Why ELCB trip, when neutral touch with ground?
It is RCCB . when neutral touches the ground , a portion of
neutral current flows through the ground also,creating
current imbalance in RCCB
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The armature of shunt dc motor has 0.8ohm resistance and motor is to run on 120V circuit.If motor is suddenly thrown on circuit while armature at standstill then current drawn by motor will be??Also back emf in normal running is 110V
why one pin of plug pin is longer than other two? In some mobile chargers one pin is made not conducting .Why?
how much earth resistance consider to commissioning the transformer?
Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?
why three phase system is not preferred in aircrafts power cckts if yes than explain reasons?
why can the rotor of 3 phase slip ring induction motor not be a 2 phase rotor?
What is the relationship between the sending end and receiving end?
all electricals questions
How do we calculate tranmission line losses of a 132 KV tranmsission line. Please give some quick tips?
what's the outstanding feature of universal motor?
why we can stote dc? why we cant store ac?
Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?
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