Answer / k.prakashchandra

With OLTC ,voltage variation is in increments which may not
be the requirement or may affect unit diff relay . When
the required voltage can be obtained by varying excitation
,OLTC is not needed .

According to ohms law voltage proportional to current, then why should current rating is low with high voltage rating in transformer?

5 Answers   KEC,

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what is the differance of acb and mcb and mccb

12 Answers   MacAir, MDS,

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dear all, How do i increase UPS (1000VA)backup time ? i have connected 2 12v wold you please 120 aH battery externally. ups charge the lead acid battery only 12.7 volt. backup time only 10.00 minuts and gose off. can any one of you help me?

1 Answers   Technomax, ups,

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what is the difference between EMF and potential difference??

3 Answers  

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what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

0 Answers   ABC,

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why we test the core balance of the transformer?

1 Answers  

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Why transformer used in UPS??

0 Answers   JLL,

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1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.

0 Answers   ABC,

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What is shutdown of electrical sub station?

0 Answers   UCEP Bangladesh,

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Explain mechanical rotational system?

0 Answers  

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what convarts RRA in alternator ,AC to DC or DC to AC,

1 Answers   Birla,

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Relation in between KWH & KVAH for Electrical consumption unit & how we can relate if KWH is lower than KVAH

11 Answers   Deepak Fertilisers, Torrent Pharma,

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