母聯(lián)開關(guān)四極斷路器選擇分析 

劉文杰1，李剛2 
(1 大連紅秋電控設(shè)備有限公司，遼寧 大連 116600；
2 大連豪森設(shè)備制造有限公司，遼寧 大連 116036) 
 

摘 要： 低壓斷路器的正確選擇在配電系統(tǒng)設(shè)計(jì)中至關(guān)重要，介紹了影響四極斷路器選擇的主要因素，分析了斷零、中性線帶電、雜散電流對斷路器選擇所造成的影響，并針對不同的接地形式討論了母聯(lián)開關(guān)四極斷路器的選擇方法。建議選用帶有斷零保護(hù)的四極斷路器作為母聯(lián)開關(guān)，達(dá)到既避免雜散電流，又保證供電系統(tǒng)安全可靠的目的。
關(guān)鍵詞： 斷零；中性線帶電；雜散電流；接地形式；四極斷路器
中圖分類號：TM561 文獻(xiàn)標(biāo)識碼：B 文章編號：1007-3175(2015)01-0026-03

Selection Analysis of Four-Pole Circuit Breaker for Bus Tie 

LIU Wen-jie1, LI Gang2 
（1 Dalian Honqiu Electric Controls Equipment Co., Ltd, Dalian 11 6600, China;
2 Dalian Haosenread Equipment Manufacture Co., Ltd, Dalian 11 6036, China;） 
 

Abstract: Correct selection of low-voltage circuit breakers is a very important factor in distributed system design. Introduction was made to the main factors impacting on four-pole circuit breakers. This paper analyzed the impacts of neutral breaking, live neutral line and stray current on circuit breakers selection, aiming at different grounding forms to discuss on the bus-tie four-pole circuit breakers selection method. It is suggested that the four-pole circuit breakers with neutral breaking protection should be selected as the bus tie switch to avoid stray current and to ensure power supply system safe and reliable.
Key words: neutral breaking; neutral charged; stray current; grounding type; four-pole circuit breaker

參考文獻(xiàn)
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[2] 李英姿，洪元頤.現(xiàn)代建筑電氣供配電設(shè)計(jì)技術(shù)[M].北京：中國電力出版社，2008.
[3] 李順康，丁受甫.變壓器總保護(hù)開關(guān)和聯(lián)絡(luò)開關(guān)采用四極斷路器芻議[J].低壓電器，2008(4)：32-36.