Befor synchronissation of Generator what test to be carried
out.pl.specify with reason.
- 3 Answers
- 5569 Views
- Kanoria, I also Faced
- E-Mail Answers
Answer Posted / kj
Answer one is mostly correct. Two other factors are important. 1) the winding type (e.g. 2/3 or 5/8) as this can affect circulating neutral current. 2) phase angle at time of synchronising must be within limits to prevent high currents to pull DGs into synch.
For answer two - load sharing equipment can allow DGs of different ratings to be used in parallel. Frequency is important not RPM. The number of poles in an alternator can vary requiring a different RPM for the same frequency.
Another important factor iis governor response to load changes
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
how to calculate cooling requirement of datacentre from electrical load?
what is counter poise conductors
what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end
single phase power supply give to separate one steel coup with water, what reaction create
i need list of swg(standard wire guage) or area of conductor v/s current carrying capacity of conductor copper & alluminium...
why output is out of phase in case of common emitter?
what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?
What is a surge supressor why its is used in synchronous generators
What is clock position of Transformer?what are the clock positions are there?and what is different of them?
how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets
Is there a standard depth of gravel fill in Substation Switchyard? Please give a design/drawing. Thank you.
what causes contact chatter when there is no demand on the air conditioning unit?
How to calculate the Efficiency of Chiller
-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.
in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.
