Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Ratings of power transformer,Distribution transformer.

1196

why we are using Load factor?

1436

what is legal process of dg set?

Dutron Polymers,

1171

why three phase capacitor takes unbalanced current in capacitor bank?

Aggreko,

1091

In the market there is availability of MCCB & ACB (800A), So, Where i can use MCCB & ACB for the same Rating?

1 1663

How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.

1128

Why the symbol of register is "zig zag"

Suzlon,

1225

why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.

Alstom,

1081

what is v/f control in VFD?

1159

two phases with neutral supply can be taken in 3C X 10 sq.mm cable .

SPCL,

1071

how to calculate insulation level of transformer?

1186

What is the difference between line drop and percentage line drop?

Suzlon,

1160

Alternating voltage and current is which type of quantities?

1 1577

difference between high and low impedance BUS BAR relay??

1157

3phase cable calculation formula by motor load

1106


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Un-Answered Questions { Electrical Engineering }

either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?

1490


what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)

1642


ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

1616


How to calculate Air conditioning capacity for a telecom BTS shelter?

3112


What happens to voltage when current through the inductor is constant?

759






What current position are you holding in your current company?

1684


WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.

1772


what is your aim

1538


Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?

796


Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?

1580


when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??

1608


What is the meaning of loop in transformer

1284


What happen when neutral point connected to core balance current transformer? (Neutral point of an alternator of a 180KVA DG. Neutral point connected to CBCT means enter to the CBCT)

1915


Igfet is a

1272


how to calculate energy of 3-phase motor?

1626