1) primary network
一次网路
2) primary circuit
一次回路,前置回路;初级电路,一次电路,原电路;一级管网
3) primary circuit
一次回路
1.
Development of intelligent CAD system software for primary circuit in transformer substations;
智能化变电所一次回路CAD系统软件开发
2.
It was pointed out that it was the larger contact résistance in primary circuit of a 200 MW turbine generator, which produced a larger unbalance voltage at open triangle of the potential transformer secondary side, that caused the protection malfunction among turn-to-turn, and some suggestions of solving these problems available were presented for .
分析了匝间保护误动的原因,指出某台200MW汽轮发电机一次回路接触电阻大,导致电压互感器(TV)二次侧开口三角出现较大的不平衡电压造成匝间保护误动。
4) primary circuit
一次电路
1.
7 in theory and recommended some feasible test methods, meanwhile, this article brought up some applicable requirements for primary circuit design and discharge of capacitors.
在IT设备的产品安全性测试和认证过程中,“一次电路电容器的放电试验”无法通过的情形较多。
5) primary short circuited
一次短路
1.
The metallographic analysis of the copper wire melted mark formed in the fire to determine a primary short circuited or a secondary short circuited,is directly related to the fire\'s cause of the accident,which is widely used in fire accidents analysis.
金相分析鉴定法在火灾物证鉴定中已得到广泛应用,通过对火灾中铜导线熔痕的金相分析来确定电气线路是一次短路还是二次短路,直接关系到火灾原因的认定。
6) primary filter screen
一次滤网
1.
Reconstruction of primary filter screen in circulating water system of 300 MW units;
300MW机组循环水系统一次滤网改造的探讨
补充资料:串联通风网路
串联通风网路
serices flow network
ch日an{!。n tongfe门g胃。门g旧串联通风网路(、。r、。5 fl、)w,:。twork)风道依次首尾相接,中间没有分岔的风网。根据风量平衡定律,串联风网中各分支风道的风量相等,并等于网路的总风鼠.即QQ.一Q。根据风压损失迭加原理,串联网路的总风服为各分支风道风压降之和,即 、「一艺,,. r}根据阻力定律,串联网路的总风阻等于各分支风道的风阻之和,即 允、一艺尺L,当用等积孔表示时.串联网路的总等积孔与各分支风道等积孔之间的关系为 “一布 叼洲月式中Q、人、尺.和魂.分别为各分支风道的风量、风压、风阻和等积孔:Q、左、此和t分别为串联网路总风壁、曾、风服、总风阻和总等积孔::、,,分别为串联网路中分支风道编号和风道总数 串联网路的特点是总风阻和风压损失均大、能耗高作业面之间风道串联时,前一作业面的污风对后-作业面造成污染,应于避免。 (李高棋)
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参考词条