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Author:
Journal / Book Title:
Year:
Volume:
Issue:
dian du biao kong zai jie dian qi
Author(s):
LUO Xiong
Pages:
10
Year:
1994
Issue:
7
Journal:
Electric Age
Keyword:
电度表
;
双向晶闸管
;
电压线圈
;
二极管
;
单相电度表
;
电流线圈
;
消耗电能
;
节电器
;
电压降
;
有负载
;
Abstract:
<正> 单相电度表内装有电压、电流两只线圈,有负载时,两只线圈同时有电流通过;无负载时,电流线圈断电,电压线圈上仍有电流流过,仍消耗电能。如一台小电度表按平均每天空载10h计算,一年就要消耗约5kWh以上的电能,全国按2亿户居民测算,一年内耗电达10亿kWh以上,这个数字还是相当
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