Electrical Engineering Interview Questions
Questions Answers Views Company eMail

In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

PPIL,

1269

how to operate and maintenance of 1500 kva diesel generator set

Supertech,

1330

If I have Energy Meter Ratio as 100:5 & Also I have CT Ratio as 50:5 then what will be my multiplying Factor(M.F.)

1533

what is FS cable?? Difference between FS and FRLS??

Multivista Global,

1 8076

What is speed mode?

1238

what maximum range of star & delta in hp or kw ?

Makkah Hilton Towers,

1260

what is the difference between OSR and BUCHHOLZ relay of transformer?

Bhushan Power Steel,

1 7137

if i am in front of transmission line how to know that current direction without any equipment

1243

i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?

1341

if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

BSNL,

1150

how was your last weekend.

HCL,

1325

what is difference between speed mode and torque mode in motor?? explain in simple words please.

Toyota,

1138

If more than rated DC voltage appears across trip coil of the breaker, what will happen? e.g. in 110V DC circuit system, if voltage across battery terminal showing 121 V

1182

How to calculate voltage drop in copper and aluminium cable? I have laid 240Sq.mm Aluminium cable for the length of 600 Mtrs in 1 Mtrs underground. Normal load is 150A. Transformer is 630KVA, 6.KV/433V. But, I am getting only 395 Volts when load. How to calculate voltage drop and what is the permissible voltge drop for this circuit?

1 1746

11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?

1199


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Un-Answered Questions { Electrical Engineering }

How cable from Kit-Kat to main switch, from starter to motor are designed?

1564


A double circuit with dog conductor 66KV Transmission line from wind farm evacuation to feeding substation having capacity of 25MW for transmission. Can same transmission network be considered for further expansion of Power & how much in MW. If we need to expand next 10-15 MW more will there any augmentation is required in transmission network? Kindly reply asap.

1672


What is core CT & it's function?

1728


Differentiate between magnetic field and magnetic flux?

619


why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points

1597






hi....I am from india..i have completed my engineering in electrical and electronics field with 58.4% and my IELTS score is 5.5 bands....Recently i received my I-20 in computer and information science from Troy university in Alabama.On 18th i have a visa interview can u please tell me what type of questions i have to answer ??????

1393


what is meant by IGBT how they differ from tyristor ?

1913


how to modify DOL control panel into Delta Y connection?

1473


hi, could someone help me to find a control design for syncronising panel .

1259


what is mean by Digital Logic Meter (DLM)

1851


What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.

3004


can we install HT panel & LT panel side by side or how much clearance is required ?

1076


how the B-H loop obtain under the static condition

1801


y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..

1520


what is protection class current transformer.

3415