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Motor comprehensive protector tester

A comprehensive protector and tester technology, applied in the direction of instruments, measuring electricity, measuring devices, etc., can solve the problems of bumpy long-distance transportation, inability to detect the protector, and the protector cannot be used normally, and achieve the effect of improving the efficiency of fault detection.

Pending Publication Date: 2018-09-28
SICHUAN CHUANMEI HUARONG ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a tester for integrated motor protectors, which solves the problem that the current integrated motor protectors cannot be used normally due to unqualified quality or bumpy long-distance transportation, and cannot timely check whether the protectors can be used normally. Perform timely detection of issues that cause delays in production

Method used

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Embodiment

[0019] The motor comprehensive protector tester according to the embodiment of the present invention includes a large current generator, a transformer TC, an ammeter I, an overload test switch K1, an overload test contactor coil KM1, a plurality of parallel main contacts of the overload test contactor, and a phase loss test. Switch K2, phase loss test contactor coil KM2, main contacts of multiple parallel phase loss test contactors, leakage test resistance 1 R1, leakage test resistance 2 R2, leakage test switch 1 K3, leakage test switch 2 K4, indicator light L, contact one 1, contact two 2, A stud A, B stud B, C stud C, D stud D, E stud E and F stud F, the schematic diagram of the circuit structure is shown in figure 1 , Among them, the primary side of the transformer TC is used to connect with the AC voltage source, and one end of the secondary side is respectively connected to one end of the leakage test switch 1 K3, one end of the leakage test switch 2 K4, one end of the con...

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Abstract

The invention relates to the motor comprehensive protector testing technology. According to the invention, an existing motor comprehensive protector cannot be normally used due to the unqualified state or the long-distance transportation turbulence condition of the existing motor comprehensive protector. Meanwhile, whether the normal usage of the existing motor comprehensive protector is enabled or not cannot be detected in time, so that the production is delayed. The invention provides a motor comprehensive protector tester. The technical scheme of the motor comprehensive protector tester canbe summarized as follows: a corresponding leakage test circuit, a corresponding overload test circuit and a corresponding phase loss test circuit are integrally arranged in the tester. As a result, whether the electric leakage condition, the overload condition and the phase loss condition of the motor comprehensive protector exist or not can be tested before the usage of the motor comprehensive protector. The fault detection efficiency is greatly improved. The condition that the motor comprehensive protector cannot be used normally due to electric leakage, overload and phase loss conditions so as to delay the production can be avoided. The tester is suitable for motor comprehensive protectors.

Description

technical field [0001] The invention relates to the technology of a comprehensive protector for electric motors, in particular to the technology of a tester for a comprehensive protector of a motor. Background technique [0002] Due to the particularity of the underground environment of coal mines, it is required that the underground electrical equipment must use Class I mine explosion-proof products. At present, scraper conveyors, belt conveyors, winches, rakes, water pumps and other equipment used in coal mines all use QBZ series magnetic starters to control the motor. The ZDB (JDB) motor comprehensive protector used in this series of starters It is a wearing part. Some units often report that after replacing the ZDB (JDB) motor comprehensive protector, the protector cannot be used normally due to product quality problems or long-distance transportation bumps, and the QBZ series magnetic starter cannot be started normally, which affects production. . SUMMARY OF THE INVE...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02G01R31/00G01R29/16
CPCG01R29/16G01R31/00G01R31/50
Inventor 董兴洪孙光全陈志强何祝友王俭
Owner SICHUAN CHUANMEI HUARONG ENERGY CO LTD
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