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 Categories >> Engineering >> Electrical Engineering
 
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Question Asked @ Answers Views     Select
how much resistence in proper earthing?    5  1848
why motor run slow speed in star connection?explain how?    3  3227
how to check 3phase motor winding with help of multimeter?    2  2903
I have current, kva How can calculate kv?    3  1988
Why pmg used in electrical generators for excitation.is there any other method without pmg ?    1  1340
What is mean by Sensitive Earth fault & what are the effects enteg-technologies   1  1696
what happens when we apply dc to a transformer siemens   6  3790
Difference between HRG and NGR. Are they both the same thing    0  1010
how does an open delta transformer works    2  1766
There is 3phase power cable from 1 point to the other point which is 100m away. Two point equipped with power meter and recorded 1st point is 205kW while the 2nd is 202kW and each phase average carry 400amps. To calculate the resistance of the 3phase power cable, is the formula using will be P=I2R?    3  1363
When we change the tap position of 10MVA transformer it suddenly tripped with Out of step indication and also with Static differential relay indication, Transformer Bucholz relay indn and Low oil level indication. Before 1 week the same problem occured by changing the tap position. but at that time only oltc bucholz relay activated. After testing the TxR Relay team & PET team cant find any solid reason. The values are ok also. So plz answer wat's the reason for this incident? anybody plz help.    3  2424
I If i have 2kv ups in which 38Amp *8battries hou many hour's back up i get from 600Watts    2  2157
What is the name of transformers oil filteration equipment? reliance   0  352
what is parellel power factor correction? hcl   2  1045
why use in & out Diesel line in dg set. nhpc   0  339
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Un-Answered Questions
 
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I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason? 275
what i the full form of ABS 111 in transformer. 1209
how can i reduce sparking without stepdowning the voltage 887
we know the value of the power factor is 0.8, we know the power factor is not depends upon the load ,then why we cant design the power factor in transformer ? 145
how to deside the capacity of chock for drive? 322
in three 3.5 core aluminium ug cable. one cable is used for one phase by shrting R,Y and B wires and other 2 cables used for Y and b phases. balace 3 neutral wires are made common and connected to load. suddenly neutral current was more than line current what is the reason behind this? 291
if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her. 446
How we calculate the current carrying capacity of H.T. cabel? 394
Can anyone explain me about the RLC based Impulse high voltage generator and how to and operation of Series resonant High voltage reactor...? 241
how load of a turbo generator can be increased 318
why starting current is high and resistance is almost 0 during the starting of motor dc motor...? 83
can we ran equipment up to 10kw between phase to grounding/ earthing. beside above can we use grounding instead of neutral. . 672
how to carried out DAR test in 11 KV Alternator ? 471
EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long? 245
boiler is running in rankine cycle and deisel generator is....? 383
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