point KM137A1,137B order check point KM137B1,137C order check point KM137C1,237A order check point KM237A1,237B order check point KM237B1 and 237C order check point KM237C1;
Described in the input termination of described acquisition module (1), order check point (9), output termination described in processor (2), after the signal collecting is processed, export the protective relaying device order identifying to described processor (2);
Described processor (2) connects described execution module (3), after received protective relaying device order is processed, indicates described execution module (3) to simulate and closes a floodgate or sub-switching operation;
Described in described execution module (3) is connected on, connect between described test jack module (8) and order check point (9), processor (2) described in another termination completes simulation and closes a floodgate or sub-switching operation under it is controlled;
Described display module (4) comprises mimic-disconnecting switch status display unit, connects described processor (2), at it, controls the state that shows isolating switch; Also comprise setting time display unit, connect described setting time setting unit, show combined floodgate and the opening time of its setting;
The described module (6) that arranges, comprises setting current setting unit and setting time setting unit;
Described setting current setting unit, be connected between described order check point (9) and acquisition module (1), set described mimic-disconnecting switch combined floodgate setting current and separating brake setting current, limit the working current of described execution module (3), to described acquisition module (1), provide command recognition reference current;
Described setting time setting unit connects described processor (2), and the combined floodgate setting time setting and separating brake setting time are stored in described processor (2);
Described alarm module (7) connects described processor (2), under it is controlled, sends alarm;
Described power module (5) provides power supply for above-mentioned each module.
2. used for relay protection mimic-disconnecting switch proving installation as claimed in claim 1, is characterized in that: described power module (5) provide direct current+5V ,+24V ,+220V ,+110V ,-110V and+2.5V output.
3. used for relay protection mimic-disconnecting switch proving installation as claimed in claim 1, is characterized in that: described power module (5) comprises Switching Power Supply MOD1, MOD2, MOD3, by external communication 220V power supply respectively through being converted to direct current 5V, 24V, 220V output;
Described power module (5) comprises direct current 24V/2.5V change-over circuit, comprises voltage regulator U1 and resistance R 10, the 4 pin ground connection of described voltage regulator U1, and 8 pin connect direct current+24V power supply through described resistance R 10, and the output terminal as direct current+2.5V is used simultaneously;
Described power module (5) comprises current sensor U11,102,202 ,-110V jack, and after connecting, two IP-pins of described current sensor U11 connect the cathode output end of Switching Power Supply MOD3, and two IP+ pins connect and are connected with direct current+220V power supply.
4. used for relay protection mimic-disconnecting switch proving installation as claimed in claim 1, is characterized in that: described setting current setting unit comprises that combined floodgate setting current arranges circuit and separating brake setting current arranges circuit;
Described combined floodgate setting current arranges circuit and comprises 107A switching current control loop, 107B switching current control loop and 107C switching current control loop;
Described benchmark switching current control loop comprises rotary switch K10, resistance R 82-R85 forms, a termination direct current 2.5V positive source after described resistance R 82-R85 connects successively, other end ground connection, its minute pressure side connects respectively 1 grade to the 4 grades pin of described rotary switch K10; 5 grades of pins of described rotary switch K10 are benchmark combined floodgate comparative voltage output terminal V ON;
Described 107A switching current control loop comprises rotary switch K11 and K12, resistance R 74-R76; Rotary switch is corresponding to four different switching current setting values; The difference of the connection in series-parallel relation by each resistance, has realized the difference of whole circuit pathways current value; To be illustrated as example, after being connected, 5 grades of pins of described rotary switch K11 and 5 grades of pins of rotary switch K12 connect direct current 220V power cathode, 2 grades of pins of described rotary switch K11 are connected with 4 grades of pins by described resistance R 75 and are connected with described 107A protective relaying device order check point, 2 grades of pins of described rotary switch K12 are connected with 3 grades of pins by described resistance R 75 and are connected with described 107A protective relaying device order check point, and described resistance R 74 is connected between described 107A protective relaying device order check point and 220 DC power anodes; 107B switching current control loop is identical with 107C switching current control loop structure and described 107A switching current control loop setting branch structure, is connected between described protective relaying device 107B, 107C order check point and direct current+220V power supply; The swing arm interlock of described rotary switch K10 to K16;
Described separating brake setting current arranges circuit and comprises the primary separating brake current control loop of 137A, the primary separating brake current control loop of 137B and the primary separating brake current control loop of 137C, the standby separating brake current control loop of 237A, the standby separating brake current control loop of 237B and the standby separating brake current control loop of 237C;
Described basis point brake current branch structure is identical with described switching current branch structure, and its 5 grades of pins are benchmark separating brake voltage output end V OFF;
The primary separating brake current control loop of described 137A, the primary separating brake current control loop of 137B and the primary separating brake current control loop of 137C, the standby separating brake current control loop of 237A, the standby separating brake current control loop of 237B and the standby separating brake current control loop of 237C circuit structure are identical with described 107A switching current control loop setting branch structure, and described separating brake setting current arranges the swing arm interlock of each branch road rotary switch in circuit.
5. used for relay protection mimic-disconnecting switch proving installation as claimed in claim 1, is characterized in that: described setting time setting unit comprises that combined floodgate setting time arranges circuit and separating brake setting time arranges circuit; Described combined floodgate setting time arranges circuit and comprises rotary coding switch K1, its 1 pin and 4 pin ground connection, and 2 pin, 3 pin and 5 pin, as output terminal, connect respectively the I/O mouth of described processor; Described separating brake setting time arranges circuit and described combined floodgate setting time, and that circuit structure is set is identical.
6. used for relay protection mimic-disconnecting switch proving installation as claimed in claim 1, is characterized in that: described acquisition module (1) comprises 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B and 237C order detecting unit; 107A order detecting unit comprises 107A voltage divider and 107A command recognition circuit, described 107A voltage divider is composed in series by resistance R 1 and R11,107A protective relaying device order check point described in one termination, other end ground connection, the contact of described resistance R 1 and R11 is as the dividing potential drop output terminal IN ONA of 107A voltage divider; Described 107A command recognition circuit comprises operational amplifier U2A, photoelectrical coupler N8 and resistance R 27, the in-phase input end of described operational amplifier U2A meets the dividing potential drop output terminal IN ONA of described 107A voltage divider, benchmark switching voltage output terminal V ON in module (6) is set described in anti-phase input termination, the negative electrode of photoelectrical coupler N8 described in its output termination, the anode of described photoelectrical coupler N8 connects direct current+24V power supply through described resistance R 27, grounded emitter, collector, as output terminal, connects described processor I/O mouth; All the other 8 order detecting units are identical with the first order detecting unit structure.
7. used for relay protection mimic-disconnecting switch proving installation as claimed in claim 1, is characterized in that: described execution module (3) comprises 107A, 107B, 107C, 137A, 137B, 137C, 237A, 237B, 237C executive circuit;
Described 107A executive circuit comprises relay K M5, diode D13, transistors couple device N10 and resistance R 51, the positive pole of described transistors couple device N10 connects direct current+5V power supply through described resistance R 51, negative pole is as control input end, connect described processor I/O mouth, transmitting terminal ground connection, the coil negative pole of relay K M5 described in collector termination, the coil electrode of described relay K M5 connects direct current+24V power supply, its common port is connected with described 107A jack, protective relaying device 107A order check point described in normally closed termination, described diode D13 Opposite direction connection is associated between the coil electrode and negative pole of relay K M5, described 107B is identical with the circuit structure of described 107A executive circuit with 107C executive circuit, except described protective relaying device order check point is connected on the Chang Kaiduan of relay, 137A, 137B, 137C, 237A, 237B, 237C executive circuit are identical with the circuit structure of described 107A executive circuit.
8. used for relay protection mimic-disconnecting switch proving installation as claimed in claim 1, it is characterized in that: in described display module (4), mimic-disconnecting switch status display unit comprises between be connected in parallel on+5V direct supply and ground, the identical A of the structure indicating circuit that closes a floodgate mutually, the B indicating circuit that closes a floodgate mutually, the C indicating circuit that closes a floodgate mutually, A phase separating brake indicating circuit, B phase separating brake indicating circuit and C phase separating brake indicating circuit, described A closes a floodgate indicating circuit mutually by field effect transistor D1, light emitting diode D2 and resistance R 37 are composed in series, the grid of described field effect transistor D1 is as control end, connect the I/O mouth of processor.
9. used for relay protection mimic-disconnecting switch proving installation as claimed in claim 1, is characterized in that: the setting time display unit in described display module (4) comprises combined floodgate setting time display circuit and separating brake setting time display circuit; Described combined floodgate setting time display circuit comprises charactron LED1, shift register U8 and resistance R 29-R36; The A pin that 7 pin to 1 pin of described shift register U8 meet described charactron LED1 through described resistance R 29-R35 is respectively to G pin, and its 15 pin connects the DP pin of described charactron LED1 through described resistance R 36,8 pin ground connection, and 16 pin connect direct current+5V power supply; Described separating brake setting time display circuit structure is identical with combined floodgate setting time display circuit structure; The I/O mouth that is connected processor after the 9 pin short circuits of 14 pin of described shift register U10 and shift register U8,11 pin of 11 pin of described shift register U10,12 pin and shift register U8 and the I/O mouth that is connected described processor after 12 pin short circuits.
10. used for relay protection mimic-disconnecting switch proving installation as claimed in claim 1, is characterized in that: described alarm module (7) comprises transistor array U7 and hummer ZD; Connect+5V of the 8 pin direct supply of described transistor array U7,9 pin ground connection, the I/O mouth of 4 pin to 7 pin and described processor, 13 pin connect described hummer.
11. used for relay protection mimic-disconnecting switch proving installations as claimed in claim 9, is characterized in that: the DIG1 pin of the charactron LED1 in described display module (4) in combined floodgate setting time display circuit is connected with 10 pin to 12 pin of the middle transistor array U7 of described alarm module (7) after DIG3 pin is connected with the corresponding pin of charactron LED2 in separating brake setting time display circuit respectively.
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| CN201320580576.0U CN203502556U (en) | 2013-09-18 | 2013-09-18 | Simulation circuit breaker testing device for relay protection |
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| CN104635153B (en) * | 2015-02-07 | 2017-06-06 | 福州大学 | Low-voltage circuit breaker characteristic test analysis platform |
| CN104635153A (en) * | 2015-02-07 | 2015-05-20 | 福州大学 | Low-voltage circuit breaker feature test analysis platform |
| CN104932387A (en) * | 2015-07-03 | 2015-09-23 | 梁超洪 | A main and standby equipment intelligent converter |
| CN107462841A (en) * | 2017-08-09 | 2017-12-12 | 南京国电南自电网自动化有限公司 | A kind of device for fast detecting for protective relaying device power supply |
| CN109727791A (en) * | 2017-10-27 | 2019-05-07 | 伊顿智能动力有限公司 | Switchgear with interface module |
| US11842872B2 (en) | 2017-10-27 | 2023-12-12 | Eaton Intelligent Power Limited | Switching device with interface module |
| CN111122994A (en) * | 2018-10-31 | 2020-05-08 | 南京南瑞继保电气有限公司 | Man-machine interaction testing device for simulation circuit breaker |
| CN111122994B (en) * | 2018-10-31 | 2022-04-19 | 南京南瑞继保电气有限公司 | Man-machine interaction testing device for simulation circuit breaker |
| CN110940874A (en) * | 2019-11-18 | 2020-03-31 | 岭澳核电有限公司 | Calibration method, server and medium for nuclear power station transformer protection device |
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