Electrical Engineering Interview Questions
Questions Answers Views Company eMail

definition of fault level in powersystems?

4 17918

wht is an AVO metre. and whre it is used?

Mayflower,

1 5104

Is there possible to Test Transformer for Overfluxing Capability. Or is there any firm who does Overfluxing Test on Transformer?

2629

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

1513

Explain the construction of the conservator, operation and purpose, and draw the diagram of the conservator.

Siemens,

2018

How to Calculate 11 KV Side Cable size of a 250 KVA Oil cooled transformer

2 20945

What is super thermal power plant? and how it will differ from normal thermal power plant

AK, Suzlon,

1830

Whata are the types of Cables?

1584

what are the differant std sizes of cable trenches?

1524

what r the sizes of CB's? how to select CB's?

1 3307

how can the active power and reactive power of an alternator be controlled?

6 16441

In a closed circuit if two 5volt power supplier are connected in parrel what is the current direction in tihs circuit?

1 2895

WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.

1430

what is the effect of constant power factor to the voltage regulation

1 2675

Current Capacity of 55sqmm & 80sqmm conductor

2 3634


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Un-Answered Questions { Electrical Engineering }

Draw a SLD for main panel for school having connected load of 1200kw and emergency generator 200kw.also show the increase of additional load of chiller 225kw in the lv panel indicating meter postion size of transformer ,cables and capacitor bank.

513


Draw a 230kv two-bus bar system showing the following. 1.Two generators (150MW) each connected through one 15.75/230KV transformers 2. 1 outgoing lines 3. Two 230/130 KV transformers 4. BUS PT's 5. CT

2108


1. Design a counter which counts 0, 4, 8, 2, 6, and repeats using: 1.a using JK flip flops 1.b using T flip flops 1.c using D flip flops

1501


what is High resistance grounding and whatis the criteria for the selection of High resistance grounding

1702


How much inductance or resistance require as a starter in series with induction motor of specific capacity(e.g. 5 hp) ? What is formula for it ?

1488






Please nybody say, weather the result of Bharat Oman is declared or not? Probable date of declare???????

1535


what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth

982


Hi guys! Plz help me to answer the following questions. 1. What are the types of transmission line energy losses? 2. Why are the VLF are used some types of services? 3. What frequencies are used for reliable beyond the horizon terrestrial communication without repeaters? 4. To permit selection of 1 out 16 equi-probable, what is the number of bitis required? 5. What is the most common modulation used for telegraphy? 6. What is the multiplexing is used to increase the capacity of the optic fiber? Thanks

1619


WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO

1828


How to calculate the input cable rating for 10kva ups (3phase input and single phase output and also 3phase output, battery rating 65Ah)provide the formula also.thnx

1769


application s to shunt coil

1492


What are the three major categories of error?

658


Difference between megger test equipment and contact resistance meter test instruments?

900


which is chemical used as in ro water what is difference betweeen multi grade filter&dual media filter

1624


What Normal(Tangent) towers and Tension(Cut-point) Towers?

5198