CN203838310U - Electric isolation knife switch secondary circuit testing device - Google Patents
Electric isolation knife switch secondary circuit testing device Download PDFInfo
- Publication number
- CN203838310U CN203838310U CN201420234215.5U CN201420234215U CN203838310U CN 203838310 U CN203838310 U CN 203838310U CN 201420234215 U CN201420234215 U CN 201420234215U CN 203838310 U CN203838310 U CN 203838310U
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- CN
- China
- Prior art keywords
- phase
- secondary circuit
- relay
- isolation knife
- switch
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- Expired - Fee Related
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Abstract
An electric isolation knife switch secondary circuit testing device is composed of four alternating-current input terminals, a three-phase alternating-current air switch, three control output terminals, six phase detection terminals, a red light HD, a green light LD, and two relays K1 and K2. G1 ends of the control output terminals are connected with a remote control common end of an isolation knife switch electric-operating mechanism, G3 ends are connected with a remote control switching-on end, and G33 ends are connected with a remote control switching-off end. The phase detection terminals are connected with the upper end of a motor secondary circuit air switch and an opposite-end secondary line for throwing away motor body wiring. The alternating-current input terminals are connected with an external power supply. Test is performed after the alternating-current air switch QF is switched on and a switching-on button and a switching-off button are pressed. By using the device to test an electric isolation knife switch secondary circuit, electric switching-on/off incapability due to various faults of the secondary circuit can be avoided, correct operation of an isolation knife switch is ensured, the maintenance cycle of an electric isolation knife switch is shortened, the range and time of power outage are reduced, and stable operation of a power system is guaranteed.
Description
Technical field
The utility model relates to a kind of electronic isolation switch secondary circuit proving installation, belongs to comprehensive automation of electric power system unit check field.
Background technology
Isolation switch is a kind of major equipment being used in conjunction with isolating switch in transformer station, electric line, and along with the extensive implementation of the more and more higher and unattended station of grid automation degree, increasing electric knife gate puts into operation in electrical network.Isolation switch is bus isolation switch particularly, both belonged to equipment in switch gap, also be connected with bus, maintenance bus isolation switch should bus power failure also want switch gap to have a power failure, this has brought sizable difficulty just to maintenance bus isolation switch, particularly when the isolation switch motor drive mechanism fault of bus charging operation, and cannot demonstration test, make a lot of electronic isolation switch in abnomal condition, bring very large hidden danger to operation of power networks.Meanwhile, electronic isolation switch secondary circuit components and parts are many, and any components and parts fault all will cause normally divide-shut brake, while particularly processing this type of fault, change components and parts and cannot test.
Present stage, electronic isolation switch secondary circuit is tested to the blank that always has equipment and technology, there is no special proving installation.In newly-built transformer station, be all generally that while by the time all having connect secondary line, disconnecting link is hand to centre position, then carries out remote control test, timesharing effort, accidentally causes burn-down of electric motor.And moving transformer station, and while changing electric knife gate or treatment loop fault, generally can not test, as complete test, need bus to have a power failure, change the method for operation, cause unnecessary potential safety hazard.The particularly electronic isolation switch of 110kV and above, the bus difficulty especially that has a power failure, or power off time is short especially, if do not carried out this test, will have a strong impact on the safe operation of electrical network or cause that power off time is long, power failure range expands.In a word, once electronic isolation switch secondary circuit loop existing problems will cause the harm of following three aspects.(1) when remote control is tested, as loop mistake, easily cause burn-down of electric motor, components and parts damage.(2) can not check that whether its secondary circuit wiring is correct, the front pre-control of the accident of cannot accomplishing; (3) waste a large amount of human and material resources, time.If can be according to on-the-spot actual, a kind of proving installation of utility model verifies that electronic isolation switch secondary circuit correctness is a very important problem.
Summary of the invention
For fear of above various shortcoming, the utility model proposes a kind of safe and reliable electronic isolation switch secondary circuit proving installation, this proving installation is simple to operate, can overhaul electronic isolation switch secondary circuit, can accomplish the pre-control before accident, ensure the safe and stable operation of electrical network.
The technical scheme that solution the utility model problem adopts is: this proving installation is made up of four AC input terminals, a three-phase alternating current air switch, three control output end, six phase-detection terminals, red light HD, a green light LD, two relay K 1, K2, and wherein the N terminal of AC input terminal connects the sub-G1 in control output end through stop button; Phase-detection terminal U1 one end connects alternating current air switch upper end, the other end connects the sub-G3 in control output end through switch knob, relay K 1 coil, connect the sub-G33 in control output end through opening button, relay K 2 coils, phase-detection terminal V1, W1 connect respectively alternating current air switch upper end; The first excitation normal opened contact on relay K 1, K2 connects through phase-detection terminal U2, the second excitation normal opened contact on relay K 1, K2 connects through phase-detection terminal V2, and the 3rd excitation normal opened contact on relay K 1, K2 connects through phase-detection terminal W2; Red light string is in closing circuit, and green light string is in sub-gate circuit.
Good effect of the present utility model is: can check electronic isolation switch secondary circuit correctness, particularly divide-shut brake motor phase sequence; In the time that disconnecting link is safeguarded in reorganization and expansion, bus charging operation, cannot actual electric operating time, by this proving installation, can verify electronic isolation switch secondary circuit correctness, has ensured the electrically operated correctness of isolation switch of access operation electrical network; Can overhaul electronic isolation switch secondary circuit, avoid various mistakes; Also can in the time that disconnecting link does not install, test, shorten the power off time of isolation switch, improve efficiency, ensure the stable operation of electric system.
Brief description of the drawings
Fig. 1 is test principle schematic diagram of the present utility model; Fig. 2 is conventional electronic isolation switch control and electric motor loop figure.
Embodiment
As shown in Figure 1, this proving installation is made up of four AC input terminals, a three-phase alternating current air switch, three control output end, six phase-detection terminals, a red light, a green light, two relays, AC input terminal U terminal 19 is connected with 1 end of alternating current air switch 16, V terminal 20 is connected with 3 ends of alternating current air switch 16, W terminal 21 is connected with 5 ends of alternating current air switch 16, and N terminal 18 is connected with 1 end of stop button 4; The sub-G1 terminal 6 in control output end is connected with 2 ends of stop button 3, G3 terminal 7 and relay K
1one end of 5 coils is connected, G33 terminal 9 and relay K
2one end of 8 coils is connected; Phase-detection terminal U
1terminal 13 is connected with 2 ends of alternating current air switch 16, V
1terminal 14 is connected with 4 ends of alternating current air switch 16, W
1terminal 15 is connected with 6 ends of alternating current air switch 16; Phase-detection terminal U
2terminal 10 and relay K
15 excitation normal opened contact 1 end is connected, wherein relay K
15 excitation normal opened contact 1 end and relay K
2excitation normal opened contact 1 end be connected; Phase-detection terminal V
2terminal 11 and relay K
15 excitation normal opened contact end is connected, wherein relay K
18 excitation normal opened contact 3 ends and relay K
2excitation normal opened contact 3 ends be connected; Phase-detection terminal W
2terminal 12 and relay K
15 excitation normal opened contact 5 ends are connected, wherein relay K
15 excitation normal opened contact 5 ends and relay K
28 excitation normal opened contact 5 ends are connected.
Its test method is:
(1) AC input terminal U, the V in Fig. 1, W, N access outside terminal case power supply;
(2) the sub-G1 in the control output end in Fig. 1, G3, G33 are connected with G1, G3, G33 terminal in Fig. 2;
(3) the phase-detection terminal U1 in Fig. 1, V1, W1 are connected with U1, V1, W1 terminal in Fig. 2;
(4) in Fig. 2, U2, V2, W2 terminal motor side are taken apart, get rid of motor;
(5) the phase-detection terminal U2 in Fig. 1, V2, W2 are connected with U2, V2, W2 terminal in Fig. 2;
(6) alternating current air switch 16 that closes;
(7) press switch knob HA 3, expression electric motor loop as bright in red light 17, phase sequence are correct, otherwise should search reason, until when red;
(8) press opening button FA 2, the bright expression motor of green light 1 sub-gate circuit is correct, otherwise should search reason, until green light.
(9), in process of the test, as needs stop, pressing stop button TA 4.
(10) remove test connection, recover motor side wiring, test complete.
(11) according to above traffic lights instruction, judge electronic isolation switch secondary circuit correct.
Claims (1)
1. an electronic isolation switch secondary circuit proving installation, it is characterized in that: it is made up of four AC input terminals, a three-phase alternating current air switch, three control output end, six phase-detection terminals, red light HD, a green light LD, two relay K 1, K2, wherein the N terminal of AC input terminal connects the sub-G1 in control output end through stop button; Phase-detection terminal U1 one end connects alternating current air switch upper end, the other end connects the sub-G3 in control output end through switch knob, relay K 1 coil, connect the sub-G33 in control output end through opening button, relay K 2 coils, phase-detection terminal V1, W1 connect respectively alternating current air switch upper end; The first excitation normal opened contact on relay K 1, K2 connects through phase-detection terminal U2, the second excitation normal opened contact on relay K 1, K2 connects through phase-detection terminal V2, and the 3rd excitation normal opened contact on relay K 1, K2 connects through phase-detection terminal W2; Red light string is in closing circuit, and green light string is in sub-gate circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420234215.5U CN203838310U (en) | 2014-05-08 | 2014-05-08 | Electric isolation knife switch secondary circuit testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420234215.5U CN203838310U (en) | 2014-05-08 | 2014-05-08 | Electric isolation knife switch secondary circuit testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838310U true CN203838310U (en) | 2014-09-17 |
Family
ID=51516134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420234215.5U Expired - Fee Related CN203838310U (en) | 2014-05-08 | 2014-05-08 | Electric isolation knife switch secondary circuit testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203838310U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983914A (en) * | 2014-05-08 | 2014-08-13 | 国网河南省电力公司商丘供电公司 | Testing device and method for secondary circuit of electric isolating knife switch |
| CN109188263A (en) * | 2018-09-18 | 2019-01-11 | 湖南长高高压开关有限公司 | A kind of high voltage isolator AC/DC voltage regulating power supply test operation secondary circuit system |
-
2014
- 2014-05-08 CN CN201420234215.5U patent/CN203838310U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983914A (en) * | 2014-05-08 | 2014-08-13 | 国网河南省电力公司商丘供电公司 | Testing device and method for secondary circuit of electric isolating knife switch |
| CN103983914B (en) * | 2014-05-08 | 2017-05-10 | 国家电网公司 | Testing device and method for secondary circuit of electric isolating knife switch |
| CN109188263A (en) * | 2018-09-18 | 2019-01-11 | 湖南长高高压开关有限公司 | A kind of high voltage isolator AC/DC voltage regulating power supply test operation secondary circuit system |
| CN109188263B (en) * | 2018-09-18 | 2024-03-26 | 湖南长高高压开关有限公司 | High-voltage isolating switch AC/DC voltage regulation power supply test operation secondary circuit system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20150508 |
|
| EXPY | Termination of patent right or utility model |