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Power supply unit for standby power auto-switching devices of transformer substations

A power supply device and self-switching technology, applied in circuit devices, electrical components, emergency power supply arrangements, etc., to achieve the effects of fast response, convenient use, and clear control and display

Inactive Publication Date: 2013-01-30
HULUDAO POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing substation equipment automatic switching device, the invention provides a substation comprehensive standby automatic switching power supply device

Method used

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  • Power supply unit for standby power auto-switching devices of transformer substations
  • Power supply unit for standby power auto-switching devices of transformer substations
  • Power supply unit for standby power auto-switching devices of transformer substations

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Experimental program
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Embodiment Construction

[0012] according to figure 1 As shown, the front of the casing 1 is provided with a display screen 1.1 and a control button 1.2 is installed.

[0013] according to figure 2 As shown in , the casing is equipped with a backup self-injection element, a charging line and a switching relay circuit, and the backup auto-injection element and the power lines of each line are connected with a charging source 2 and a charger 3;

[0014] according to image 3 As shown, a relay 5 and a resistor 6 are connected to the DC power line 4, and a terminal 7 is provided on one of the lines.

[0015] according to Figure 4 As shown, there is an inter-line switch 8 connected between the lines of the standby self-injection power line 10, and an energization switch 9 is connected on the equipment self-injection power line.

[0016] Installation and setting of the present invention:

[0017] The casing is equipped with self-injection electrical components, and the electrical components are power...

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Abstract

The invention provides a power supply unit for standby power auto-switching devices of transformer substations. A display screen and control buttons are arranged in the front of a case. Standby power auto-switching device components, a charging circuit and a switching relay circuit are arranged in the case, and the standby power auto-switching device components and a power circuit of each circuit are connected with a charging source and a charger; and a direct-current power cord is connected with a relay and a resistor, and one of the circuits is provided with a wiring terminal. An inter-wire switch is connected between wires of a standby power auto-switching device power cord, and the standby power auto-switching device power cord is connected with a power-on switch. According to the invention, the running of the standby power auto-switching device components and the circuits is driven by using a direct-current, and the standby power auto-switching device power cord is switched on and off through the relay so as to supply power for an electric transmission line. The power supply unit disclosed by the invention has the characteristics of clear control display, easiness in use, and rapid response speed. The power supply unit is suitable to be applied to a standby power auto-switching device for replenishing power after an electric transmission line is powered-off.

Description

technical field [0001] The invention relates to equipment in the field of power transmission, in particular to a substation equipment automatic switching power supply device. Background technique [0002] The standby self-switching control device means that in the substation system, when the main connecting line loses power, the backup contact device automatically connects the circuit, so as to ensure the normal power supply operation of the grid. With the construction of smart grids and the construction and transformation of unattended substations, and the continuous development of power integrated automation technology, the implementation of standby automatic switching has undergone great changes. In addition, microcomputer relay protection and PLC and other devices are widely used in the field of electric power automation. The logic of standby automatic switching and its implementation method at the current stage have been greatly improved compared with the past. A new ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
Inventor 韩汝军王潇吟武红梅丁晓玉张旺罗玲王福纯张立国孙涛王焕万太峰李圣君宋文池张硕
Owner HULUDAO POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER
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