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Transformer substation bus PT voltage passing system and method

A technology for substation and busbar voltage, applied in the direction of measuring electrical variables, parts and instruments of electrical measuring instruments, etc., can solve the problems of high work intensity, long voltage connection time, low efficiency, etc., and achieve low work intensity and voltage connection time. Short, no short-circuit effect

Pending Publication Date: 2021-06-15
XIAN THERMAL POWER RES INST CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The traditional busbar PT pressure test is usually carried out at the lower opening of the PT control cabinet, and the secondary external circuit voltage of the PT is measured by adding the amount to each PT secondary winding separately. The booster station with / 2 wiring method has been well applied, but when it is applied to the booster station with double-female wiring method or double-female double-section wiring method, the experimental method takes a long time to pressurize, the work intensity is high, and the efficiency is low. At this time, it is of great significance to find a PT pressure-through system and method for the busbar of the substation.

Method used

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  • Transformer substation bus PT voltage passing system and method
  • Transformer substation bus PT voltage passing system and method
  • Transformer substation bus PT voltage passing system and method

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Embodiment Construction

[0051] The present invention is described in further detail below in conjunction with accompanying drawing:

[0052] refer to figure 1 , the substation bus PT pressure system according to the present invention includes the first bus unit 2, the second bus unit 3, the first bus PT unit 1, the second bus PT unit 4, the bus tie unit 5, the PT parallel unit 6 and the following Electric protection tester 7; the first busbar unit 2 is connected to the second busbar unit 3 via the busbar unit 5, the first busbar PT unit 1 is connected to the first busbar unit 2, the second busbar PT unit 4 is connected to the second busbar The units 3 are connected, and the PT parallel unit 6 is connected with the relay protection tester 7 , the first bus PT unit 1 , the second bus PT unit 4 and the bus tie unit 5 .

[0053] The first busbar PT unit 1 includes the first busbar PT1-1, the first busbar PT isolation switch 1-2, the first busbar PT first grounding knife switch 1-3 and the first busbar P...

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Abstract

The invention discloses a transformer substation bus PT voltage passing system and method. The transformer substation bus PT voltage passing system comprises a first bus unit, a second bus unit, a first bus PT unit, a second bus PT unit, a bus coupler unit, a PT parallel unit and a relay protection tester, wherein the first bus unit is connected with the second bus unit through the bus coupler unit, the first bus PT unit is connected with the first bus unit, the second bus PT unit is connected with the second bus unit, and the PT parallel unit is connected with the relay protection tester, the first bus PT unit, the second bus PT unit and the bus coupler unit. The transformer substation bus PT voltage passing system and the method can realize the voltage conduction of the transformer substation bus PT, and have the characteristics of short voltage conduction time, low working intensity and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of power debugging and power testing, and relates to a PT pressure-through system and method for a substation busbar. Background technique [0002] The substation connects the power grids of various voltage levels in the power system, receives and distributes electric energy, controls the flow direction of the power flow, and adjusts the voltage level. The main primary equipment of a conventional substation includes bus bars, switchgear, current transformers (abbreviated as CT), voltage transformers (abbreviated as PTs), and lightning arresters. Before the substation is put into operation for the first time, it is necessary to conduct a pressure test on the bus PT to ensure that the secondary circuit of the bus PT is connected correctly and there is no short circuit. The traditional busbar PT pressure test is usually carried out at the lower opening of the PT control cabinet, and the secondary external circ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/02G01R1/04
CPCG01R35/02G01R1/0416
Inventor 张钢周亚群刘茜蒋成文马晨原聂思聪谢贝贝秦磊周菲菲张向涛
Owner XIAN THERMAL POWER RES INST CO LTD
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