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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

if we increase frequency of line, then how will string efficiency varies with it.

2 11464

Dear all, Can anybody tell me that how to choose CT for a specific load? I have a 200kw induction motor, which ratio CT should be installed? Is there a formula or calculation that determines the CT ratio for a load? Regards.

2 5056

How to calculate KVA/VA rating of PT or CT from primary & secondary voltage or primary & secondary current?

1777

what is the difference between control transformer and Potential transformer (PT)?

1 3350

is 3-phase induction motor need a starter ? why do it so

Coca Cola,

5 5769

what is the use of the circle diagram

2 4128

what is TRCC

2 11909

How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?

1454

what is brushless generator?

Jk Tyres,

2 3882

Can we perform parallel operation of two transformers when one transformer on load?

3 3611

dear all, can any body explain that how to select an induction motor for a specific mechanical load(inertia). is there any formula or calculation then please give me. i shell be very thankful to all of you. Thank,s and Rgard,s.

1 2204

why secondary terminal of current transformer should not be open circuited?

ABB,

4 8201

In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.

2 3030

Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

1255

which type of motor is used in lift ?

7 8000


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Un-Answered Questions { Electrical Engineering }

what is a synchronizing lamp ?

827


why the colour of insultor stack , petticoat is brown. Is it has some technical reason.

1413


How the frame size of a flange mounted AC induction motor is calculated?

1349


Draw a SLD of DG distribution up to main LT panel?

8513


Why do we perform an open-circuit test and short-circuit test on the transformer?

457






What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?

1153


What is a slack bus?

462


i have 3500 amp load and select current transformer and perches.how i calculate .please understand

1524


12.5 tons a/c is their how much kva generator can recommend to the customer.

1298


Why the symbol of register is "zig zag"

890


What is process of anneling transformer core

1248


what is residuel magnetism. and how order lead acid batteries for 24 volt. emergency lighting system.

1407


What are the main significances of root locus?

481


I want to know Electrical Circuit?

1494


What is the method for testing the differential protection stabilty in generator? When the time of starting What will happen if differentail protection connection wrong means?

1558