What is the difference between electric and electronic circuits?

11 Answers  

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Dear All kindly let me know that I know about the DG Rating for Example 150 KVA,Now how i will know that how much Ampher load it can offoard.

2 Answers  

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What is the percentage loss for aluminium wire for HT line more than 11KVa

0 Answers  

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how to calculate the tarriff for an industry whose kva demand is 10 mva

0 Answers  

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wat is the importance of reactive power in power generation.....if it is zero means wat will happen to system........

22 Answers   Bhel, Jindal,

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On load tap changer (OLTC) explode? Transformer Vector group: Ynd11 Rated Power: 353MVA Rated Current: 693A Voltage:294/20KV OLTC Type: T III Y1000 110/c 12193w Max Operation Current: 295A Step Voltage: 550V Arrangement in Tx windings: Y Connection Problem: Damage of Unit 1 Generator Transformer On Load Tap Changer (OLTC) Description of Incident: 9.00 a.m. :- Generator No Load test on excitation system started 10.30 a.m :- Carried out AVR change over test 11.30 a.m :- Preparation for Generator Manual Synchronizing test 12.00 a.m :- Manual Synshronizing test started. Observed incoming generator voltage higher than running voltage. CECR operator operated Generator Transformer OLTC to bring down the incoming generator voltage 12.03 a.m :-Generator Transformer abnormal alarm operated at Gen.Control Desk (CECR) CECR operater at Generator transformer bay informed that the transformer oil splashed out from OLTC. CECR operater informed that he heard explosion inside OLTC. Observed Oil level & Oil Flow alaram operated at Tranformer local annunciator. 12.05 am :- CECR operator 'Open Gen Field Breaker” 12.10 a.m. :- Elec1 team inspected the OLTC and found the OLTC rupture disk was broken and oil spilled at OLTC area. - Elec1 found the OLTC top cover bulging. Do anyone know why and possibility cause happen in this OLTC.

9 Answers  

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how much battery need for 2kv online ups for 2hr backup

3 Answers   Eaton, Emerson,

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when the Transmission and Distribution network where is the "feeder" lines are located? and why should be used in T&D network.....

0 Answers  

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How to select HT/MV cable size ?

0 Answers  

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Why induction motor is widely used in industry

0 Answers   BARC, Honda,

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Where is the best place to mount  distribution panel in a house.

0 Answers   Wantro Technical Services,

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we have a 2000kva step down transformer at our site. The HT side is charged from 22000V. So the primary current will be 52.48A. So why the HT breaker(SF6 ABB) is rated of 1250Amps ?

2 Answers  

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