Answer / senthil

both are the rectifier,diode is conducted in forward
direction only,It opposes the reverse direction ,but Zenor
diode will conduct only in reverse bise, It wont conduct in
forward bise,we can use for Voltage egulator

In India why is the supply frequency 50hz? I need a particular answer for it..

3 Answers  

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What is trickle charging system?

2 Answers   Absotherm,

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why rating of motor in HP

2 Answers   MSL,

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how calculate kva in to kw

1 Answers  

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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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Railway Basic electrical engg technical question with answer

1 Answers   Indian Railways,

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On a 10 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 65 AH). What Shall be the current rating of DC MCB ?

6 Answers   RR, TNEB Tamil Nadu Electricity Board,

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why we use to transmit the power in three phases intead of single phase ?

5 Answers  

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for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

0 Answers  

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what is the knee point voltage ? what is differtial rela? what is impedance and % of impedane? what is the postive phase sequance ? negative phase sequane ? and zero sequance impedance ? what is sortcircuit calculaion? why take calculation? define stabilty test ? why? what sentivity test? define merz protection ? what is the burden ? class 5p10, accracy, metering ct take knee point voltage test thet time what heppan why dont take knee point test to metering ct?

0 Answers  

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Which type of moter is used in trains, what is the ratting of supply used explain Working principal?

2 Answers  

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What is Bolted fault?

0 Answers  

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