CN2050981U - Analogue circuit breaker - Google Patents
Analogue circuit breaker Download PDFInfo
- Publication number
- CN2050981U CN2050981U CN89208586U CN89208586U CN2050981U CN 2050981 U CN2050981 U CN 2050981U CN 89208586 U CN89208586 U CN 89208586U CN 89208586 U CN89208586 U CN 89208586U CN 2050981 U CN2050981 U CN 2050981U
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- circuit
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Abstract
The utility model relates to a simulating circuit breaker used for the whole experiments of relaying protection for high-voltage transmission lines, having displayed trip and switch-on actions. The utility model is characterized in provided with separate simulating break circuits for three phases A, B, C, wherein, each phase comprises a switch-on circuit, a trip circuit, a display circuit and a contact-point control circuit. The utility model can replace and simulate circuit breakers of different types to carry out separate-phase test operation or three-phase test operation. The utility model with simple circuit, strong versatility, small size and light weight can be used as a simulating circuit breaker, and be used in relay protection, automated assembly, teaching demonstration and other occasions.
Description
The utility model is a kind of when being used for power system high tension power line relay protection total group test, substitutes the isolating switch in the transmission line of electricity, the test unit of mimic-disconnecting switch breaker tripping and closing action.
General band composite auto-reclosing, zero sequence, distance, high frequency differ, the ultra-high-tension power transmission line of high frequency latch-up protection device is protected, console panel; when doing total group test; directly connect isolating switch and control its jumping, close action and do not repeat, as calculated, isolating switch is unloaded jumps, close and reach 829.5 times.If in this test, repetitive process is arranged or increase another set of protective device compatibility test, the unloaded jumping of isolating switch closed and will be surpassed more than 1,000 times.Certainly will make its contact wear, spring fatigue, mechanical mechanism damage even malfunctioning, the aging parameter that changes of coil, greatly influence actual performance and the life-span of using, and injure the safe operation of transmission line of electricity.In order to solve this thatch shield, general at present the employing got two kinds of methods: a kind of method is still to connect isolating switch to test, but reduces the project and the number of times of test; Another kind method is not connect isolating switch, and replaces isolating switch with non-specialized instrument and equipment such as multimeter or bulb, the breaker tripping and closing current signal that measurement or demonstration protection, control device send.Obviously, these two kinds of methods not only do not meet the regulation of relevant total group test, and extremely inaccurate, time-consuming, effort, waste material.
The purpose of this utility model is: the mimic-disconnecting switch device that the above-mentioned test usefulness of a kind of confession is provided, as the isolating switch analog loopback, when test is closed in whole assembly, mimic-disconnecting switch " jumping ", " closing " operating state are also shown, make experiment work rapidly, accurately, reliably, thereby ensure the safe operation of ultra-high-tension power transmission line.
The purpose of this utility model is to be realized by following scheme:
The utlity model has the identical A of circuit structure, B, C three-phase simulation open circuit, every circuitry phase is separate, and closing circuit, trip(ping) circuit, show circuit and contact control loop are all arranged.Closing circuit comprise the magnetic latching relay coil, with the closing coil artifical resistance of coils from parallel connection of coils.Comprise in the trip(ping) circuit magnetic latching relay another coil, with the breaking coil artifical resistance of coils from parallel connection of coils.Show circuit comprises combined floodgate and the tripping operation show circuit of being connected in turn by the magnetic latching relay contact; The combined floodgate show circuit is formed by divider resistance, contact output relay coil, pilot lamp serial connection; The tripping operation show circuit is concatenated into by divider resistance and pilot lamp.The contact control loop is a pair of normally closed contact and a pair of normally opened contact of contact output relay; Normally closed contact is serially connected between closing circuit and the power bus negative pole; Normally opened contact is serially connected between trip(ping) circuit and the power bus negative pole.
Closing circuit receives the closing pulse signal, shows and keep "on" position by the combined floodgate show circuit, connects trip(ping) circuit by the contact control loop simultaneously, to wait the tripping operation pulse signal.Trip(ping) circuit receives the tripping operation pulse signal, shows and keep tripped condition by the tripping operation show circuit, connects closing circuit by the contact control loop simultaneously, to wait the closing pulse signal.
The utility model circuit is simple, electrical equipment is few, need not bigger change protection, the control device circuit can fully verify correcting errors that protection, control device move when total group test, thereby simulate effect is good, implements easily; Simultaneously, the volume of device own is little, in light weight, low price, highly versatile, except that using as mimic-disconnecting switch, also can be widely used in relay protection, and automation equipment and teaching demonstration etc. needs the occasion of minimum circuit breaker.
Accompanying drawing is the utility model circuit theory diagrams.
Number in the figure: a. closing circuit, b. trip(ping) circuit, c. show circuit, d. contact control loop.
By the following examples, and in conjunction with the accompanying drawings, the utility model is further described.
Embodiment:
A, B, C three-phase simulation open circuit structure are identical, and every circuitry phase is separate, and closing circuit (a), trip(ping) circuit (b), show circuit (c) and contact control loop (d) are all arranged.
Closing circuit (a) comprises magnetic latching relay coil J I, coil J I is with after divider resistance RJH connects, RHQ is in parallel with the closing coil artifical resistance, closing by hand button NH adopts dibit bilateral pushbutton switch, 3.-1. its normally closed contact NH is serially connected in closing pulse input end (7) and divider resistance RJH one end, and 2.-4. its normally opened contact NH is serially connected in power bus+KM(01) and divider resistance RJH one end.
Trip(ping) circuit (b) comprises another coil J II of magnetic latching relay, coil J II is with after divider resistance RJT connects, RTQ is in parallel with the breaking coil artifical resistance, hand trip(ping) button NT adopts dibit bilateral pushbutton switch, 3.-1. its normally closed contact NT is serially connected in tripping operation pulse input end (37) and divider resistance RJT one end, and 2.-4. its normally opened contact NT is serially connected in power bus+KM(01) and divider resistance RJT one end.
Show circuit (c) comprises combined floodgate and the separating brake show circuit of being connected in turn by magnetic latching relay J contact; The combined floodgate show circuit is formed by divider resistance RH, contact output relay coil DLJ and red led HD serial connection; The tripping operation show circuit is formed by divider resistance RL and green indicating lamp LD serial connection.
Contact control loop (d) be contact output relay DLJ a pair of normally closed contact DLJ 4.-3. with a pair of normally opened contact DLJ 2.-3..Normally closed contact DLJ(4)-3. be serially connected in closing circuit (a) and power bus one KM(02) between, 2.-3. normally opened contact DLJ is serially connected between trip(ping) circuit (b) and the power bus-KM(02).
Contact output relay DLJ has one group of above contact.The resistance of divider resistance RJT, RJH, RH, RT is selected according to actual needs.Coil artifical resistance RTQ, RHQ are suitching type, to adapt to the needs of different model isolating switch.Pilot lamp can adopt light emitting diode or incandescent lamp bulb.
Closing circuit (a) receives the closing pulse signal by input end (7), also can pass through hand push button NH, and by power supply+KM(01) provide the closing pulse signal, relay coil J I gets electric, its contact J
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Connect and self-sustaining, HD is bright for the combined floodgate pilot lamp, and contact output relay DLJ gets electric, and 2.-3. contact DLJ connects trip(ping) circuit, with pulse to be tripped.
Trip(ping) circuit (b) receives the tripping operation pulse signal by input end (37), also can pass through hand push button NT, and by power supply+KM(01) provide the tripping operation pulse signal, relay coil J II gets electric, contact J
Connect and self-sustaining, LD is bright for the tripping operation pilot lamp, contact output relay DLJ dead electricity, and 4.-3. electric shock DLJ recovers to connect closing circuit, to treat closing pulse.Utilize other contact of contact output relay DLJ, insert signal, alarm window loop in protection, the console panel, on protection, console panel, directly show test findings; This contact also can be used as the required voltage of the required signal input quantity of protective relaying device and protector measuring loop, the reference mark of electric current input quantity; Also can be as little load current branch, the miniature circuit breaker fracture that closes, or be used for protective relaying device man-made fault source and protective relaying device itself etc.
Claims (4)
1, a kind of mimic-disconnecting switch that is used for ultra-high-tension power transmission line relay protection total group test is characterized in that:
(1) identical A, B, a C three-phase simulation open circuit arranged, every circuitry phase is separate;
(2) described three-phase simulation open circuit all has closing circuit (a), trip(ping) circuit (b), show circuit (c) and contact control loop (d);
(3) described closing circuit (a) comprises magnetic latching relay coil JI, the closing coil artifical resistance RHQ in parallel with coil JI;
(4) described trip(ping) circuit (b) comprises another coil J II of magnetic latching relay, the breaking coil artifical resistance RTQ in parallel with coil J II;
(5) described show circuit (c) comprises combined floodgate and the tripping operation show circuit of being connected in turn by the magnetic latching relay contact; The combined floodgate show circuit is formed by divider resistance RH, contact output relay coil DLJ, pilot lamp HD serial connection; The tripping operation show circuit is concatenated into by divider resistance RL and pilot lamp LD;
(6) described contact control loop (d) is a pair of normally closed contact and a pair of normally opened contact of contact output relay DLJ; Normally closed contact is serially connected between closing circuit (a) and power bus-KM (02); Normally opened contact is serially connected between trip(ping) circuit (b) and power bus-KM (02).
2, mimic-disconnecting switch according to claim 1 is characterized in that being in series with divider resistance RJH, RJT respectively in described closing circuit (a), the trip(ping) circuit (b); Power bus+KM(01) and between closing pulse input end (7) and the tripping operation pulse input end (37) be connected with hand push button NH and NT respectively.
3, mimic-disconnecting switch according to claim 1 and 2 is characterized in that described coil artifical resistance RTQ, RHQ are suitching type.
4, mimic-disconnecting switch according to claim 1 and 2 is characterized in that described magnetic latching relay J and contact output relay DLJ have one group of above contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89208586U CN2050981U (en) | 1989-06-14 | 1989-06-14 | Analogue circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89208586U CN2050981U (en) | 1989-06-14 | 1989-06-14 | Analogue circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2050981U true CN2050981U (en) | 1990-01-10 |
Family
ID=4865251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89208586U Withdrawn CN2050981U (en) | 1989-06-14 | 1989-06-14 | Analogue circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2050981U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004174A (en) * | 2010-11-04 | 2011-04-06 | 襄城县供电局 | Analog circuit breaker |
| CN102338815A (en) * | 2011-09-28 | 2012-02-01 | 西安供电局 | Simulated circuit breaker |
| CN107202928A (en) * | 2017-06-22 | 2017-09-26 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of automatic throw-in equipment of emergency power supply mimic-disconnecting switch |
| CN113702822A (en) * | 2021-09-13 | 2021-11-26 | 深圳供电局有限公司 | Simulated circuit breaker device for tripping and closing tests of power grid relay protection equipment |
-
1989
- 1989-06-14 CN CN89208586U patent/CN2050981U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004174A (en) * | 2010-11-04 | 2011-04-06 | 襄城县供电局 | Analog circuit breaker |
| CN102338815A (en) * | 2011-09-28 | 2012-02-01 | 西安供电局 | Simulated circuit breaker |
| CN107202928A (en) * | 2017-06-22 | 2017-09-26 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of automatic throw-in equipment of emergency power supply mimic-disconnecting switch |
| CN107202928B (en) * | 2017-06-22 | 2023-10-20 | 国网辽宁省电力有限公司鞍山供电公司 | Automatic switching-on device analog circuit breaker of standby power supply |
| CN113702822A (en) * | 2021-09-13 | 2021-11-26 | 深圳供电局有限公司 | Simulated circuit breaker device for tripping and closing tests of power grid relay protection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |