CN103954908A - Fault simulation device for transformer on-load tapping switch - Google Patents
Fault simulation device for transformer on-load tapping switch Download PDFInfo
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- CN103954908A CN103954908A CN201410153856.2A CN201410153856A CN103954908A CN 103954908 A CN103954908 A CN 103954908A CN 201410153856 A CN201410153856 A CN 201410153856A CN 103954908 A CN103954908 A CN 103954908A
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Abstract
The invention relates to fault detection for transformer on-load tapping switches, in particular to a fault simulation device for the transformer on-load tapping switch. The fault simulation device comprises a relay, inductance coils and a time control single chip microcomputer. The relay is provided with a contact K1, a contact K2, a contact K3, a contact K4 and the tapping switch which can be connected and matched with all the contacts in a closed mode. The two inductance coils are arranged, on inductance coil is provided with a node (1), a node (3), a node (5), a node (7) and a node (9). The other inductance coil is provided with a node (2), a node (4), a node (6), a node (8) and a node (10). According to the fault simulation device, through changing the resistance value, different transition conditions of the on-load tapping switch are simulated, through changing and controlling switching time of the relay, the fault condition of spring aging or loosening is simulated, through switching off resistors, the fracture fault condition of the transition resistors of the on-load tapping switch is simulated, and the inductance coils can be connected to simulate the actual fault waveform of an on-site winding test.
Description
Technical field
The present invention relates to the detection of Faults of On-Load Tap-changer in Transformer, be specifically related to Faults of On-Load Tap-changer in Transformer analogue means.
Background technology
In the prior art, when Faults of On-Load Tap-changer in Transformer, generally to adopt on-load tap changer tester to carry out on-the-spot test, but while carrying out on-the-spot test due to on-load shunting switch tester, can not effectively analyze its real malfunction, while carrying out on-the-spot test with on-load tap changer tester, on-the-spot situation complexity is various, the fault waveform testing out is also not quite similar, and the tester for lacking corresponding experience, just can not effectively analyze real malfunction.
Therefore be necessary it to carry out simulation test, find the malfunction corresponding with on-the-spot test, thereby judge more accurately the trouble spot of on-the-spot test.
Summary of the invention
The object of the present invention is to provide a kind of Faults of On-Load Tap-changer in Transformer analogue means, solving and directly with on-load tap changer tester, testing Faults of On-Load Tap-changer in Transformer in prior art is the problem that cannot accurately find trouble spot.
For solving above-mentioned technical matters, the present invention is by the following technical solutions: a kind of Faults of On-Load Tap-changer in Transformer analogue means, comprise relay, telefault and time control single chip computer, described relay is with contact K1, contact K2, K3He contact, contact K4, and the shunting switch that can be connected with aforementioned each closing of contact cooperation; Described telefault has two, on one of them telefault, be divided into node 1, node 3, node 5, node 7 and node 9, on another telefault, be divided into node 2, node 4, node 6, node 8 and node 10, described contact K1 is connected to node 5, after contact K2 serial connection transition resistance R1, be connected to node 5, after contact K3 serial connection transition resistance R2, be connected to node 4, contact K4 is connected to node 4, and described node 1, node 4 and node 5 are all connected to output bus.
Further technical scheme is, the resistance of described transition resistance R1 and transition resistance R2 is 1-40 ohm.
Further technical scheme is, described relay is HF-115F, the Transformer Winding that telefault is 50KVA, time control single chip computer STC90C51RD+.
Compared with prior art, the invention has the beneficial effects as follows: the most crucial method of this unit simulation fault is to set up the running environment that approaches real shunting switch, can simulate the transition situation of different shunting switchs by changing the size of resistance, by changing, simulate the aging or loosening failure condition of spring the switching time of pilot relay, by resistance being disconnected to the failure condition of simulation shunting switch transition resistance fracture, and can connect the true fault waveform of telefault simulated field band winding test.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of shunting switch of the present invention while being transitioned into node 4.
Fig. 2 is the schematic diagram of shunting switch transition of the present invention during the middle moment.
Fig. 3 is the schematic diagram that shunting switch of the present invention has been transitioned into node 5.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1, Fig. 2 and Fig. 3 show an embodiment of a kind of Faults of On-Load Tap-changer in Transformer analogue means of the present invention: a kind of Faults of On-Load Tap-changer in Transformer analogue means, comprise relay, telefault and time control single chip computer, described relay is with contact K1, contact K2, K3He contact, contact K4, and the shunting switch that can be connected with aforementioned each closing of contact cooperation; Described telefault has two, on one of them telefault, be divided into node 1, node 3, node 5, node 7 and node 9, on another telefault, be divided into node 2, node 4, node 6, node 8 and node 10, described contact K1 is connected to node 5, after contact K2 serial connection transition resistance R1, be connected to node 5, after contact K3 serial connection transition resistance R2, be connected to node 4, contact K4 is connected to node 4, and described node 1, node 4 and node 5 are all connected to output bus.
A kind of Faults of On-Load Tap-changer in Transformer analogue means preferred embodiment according to the present invention, the resistance of described transition resistance R1 and transition resistance R2 is 1-40 ohm.
A kind of Faults of On-Load Tap-changer in Transformer analogue means preferred embodiment according to the present invention, described relay is HF-115F, the Transformer Winding that telefault is 50KVA, time control single chip computer STC90C51RD+.
The present invention is that time control single chip computer directly controls by IO mouth the relay that transition is switched, and telefault is concatenated in commutation circuit, and the sequence of movement of relay is followed successively by K1, K2, K3, K4.When K1, K2 are closed, circuit is by R1 short circuit, K1 is concatenated into resistance R 1 in circuit while disconnecting K2 closure, place in circuit after two transition resistance R1, R2 parallel connection when K2, K3 are simultaneously closed, K2 disconnects, K3 is concatenated into resistance R 2 in circuit when closed, when K3, the K4 while is closed, by resistance R 2 short circuits, now shunting switch is completed by the transition of 4-5 tap.
Claims (3)
1. a Faults of On-Load Tap-changer in Transformer analogue means, it is characterized in that: comprise relay, telefault and time control single chip computer, described relay is with contact K1, contact K2, K3He contact, contact K4, and the shunting switch that can be connected with aforementioned each closing of contact cooperation; Described telefault has two, on one of them telefault, be divided into node 1, node 3, node 5, node 7 and node 9, on another telefault, be divided into node 2, node 4, node 6, node 8 and node 10, described contact K1 is connected to node 5, after contact K2 serial connection transition resistance R1, be connected to node 5, after contact K3 serial connection transition resistance R2, be connected to node 4, contact K4 is connected to node 4, and described node 1, node 4 and node 5 are all connected to output bus.
2. Faults of On-Load Tap-changer in Transformer analogue means according to claim 1, is characterized in that: the resistance of described transition resistance R1 and transition resistance R2 is 1-40 ohm.
3. Faults of On-Load Tap-changer in Transformer analogue means according to claim 1, is characterized in that: described relay is: HF-115F, the Transformer Winding that telefault is 50KVA, time control single chip computer STC90C51RD+.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153856.2A CN103954908A (en) | 2014-04-16 | 2014-04-16 | Fault simulation device for transformer on-load tapping switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153856.2A CN103954908A (en) | 2014-04-16 | 2014-04-16 | Fault simulation device for transformer on-load tapping switch |
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| Publication Number | Publication Date |
|---|---|
| CN103954908A true CN103954908A (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410153856.2A Pending CN103954908A (en) | 2014-04-16 | 2014-04-16 | Fault simulation device for transformer on-load tapping switch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362485A (en) * | 2018-01-15 | 2018-08-03 | 国网江苏省电力公司检修分公司特高压交直流运检中心 | A kind of change of current becomes tap switch typical machine fault simulation system and failure simulation method |
| CN108828439A (en) * | 2018-06-01 | 2018-11-16 | 国网江苏省电力有限公司南京供电分公司 | A kind of emulation of load ratio bridging switch transition resistance failure and diagnostic method and system |
| CN109633425A (en) * | 2018-11-27 | 2019-04-16 | 国网江苏省电力有限公司检修分公司 | A kind of dry-type transformer vacuum on-load operation switch acting characteristic simulator |
Citations (5)
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|---|---|---|---|---|
| CN2279615Y (en) * | 1996-09-13 | 1998-04-22 | 张正平 | Comprehensive testing instrument for on-load tap changer of power transformer |
| CN101958195A (en) * | 2010-09-19 | 2011-01-26 | 中国农业大学 | Arc-less on-load tap-changer for transformer |
| US20110148423A1 (en) * | 2000-02-17 | 2011-06-23 | Pass & Seymour, Inc. | Protective device with automated self-test |
| CN202795858U (en) * | 2012-09-25 | 2013-03-13 | 浙江省电力公司电力科学研究院 | On-load tap-changer simulation device of transformer |
| CN203825163U (en) * | 2014-04-16 | 2014-09-10 | 国家电网公司 | Fault simulation device for on-load tap-changer of transformer |
-
2014
- 2014-04-16 CN CN201410153856.2A patent/CN103954908A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2279615Y (en) * | 1996-09-13 | 1998-04-22 | 张正平 | Comprehensive testing instrument for on-load tap changer of power transformer |
| US20110148423A1 (en) * | 2000-02-17 | 2011-06-23 | Pass & Seymour, Inc. | Protective device with automated self-test |
| CN101958195A (en) * | 2010-09-19 | 2011-01-26 | 中国农业大学 | Arc-less on-load tap-changer for transformer |
| CN202795858U (en) * | 2012-09-25 | 2013-03-13 | 浙江省电力公司电力科学研究院 | On-load tap-changer simulation device of transformer |
| CN203825163U (en) * | 2014-04-16 | 2014-09-10 | 国家电网公司 | Fault simulation device for on-load tap-changer of transformer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362485A (en) * | 2018-01-15 | 2018-08-03 | 国网江苏省电力公司检修分公司特高压交直流运检中心 | A kind of change of current becomes tap switch typical machine fault simulation system and failure simulation method |
| CN108828439A (en) * | 2018-06-01 | 2018-11-16 | 国网江苏省电力有限公司南京供电分公司 | A kind of emulation of load ratio bridging switch transition resistance failure and diagnostic method and system |
| CN108828439B (en) * | 2018-06-01 | 2021-06-25 | 国网江苏省电力有限公司南京供电分公司 | Method and system for simulating and diagnosing transition resistance fault of on-load tap-changer |
| CN109633425A (en) * | 2018-11-27 | 2019-04-16 | 国网江苏省电力有限公司检修分公司 | A kind of dry-type transformer vacuum on-load operation switch acting characteristic simulator |
| CN109633425B (en) * | 2018-11-27 | 2020-12-01 | 国网江苏省电力有限公司检修分公司 | Action characteristic simulation device for vacuum on-load tap-changer of dry-type transformer |
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Application publication date: 20140730 |