126 kV全封閉組合電器電氣閉鎖原理設(shè)計(jì)
沈建位1，2，胡志超1
（1 浙江開(kāi)關(guān)廠有限公司，浙江 衢州 324000；2 浙江大學(xué) 電氣工程學(xué)院，浙江 杭州 310027）
摘 要：為防止SF6 全封閉組合電器設(shè)備誤操作事故的發(fā)生，以典型單母線分段主接線方案的126 kV組合電器為例，分析了斷路器、隔離開(kāi)關(guān)、接地開(kāi)關(guān)的電氣閉鎖原理，并針對(duì)隔離開(kāi)關(guān)控制回路存在的缺陷，設(shè)計(jì)了隔離開(kāi)關(guān)電機(jī)電源與控制電源的閉鎖回路，實(shí)現(xiàn)了設(shè)備操作防誤閉鎖功能，保障了設(shè)備和人身安全。
關(guān)鍵詞：全封閉組合電器；誤操作；電氣閉鎖；隔離開(kāi)關(guān)
中圖分類號(hào)：TM564.1 文獻(xiàn)標(biāo)識(shí)碼：B 文章編號(hào)：1007-3175(2016)09-0019-04
Electrical Blocking Principle Design of 126 kV Gas
Insulated Switchgears
SHEN Jian-wei1, 2, HU Zhi-chao1
（1 Zhejiang Switchgear Factory Co., Ltd, Quzhou 324000, China;
2 College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China）
Abstract: To avoid incorrect operation of SF6 gas insulated switchgears, taking the typical single bus with subsection connection of 126 kV composite apparatus for example, this paper analyzed the electrical blocking principles of breaker, disconnector and earthing switch. Aiming at the defects existing in disconnector control loop, this paper designed a blocking circuit for power supply and control of disconnector, which realizes the misoperation-preventive locking function of equipment to guarantee equipment and personal safety.
Key words: gas insulated switchgears; misoperation; electrical blocking; disconnector
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