Answer / dhaval patel

In 220/132 Substation CVT use in Place of PT. Role of CVT
is metering, Protection and PLCC purpose.

Answer / sanjeev kumar sagar

In sustation which rating is 132kv or more CVT(capacitive voltage transformer) are used on the place of PT because at this level of voltage PT size is very bulky and it is uniconomical.if you can see the SLD of CVT two capacitor in series are connected to drop the high voltage.
CVT working all thing metering,protectionetc like PT

What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.

0 Answers  

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what is the impedence

1 Answers   Al-Othman,

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how we arrange the hv side with delta connection in case 33/11kv of transformer.

0 Answers   Jindal,

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why are the likely reasons for bochholz & pressure relays oprate due to a internal fault but not differential relay ?

2 Answers  

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do we use neutral grounding for resistive balanced load? if we use what happen?

0 Answers   NFC,

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what the effect will occur if we increase the airgap in induction motor

4 Answers   IES, Tanfac,

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What is meant by reset level of the relay?

0 Answers  

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Why Closing coli supervision is not required for Circuit breaker.

1 Answers   JSW,

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calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.

0 Answers  

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Why we are designed only 11Kv and 6.6Kv Alternators, not 33Kv Alternators and Power Transmission side we are designed only 220kv, 120kv, 66kv, 33kv, 11kv, and 440volts, not 20kv, 50kv, 100kv.

2 Answers  

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As per which Indian Standard induction motors are manufactured?

2 Answers  

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Z transform is use when system is not a) converges b) diverges

0 Answers   CCP,

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