CN204012911U - A kind of transformer station direct current system with electric discharge bypass functionality - Google Patents

A kind of transformer station direct current system with electric discharge bypass functionality Download PDF

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Publication number
CN204012911U
CN204012911U CN201420439678.5U CN201420439678U CN204012911U CN 204012911 U CN204012911 U CN 204012911U CN 201420439678 U CN201420439678 U CN 201420439678U CN 204012911 U CN204012911 U CN 204012911U
Authority
CN
China
Prior art keywords
electric discharge
shunting
bus
batteries
connects
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
CN201420439678.5U
Other languages
Chinese (zh)
Inventor
迟旭东
孙晓晨
王尊荣
姜岳
辛向君
刘庆
陈学海
位韶康
王丽萍
刘秉娥
金延文
吕志远
刘亭亭
王军波
王震宁
郭富胜
林祥舰
张福祥
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.)
State Grid Corp of China SGCC
Yantai Power Supply Co of State Grid Shandong Electric Power Co
Original Assignee
State Grid Corp of China SGCC
Yantai Power Supply Co of State Grid Shandong Electric Power Co
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 State Grid Corp of China SGCC, Yantai Power Supply Co of State Grid Shandong Electric Power Co filed Critical State Grid Corp of China SGCC
Priority to CN201420439678.5U priority Critical patent/CN204012911U/en
Application granted granted Critical
Publication of CN204012911U publication Critical patent/CN204012911U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of transformer station direct current system with electric discharge bypass functionality, it comprises DC bus (1), rectification module (2), storage battery circuit switching (4), batteries (5), it is characterized in that it also comprises electric discharge shunting device (7), electric discharge device (6), electric discharge shunting device (7) comprises shunting device run indicator (7-5), diode (7-1), diode (7-2), electric discharge shunting device switch (7-3), electric discharge shunting device switch (7-4), electric discharge shunting device switch (7-3), electric discharge shunting device switch (7-4), electric discharge device (6) is connected to batteries (5) one sides of storage battery circuit switching (4), shunting device run indicator (7-5) connects DC bus (1) one side of storage battery circuit switching (4), when the utility model can guarantee to discharge, batteries does not depart from bus, guarantee the safe operation of transformer station and electrical network, wiring is simple, workload is little, safe and reliable.

Description

A kind of transformer station direct current system with electric discharge bypass functionality
Technical field:
The utility model relates to a kind of transformer station direct current system with electric discharge bypass functionality, belongs to electric power system substation equipment maintenance and repair technical field.
Background technology:
In 18 the great anti-accident measures > of electrical network > of the < < of State Grid Corporation of China, explicitly call for: " in transformer station direct current system, new valve controlled sealed accumulator group of installing, should carry out full checking discharging test.Every 2 years, carry out one time checking discharging test later.Move 4 years later batteries, done every year checking discharging test one time.DC bus, in the operation of normal operation and change operational mode, forbids to throw off batteries." according to above-mentioned requirements, carrying out batteries while discharging and recharging experiment work, just can not disconnect batteries master switch, therefore, when carrying out batteries electric discharge, rectification module switch need be pulled open.Now by the batteries band current load of entirely standing erectly, and for there being longer batteries of potential faults or running time, because discharging current is larger, may cause the situation of the logical super-high-current of batteries, cause the overheated breaking-up of batteries, will cause full station DC supply interruption.
Utility model content:
The purpose of this utility model be to overcome the deficiency of above-mentioned prior art and provide a kind of while guaranteeing to discharge batteries do not depart from bus, guarantee the safe operation of transformer station and electrical network, wiring is simple, the transformer station direct current system with electric discharge bypass functionality that workload is little, safe and reliable.
Order of the present utility model can reach by following measure: a kind of transformer station direct current system with electric discharge bypass functionality, it comprises DC bus, DC bus connects respectively rectification module, storage battery circuit switching, rectification module connects ac bus, storage battery circuit switching connects batteries, it is characterized in that it also comprises electric discharge shunting device, storage battery circuit switching connects electric discharge device, electric discharge shunting device comprises shunting device run indicator, shunting device run indicator connects respectively diode, diode, diode connects electric discharge shunting device switch, diode connects electric discharge shunting device switch, electric discharge shunting device switch, electric discharge shunting device switch, electric discharge device is all connected to batteries one side of storage battery circuit switching by discharge test line, shunting device run indicator connects DC bus one side of storage battery circuit switching by discharge test line.
The utility model can produce following good effect compared with the prior art: the utility model had both guaranteed in 18 the great anti-accident measures > of electrical network > of < <: " DC bus of transformer station direct current system, in the operation of normal operation and change operational mode, forbids to throw off batteries." regulation, guaranteed again to have the stability of streaming system of entirely standing erectly when potential faults or running time, longer batteries broke down.When transformer station direct current system batteries is carried out discharge operation, access the utility model, can guarantee that battery pack does not depart from operation bus, and the daily load of control bus is provided by rectification module, and due to diode unilateral conduction, rectification module can not given batteries charging.And when AC power or rectification module fault, when control bus voltage needs only a little less than accumulator battery voltage, batteries to control bus uninterrupted power supply, is guaranteed the safe operation of transformer station and electrical network through the utility model.The utility model also can pass through lamplight pointing, confirms that wiring is correct, and the utility model also can have battery cross-over connection effect concurrently simultaneously, and the device that only damages battery as short circuit list is used.In addition the utility model wiring is simple, and workload is less, safe and reliable.
Accompanying drawing explanation:
Fig. 1 is structured flowchart of the present utility model.
Embodiment: preferred forms of the present utility model is elaborated below in conjunction with accompanying drawing:
Embodiment: a kind of transformer station direct current system (referring to Fig. 1) with electric discharge bypass functionality, it comprises DC bus 1, DC bus 1 connects respectively rectification module 2, storage battery circuit switching 4, rectification module 2 connects ac bus 3, storage battery circuit switching 4 connects respectively batteries 5, electric discharge device 6, electric discharge shunting device 7 comprises shunting device run indicator 7-5, shunting device run indicator 7-5 connects respectively diode 7-1, diode 7-2 attaches dimension fin, diode 7-1 connects electric discharge shunting device switch 7-3, diode 7-2 connects electric discharge shunting device switch 7-4, electric discharge shunting device switch 7-3, electric discharge shunting device switch 7-4, electric discharge device 6 is all connected to batteries 5 one sides of storage battery circuit switching 4 by discharge test line 9, shunting device run indicator 7-5 connects DC bus 1 one sides of storage battery circuit switching 4 by discharge test line 8.
When batteries is discharged work, close electric discharge shunting device switch 7-3 and electric discharge shunting device switch 7-4, disconnect storage battery circuit switching 4.Now rectification module 2 works on, but due to the non-return effect of diode 7-1 and diode 7-2, rectification module 2 can only be DC bus 1 charging, and cannot be to batteries 5 chargings.The close switch of electric discharge device 6, adjusts suitable electric current and starts batteries to discharge.If ac bus 3 or rectification module 2 break down, DC bus 1 lower voltage, batteries 5 is discharged to DC bus 1 through the diode of electric discharge shunting device 7, ensures the stream supply load demand of entirely standing erectly.

Claims (1)

  1. One kind have electric discharge bypass functionality transformer station direct current system, it comprises DC bus (1), DC bus (1) connects respectively rectification module (2), storage battery circuit switching (4), rectification module (2) connects ac bus (3), storage battery circuit switching (4) connects batteries (5), it is characterized in that it also comprises electric discharge shunting device (7), storage battery circuit switching (4) connects electric discharge device (6), electric discharge shunting device (7) comprises shunting device run indicator (7-5), shunting device run indicator (7-5) connects respectively diode (7-1), diode (7-2), diode (7-1) connects electric discharge shunting device switch (7-3), diode (7-2) connects electric discharge shunting device switch (7-4), electric discharge shunting device switch (7-3), electric discharge shunting device switch (7-4), electric discharge device (6) is all connected to batteries (5) one sides of storage battery circuit switching (4) by discharge test line (9), shunting device run indicator (7-5) connects DC bus (1) one side of storage battery circuit switching (4) by discharge test line (8).
CN201420439678.5U 2014-08-06 2014-08-06 A kind of transformer station direct current system with electric discharge bypass functionality Expired - Fee Related CN204012911U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420439678.5U CN204012911U (en) 2014-08-06 2014-08-06 A kind of transformer station direct current system with electric discharge bypass functionality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420439678.5U CN204012911U (en) 2014-08-06 2014-08-06 A kind of transformer station direct current system with electric discharge bypass functionality

Publications (1)

Publication Number Publication Date
CN204012911U true CN204012911U (en) 2014-12-10

Family

ID=52052853

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420439678.5U Expired - Fee Related CN204012911U (en) 2014-08-06 2014-08-06 A kind of transformer station direct current system with electric discharge bypass functionality

Country Status (1)

Country Link
CN (1) CN204012911U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104201769A (en) * 2014-08-06 2014-12-10 国家电网公司 Transformer substation direct-current system having discharging bypass function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104201769A (en) * 2014-08-06 2014-12-10 国家电网公司 Transformer substation direct-current system having discharging bypass function

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20150806

EXPY Termination of patent right or utility model