What are ampers.30kw motor.440volts.

5 Answers   Pam Glatt,

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What is the lower limit of megger value for 66/11KV power Transformer ?

7 Answers   MSETCL Maharashtra State Electricity Transmission Co Ltd, Torrent Power,

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whats the advantage and disadvantage in TUMETIC mdel transformer

2 Answers   ABB,

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how an electron flow in a wire. can it flow like a car running on the road?

2 Answers  

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will aqatic animal die if we ground the wire of three phase instead of grounding to earth

2 Answers  

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why transfromer rating gives in MVA Or KVA? Why not in MW or KW?

6 Answers   GIL, Siemens,

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3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw

0 Answers  

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How two nos. 130 kw D.C motor get synchronise using D.C drive.

0 Answers  

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1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)

0 Answers   L&T, PK,

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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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What will happen if a dc source is given to a tubelight. Will it work or wont it work....

0 Answers  

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what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

0 Answers  

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