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Plastic-casing circuit breaker instantaneous characteristic test device

A molded case circuit breaker and characteristic test technology, which is applied in the direction of circuit breaker testing, measuring devices, instruments, etc., can solve the problem of inaccurate setting current of the circuit breaker, achieve the effect of improving quality and reliability, and ensuring accuracy

Inactive Publication Date: 2006-03-08
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem to be solved by the present invention is to solve the current situation that the current calculation method, control theory and computer technology are not applied to the circuit breaker transient characteristic debugging test, and the circuit breaker setting current is inaccurately verified by the traditional instantaneous calibration platform. A test device for transient characteristics of molded case circuit breakers

Method used

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  • Plastic-casing circuit breaker instantaneous characteristic test device
  • Plastic-casing circuit breaker instantaneous characteristic test device
  • Plastic-casing circuit breaker instantaneous characteristic test device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Depend on figure 1 It can be seen that the test device for transient characteristics of molded case circuit breakers includes a computer control cabinet and a working cabinet; wherein, the computer control cabinet includes an industrial computer 1, a detection circuit 2 and a control circuit 3; the working cabinet includes a motor 4, a current regulation circuit 5 and test product detection gear 6. The industrial computer 1 is connected to the detection circuit 2 and the control circuit 3 respectively; the detection circuit 2 is connected to the current regulation circuit 5 and the test product detection gear 6;

[0030] figure 1 The current regulation circuit 5 as described in figure 2As shown, it includes a test power supply 50, a main switch 51, a main circuit control switch 52, an AC solid state relay 53, an electric auto-coupling voltage regulator 54, a group control switch 55, a large current transformer 56, a load circuit switch 57, and a current detection res...

Embodiment 2

[0056] In the transient characteristic test device of the molded case circuit breaker, the motor 4 in the working cabinet can also use a unidirectional rotating motor; in the working cabinet, multiple gears can be set on the test product detection gear 6 as required for multiple plastics. Case circuit breaker test samples are tested.

[0057] All the other structures and principles are the same as in Embodiment 1.

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Abstract

This invention refers to instantaneous release property tester for plastic casing current breaker, which contains computer control cabinet and work cabinet, wherein the computer control cabinet including work control machine, detection circuit and control circuit, the work cabinet including motor, current adjusting circuit and test sample shift, the work control machine connected with detection circuit and control circuit, detection circuit connected with current adjusting circuit and test sample shift, control circuit connected with motor and current adjusting circuit. Said invention can real time test the current and voltage parameter of test circuit.

Description

Technical field: [0001] The invention belongs to a circuit breaker test device, in particular to a molded case circuit breaker transient characteristic test device for performing a transient characteristic debugging test on switch electrical products. Background technique: [0002] Low-voltage molded case circuit breakers are important equipment in low-voltage electrical appliances. They are used in low-voltage power distribution circuits, motors or other electrical equipment, and are responsible for connecting, carrying and breaking current under normal or abnormal conditions (such as short circuit). [0003] With the continuous development of science and technology, social production, life and other aspects consume more and more energy, and among all kinds of energy, electric energy is the most widely used. According to statistics, a set of 300,000-kilowatt power generation equipment requires 1.2 million pieces of various low-voltage electrical components, including 66,000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327G01R31/00
Inventor 陆俭国杜太行骆燕燕
Owner HEBEI UNIV OF TECH
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