GIS steep wave measurement triggering system for pumped storage power station
A pumped-storage power station and steep wave technology, applied in the field of state monitoring of substation equipment, can solve the problem that GIS steep wave signals cannot be multi-point, synchronous acquisition and accurate measurement, etc.
Pending Publication Date: 2022-07-29
STATE GRID XINYUAN +3
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Problems solved by technology
As a result, GIS steep wave signals cannot be multi-point, synchronously collected and accurately measured
Method used
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[0009] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.
[0010] like figure 1 Described, a GIS steep wave measurement triggering system for pumped storage power station provided by this application includes: a GIS casing 2, the GIS casing 2 has a built-in GIS guide rod 1; the side wall of the GIS casing is The GIS reserved hand hole 4 and the GIS reserved hand hole 5 are provided; the GIS reserved hand hole 4 is connected with the GIS partial discharge sensor 6; the output end of the GIS partial discharge sensor 6 is connected to the optical fiber pulse trigger 9...
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The invention provides a GIS steep wave measurement triggering system used for a pumped storage power station. The GIS steep wave measurement triggering system comprises a GIS shell, a GIS guide rod and a trigger device, wherein the GIS guide rod is arranged in the GIS shell; two GIS reserved hand holes are formed in the side wall of the GIS shell; the first GIS reserved hand hole is connected with a GIS partial discharge sensor; the output end of the GIS partial discharge sensor is connected with the input end of the optical fiber pulse trigger through a BNC cable; the output end of the optical fiber pulse trigger is connected with the input end of the optical fiber pulse receiver through an optical fiber; the output end of the optical fiber pulse receiver is connected with an oscilloscope; the second GIS reserved hand hole is fixedly connected with a transient overvoltage sensor; the output end of the transient overvoltage sensor is connected with the input end of the low-voltage arm resistance-capacitance box through a BNC cable; the output end of the low-voltage arm resistance-capacitance box is connected with the input end of the resistance-capacitance voltage division box through the BNC cable; the output end of the resistance-capacitance voltage dividing box is connected with the oscilloscope through a BNC cable. The problem that multi-point synchronous acquisition and accurate measurement of GIS steep wave signals cannot be realized in the prior art is solved.
Description
technical field [0001] The present application relates to the technical field of state monitoring of substation equipment, in particular to a GIS steep wave measurement triggering system for a pumped-storage power station. Background technique [0002] Pumped storage power stations generally use fully enclosed gas insulated switchgear (GIS) equipment, in which the disconnecting switch contacts move slowly, and multiple re-breakdowns will occur between the dynamic and static contacts during the opening operation. There will be multiple pre-breakdowns during operation, and one operation will generate hundreds of arc reburns. In addition, because the leads that are opened and closed by the isolating switch are generally short, the waves are refracted and reflected very quickly, and VFTO (Very Fast Transient Overvoltage) with extremely high frequency and extremely steep wave head will be generated during the operation of the isolating switch. phenomenon, VFTO is a typical steep...
Claims
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Login to View More IPC IPC(8): G01R31/00G01R31/12
CPCG01R31/00G01R31/1227
Inventor 孙文东赵利军王磊唐亮马国明穆良王伟何慧雯戴敏秦炜淇刘昊
Owner STATE GRID XINYUAN