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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the major difference between LIBBP & HIBBP.. which one is most preferable..

1245

When we synchronize the Generator BKR with TIE BKR then Gen BKR is hold but TIE BKR is Tripped on Non directional over current but when TIE BKR is Syn. with Gen. BKR then no fault occur so what is the problem

1 1830

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

1 3301

what is the calculation of current when a clampmeter is attached to two phases of any drives.

3 3197

difference bewteen reverse current and alternating current

1066





why transformer rating is in KVA?

4 4842

difference b/w series¶llel

4 4217

You are given 220 V supply source, four wires, an ammeter and voltmeter. There is no any indication or description on meters. How will you identify which is ammeter or voltmeter?

7 6352

what is mean by dual digital protection in the relay field?

918

how to improve IR value in HT motors?

3 12513

why secondary terminal of current transformer should not be open circuited?

4 7144

why characteristics of overcurrent relay is time-->psm instead of time-->current?

1036

how much mininmum length required to conduct a DC Hipot Test on 33kV AC Cable with 45kV DC? Is it 20meter or Less then 20?

1047

In star delta Schematic can we connect OLR in delta circuit

2 4437

Why NGR is required for 11Kv geneartor in power plant

2 13878

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ABB Electrical Engineering Interview Questions





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