Modification method of high-voltage breaker

A high-voltage circuit breaker and circuit breaker technology, applied in high-voltage air circuit breakers, high-voltage/high-current switches, circuits, etc., can solve the problem that oil-less circuit breakers affect the power supply reliability of power supply departments, increase failure rates, and restrict the development of urban power grids, etc. question

Inactive Publication Date: 2012-05-30
KAIFENG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER
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AI Technical Summary

Problems solved by technology

[0003] The 10KV oil-less circuit breakers in the substations built in the early stage directly supply power to the society can no longer meet the needs of urban development. Some disadvantages of the oil-less circuit breakers have seriously affected the reliability of power supply of the power supply department and have beco...

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  • Modification method of high-voltage breaker
  • Modification method of high-voltage breaker
  • Modification method of high-voltage breaker

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Experimental program
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Effect test

Embodiment Construction

[0009] Through the investigation of the status quo of 10KV circuit breakers in a certain area:

[0010] Table I:

[0011]

[0012] Table II.

[0013]

[0014] Looking at the above chart analysis, 10KV oil-less circuit breakers urgently need to be transformed into vacuum circuit breakers to ensure power quality and power supply reliability. For the type of vacuum circuit breaker currently used, the mechatronics vacuum circuit breaker should be the first choice.

[0015] For the oil-less circuit breaker, the first step is to formulate a transformation plan, install and debug the vacuum circuit breaker, and ensure the quality of the equipment installation;

[0016] Retrofit steps:

[0017] 1.1 Removal of the oil-less circuit breaker: First, according to the type of the switch cabinet, remove the oil-less circuit breaker in the switch cabinet from below the busbar switch and between the current devices, and connect the original mechanism to the circuit breaker connecting ...

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Abstract

The invention relates to a modification method of a breaker, and particularly relates to a modification method of a high-voltage breaker. Through the modification method, the modified vacuum breaker has the effects that: after partial 10kV breakers for urban power supply are replaced, the overloading condition of the breaker is eliminated, the power failure times and overhaul times are reduced, and the power supply reliability is enhanced; the vacuum breaker is replaced, thus the workload and labor intensity of the maintainers are greatly reduced and the overhaul and maintenance costs are saved; the oil leakage problem of the vacuum breaker is avoided, the defect condition of the equipment is reduced, and the maintenance workload is reduced; and after the vacuum breaker is replaced, the operational reliability of the equipment is increased and the safe operation coefficient of the power grid is increased.

Description

technical field [0001] The invention relates to a method for reforming a circuit breaker, in particular to a method for reforming a high-voltage circuit breaker. Background technique [0002] In recent years, my country's economy has continued to develop rapidly, the electricity consumption of enterprises and large users has increased significantly, and power transformation and distribution equipment has also been widely used. The reliability of power supply can only be recovered by selling more electricity to users. This is the ultimate goal of power enterprises to pursue maximum benefit. Power supply reliability, equipment defect rate, and the number of intact equipment are all indicators to measure and assess the power supply department. [0003] The 10KV oil-less circuit breakers in the early substations that directly supply electricity to the society can no longer meet the needs of urban development. Some disadvantages of the oil-less circuit breakers have seriously af...

Claims

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Application Information

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IPC IPC(8): H01H33/66H01H11/00
Inventor 李明
Owner KAIFENG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER
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