Question { 6285 }

What is the Procedure for selecting a Cable, Breaker and
Transformer for particular load.

Answer

mostly cable size is selected according to the load equipments,it is depend on the equipments, if my equipments is three phase ,so the current is difference from the single phase equipments,in a three phase circuit , 1 mm2 three core copper cable rating 4-5 amp.,and aluminium cable is taking only 2-3 amp. only.temperature of the atmosphere where we use it, is very important for the right cable selection

Question { 4364 }

what is slip ring induction motor? How it works?

Answer

it is a type of induction motors ,it is used where ,there we need high torque.it have a moulded slipring in it's rotors , and it's rotor shorted through the resistance box, and we can verying it's speed.it is used mostly in cranes in a industrial areas.