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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..

2171

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 11269

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

2 8197

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 7013

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 3731

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

4 8671

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

1 8824

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...

2050

what is mean by dry frequency

2466

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?

2152

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Siemens Electrical Engineering Interview Questions

Siemens Electrical Engineering Interview Questions (189)

Un-Answered Questions

Define db2 and its databases?

1059

WAHT IS THE USE OF TAKING IDOC FOR DATA TRANSFER WHEN WE CAN DO IT THROUGH OTHER MODE

2474

What are the features of ado.net?

1045

Wt is the diff bw BPEngine and Integration engine?

2073

What is cmodel class in yii2?

What is row state?

989

what is proc Index? and what is proc document?

2723

what r the job openings SAS for fresher graduates !

2458

What is mergers and acquisitions?

1121

How would you check if a variable is null/undefined?

968

What is ipc for pcb?

935

What do you mean by the term 'normalization'?

1214

When does a 'this' pointer get created?

1106

what are the shine-dalgarno sequences in organism other than E.coli.?

5554

How can you mark a test case as failed by using soft assertion?

900