Answer / k.prakashchandra

If not short circuited there will be back emf and hence
impedance can not be measured. Neutral grounding does not
matter for this test

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?

0 Answers  

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Hi, We facing one similar problem in our computers i.e we are newly constructed our design department after that shifted our computers but our computer desktop screen is vibrating. we are conducted our electrical maintainance person he told that is UPS problem, then we changed the UPS also again we are facing that problem in that room only. then we put lcd monitors that problem is solved. But in other monitors why the computer desktop screen is vibrating please give a suggestion to me. Regards, Raju.N.G

10 Answers  

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what do w do when the output of generator is fluctuating?

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while checking the flourscent tube elctrodes some glow is cominag. this type of glow tube working or not working

1 Answers  

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Can anyone explain me the operating principle of the megger tester?( I just know that its diflection relates with the ratio of currents of control & diflecting coil. I need more information as breif as possible)

1 Answers   TCS,

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What iz main protection of mediuum voltage motors and what iz the standard IR voltage of 6.6 and 11kv motors.

1 Answers   GE,

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Refernce currents are to be generated using refernce cueernts how can this be done??

0 Answers  

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we have two 11/.433 kv. distribution Transformer rating as 1000 kva & 500 kva , i wants to run parallel both transformer. both transformer impendence voltage is 5.24%, How can we run both t/f, & how sharing the load

3 Answers  

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WHAT IS THE USAGE OF Buckoltz relay IN POWER TRANSFORMER AND AND HOW ITS FUNCTIONS?

3 Answers  

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which is batter in construction job,ELCB or RCCB?

7 Answers   HCC,

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Name a govt approved university which have 100% online engineering course.

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Hi, I've just got into my electrical engineering course and I need some help with a question of mine here. During a site visit, we were shown a main LT panel which has switchgears, ammeters and different kinds of relays and the distribution network from that panel. In the main LT panel I've noted down the current readings as Ir - 163A, Iy - 150A and Ib - 147A. The Line to Line voltage is 415 V at 50 Hz and Line to Neutral voltage is 230V at 50 Hz. From the above details, how would I calculate the kVA rating of transformer? The primary side voltage of the transformer is 11 kV and the secondary side voltage is 415V and the frequency is 50 Hz.

2 Answers  

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