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Siemens Electrical Engineering Interview Questions

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at meter room 50 hrc switch installed,but there are not get earthing proper,so what happen?and 11kv transformer out put going in to hrc main 400a three nog each? so earthing is require for all switch? (some customer made earthing at there home.)

1911

Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..

2172

how to select the isolation tranformer for siemens 802dsl cnotroller

2069

What is CRT (Contact Resistance Test) for Isolators or Dis- connector Switches? Why we performed it & whats the Testing procedure.

1 11273

What is Hi-Pot Test for Grid Station HV Equipments?

2 8199

is earthing is necessary if we use armoured cable

1 5788

How we can make sure cable size of LT cable without any parameter.

2 7016

Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box

2097

If we increases the %impedance of Transformer then price of Transformer will increases or decreases.

1 3734

How to work star delts method in the case of single phase motor?

4 8676

How to do the REF Stability test for power transformers in Site?

1 8826

In synchronous motor, how the field current is related to armature current..i know its inversely proportional..but concept wise...i was nt clear....pls help me...

2052

what is mean by dry frequency

2469

how is the testing of an REF relay? what are the test REF circuit having?

2008

We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?

2154

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Siemens Electrical Engineering Interview Questions

Siemens Electrical Engineering Interview Questions (189)

Un-Answered Questions

How do I undo f9?

674

i have done B.TECH in che.tech.and doing MBA . why you doing mba why u have not join any job.

2303

What is Architecture Explorer?

1436

Tell me about your work experience? How has it prepared you for a career at Aeropostale?

1162

Differentiate between a hyperlink control and a linkbutton control.

989

What is a Multi-Layer Perceptron (MLP)?

What is attributes in css and how they used?

615

What is hyperlink? Why it is used?

886

electromechanical relay type identification example : type=tjmh t-stants for j- m- h-

2459

Is it possible to make an array volatile in java?

924

Can a spreadsheet be a database?

719

How to use group in the calculated field?

439

What is the advantage of OOP in java?

1158

What are su22 t-codes used for?

1144

Explain testability?

1173