Introduction - If you have any usage issues, please Google them yourself
Correct wiring of the power measurement device to ensure accurate measurement of the premise, because the energy meter, voltage transformer (PT), current transformer (CT) is a small error and wrong wiring caused the error but can reach infinity (wrong wiring stop Walking phenomenon), described as the first-line of the difference between the amount of ten million, so should be put into operation before or run wiring checks on a regular basis. Wiring checks can be divided into two situations: power outages check, charged checks. Power outage and inspection would be relatively simple, it is generally for the newly installed or replacement of the PT, CT and other metering devices put into operation before the inspection, the main content is to check the PT, the polarity of the CT ratio and secondary wiring check