
Watt-hour, var-hour and maximum demand indicators for telemetering Part 1: General measuring instrument
出版:Japanese Standards Association

专家解读视频
This Japanese Industrial Standard specifies the separate type indicators and multi-circuit summation indicators for telemetering, which indicate the watt-hour, var-hour and maximum demand by receiving pulses transmitted from general-use watt-hour meters, i.e. transmitter-incorporating watt-hour meters and transmitter-incorporating var-hour meters that are used in combination with instrument transformers in three-phase three-wire system and three-phase four-wire system circuits.