Answer Posted / surya
earthing & neutral both are grounding electrode but in case
of earthing always the potential be zero but in case of
neutral the potential is truely dependent on either the
load is balanced or not.if unbalanced load than somevoltage
must present in neutral wire.again we use earthing as
neutral for load but the condition is the resistance of
earthing must be low or on zero potential.
| Is This Answer Correct ? | 7 Yes | 4 No |
Post New Answer View All Answers
full form of flry b
Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?
How to calculate fault level of 11 KV system
Why is back emf used for a DC motor? Highlight its significance.
Pls Breifly explain about UPS (Inverter,Reserve,Rectifier,Float voltage,Boost voltage).
Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.
draw the block diagram of fire alarm?
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field
In constant power region of 3-phase IM torque-speed characteristics, if frequency increases slip A does not alter B decreases C increases D none of above
1600kva capacity Transformers how the bucholz relay,Oil temperature,winding,surge relay relays setting are to be done
What Is HO factor in power selection
Explain the operation of variable frequency transformer?
What should be the percentage increase in length of the dead end clamp for bus bar conductor (Hawthorn) after hydraulic pressing and what should be the applied pressure?
what is the formula for computing cable tray size & capacity