What is Harmonic affects in power system. what is unit of harmonics and how to measure it. how much value should be in power system.

1 Answers  

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We have isolation transformer 25kvA & ONLINE UPS 15KvA (3PHASE I/P,3PHASE O/P)where isolation should have connect,before UPS or after please brief.

1 Answers   DRJ ARDE,

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after syncnhronistion how generator speed controlled by grid

3 Answers  

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Alternator rotor earth fault relay circuit

0 Answers  

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which is the slowest motor? and wt is speed ?

1 Answers  

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When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?

0 Answers  

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what is the use of choke on tube light fitting

37 Answers   Bhel, Dharma, HSBC, TCS,

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What is the difference between synchronous motor & asynchronous motor

2 Answers  

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How does a VOLTAGE OPERATED DIFFERENTIAL RELAY work??

2 Answers  

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what is TPN

5 Answers  

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what is the difference between LT and HT power supply?

26 Answers   Center One Mall, Central University, JSW, Siemens, Suzlon,

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1)Why electric shock is feel ?? n in a Electric Train why we didnt feel that ? 2)What is the reason for transformer Noise ?? 3)What is relation b/w Transmission Lines & Communication Lines ? 4)Which material is used for making Transformer oil & How u measure its dielectric strength & Name the test ?

14 Answers   NTPC, Tata Power,

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