Spare power automatic switching test auxiliary device and use method

A technology of auxiliary device and automatic switching, which is applied to measuring devices, measuring device casings, instruments, etc. It can solve the problems of power failure, error-prone, and speed can not keep up with primary equipment, so as to improve operation reliability and be easy to popularize and apply. , the effect of simple installation

Inactive Publication Date: 2020-04-10
STATE GRID FUJIAN ELECTRIC POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The requirements of multi-contact switch-in and continuous displacement of the contacts in the test of the self-injection device are exactly the difficulties of the field test: 1. Purely manual short-circuit contacts, the speed cannot keep up, and it is easy to make mistakes; 2. The contacts of the protection tester Limited, does not meet multi-joint requirements
In actual work, the primary live equipment is used for transmission to completely verify the correctness of the logic, but it also brings hidden dangers to the safe operation of the primary equipment. Once an error occurs, the primary equipment will lose power

Method used

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Examples

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Embodiment Construction

[0020] In order to make the features and advantages of this patent more obvious and easy to understand, the following special examples are described in detail as follows:

[0021] Such as Figure 2-Figure 5 As shown, the main body of the device in this embodiment is composed of a box body, two multi-contact universal transfer switches, a time relay, an intermediate relay, and two rows of plug-in terminal blocks, which are electrically connected by connecting wires. The contacts of the two universal transfer switches are respectively arranged in one column of the two rows of terminal blocks arranged side by side, which also correspond to the contacts of a section of the busbar unit, so that the wiring and the busbar section clearly correspond and meet the requirements of multiple contacts. It can be realized that the wiring of the standby automatic switching protection device can be completed at one time. During the test process, only a part of the wiring of the terminal block ...

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Abstract

The invention provides a spare power automatic switching test auxiliary device and an application method, and the device is characterized in that the device comprises a first terminal strip, a secondterminal strip, a first change-over switch, a second change-over switch, an intermediate relay, and a time relay. The first change-over switch and the intermediate relay are connected with the first terminal strip. The second change-over switch and the time relay are connected with the second terminal strip. The device is simple, reliable and economical. Wiring and operation are simple and convenient. The requirements of multi-contact input and contact successive continuous displacement of a spare power automatic switching device test are met, and the complete test of spare power automatic switching action logic can be completed well in a matched mode. The device is easy to popularize and apply, has good practicability in the field practice of spare power automatic switching device debugging, and is beneficial to improving the operation reliability of spare power automatic switching primary equipment of an existing power system and the working efficiency of field test personnel.

Description

technical field [0001] The invention belongs to the field of electric equipment, and in particular relates to an auxiliary device for self-injection test and a use method thereof. Background technique [0002] As attached to the manual figure 1 As shown, during the inspection of the automatic switch-on device of the backup power supply of the power system (referred to as standby automatic switch-on), the primary equipment is not powered off. In order to check the correctness of the action logic of the device, it is necessary to do: [0003] 1. Simulate 5 circuit breakers (DL) on and off, and the status of the busbar with or without pressure (also use the contact to judge) into the standby automatic switching device. [0004] 2. According to the protection principle of automatic switching protection, for each action logic, the logic test can only be completed by simulating the position of the switch three times in a short period of less than 1 second. [0005] The requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/04G01R31/00
CPCG01R1/0416G01R31/00
Inventor 林江华卓建章陈琼高琴林锦冰谢榕燕李亮
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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