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HR-
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Q.2 Why u choose Power sector as ur carrier starting not any
other sector ??
Q. 3 What think abt NTPC ?
Techincal Questions:-
Q.1 about Vocational Training……What u did , see the main
equipments….etc
Q.2 Why a transformer Noise during its running condition ?
Q.3 about transformer oil material & Test name for the
measurement of its dielectric strength & wht will u do if
its dielectric strength goes low ? ……..some discussion type ?
Q.4 What is relation between transmission lines &
Communication lines ?
Q.5 Which Machine u will prefer to use at a place where
flammable gases are coming out & why ?
Q.6 how fault in an electric system is detected & hw
protection of equipments is done ?
Q.7 Why we didn’t feel electric shock in an electric train ??
Q.8 Anything u want to ask from us ??
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what is the difference between high impedance and low impedance circuit?
why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?
What will happen if primary of transformer is fed with Square wave instead of sinsoidal wave ?Will it operate or Not?
last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why?
ON WHAT BASIS LOADS ARE CLASSIFIED AS RESISTIVE,INDUCTIVE AND CAPACITIVE LOADS?.GIVE PRACTICAL EXAMPLES FOR EACH
What is the general power consumption rating of CPU CRT type and Flat type, Monitor,Printer, projector, Scanner?
Whats the frequency used in Rodents Repllant System????? What is the Diff btw Infrasonic & Ultrasonic Frquencies???
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.
how to design the heater in temperature control unit to heat 50KL of water?
What do you mean by boost voltage in case of battery charger?
How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point
I am in last year of Engineering.I want to apply for ONGC on GATE based score.They require Certificate of Competency as Electrical Supervisor.How can i get this certificate so I can apply for AEE(ELECTRICAL) in 2016
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