why the earth pin in a 3-pin socket is longer and thickest?
Answer Posted / rajesh tanwar
The earth pin in the socket is longer so that the phase and
nuetral get disconnected first and earth is disconnected
very last to gave a sufficient protection.
Is This Answer Correct ? | 8 Yes | 2 No |
Post New Answer View All Answers
what is servo motor and how to work it.
In EDO ACBs what is a purpose of closing coil and motor, what is the operation of these devices are they inetconnected. means if we give supply to motor and by BCS we charge Closing coil,what exact is operation is and how it charge a spring of ACB. Sir if anybody has an wiring diagram please send me the link to operate and EDO breaker.
I am applying for NTPC examination.Can we please provide previous paper to my mail prasad.chintala108340@gmail.com
we have earthmat at 110KV substation.we would like to take earth resistance.b some says that by connecting earth megger terminals (C1,P1) at middile point of earthmat (at riser) will cause voltage gradient at other earthmat nods and dont get exat earth resistance.when connecting at end nods will get exat value . is it correct .please explain
A motor running with lenze frequiency inverter stops if I REDUCE SPEED with 25% load.If I run it in High speed and medium speed running smoothly with full load.please help me to solve it.
What is the equivalent circuit of a transformer and its vector diagram?
How efficiency of thermal plant can be improved?
11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter
which one is more efficient, torq, power & ecnomy with the same frame size AC motor / DC motor?
in basic 2 phase will short means tripping the power but spot welding 2 phase shorting but not tripping it will welded why.....(Q)
What is the differance between 2 dc motors of armature voltage 660 v and 440 v?
How can calculate the earthing strip of Copper/GI for rating of 30kV,discharge current 10KA Lightning arrester.
Explain the experiment on ward leonard method of a speed control on a dc shunt motor with an suitable circuit diagram.
Why we use Electrical energy rather than any other type of energy, mostly? Explain behavior of open secondary CT and short circuited secondary PT in energized condition?
what is the difference b/w absolute encoder and incremental encoder?