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Comprehensive off-line test platform for generator rotor insulation measurement device

A generator rotor and insulation measurement technology, applied in the direction of motor generator testing, etc., can solve the problems of equipment operation interference, inability to fully guarantee carbon brush jumping, disassembly and adjustment, etc., to achieve the effect of solving false alarms

Active Publication Date: 2016-08-31
CHINA GENERAL NUCLEAR POWER OPERATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current difficulty is that after the disassembly and assembly of the carbon brushes and slip rings during the overhaul, the generator has not rushed to the rated speed, the static test means are limited, and it is difficult to judge the static installation quality
What is more difficult is that the static test cannot fully guarantee that the carbon brush will not jump on the surface of the slip ring after the generator runs
However, once the generator is running, the carbon brush is in the high-speed rotating equipment accessories, and the slip ring itself is rotating at a high speed, so it cannot be disassembled and adjusted. If an alarm occurs, the adjustment can only be made after the generator is shut down for the next overhaul. Operation causes great disturbance

Method used

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  • Comprehensive off-line test platform for generator rotor insulation measurement device
  • Comprehensive off-line test platform for generator rotor insulation measurement device
  • Comprehensive off-line test platform for generator rotor insulation measurement device

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Embodiment Construction

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] Such as Figure 1 to Figure 5 Shown is the comprehensive off-line test platform of the generator rotor insulation measuring device in the present invention, figure 1 It is a structural schematic diagram of the rotating test platform of the comprehensive off-line test platform of the generator rotor insulation measuring device in an embodiment of the present invention. figure 2 It is a cross-sectional view of the coupling of the comprehensive off-line test platform of the generator rotor insulation measuring device in an embodiment of the present invention. image 3 It is a front view of the sway adjustment plate of the comprehensive off-line test platform of the generator rotor insulation measuring device in an...

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Abstract

The invention discloses a comprehensive off-line test platform for a motor rotor insulation measuring device, which includes a rotating test platform and a console connected to the rotating test platform. The rotating test platform includes a motor installed on the rotating test platform, a slip ring shaft, a slip ring and First carbon brush. The slip ring shaft is connected to the drive shaft of the motor, and the slip ring is sleeved on the slip ring shaft and rotates with the slip ring shaft. During the test, the motor reaches the rated speed, and the first carbon brush contacts the slip ring by lifting the brush and outputs an electrical signal. The console includes motor power distribution and control circuit, carbon brush power distribution and control circuit, and oscilloscope. During the test, use the oscilloscope to record waves to confirm that the waveform of the input electrical signal has no clutter, so as to ensure that when the motor reaches the rated speed, the first A carbon brush is always in contact with the slip ring and the first carbon brush does not jump on the surface of the slip ring. After testing, it can be guaranteed that the first carbon brush will not jump on the surface of the slip ring, thereby solving the problem of false alarm of the generator rotor grounding protection.

Description

technical field [0001] The invention relates to the field of false alarm simulation experiments of a generator rotor insulation measuring device, in particular to a comprehensive off-line test platform for a generator rotor insulation measuring device. Background technique [0002] The generator rotor insulation measurement device uses a pair of electromagnets or spring-type carbon brush contact slip rings to apply power frequency injection signals between one pole of the rotor winding and the ground, and the measurement device measures the injected current to calculate the rotor-to-ground insulation. value. [0003] During operation, because the carbon brush jumps on the surface of the high-speed rotating slip ring, the measurement signal current is interrupted and then turned on again, because the capacitor voltage cannot change suddenly, causing waveform distortion, and the measurement device is wrong, causing false alarms. [0004] It is necessary to ensure that the par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
Inventor 王建涛刘志强房志强王永亮汪海吴永涛胡嵩黄巍张文军赵乾陈俊达姜永波
Owner CHINA GENERAL NUCLEAR POWER OPERATION
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