Interested to Buy Any Domain ? << Click Here >> for more details...
Why in medium voltage system(3.3kv to 33kv, neutral is
earthed with either resistance, reactance or neutral
grounding resistance?
- 4 Answers
- 10098 Views
- Essar, I also Faced
- E-Mail Answers
Answer Posted / loganath
voltages which are mentioned will be used in distribution
applications where fault current must be limited to limit
the loss of life and machines, hence it is earthed to
through resistance or reactance, earth fault relays must be
very sensitive enough to snip earth faults in these systems
| Is This Answer Correct ? | 8 Yes | 3 No |
Post New Answer View All Answers
Define conversion efficiency of a power amplifier.
(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)
what is meant by skew width in machines?
How to measure power in 2 or 4 or n phase circuit? Please give me a formula.
what is the use of piston rings in the engine used for a generator...........
What is limitedly stable system?
What is pd controller?
We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's
can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?
any earth foult trip the relay but in welding time not trip by earth foult
in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses? the second question is-generation is depends on LV winding? or LV winding design for generation voltage?
Why is the starting current high in dc motor?
how to calculate mf when meter and cTPT detail are given
how can we say that stator magnetic field rotates with synchronous speed?can we derive?
what is zinc diffusion?
