Electrical Engineering Interview Questions
Questions Answers Views Company eMail

In a 3 phase 4-wire system. For a 3.5 core cable if all loads are single phase and balanced, what will be neutral current? will it be sum of all phase currents? Or it will be zero? And if loads are unbalanced what will be neutral current?

1244

explain the functions of main isolation switches

Zesa,

1187

please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.

Al Rasikh,

1265

The synchronous machine excitation system explain

1320

Any formula to calculate neutral current in 3 phase 4 wire system

1 2134

What are IP protections used for electrical panels, JB, equipments installed in explosive zones like Petrochemicals, Oil & gas

1213

In my 3 phase 4 wire electrical system N to earth voltage is 0.08 is it ok What is standard for it ?

Kay Bee,

1 1578

What are the difference between normal application Transformer and Solar application Transformer?

1224

how to handle 2500 kva transformar

1128

why are transformer rating in MVA

Suzlon,

2 2822

a starter used for squirrel cage induction motor?

1204

Instrument connected to a single phase supply

Alstom,

1239

What is the safe limit of voltage between earth and neutral in india.

Incepta Pharmaceuticals,

2 2835

Power systems

LB Engineering,

1278

What is the possible cause for failure of lightning arrestors in outdoor substation under normal condition

1252


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What test must you do before powering up a circuit that you have been working on?

1385


What is the function of NER and NET?

2010


How to calculate the fuse rating depend upon the DC circuit?

2380


How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?

1437


why the NGR (neutral grounding resistor) always OFF during DG off?

3061






Explain the role of a car driver as one of a feedback mechanism.

728


What are the weight of 800KV DA,DB and DC type tower ?

2699


1.What is captive power plant? 2.What is national grid?Give brief idea.

1694


why we are not giving the zone 1 trip command to the master trip relay

1074


Direction of flow of active power and reactive power with logic?

1299


What is the unit of charge and current?

617


Which do you think is the most significant cause of energy loss in a factory?

1756


what is the concept of directional power?

1504


what could be the RMS value and average value of a 4 phase sine wave?

1413


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

1508