why neutral of 6.6 kv star connected sq. cage induction
motor does not get earthed, though for earth fault
protection it is must.
Answer Posted / venkatesh
the fundamental condition for connecting neutral to earth is that the neutral voltage should not be higher than supply potential .but in star connected squirrel cage induction motor the neutral potential was reached uplimit potential during starting.so, neutral was not connected to earth in that case while in transformers there is no problems of increased neutral potentials. though they were similar in some aspects
| Is This Answer Correct ? | 0 Yes | 3 No |
Post New Answer View All Answers
what type of motor used to move a 1 ton gate? and relate ratings with load.
what happens if earth of 33kv cable is not connected to earthing pits? please send this query's answer to ngrm.sudha249@gmail.com
if i get a drop in my 1st year and the i clear my 2nd year and 3rd year all clear and i dont have any back logs so can i be able to sit in campus selection??
state working of halogen lamp?
What is the difference between circuit breaker and isolator
how r charge carriers produced
how to minimize earth resistance upto 2Ω, if the resistance is 6 Ω ?
How npn and pnp transistor works
How many types of oil using in H/T & L/T Oil Circuit Breakers. need Explenation ?
What is meant by system?
how you will decide the distance between the power transformer and its fencing
Why back emf used for a dc motor? Highlight its significance.
we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards
Why strting torqe high in inducation motor?
Can anybody tell abt concrete encased earthing or grounding?