防爆开关 meaning in Chinese
flame r proof switch
flame-proof switch
Examples
- This thesis gives the ideas of low cost , completed feature , 10kv epiipc ( explosion prevented intelligence integration protector controller ) , based on the advanced study about the high voltage power network under well
本文对井下高压电网进行了深入的研究,给出了低成本全功能的10kv防爆开关的综合保护器设计的思路。 - The high - voltage flameproof switchgear is a key apparatus for 6kv - power supply system in underground mines . the switchgear is used for supplying power energy to hv working machinery or next lv distribution station in coalface
煤矿井下6kv电网防爆开关是矿井供电系统的关键设备，它负责向工作面和掘进面的工作机械提供电能。 - According to the present actual underground power system which neutral point is grounded through arc suppression coil in many supper big shaft , the development history and present situation of synthetic protection system used in hv flameproof switchgear are reviewed , and on the basis of analyzing the problems existed in high voltage flameproof switchgear , the selective leakage protective method based on the detecting harmonic direction of zero sequence current as well as the value of zero sequence voltage is proposed in this paper , and at the same time , harmonics extracting schematic and transforming circuit are also designed
本文深入系统地研究了基于intel80c196kb单片机控制的6kv防爆开关综合保护系统，主要内容如下：针对大型及特大型矿井供电系统中性点普遍采用消弧线圈接地方式的现状，回顾了国内外矿用高压防爆开关保护系统的发展历史，分析了目前国内高压馈电开关保护系统所存在的问题，提出了“基于零序电压基波启动，五次谐波功率方向比较”的选择性漏电保护原理，设计了相应的五次谐波提取电路和功率方向鉴别电路。 - It is hence important to develop a kind of new intelligent protection system with wonderful performances used in flameproof switchgear which can not only improve the supply quality of underground hv distribution system but also perfect its protective properties , especially can prevent the underground from gas explosion and guarantee the operating safety for underground worker
长期以来现场所使用的这种开关载流能力小、保护简单、故障率高，直接影响矿井供电的可靠性、安全性和连续性，因此研究高性能的6kv防爆开关综合保护系统对提高供电质量、保障人身安全，完善电网保护不仅具有重要的现实意义而且具有较高的经济价值。