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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

1. What is differential relay? How it operates?

3 6211

How to calculate the Short Circuit Impedance in Transformer?

3 8002

What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

2090

While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply?

2 6519

What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

2051

Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?

2 7373

Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient?

3 19356

. What should be the minimum and maximum ohmic value for earthing?

1 4709

Why DC Currents are not used in transformer?

4 8256

What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

2 4926

As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?

3 7180

How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

2 4990

. Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV, 20kV, 30kV?

3 10699

Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it?

3 8031

Explain why the Voltage drop will happen in 3 Phase line?

2 5685


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Define conversion efficiency of a power amplifier.

1315


Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??

2118


transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?

2154


When we connect the large capacitor bank in series ?

1155


Explain how to determine capacitor tolerance codes?

1275


For high frequency application we use which transformer?

2020


What is the difference between multimeter

2037


what is the use of expulsition protective gap in 11Kv line.

2195


How we calculate the size of ht cable for any transformer

2141


What is meant by Im=30mA@Vk/2. How to know the kee point voltage for CT design

3524


Define gain margin?

1252


What are the disadvantages of autotransformer?

1172


1. How many types of mangers? 2.How many types of capacitors? 3.pls tell me normally types alternator problems?

2418


I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

2639


How to select a contactor? How many types of contactors are available

3356