CN202586338U - Movable temporary DC screen - Google Patents

Movable temporary DC screen Download PDF

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Publication number
CN202586338U
CN202586338U CN 201220214579 CN201220214579U CN202586338U CN 202586338 U CN202586338 U CN 202586338U CN 201220214579 CN201220214579 CN 201220214579 CN 201220214579 U CN201220214579 U CN 201220214579U CN 202586338 U CN202586338 U CN 202586338U
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CN
China
Prior art keywords
power supply
screen
direct current
bus
supply bus
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 201220214579
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Chinese (zh)
Inventor
杨卫平
邹长敏
张建勇
朱伯涛
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 Hebei Electric Power Co Ltd
Xingtai Power Supply Co of State Grid Hebei Electric Power Co Ltd
State Grid Corp of China SGCC
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Xingtai Power Supply 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.)
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Publication date
Application filed by Xingtai Power Supply Co Ltd filed Critical Xingtai Power Supply Co Ltd
Priority to CN 201220214579 priority Critical patent/CN202586338U/en
Application granted granted Critical
Publication of CN202586338U publication Critical patent/CN202586338U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a movable temporary DC screen and relates to the technical field of power maintenance devices, which comprises a DC ammeter, a DC voltmeter, an insulation monitor and a voltage monitor. The DC ammeter is connected in series with the bus of the positive electrode of a power supply. The DC voltmeter, the insulation monitor and the voltage monitor are connected in parallel between the buses of the positive electrode and the negative electrode of the power supply. More than two sets of DC output wiring terminals are led out from the buses of the positive electrode and the negative electrode of the power supply. During the modification of a DC screen in a power substation, the DC power load is poured out by means of the movable temporary DC screen, so as to ensure the power supply of a DC system. Meanwhile, the movable temporary DC screen is provided with enough DC output wiring terminals and is impeccable in insulation monitoring and voltage monitoring function. During operation, the movable temporary DC screen can alarm in time in case of DC ground faults or voltage abnormal faults, so that people can handle the faults in time. Thus, the movable temporary DC screen is higher in both security and reliability.

Description

一种移动式临时直流屏A mobile temporary DC screen

技术领域 technical field

本实用新型涉及电力维护装置技术领域，尤其涉及一种移动式临时直流屏。 The utility model relates to the technical field of electric power maintenance devices, in particular to a mobile temporary DC screen.

背景技术 Background technique

电力变电站在直流改造时，需要利用临时直流过渡屏将直流负荷倒出，原有的临时直流过渡屏比较简陋，功能不全，在直流改造工作中如果造成接地或电压异常时没有报警信号，并且直流电输出接线端子较少，多路出线负荷压接在一个直流电输出接线端子上，操作和工作起来即不方便又不安全，很容易造成直流失电和短路。 During the DC transformation of the power substation, it is necessary to use the temporary DC transition screen to dump the DC load. The original temporary DC transition screen is relatively simple and incomplete. If there is no alarm signal when the grounding or voltage is abnormal during the DC transformation work, and the DC current There are fewer output terminals, and the loads of multiple outgoing lines are crimped on one DC output terminal, which is inconvenient and unsafe to operate and work, and it is easy to cause DC power loss and short circuit.

实用新型内容 Utility model content

本实用新型所要解决的技术问题是提供一种移动式临时直流屏，具有完善的绝缘监察和电压监察功能，安全性和可靠性较高。 The technical problem to be solved by the utility model is to provide a mobile temporary DC screen, which has perfect insulation monitoring and voltage monitoring functions, and has high safety and reliability.

为解决上述技术问题，本实用新型所采取的技术方案是：一种移动式临时直流屏，其特征在于包括直流电流表、直流电压表、绝缘监察器和电压监察器，所述直流电流表串联在正极电源母线上，所述直流电压表、绝缘监察器和电压监察器并联在正极与负极电源母线之间，正极电源母线和负极电源母线上引出两组以上直流电输出接线端子。 In order to solve the above technical problems, the technical solution adopted by the utility model is: a mobile temporary DC screen, which is characterized in that it includes a DC ammeter, a DC voltmeter, an insulation monitor and a voltage monitor, and the DC ammeter is connected in series at the positive pole On the power bus, the DC voltmeter, insulation monitor and voltage monitor are connected in parallel between the positive and negative power buses, and more than two sets of DC output terminals are drawn from the positive power bus and the negative power bus.

本实用新型的进一步方案在于：所述移动式临时直流屏还包括闪光装置，电源母线为闪光装置提供电源，闪光母线为闪光装置提供闪光信号。 A further solution of the present invention is that: the mobile temporary DC screen further includes a flash device, the power bus provides power for the flash device, and the flash bus provides flash signals for the flash device.

所述正极电源母线、负极电源母线和闪光母线分别经开关引出两组以上直流电输出接线端子。 The positive power supply bus, the negative power supply bus and the flash bus respectively lead out two or more sets of direct current output terminals through switches.

每组直流电输出接线端子中正极电源母线和负极电源母线之间设有电源指示灯，输出电源母线上开关的闭合能够控制电源指示灯的亮与灭。 A power indicator light is provided between the positive power supply busbar and the negative pole power supply busbar in each group of direct current output terminals, and the closing of the switch on the output power supply busbar can control the on and off of the power supply indicator light.

所述开关为直流空气断路器。 The switch is a DC air circuit breaker.

采用上述技术方案所产生的有益效果在于：电力变电站内的直流屏在进行改造时，可以利用所述移动式临时直流屏，将直流负荷倒出，保证直流系统供电，且所述移动式临时直流屏具有足够多的直流电输出接线端子，完善的绝缘监察和电压监察功能，在其工作中如果出现造成直流接地或电压异常时能及时报警并做出处理，安全性和可靠性较高。 The beneficial effect of adopting the above technical solution is that when the DC panel in the power substation is being transformed, the mobile temporary DC panel can be used to pour out the DC load to ensure the power supply of the DC system, and the mobile temporary DC panel The screen has enough DC output terminals, perfect insulation monitoring and voltage monitoring functions, if there is DC grounding or voltage abnormality during its work, it can alarm and deal with it in time, with high safety and reliability.

附图说明 Description of drawings

下面结合附图和具体实施方式对本实用新型作进一步详细的说明。 Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

图1是本实用新型原理框图。 Fig. 1 is a block diagram of the utility model.

具体实施方式 Detailed ways

如图1所示，一种移动式临时直流屏包括直流电流表、直流电压表、绝缘监察器和电压监察器，所述直流电流表串联在正极电源母线上，所述直流电压表、绝缘监察器和电压监察器并联在正极与负极电源母线之间； 所述移动式临时直流屏还包括闪光装置，电源母线为闪光装置提供电源，闪光母线为闪光装置提供闪光信号；所述正极电源母线、负极电源母线和闪光母线分别经开关引出两组以上直流电输出接线端子，每组直流电输出接线端子中正极电源母线和负极电源母线之间设有电源指示灯，输出电源母线上开关的闭合能够控制电源指示灯的亮与灭，为了保证所述系统的安全性，上述开关均为直流空气断路器。 As shown in Figure 1, a mobile temporary DC screen includes a DC ammeter, a DC voltmeter, an insulation monitor and a voltage monitor, the DC ammeter is connected in series on the positive power bus, and the DC voltmeter, the insulation monitor and The voltage monitor is connected in parallel between the positive and negative power supply buses; the mobile temporary DC screen also includes a flash device, the power bus provides power for the flash device, and the flash bus provides flash signals for the flash device; the positive power bus, negative power supply The bus bar and the flashing bus bar respectively lead out two or more sets of DC output terminals through switches. In each set of DC output terminals, there is a power indicator light between the positive power bus bar and the negative power bus bar. The closing of the switch on the output power bus can control the power indicator light. On and off, in order to ensure the safety of the system, the above switches are DC air circuit breakers.

电力变电站内的直流屏在进行改造时，可以利用所述移动式临时直流屏，将直流负荷倒出，保证直流系统供电，且所述移动式临时直流屏具有足够多的直流电输出接线端子，完善的绝缘监察和电压监察功能，在其工作中如果出现造成直流接地或电压异常时能及时报警并做出处理，安全性和可靠性较高。  When the DC panel in the power substation is being transformed, the mobile temporary DC panel can be used to pour out the DC load to ensure the power supply of the DC system, and the mobile temporary DC panel has enough DC output terminals, perfect It has insulation monitoring and voltage monitoring functions. If it causes DC grounding or voltage abnormality during its work, it can report to the police and deal with it in time, with high safety and reliability. the

Claims (5)

1. interim direct current cabinet of movable type; It is characterized in that comprising DC ammeter, D.C. voltmeter, insulating monitoring device and voltage monitor; Said DC ammeter is connected on the cathode power supply bus; Said D.C. voltmeter, insulating monitoring device and voltage monitor are connected in parallel between anodal and the negative power supply bus, draw two groups of above direct current output wiring terminals on cathode power supply bus and the negative power supply bus.
2. the interim direct current cabinet of a kind of movable type according to claim 1 is characterized in that the interim direct current cabinet of said movable type also comprises flasher, and power source bus is that flasher provides power supply, and the flash of light bus is that flasher provides flashing light.
3. the interim direct current cabinet of a kind of movable type according to claim 2 is characterized in that said cathode power supply bus, negative power supply bus and flash of light bus draw direct current output wiring terminal more than two groups through switch respectively.
4. the interim direct current cabinet of a kind of movable type according to claim 3; It is characterized in that being provided with power supply indicator between the cathode power supply bus and negative power supply bus in every group of direct current output wiring terminal, the closure of switch can be controlled the light on and off of power supply indicator on the out-put supply bus.
5. the interim direct current cabinet of a kind of movable type according to claim 4 is characterized in that said switch is the direct current air circuit breaker.
CN 201220214579 2012-05-14 2012-05-14 Movable temporary DC screen Expired - Fee Related CN202586338U (en)

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Application Number Priority Date Filing Date Title
CN 201220214579 CN202586338U (en) 2012-05-14 2012-05-14 Movable temporary DC screen

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114122927A (en) * 2021-12-03 2022-03-01 中国南方电网有限责任公司超高压输电公司曲靖局 Temporary power supply transfer box for communication load

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114122927A (en) * 2021-12-03 2022-03-01 中国南方电网有限责任公司超高压输电公司曲靖局 Temporary power supply transfer box for communication load

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: STATE GRID HEBEI ELECTRIC POWER COMPANY XINGTAI PO

Effective date: 20131231

Owner name: STATE ELECTRIC NET CROP.

Free format text: FORMER OWNER: XINGTAI POWER SUPPLY COMPANY

Effective date: 20131231

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 054001 XINGTAI, HEBEI PROVINCE TO: 100031 XICHENG, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20131231

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee after: State Grid Corporation of China

Patentee after: State Grid Hebei Electric Power Company

Patentee after: Xingtai Power Supply Branch of State Grid Hebei Electric Power Company

Address before: 054001, No. 318 East Street, Xinxing Road, Hebei, Xingtai

Patentee before: Xingtai Power Supply Co.

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: 20121205

Termination date: 20180514