一起500kV液壓機構斷路器頻繁打壓缺陷分析

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[摘 要]高壓斷路器液壓機構故障中，油泵頻繁打壓故障占相當一部分比例。文章針對一起500 kV液壓機構斷路器頻繁打壓缺陷進行分析，根據缺陷情況具體分析斷路器操作機構內出現頻繁打壓的各類原因，總結造成操作機構AH2閥門滲漏油的因素，同時建議對運行時間長的此類型機構合閘AH2閥進行更換。

[關鍵詞]液壓操作機構；打壓頻繁；AH2閥；內漏

[中圖分類號]TM561 [文獻標志碼]A [文章編號]1001–523X（2022）07–0092–03

Analysis of A 500 kV Hydraulic Mechanism Circuit Breaker Frequent Pressurization Defect

Cao Xin

[Abstract]In the hydraulic mechanism failure of high voltage circuit breaker， the frequent pressurization failure of oil pump accounts for a considerable proportion. This paper analyzes the frequent pressurization defect of a 500 kV hydraulic mechanism circuit breaker， analyzes various causes of frequent pressurization in the circuit breaker operating mechanism according to the defect situation， summarizes the factors causing oil leakage of ah2 valve of the operating mechanism， and suggests replacing the closing ah2 valve of this type of mechanism with long operation time.

[Keywords]hydraulic operating mechanism； frequent suppression； AH2 valve； internal leakage

電網供電的安全可靠在當下越發(fā)重要，因此對系統(tǒng)穩(wěn)定性的要求也越發(fā)嚴格。（剩余3751字）