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Automatic test platform and test method for mechanical aging characteristics of circuit breaker

A technology of automatic testing and aging characteristics, which is applied in the direction of circuit breaker testing, etc., can solve the problems of long duration of circuit breakers, heavy testing workload, and long testing time, and achieve high testing efficiency, easy operation, and high degree of automation Effect

Pending Publication Date: 2022-03-08
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The aging test for a large number of circuit breakers will last for a long time and the test workload will be heavy. At present, the test efficiency of manual test is low and the test time is long

Method used

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  • Automatic test platform and test method for mechanical aging characteristics of circuit breaker
  • Automatic test platform and test method for mechanical aging characteristics of circuit breaker
  • Automatic test platform and test method for mechanical aging characteristics of circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] An automatic test platform for mechanical aging characteristics of a circuit breaker, which is used to test the mechanical aging characteristics of the circuit breaker 8 to be tested, such as figure 1 , figure 2 , image 3 and Figure 4, including adjustable switching power supply 1, transfer switch 2, PLC controller 3, mechanical characteristic instrument 4, first contactor array 5, second contactor array 6 and test sensor 7, installation cabinet 10 and bench 15, transfer switch 2. Connect with the adjustable switching power supply 1, the PLC controller 3 and the mechanical characteristic instrument 4, the PLC controller 3, the first contactor array 5 and the circuit breaker 8 to be tested are electrically connected in sequence, the mechanical characteristic instrument 4, the second contactor The array 6 and the circuit breaker 8 to be tested are electrically connected in sequence, and the mechanical characteristic instrument 4 , the test sensor group 7 and the circ...

Embodiment 2

[0058] A kind of test method that adopts the test platform proposed in embodiment 1, comprising:

[0059] The transfer switch 2 controls the PLC controller 3 to be connected to the adjustable switching power supply 1, and controls the mechanical characteristic instrument 4 to be disconnected from the adjustable switching power supply 1. At this time, the aging characteristic test step is performed.

[0060] The transfer switch 2 controls the PLC controller 3 to be disconnected from the adjustable switching power supply 1, and controls the mechanical characteristic instrument 4 to be connected to the adjustable switching power supply 1. At this time, the mechanical characteristic test step is performed;

[0061] After performing the aging characteristic test step 50 times, switch to the mechanical characteristic test step, and then switch to the aging characteristic test step after performing the mechanical characteristic test step once, and automatically stop the test after per...

Embodiment 3

[0070] In this embodiment, the number of circuit breakers 8 to be tested is three, and the first contactor array 5 includes several groups of first contactor groups. The number of the first contactor groups is the same as the number of circuit breakers 8 to be tested. The contactor groups are connected in one-to-one correspondence with the circuit breakers 8 to be tested; the second contactor array 6 includes several groups of second contactor groups, the number of the second contactor groups is the same as the number of the circuit breakers 8 to be tested, and the second contactors The groups are connected with the circuit breakers 8 to be tested in one-to-one correspondence, and the test platform can test multiple circuit breakers at the same time, which greatly improves the test efficiency. Others are the same as in Example 1.

[0071] Embodiment 1, Embodiment 2 and Embodiment 3 propose an automatic test platform and test method for the mechanical aging characteristics of c...

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Abstract

The invention relates to a circuit breaker mechanical aging characteristic automatic test platform and a test method, the test platform comprises an adjustable switch power supply, a change-over switch, a PLC controller, a mechanical characteristic instrument, a first contactor array, a second contactor array and a test sensor, the change-over switch is connected with the adjustable switch power supply, the PLC controller and the mechanical characteristic instrument; the PLC, the first contactor array and the to-be-tested circuit breaker are electrically connected in sequence, the mechanical characteristic instrument, the second contactor array and the to-be-tested circuit breaker are electrically connected in sequence, and the mechanical characteristic instrument, the test sensor group and the to-be-tested circuit breaker are electrically connected in sequence. According to the test method, the aging characteristic test can be automatically and continuously carried out on the to-be-tested circuit breaker, the mechanical characteristic test mode is automatically switched to after the aging characteristic test times reach the set times, and a plurality of circuit breakers can be tested. Compared with the prior art, the test platform is high in automation level and high in test efficiency.

Description

technical field [0001] The invention relates to a circuit breaker testing device, in particular to an automatic testing platform and testing method for the mechanical aging characteristics of a circuit breaker. Background technique [0002] 10kV switchgear is widely used in the power system for the control and protection of power equipment. After a long period of operation, the aging of various functional components in the switchgear will seriously affect the performance of the equipment. Once a serious failure occurs in the switchgear, if it is not maintained and repaired in time, it will cause a vicious accident, threaten the safe and reliable operation of the power system, cause serious property losses, and more likely cause casualties to relevant staff. In order to prevent the occurrence of 10kV switchgear failures, it is very necessary to predict the life of the switchgear, determine an optimal time for equipment maintenance or update, reduce the failure rate and accid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
CPCG01R31/327
Inventor 曹培高凯徐鹏赵金良林元贤廖巍季怡萍王劭菁
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO