I have a motors maintenance manual withe following information regarding insulation testing of 3 phase motors:
Quote:
4.1.2 Measurement of insulation resistance
During and immediately after measuring, the terminals must not be touched as they
may carry residual dangerous voltages. Furthermore...
I have a question that is posing a problem regarding calculating the mains input power being consumed by a 3 phase induction motor that has the following parameters:
20HP
400Vac 50Hz
PF 0.9
Efficiency 0.85
I was led to believe that is was simply 20HP x 746W = 14.92kW but I think this is wrong...
