Why transformer neutral earthing? What is advantages?
Answer Posted / balachandra
Neutral grounding and its advantages. ... Neutral grounding provides protection to personal and equipment. It is because during earth fault, the current path is completed through the earthed neutral and the protective devices (e.g. a fuse etc.) operate to isolate the faulty conductor from the rest of the system.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
Is it possible to operate a synchronous 2-poles turbogenerator with a still-in-place faulted bar but electrically disconnected ???? If yes, should I act on the other phases as well ???
how to calculate the change over time for star delta starter for different KW motor?
why connecting surge unit in contactor coil
why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?
which capacity of RCCB used for five thousand watt electricity load?
What is meant by derating factor?
What is core CT & it's function?
How to calculate per unit impedance of transformer?
While testing a ZCT what parameters have to check or measure?
How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ?
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
Difference between shunt, PMG and AREP excitation. Which is the most reliable between PMG and AREP.
A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.
when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil
What is difference between start imitation and start interlock for 3 phase motor protection ?