what is the use nuetral wire8 4920
HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS641
WHAT IS THE USE OF ANTIPUMPING CONTACTOR IN HT BREAKERS8 6020
EXPLAIN THE WORKING OF SERIES REACTOR IN HT CAPACITOR BANKS (FOR VOLTAGES & CURRENTS)1 6057
BRIEFELY EXPLAIN MEGGAR PRINCIPLE2 9251
what is impedence (Z) of transformer, what indicate in transformer , which perameter indicate in transformer5 7353
Motor and transformer working with same principle so why motor rotates while transformer not?7 6025
how to diffrentiate between ac & dc motors from a distance5 18691
what is nuetral grounding2 2949
If a surge divertor is required to be protected by 32 amp C Curve Circuit breaker does this limit the amount of protection from surges that you will acheive588
What is surger vector in 33Kv transmission feeder? We have AC power generator of 8MW which is paralleled with 33Kv EB grid. Some times our HT breaker gets trip off due to surge vector problem. How to over come it? Is there any device to observe the surge and avoid tripping?3 4780
it is possible to rotate the DG engine dc starter with wrong polarity connections? why?
i have total 8 dg sets for synchronizing and 2 buscoupler,1 sectoin dg no 1,2,3,and 2 sectoin dg no 4,5,6,and last section dg no 7,8 ....if buscupler no 1 and 2 is off mode ..than dg no 1,2,3,will synchroniz of another dg sets?
What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?
Why electrical power generation and transmission done in 3 phase system not more than 3 phase ?
Write down the name of 2 lady Bir Pratin of Bangladesh
following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?
On what basis the the size of Lightning arrester for buildings are selected ?
how load of a turbo generator can be increased
description about dry type transformers
define the active power?
what is saturation kit?which use above 15 kw motors panel side.
How to calculate the sag of OPGW during stringing???
Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.
Why the field rheostat is adjusted such that the voltmeter reads 380V
why the neutral line is not giving shock to us if we touch it ?