A generator handbag insulation-to-ground potential testing device
A hand bag insulation and ground potential technology, applied in the electrical field, can solve the problems of hand bag insulation and ground potential test that cannot be tested at the end of the involute part
Active Publication Date: 2017-09-26
ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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Problems solved by technology
[0003] Aiming at the deficiencies of the prior art, the present invention provides a device for testing the ground potential of the handbag insulation of the generator, which solves the problem that the existing test device cannot test the ground potential of the handbag insulation at the end part of the involute
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[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0023] see figure 1 , the embodiment of the present invention proposes a generator handbag insulation-to-ground potential testing device, which includes a detachable voltage sensor 1, a connecting conductor 2 at the top of a high-voltage insulating support rod, a high-voltage insulating support rod 3, a standard resistor 4, a voltage Measuring di...
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The invention provides a generator handbag insulation-to-ground potential testing device, which includes a detachable voltage sensor, a connecting conductor at the top of a high-voltage insulating support rod, a high-voltage insulating support rod, a standard resistor, a voltage measurement and display device, and a grounding system. A standard resistor is installed in the high-voltage insulating support rod; one end of the standard resistor is electrically connected to the high-voltage insulating support rod through a metal conductor, and the other end is electrically connected to the voltage measurement and display device through a metal conductor; the voltage measurement and display device, the high-voltage The bottom of the insulating support rod is connected to the grounding system; the detachable voltage sensor is connected to the high-voltage insulating support rod through the connecting conductor at the top of the high-voltage insulating support rod; the detachable voltage sensor is a plate-shaped voltage sensor, a spherical voltage sensor and a cylindrical voltage sensor. One of the sensors. The invention solves the problem that the existing test device cannot test the ground potential of the involute portion of the handbag insulation at the end.
Description
technical field [0001] The invention relates to the field of electrical technology, in particular to a device for testing the potential of a generator handbag insulation to ground. Background technique [0002] The generator is one of the important equipment in the power grid, and its safe operation is related to the safety of the whole power grid. The insulation of the handbag of the generator needs to be tested to the ground potential. The existing potential shift test technology is an insulation test method to detect the insulation defects of the handbag, by testing the compactness and relative insulation strength of the handbag insulation at the end. It can make up for the lack of terminal insulation defects that cannot be found in the AC and DC withstand voltage tests of the equipment; it can find poor insulation of the lead wire package, defects in the insulation wrapping of the coil nose, insufficient filling of the insulating box filling mud, poor curing of the bindi...
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IPC IPC(8): G01R19/00
Inventor 梁基重芦竹茂张平高鹏李艳鹏俞华
Owner ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER