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Breaker integrated test apparatus

A comprehensive test and circuit breaker technology, which is applied in circuit breaker test, electrical equipment casing/cabinet/drawer, casing/cabinet/drawer components, etc., can solve problems such as poor reliability, and prevent surface corrosion, The effect of low energy consumption, high conductivity and high strength

Inactive Publication Date: 2017-03-22
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a circuit breaker comprehensive test device that can measure the operating voltage, to solve the problem of poor reliability of the existing circuit breaker comprehensive test device that can measure the operating voltage proposed in the background technology

Method used

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] see Figure 1-3 , figure 1 A structural schematic diagram of a specific embodiment of the circuit breaker comprehensive testing device provided by the present invention; figure 2 It is the circuit diagram of the voltage testing device of the present invention; image 3 It is the PLC ladder diagram for circuit breaker control of the present invention.

[0024] In a specific embodiment, the present invention provides a technical solution: a circuit br...

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Abstract

The invention discloses a breaker integrated test apparatus. The breaker integrated test apparatus comprises a casing, the bottom portions of the left side and the right side of the casing are respectively provided with an inlet wire port and an outlet wire port, and the top portions of the left side and the right side of the casing are each provided with a ventilating port. When closing is needed, a second switch (KT2) is switched on, a third coil (KM3) and a fourth coil (KM4) are both energized, a third normally-open contact (KM31) is closed, a closing coil (HQ) is turned on, at the moment, a fourth normally-closed contact (KM41) is open, and a trip-out coil (TQ) is deenergized. When a fault occurs in a circuit, a first switch (KT1) is switched on under the effect of an electric appliance protection apparatus, a first coil (KM1) and a second coil (KM2) are both energized, a first normally-open contact (KM11) is closed, the trip-out coil (TQ) is turned on, at the moment, a second normally-closed contact (KM21) is open, the closing coil (HQ) is deenergized. Closing and tipping of a breaker are not mutually affected, the reliability is high, and the anti-electromagnetic-interference apparatus can prevent electric appliance elements in the casing from electromagnetic interference.

Description

technical field [0001] The invention relates to the technical field of testing devices, in particular to a circuit breaker comprehensive testing device. Background technique [0002] A circuit breaker is a switching device that can be opened and closed normally under the conditions of a normal circuit and an abnormal circuit. The circuit breaker can be used to distribute electric energy and protect the circuit. When a fault occurs, the circuit breaker can automatically cut off the circuit to protect the circuit. During the operation of the circuit breaker, after the circuit breaker is closed by manual or automatic device, if the operation control switch does not reset or the contact of the control switch and the contact of the automatic device are stuck, At this time, the protection action causes the circuit breaker to trip and multiple jumps occur. The jumping fault of the circuit breaker is very dangerous to the circuit breaker, and it is easy to cause damage to the mechan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327H05K5/02H05K5/06
CPCH05K5/0213H05K5/069G01R31/327H05K5/03
Inventor 陈鹏胡江雪刘平高天里赵庆治
Owner STATE GRID CORP OF CHINA