Found some meter load carried, while significant, aluminum disk speed is very low

Meter issues that arise in the use of electricity meter is calculating apparatus. Industrial and life are inseparable from how much power meter measurement. To engage in industrial electricity, I have discovered that some meter load carried, while significant,  air circuit breaker  speed is very low, will not achieve the load carried by the requirements. Sometimes  mcb circuit breaker speed, or even reversed. After checking the meter itself, fully meet the technical requirements of the table.  Circuit breaker  tend to believe that there is no problem as long as the meter and turn electricity meter is calculating apparatus. Industrial and life are inseparable from how much power meter measurement.