Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is electricity

APGenco,

3 5468

to operate air conditioner of 1.5ton what power of generator is required

Bharat,

1 15483

wich types of current?

2 3791

what is power factor in ac ckt ?

5 5451

How to check the LM324 Ic

8034

How to check op amp using multimeter

1 9103

what is errection pcbs?

1527

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

APCPDCL, Voith,

1730

Dear sir, we are getting voltage fluctuations suddenly for 2 or 3 minutes again it becomes normal. we checked each and every connection some times we are getting 110 volts like that from earth to neutral again it is reducing we are getting supply from 45 kva DG set give earthing properly.

Triveni,

3 5371

how to measure the transformer resistance values(dyn11)?and howmuch the minimum value?

1672

what is mean by parallel operation of permanent magnet generators

PSD,

1484

What is meant by IP55 motor.Where it is used?

Zuari,

2 5912

What happen Grid EARTH plat got cut.

Zuari,

1751

What is the difference between MCCB & ACB Where it can be used

5 6836

what sq.mm copper pvc wire need for ac load current 25amps for 230v ?

Khadamat, Siemens,

4 6554


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what is the VA(Volt-amphere)? define with calculation?

788


what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?

1946


Is there a possibility to use such a treshold voltage for the NMOS part of a CMOS circuit that during the switching it will start conducting only after the PMOS part will be already closed, by this eliminating the leakedge current? Please note, I'm not asking about the well bias in standby mode, but about the "antileakedge" measures during normal operation.

1581


why we r not earthed Control cable of C.T. terminals

1553


How is the connection of the tap changer on the HV side been made?

1522






What is precision of a measurement?

683


What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines

1284


comparision between ACB and VCB

1927


what are the usual topology of transformers at different substations in the power system and why that particular topology is choosen. what are the limitaions of that topology?

1620


What is the difference between single core 2 wire and single core 3 wire system? Which application we are using this? and for What purpose we are using this?

1863


Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?

1407


HOW MANY TYPES OF FUSE?

1657


What is making & breaking current ???

982


can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?

1569


L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

679