Kev paub

​This meter is used to measure the three-phase four-wire AC active energy with a rated frequency of 50HZ and a reference voltage of 3220/380V.

Yog tias pom tias nws yog cov hlau lead -dawb lossis tas sij hawm watt-teev meter, thov nug lub tuam txhab cuam tshuam los rov-calibrate ua ntej txhim kho thiab siv nws los xyuas k

​In low-voltage three-phase four-wire lines, three-element three-phase watt-hour meters are commonly used. If the load current on the line does not exceed the range of the watt-hou