What is min and max voltage between earth and neutral/phase
if it perfect earthing?
- 37 Answers
- 247344 Views
- Epoch, ISS, ITC Infotech, L&T, Power Works, Statex, Sterlite, Wipro, I also Faced
- E-Mail Answers
Answer Posted / abdul gafar
most of the 3-phase stepdown distribution transformers
manufactured in india are 11KV/433v. assuming that the the
voltages are measured at LT Side of the transformer and
earthing is perfect ( i.e. when meggered with 500v megger
the resistance offered by the earth is zero)then,
earth to neutral= Zero
any one Phase to earth= 250V
& any one Phase to neutral=250
(the value 250 is arrived from the fact that the voltage
from phase to Phase is equal to 1.732 times that of the
voltage between phase to neutral)
| Is This Answer Correct ? | 0 Yes | 6 No |
Post New Answer View All Answers
Maintenance of transformer???
describe the Operation of induction generators from bus bars
what is the use of permanent magnet generator in exciter
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
i want to learn control schedule for 11kv panel? can any one send the detailed control schedule?
do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....
what is meant by k-rating in isolation transformer?what is k9, k14 stands for?
does a DG set has low fault level as compared to that of a transformer.If yes then why.
1.dg on load alarm/stop alarm... 2.dg on load. piu alarm alarm kaise chek krte hai
Stator of 3-phase IM has 3 slots per pole per phase. If supply frequency is 50 Hz, calculate the speed of rotating stator flux A 1000 rpm B 500 rpm C 1500 rpm D 1440 rpm
advantages and disadvantages of inverse definite minimum time RELAY
what is mean by drives?
How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.
how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.
What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?
