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Special tool for anti-trip test of reliable type circuit breaker as well as application method thereof

A special tool and technology for circuit breakers, applied in the field of special tools for reliable anti-jump tests of circuit breakers, can solve the problems of reducing the mechanical life of circuit breakers and the number of people, to avoid burning out circuit boards, solve low success rates, and improve tests. success rate effect

Pending Publication Date: 2019-10-01
LANGFANG POWER SUPPLY COMPANY STATE GRID JIBEI ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, repeated tests have also reduced the mechanical life of the circuit breaker, and one person needs to be supervised during the test, and the other two are to hold the test line for the test, which requires a large number of people

Method used

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  • Special tool for anti-trip test of reliable type circuit breaker as well as application method thereof
  • Special tool for anti-trip test of reliable type circuit breaker as well as application method thereof
  • Special tool for anti-trip test of reliable type circuit breaker as well as application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Please refer to figure 1 , this embodiment provides a reliable special tool for circuit breaker anti-jumping test, including an opening plug 10 , a closing plug 20 , and a common plug 30 . Consists of three traditional 4mm 2 The test wires are used as conductive wires, one end of the three wires is connected together, and the joint is sealed with insulating rubber, and the other ends of the three wires are respectively connected to the opening plug 10, the closing plug 20 and the common plug 30. Connect the common plug 30 to connect a DC switch 40 on the electric wire; thus the connection relationship of the whole anti-jump test special tool is that the common plug 30 is connected on the first terminal of the switch 40, and the opening plug 10 and the closing plug 20 is connected in parallel on the second connection terminal of the switch 40 opposite to the first connection terminal. A DC switch is set in the middle of the positive electricity test line to control the...

Embodiment 2

[0042] The main part of this embodiment is the same as that of Embodiment 1, and the similarities will not be repeated; the differences between this embodiment and Embodiment 1 are:

[0043] Please refer to Figure 5 , In this embodiment, the inner bore 53 of the pin is divided into three sections, the middle section is thin, the front section and the rear section are thick; the connection between the middle section and the front section of the inner bore 53 is a conical surface. The front end of the inner needle 70 is provided with a top ball 72, and the diameter of the top ball 72 is greater than the diameter of the middle section of the inner bore 53, and is less than or equal to the diameter of the front section of the inner bore 53. The part near the rear end of the inner needle 70 is threadedly engaged with the rear section of the inner bore 53, and by rotating the inner needle, the inner needle retreats from the front section of the inner bore 53 to the conical surface ...

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Abstract

The invention discloses a special tool for an anti-trip test of a reliable type circuit breaker as well as an application method thereof. The special tool comprises an electric brake separating plug,an electric brake closing plug, a common plug and a switch; a first wiring terminal and a second wiring terminal which are oppositely arranged are arranged on the switch; and the common plug is connected with the first wiring terminal, and the electric brake separating plug is connected with the electric brake closing plug in parallel on the second wiring terminal. During the test, the electric brake separating plug, the electric brake closing plug and the common plug are respectively inserted into an electric brake separating terminal, an electric brake closing terminal and a positive electricity terminal, and the switch is switched on in a tripping position of the circuit breaker for performing the test; each plug is reliably connected with the corresponding terminal, the special tool does not need to be held by a hand after connection, an electric brake closing signal is avoided from being interrupted as the hand shakes, and then test failure is avoided from being caused, so that success rate of the anti-trip test is improved; besides, when the special tool disclosed by the invention is utilized for performing the anti-trip test, a single person can operate, and labor cost is reduced.

Description

technical field [0001] The application belongs to the technical field of circuit breaker anti-jump test, and in particular relates to a reliable special tool for circuit breaker anti-jump test and a use method thereof. Background technique [0002] In order to improve the operation reliability of high-voltage circuit breakers, the anti-jump test of high-voltage circuit breakers has been paid more and more attention. In a large number of annual school work, it is a heavy task to perform anti-jump tests on a large number of circuit breakers. [0003] At present, there is no standardized special tool for anti-jump test in the industry. The main method for anti-jump test is to connect two test wires together as the common terminal, insert the positive terminal, and use the other two ends as the opening and closing terminals respectively, and insert the opening and closing terminals. Close terminal. Theoretically, if the circuit breaker closes and then opens and then closes agai...

Claims

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Application Information

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IPC IPC(8): G01R31/327
CPCG01R31/3272
Inventor 康旭李小虎陈仁杰钱宇索梦娜王少杰王茜霍英杰
Owner LANGFANG POWER SUPPLY COMPANY STATE GRID JIBEI ELECTRIC POWER COMPANY
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