CN203981797U - A kind of three-phase portable simulation isolating switch - Google Patents
A kind of three-phase portable simulation isolating switch Download PDFInfo
- Publication number
- CN203981797U CN203981797U CN201420339646.8U CN201420339646U CN203981797U CN 203981797 U CN203981797 U CN 203981797U CN 201420339646 U CN201420339646 U CN 201420339646U CN 203981797 U CN203981797 U CN 203981797U
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- phase
- signal input
- relay
- linked switch
- time relay
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Abstract
The utility model discloses a kind of three-phase portable simulation isolating switch; It comprises trip unit and combined floodgate unit, described trip unit is made up of time relay T11-T13, auxiliary relay J11-J13, resistance R 11-R13, linked switch S1 and linked switch S2, coil one tunnel of described auxiliary relay J11-J13 meets respectively A phase trip signal input end A1, B phase trip signal input end B1, C phase trip signal input end C1, and another road all meets three-phase trip signal input end T simultaneously; Described combined floodgate unit (2) is identical with trip unit (1) structure, and combined floodgate unit (2) are made up of time relay T21-T23, auxiliary relay J21-J23, resistance R 21-R23, linked switch S1 and linked switch S2; It has effectively improved the efficiency of isolating switch and protective device functional test thereof, has solved the three-phase breaker problem wasting time and energy with closing operation that simultaneously trips.
Description
Technical field
The utility model relates to a kind of three-phase portable simulation isolating switch, and especially a kind of electric pressure that is applicable to is 220kV and above primary cut-out.
Background technology
At transformer station and user's switchgear building, carry out to the protective device of the primary cut-out of new installation the functional tests such as transmission, breaker tripping and closing.In order to ensure the accuracy of test, primary cut-out will carry out tripping operation and closing operation repeatedly, and a large amount of tripping operations and closing frequencies can cause harmful effect to primary cut-out, reduces the serviceable life of primary cut-out.In 110kV transformer station, employing be the primary cut-out of three-phase ganged.The switch contact of three-phase high-voltage isolating switch is in a circuit breaker operation mechanism case; controlled tripping operation and the combined floodgate of three-phase by a set of secondary operation loop simultaneously; but the transformer station that electric pressure is 220kV; what 220kV isolating switch adopted is the primary cut-out of phase-splitting operation, and every phase primary cut-out uses separately a protective device mechanism case.In addition, when the discontented foot protection functional test of actual isolating switch condition needs at the scene, tripping operation and closing operation and single-phase tripping operation and closing operation when completing three-phase high-voltage isolating switch by mimic-disconnecting switch; Need to complete three-phase breaker and trip and closing operation simultaneously, will be with three people, everyone controls a single-phase mimic-disconnecting switch, the very trouble that operates, not only time-consuming but also effort.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of three-phase portable simulation isolating switch, and especially a kind of electric pressure that is applicable to is 220kV and above primary cut-out.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows:
A kind of three-phase portable simulation isolating switch, is characterized in that: it comprises trip unit and combined floodgate unit; Described trip unit is made up of time relay T11-T13, auxiliary relay J11-J13, resistance R 11-R13, linked switch S1 and linked switch S2; Coil one tunnel of described auxiliary relay J11-J13 meets respectively A phase trip signal input end A1, B phase trip signal input end B1, C phase trip signal input end C1, and another road all meets three-phase trip signal input end T simultaneously; The coil of often opening electric shock J11-1, time relay T11 of the normal battle of described linked switch S1, the normally closed point of linked switch S2, auxiliary relay J11 connect successively after between be connected on+24V and ground, after the coil series connection of often opening electric shock J12-1, time relay T12 of described auxiliary relay J12, be connected between the normally closed point and the described node b and ground that often opens electric shock J11-1 of linked switch S2, after the coil series connection of often opening electric shock J13-1, time relay T13 of described auxiliary relay J13, be connected between described node b and ground; After the normally closed electric shock T11-1 series connection of described resistance R 11, time relay T11, between be connected on+24V and ground, its node is A phase trip signal output terminals A T; For after the normally closed electric shock T12-1 series connection of described resistance R 12, time relay T12 between be connected on+24V and ground, its node is B phase trip signal output terminal BT; After the normally closed electric shock T13-1 series connection of described resistance R 13, time relay T13, between be connected on+24V and ground, its node is C phase trip signal output terminal CT;
Described combined floodgate unit is identical with trip unit structure, and combined floodgate unit is made up of time relay T21-T23, auxiliary relay J21-J23, resistance R 21-R23, linked switch S1 and linked switch S2; Coil one tunnel of described auxiliary relay J21-J23 meets respectively A signal input part A2, B signal input part B2, the C signal input part C2 that closes a floodgate mutually that closes a floodgate mutually that closes a floodgate mutually, and another road all meets three-phase switching signal input end H simultaneously; The output terminal of described combined floodgate unit is respectively A signal output part AH, B signal output part AH, the C signal output part AH that closes a floodgate mutually that closes a floodgate mutually that closes a floodgate mutually.
The beneficial effect that adopts technique scheme to produce is:
When in the time testing, the tripping operation of high voltage breaker simulator is with combined floodgate, adopt the utility model can avoid repeatedly tripping and the harmful effect of closing a floodgate and bringing to isolating switch because revision test needs isolating switch, effectively improve again the efficiency of isolating switch and protective device functional test thereof, this device both can have been simulated three-phase high-voltage isolating switch and tripped and feed motion simultaneously, also can simulate single-phase tripping operation and feed motion; Solve the three-phase breaker problem wasting time and energy with closing operation that simultaneously trips.
Brief description of the drawings
Fig. 1 is circuit theory diagrams of the present utility model;
In Fig. 1: 1, trip unit; 2, combined floodgate unit.
Embodiment
Referring to accompanying drawing 1, a kind of three-phase portable simulation isolating switch in the structure of a specific embodiment of the utility model, is characterized in that: it comprises trip unit 1 and combined floodgate unit 2; Trip unit 1 is made up of time relay T11-T13, auxiliary relay J11-J13, resistance R 11-R13, linked switch S1 and linked switch S2; Coil one tunnel of auxiliary relay J11-J13 meets respectively A phase trip signal input end A1, B phase trip signal input end B1, C phase trip signal input end C1, and another road all meets three-phase trip signal input end T simultaneously; The coil of often opening electric shock J11-1, time relay T11 of the normal battle of linked switch S1, the normally closed point of linked switch S2, auxiliary relay J11 connect successively after between be connected on+24V and ground, after the coil series connection of often opening electric shock J12-1, time relay T12 of auxiliary relay J12, be connected on the normally closed point of linked switch S2 and often open between the node b and ground of electric shock J11-1, after the coil series connection of often opening electric shock J13-1, time relay T13 of auxiliary relay J13, being connected between node b and ground; After the normally closed electric shock T11-1 series connection of resistance R 11, time relay T11, between be connected on+24V and ground, its node is A phase trip signal output terminals A T; For after the normally closed electric shock T12-1 series connection of resistance R 12, time relay T12 between be connected on+24V and ground, its node is B phase trip signal output terminal BT; After the normally closed electric shock T13-1 series connection of resistance R 13, time relay T13, between be connected on+24V and ground, its node is C phase trip signal output terminal CT; Combined floodgate unit 2 is identical with trip unit 1 structure, and combined floodgate unit 2 is made up of time relay T21-T23, auxiliary relay J21-J23, resistance R 21-R23, linked switch S1 and linked switch S2; Coil one tunnel of auxiliary relay J21-J23 meets respectively A signal input part A2, B signal input part B2, the C signal input part C2 that closes a floodgate mutually that closes a floodgate mutually that closes a floodgate mutually, and another road all meets three-phase switching signal input end H simultaneously; The output terminal of combined floodgate unit 2 is respectively A signal output part AH, B signal output part AH, the C signal output part AH that closes a floodgate mutually that closes a floodgate mutually that closes a floodgate mutually.The model of time relay T11-T13, time relay T21-T23 is DAA01C; The model of auxiliary relay J11-J13, auxiliary relay J21-J23 is RXM4AB1BD; The model of linked switch S1 and linked switch S2 is KAN-9.
Principle of work of the present utility model is:
While carrying out testing experiment, the input end of the present embodiment comes from the protective device of primary cut-out, while carrying out single-phase test, (trip mutually as example taking A), press linked switch S1, the protective device of primary cut-out sends A phase trip signal to input end A1, auxiliary relay J11 coil obtains electricly, often opens electric shock J11-1 closure, treats that the on-delay time of time relay T11 arrives, normally closed electric shock T11-1 disconnects, and then sends trip signal to relay-protection tester; While carrying out three-phase test (taking three-phase combined floodgate as example); press linked switch S2; the protective device of primary cut-out sends three-phase switching signal to input end H; auxiliary relay J21-J23 coil all electric, often open electric shock J21-1, J22-1, J23-1 all closed, treat that the on-delay time of time relay T21-T23 arrives; often open electric shock T21-1, T22-1, T23-1 closure, then send switching signal to relay-protection tester.
Foregoing description only proposes as the enforceable technical scheme of the utility model, not as the Single restriction condition to its technical scheme itself.
Claims (2)
1. a three-phase portable simulation isolating switch, is characterized in that: it comprises trip unit (1) and combined floodgate unit (2); Described trip unit (1) is made up of time relay T11-T13, auxiliary relay J11-J13, resistance R 11-R13, linked switch S1 and linked switch S2; Coil one tunnel of described auxiliary relay J11-J13 meets respectively A phase trip signal input end A1, B phase trip signal input end B1, C phase trip signal input end C1, and another road all meets three-phase trip signal input end T simultaneously; The coil of often opening electric shock J11-1, time relay T11 of the normal battle of described linked switch S1, the normally closed point of linked switch S2, auxiliary relay J11 connect successively after between be connected on+24V and ground, after the coil series connection of often opening electric shock J12-1, time relay T12 of described auxiliary relay J12, be connected between the normally closed point and the described node b and ground that often opens electric shock J11-1 of linked switch S2, after the coil series connection of often opening electric shock J13-1, time relay T13 of described auxiliary relay J13, be connected between described node b and ground; After the normally closed electric shock T11-1 series connection of described resistance R 11, time relay T11, between be connected on+24V and ground, its node is A phase trip signal output terminals A T; For after the normally closed electric shock T12-1 series connection of described resistance R 12, time relay T12 between be connected on+24V and ground, its node is B phase trip signal output terminal BT; After the normally closed electric shock T13-1 series connection of described resistance R 13, time relay T13, between be connected on+24V and ground, its node is C phase trip signal output terminal CT;
Described combined floodgate unit (2) is identical with trip unit (1) structure, and combined floodgate unit (2) are made up of time relay T21-T23, auxiliary relay J21-J23, resistance R 21-R23, linked switch S1 and linked switch S2; Coil one tunnel of described auxiliary relay J21-J23 meets respectively A signal input part A2, B signal input part B2, the C signal input part C2 that closes a floodgate mutually that closes a floodgate mutually that closes a floodgate mutually, and another road all meets three-phase switching signal input end H simultaneously; The output terminal of described combined floodgate unit (2) is respectively A signal output part AH, B signal output part AH, the C signal output part AH that closes a floodgate mutually that closes a floodgate mutually that closes a floodgate mutually.
2. a kind of three-phase portable simulation isolating switch according to claim 1, is characterized in that: the model of described time relay T11-T13, time relay T21-T23 is DAA01C; The model of described auxiliary relay J11-J13, auxiliary relay J21-J23 is RXM4AB1BD; The model of described linked switch S1 and linked switch S2 is KAN-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339646.8U CN203981797U (en) | 2014-06-23 | 2014-06-23 | A kind of three-phase portable simulation isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339646.8U CN203981797U (en) | 2014-06-23 | 2014-06-23 | A kind of three-phase portable simulation isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203981797U true CN203981797U (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420339646.8U Withdrawn - After Issue CN203981797U (en) | 2014-06-23 | 2014-06-23 | A kind of three-phase portable simulation isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203981797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020382A (en) * | 2014-06-23 | 2014-09-03 | 国网河北省电力公司衡水供电分公司 | Three-phase portable simulation circuit breaker |
-
2014
- 2014-06-23 CN CN201420339646.8U patent/CN203981797U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020382A (en) * | 2014-06-23 | 2014-09-03 | 国网河北省电力公司衡水供电分公司 | Three-phase portable simulation circuit breaker |
| CN104020382B (en) * | 2014-06-23 | 2016-04-06 | 国网河北省电力公司衡水供电分公司 | A kind of three-phase portable simulation isolating switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20160406 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |