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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: 2008-10-15
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] by figure 1 It can be seen that the test device for the transient characteristics of the molded case circuit breaker includes a computer control cabinet and a work cabinet; wherein the computer control cabinet includes an industrial computer 1, a detection circuit 2 and a control circuit 3; the work cabinet includes a motor 4 and a current regulating circuit 5 and sample 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 regulating circuit 5 and the test product detection gear 6 respectively; the control circuit 3 is connected to the current regulating circuit 5 via the motor 4.

[0030] figure 1 The current regulating circuit 5 described in figure 2 As shown, including test power supply 50, main switch 51, main circuit control switch 52, AC solid state relay 53, electric auto-voltage regulator 54, group control switch 55, high current transformer ...

Embodiment 2

[0056] In the described device for testing the transient characteristics of the molded case circuit breaker, the motor 4 in the work cabinet can also be a unidirectional rotating motor; in the work cabinet, multiple gear positions can be set on the test product detection gear 6 according to the needs. Case circuit breaker samples are tested.

[0057] The rest of the structure and principle are the same as the first embodiment.

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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 test device for a circuit breaker, and particularly relates to a transient characteristic test device for a molded case circuit breaker for performing a transient characteristic debugging test on a switch electrical product. Background technique: [0002] Low-voltage molded case circuit breakers are important equipment in low-voltage electrical appliances. They are used in low-voltage distribution circuits, motors or other electrical equipment, and are responsible for connecting, carrying and breaking current under normal or abnormal conditions (such as short circuits). [0003] With the continuous development of science and technology, energy consumption is increasing in all aspects of social production and life, and among various energy sources, electric energy is used most widely. According to statistics, a set of 300,000 kilowatts of power generation equipment requires 1.2 million pieces of various low-voltage electrical comp...

Claims

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Application Information

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Patent Type & Authority Patents(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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