Question { 3033 }
how to calculate 3 phase clearance in Tower line , 33& 11 KV
Line and LT Line.
Answer
Is This Answer Correct ? | 0 Yes | 0 No |
Question { Gannon Dunkerley, 5863 }
our company have 750 kva oil transformer.still we have
facing a problem that is when voltage is 11.5 kv coming
from HT side then LT-side voltage is 420v or above at tape
1.please give me best solution to decrease the voltage
Answer
Is This Answer Correct ? | 0 Yes | 0 No |
Question { 3331 }
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
voltages 230v.
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
also ok.
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???
Answer
Is This Answer Correct ? | 0 Yes | 0 No |
Question { 2103 }
in my observation NCT is used at Karnataka power
transmission. why we are not used in andhra pradesh
Answer
Is This Answer Correct ? | 0 Yes | 0 No |
Question { 2939 }
Our Slip Ring Induction Motor Frequently tripped By Earth
Fault While Starting time and in Normal Operation Time also
Kindly Let me Know the Reason. Application Ball Mill -
Cement Mill
Answer
Is This Answer Correct ? | 0 Yes | 0 No |
Question { Gujarat Alkalies and Chemicals GACL, 9262 }
What is the basic difference between AVR and stabilizer?
Answer
Is This Answer Correct ? | 2 Yes | 1 No |
Question { 4994 }
Why D.C Voltage used in Meggering...as well as in Hipot test?
why not A.C?
Answer
Is This Answer Correct ? | 1 Yes | 0 No |
Question { 4626 }
what is mean by potential and potential free contacts
Answer
Is This Answer Correct ? | 1 Yes | 0 No |
Question { 2308 }
in ct secondary one terminal is connected to earth why?
Answer
Is This Answer Correct ? | 0 Yes | 0 No |
why it is necessary to short and ground of a current
transformer secondary side?
Answer
Is This Answer Correct ? | 0 Yes | 1 No |
Question { 3466 }
how could we findout the lightning arrester failed or not in
live circuit? Is there any instrument to measure the high
voltage at the time of sky lighting?
Answer
Is This Answer Correct ? | 0 Yes | 1 No |