| Other Electrical Engineering Interview Questions |
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|hoe to test voltage restrained overcurrent relay?
MEGGER TEST APPLIED ON SURGE ARRESTOR? IF YES THEN WHAT ARE
THE ACCEPTED R VALUE REQUIRED FOR SURGE ARRESTORS FOR
VOLTAGE LEVEL 11KV, 33KV
|In Transformer testing at Shop test we normally test for
vector group, open ckt.,short ckt. but what are the other
test performed for transformer once it reaches at site.For
e.g:if the transformer is dry having rating 1000KVA?
|WHY DIODE IS CONNECTING ACROSS SWITCHES
|Why is the earth fault relay connected to the Yellow
|Is it possible to connect a dYN1 transformer in
parallel with a YNd11 transformer.
|what is carona and how is occur?
|I have a question, I visit 01 site and face a problem,
there is 2.5 ton Air Con working, when air con compressor
is running at that time rectifier voltages are increasing
upto 290-295 v and rectifier is giving main high alarm
(rectifier is APC single phase), before starting compressor
rectifier voltages was 230v. when air con is going off
rectifier voltages are decreasing smoothly at its actual
Load on Genset phases is this: Red-13.5 amp AC (Air Con
load), Yellow-1.7 amp AC (BTS lights etc.) and Blew-4 amp
AC (telecom system load),
Genset phase to phase and neutral to phase voltages are
These are 10 sites having same system and same rectifier
APC brand at every site 02 genset are working but the
problem is same at all these 10 sites.
What will be the reason behind???
|why semicondoctor use in HT cable?
|what happen if we supply ac to the field of a alternator?
|what is the deference between watt and KVA
|WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??
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