High voltage motor insulation detection device
A high-voltage motor and detection device technology, applied in the direction of motor generator testing, testing dielectric strength, etc., can solve problems such as damaged equipment and cumbersome
Active Publication Date: 2018-06-12
介国安
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Problems solved by technology
[0002] Insulation testing must be carried out before the high-voltage standby motor is put into operation. In the past, the traditional manual shaking test was very cumbersome, especially now that the high-voltage switchgear has five anti-functions, and the operation sequence must be strictly followed. Up to 4 times, it takes at least half an hour for two skilled on-duty personnel, and even damages the equipment due to improper operation. Therefore, a new ideal insulation detection device is urgently needed in the spare motor, especially the hot standby insulation detection work, but there is no such thing as yet. Similar designs and products
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[0021] figure 1 It is the schematic diagram of the main circuit of the high-voltage motor insulation detection device. The specific implementation method is: the main circuit of the high-voltage motor insulation detection device consists of n unipolar vacuum contactors KM1~KMn, high-voltage isolator GLQ, high-voltage vacuum relay ZK1, high-voltage vacuum relay ZK2, Digital high-voltage megohmmeter MΩ, zero-sequence current transformers CT01~CT0n, and current relay J0, where n refers to the number of motors M1~Mn to be tested. The main circuit of high-voltage power supply 6~10KV passes through vacuum circuit breaker QF1 and zero From the sequence current transformer CT01 to the motor M1, the insulation resistance RjY1 of the high-voltage motor refers to the total insulation resistance RjY1 of the three-phase winding of the motor and its connected cables and the lower end of the vacuum circuit breaker QF1 to the ground wire V0 of the switchgear, and the three-phase winding It is...
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The invention relates to a high-voltage motor insulation detection device, which relates to the technical field of high-voltage motor insulation detection. In the past, before the high-voltage standby motor was put into operation, it was necessary to manually use a shaker to detect the insulation. The invention provides a safe, reliable, accurate detection, simple operation, and easy implementation. , After the detection command is sent out, the detection process can be automatically completed. It is composed of multiple unipolar vacuum contactors or high-voltage isolators to perform insulation detection circuits on multiple high-voltage motors and their main circuits. Before the detection starts, the switchgear is discharged. It can find hidden troubles in the switchgear. The J0 action of the current relay can cut off the detection circuit to stop the detection. After the discharge is completed, it will automatically switch to the insulation detection of the high-voltage motor and its main circuit, and display and print out the detection results through the digital high-voltage megohmmeter. .
Description
Technical field: [0001] The invention relates to the technical field of high-voltage motor insulation detection, in particular to a high-voltage motor insulation detection device. Background technique: [0002] Insulation testing must be carried out before the high-voltage standby motor is put into operation. In the past, the traditional manual shaking test was very cumbersome, especially now that the high-voltage switchgear has five anti-functions, and the operation sequence must be strictly followed. Up to 4 times, it takes at least half an hour for two skilled watchmen, and even damages the equipment due to improper operation. Therefore, a new ideal insulation detection device is urgently needed in the spare motor, especially the hot standby insulation detection work, but there is no such thing as yet. Similar designs and products. Invention content: [0003] The purpose of the present invention is to address the above defects, to provide a safe and reliable, accurate ...
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IPC IPC(8): G01R31/12G01R31/34
Inventor 陈可张振汉介国安
Owner 介国安