CN202949213U - Auxiliary protection device for remote tripping judgment - Google Patents

Auxiliary protection device for remote tripping judgment Download PDF

Info

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
Authority
CN
China
Prior art keywords
protection device
transformer
voltage
far away
auxiliary protection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220634788
Other languages
Chinese (zh)
Inventor
孙爱民
薛国帧
江海燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Magang Group Holding Co Ltd
Maanshan Iron and Steel Co Ltd
Original Assignee
Magang Group Holding Co Ltd
Maanshan Iron and Steel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Magang Group Holding Co Ltd, Maanshan Iron and Steel Co Ltd filed Critical Magang Group Holding Co Ltd
Priority to CN 201220634788 priority Critical patent/CN202949213U/en
Application granted granted Critical
Publication of CN202949213U publication Critical patent/CN202949213U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Protection Of Transformers (AREA)

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

The auxiliary protection device that a kind of transfer trip is differentiated
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.
Jumping device 4 far away described above also is connected with current transformer 5 and voltage transformer 6, and current transformer 5 arranges near main transformer 1 high side switch 7, and voltage transformer 6 arranges near 110kV voltage bus 2.
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).
CN 201220634788 2012-11-27 2012-11-27 Auxiliary protection device for remote tripping judgment Expired - Fee Related CN202949213U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CA2880635A1 (en) Method for analyzing operation state of substation by combining whole grid model with local grid model
CN107294073B (en) Control protection system of hybrid topology direct current circuit breaker
CN202949213U (en) Auxiliary protection device for remote tripping judgment
CN202949138U (en) Low-voltage cable branch box
CN201690203U (en) Vehicle static debugging power supply device for urban rail
CN204886390U (en) High pressure dual power supply's wiring circuit
CN202363377U (en) Electric leakage breaker capable of providing continuous working power supply
CN203301227U (en) Uninterrupted power supply (UPS) automatic switching device
CN102508101A (en) Power cable operation fault monitoring terminal and system for detecting short circuit
CN201828639U (en) Signal cable insulation testing device
CN203466140U (en) Simulation fuse
CN203166444U (en) Overhead transmission line with demarcation load switch
CN204086378U (en) The substation transformer neutral line is current detecting prior-warning device over the ground
CN103474297B (en) Simulated fuse protector
CN204258428U (en) A kind of mobile wheelbarrow switch type power supply vehicle of meet an emergency switch cubicle
CN203983963U (en) Motor security of operation protective circuit
CN202602261U (en) Arc flash protection device in electric control cabinet of wind driven generator
CN204243482U (en) The quick distribution box of Multifunctional mobile
CN203674700U (en) Photoelectric arc light protection system
RU110875U1 (en) OPEN DISTRIBUTION DEVICE
CN204067886U (en) Switch cubicle rectifier bridge
CN203135585U (en) Four-in-one device integrating functions of protection, control, measurement and reactive power switch and used for transformer substation
CN201674280U (en) Earth leakage protective device having remote communication function
CN202333891U (en) Transformer substation direct current storage battery online test and nuclear capacity discharge device
CN202996642U (en) Intermediate high-voltage cabinet circuit breaker electric protection interlocking device

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