CN202949213U - Auxiliary protection device for remote tripping judgment - Google Patents
Auxiliary protection device for remote tripping judgment Download PDFInfo
- Publication number
- CN202949213U CN202949213U CN 201220634788 CN201220634788U CN202949213U CN 202949213 U CN202949213 U CN 202949213U CN 201220634788 CN201220634788 CN 201220634788 CN 201220634788 U CN201220634788 U CN 201220634788U CN 202949213 U CN202949213 U CN 202949213U
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- protection device
- transformer
- voltage
- far away
- auxiliary protection
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Abstract
The utility model discloses an auxiliary protection device for remote tripping judgment. The auxiliary protection device is characterized by comprising a transformer protection device, a line protection device and two remote tripping devices. The transformer protection device is connected with the remote tripping devices through cables, the line protection device is connected with the remote tripping devices through cables, and the remote tripping devices are connected with each other through fiber channels. By means of the auxiliary protection device for remote tripping judgment, influences caused by faults of a main transformer body are effectively reduced, and device faults in larger ranges are avoided.
Description
Technical field
The utility model belongs to protection equipment for transformer, and concrete is a kind of auxiliary protection device of high side switch transfer trip.
Background technology
Under the line-transformer-connection mode, work as power transformer interior fault, require the mains side circuit breaker trip after differential protection action or protection action.For catastrophe failure, differential protection action, the supply side protection may be moved, and if the protection action if timely deenergization just only has the wait fault progression, until the mains side protection is moved, has extended fault time, make fault spread.
Summary of the invention
In order to solve under the line-transformer-connection mode, when transformer protection is moved, in time cut off the electricity supply, avoid accident impact that the deferred action of higher level's route protection causes to enlarge words
The auxiliary protection device that problem, the utility model provide a kind of transfer trip to differentiate, the technical solution of the utility model is as follows:
The auxiliary protection device that a kind of transfer trip is differentiated; it is characterized in that: it comprises voltage device protective device, line protective devices, two devices of jumping far away; described voltage device protective device is connected with the device of jumping far away by cable; line protective devices are connected with the device of jumping far away by cable, and two far away jumpings between device are connected by optical-fibre channel.
Jumping device far away described above also is connected with current transformer and voltage transformer, and current transformer arranges near the main transformer high side switch, and voltage transformer arranges near the 110kV voltage bus.
When main transformer breaks down, at first current transformer and voltage transformer monitor the abnormal of electric current and voltage, and signal is transferred to one of them device of jumping far away, far jumps device analysis, send instruction to line protective devices, line protective devices send trip command to the high side switch open circuit; Simultaneously signal is transferred to another jumping device far away, then sends instruction by it, voltage protection starts.
The auxiliary protection device that adopts transfer trip described in the utility model to differentiate effectively reduces the impact that the main transformer body fault produces, and avoids equipment fault in larger scope.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1, main transformer, 2, the 110KV voltage bus, 3, the voltage device protective device, 4, far jump device, 5, current transformer, 6, voltage transformer, 7, high side switch, 8, line protective devices.
Embodiment
Referring to accompanying drawing; the auxiliary protection device that a kind of transfer trip is differentiated; be characterized in: it comprises voltage device protective device 3, line protective devices 8, two devices 4 of jumping far away; described voltage device protective device 3 is connected with the device 4 of jumping far away by cable; line protective devices 8 are connected with the device 4 of jumping far away by cable, and two far away jumpings between device 4 are connected by optical-fibre channel.
The auxiliary protection device that adopts transfer trip described in the utility model to differentiate effectively reduces the impact that the main transformer body fault produces, and avoids equipment fault in larger scope.
Claims (2)
1. the auxiliary protection device differentiated of a transfer trip; it is characterized in that: it comprises voltage device protective device (3), line protective devices (8), two devices (4) of jumping far away; described voltage device protective device (3) is connected with the device (4) of jumping far away by cable; line protective devices (8) are connected with the device (4) of jumping far away by cable, and two far away jumpings between device (4) are connected by optical-fibre channel.
2. the auxiliary protection device differentiated of transfer trip according to claim 1; it is characterized in that: far jump device (4) and also be connected with current transformer (5) and voltage transformer (6); current transformer (5) arranges near main transformer (1) high side switch (7), and voltage transformer (6) arranges near 110kV voltage bus (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220634788 CN202949213U (en) | 2012-11-27 | 2012-11-27 | Auxiliary protection device for remote tripping judgment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220634788 CN202949213U (en) | 2012-11-27 | 2012-11-27 | Auxiliary protection device for remote tripping judgment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202949213U true CN202949213U (en) | 2013-05-22 |
Family
ID=48424893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220634788 Expired - Fee Related CN202949213U (en) | 2012-11-27 | 2012-11-27 | Auxiliary protection device for remote tripping judgment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202949213U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098739A (en) * | 2015-09-09 | 2015-11-25 | 南京国电南自电网自动化有限公司 | Partition differential method for connection mode for line transformer bank |
-
2012
- 2012-11-27 CN CN 201220634788 patent/CN202949213U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098739A (en) * | 2015-09-09 | 2015-11-25 | 南京国电南自电网自动化有限公司 | Partition differential method for connection mode for line transformer bank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Qian Inventor after: Zhao Boshi Inventor before: Sun Aimin Inventor before: Xue Guozheng Inventor before: Jiang Haiyan |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SUN AIMIN XUE GUOZHEN JIANG HAIYAN TO: XU QIAN ZHAO BOSHI |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20211127 |