Is anyone able to explain the purpose of undercurrent protection in a 5th harmonic filter.
With reference with the attached schematic, why are the highlighted CTs installed in the resistance circuit of the filter and why would a low current in this circuit cause a fault condition? Is it just...
Does anyone know as to whether there is a means to reduce the resonance noise produce from a AC solenoid (in this particular case the solenoid is a undervoltage release coil installed in a circuit breaker). I have been told by the manufacture that the coil is 240Vac 50Hz rated and that the noise...
