In the meter aluminum plate is inverted, maintenance worker sometimes not required to analyze the wiring diagram

The right to engage in industrial, energy measurement is accurate. Therefore, the meter aluminum plate is inverted, maintenance worker sometimes not required to analyze the wiring diagram, maintenance meter wiring, only that is the voltage phase sequence is wrong,  electri cenergy meter in which the three-phase voltage line two phases. Once you turn right, you think everything is normal. This is totally wrong. Now only three-phase three-wire active energy meter when connected via current  air circuit breaker wiring for an analysis. 2 meter wiring is correct wiring analysis phase two components Power Meter Voltage stabilizer voltage and current (symmetric) vector diagram of three-phase three-wire power supply system, generally three-phase three-wire active energy meter to measure Three-phase active energy.