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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between Current transformer & Capacitive voltage transformer

2 4746

How do you know when the battery is fully charged?

6 10465

What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

3070

What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer

1891

What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current

1903

what is the purpose of high speed earth switch in gas insulated substat

2525

how to modify DOL control panel into Delta Y connection?

1473

how many testing use in power transformer?tell equipment names?

2 4828

what is the meaning write of AC1,AC2,AC3 .....power contactor

7 32513

xpression 'document.FrmQF.myemail' [

1579

Differentiate between power relay and reverse power relay?

2 8534

what effect on electrical equipment if PF is gone over 0.996 in leading when provider say that its keep in minimum 0.996lagging

3 6082

What is the difference between earth and neutral

4 7745

for a machine R=130 KVA Y=132 KVA B=144 KVA Then what will be the total kva

3 5232

what is the rating of Insulation tester for measure 15 KW, 3 phase 415V 50 HZ induction motor?

2 5153

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ABB Electrical Engineering Interview Questions


Un-Answered Questions

Explain how is natural gas better than lpg?

619


How can I hide all stack whoops error information when the application is in production?

426


state the disadvantages of carbon filament???

2362


how much brick, cement, and sand required in 1mtr X 0.23mtr X 1mtr brickwork(1:4), 230mm thick wall and 10mm thick mortar , brick size 230mm X 70mm X 110mm

1532


Explain informatica architecture?

544






What is delay angle?

623


Which server is best for python?

426


What is the use of shutdown command?

137


Can excel convert to access?

429


How do you create a dataset in excel?

271


How to build diary farm?

2131


Clasify capital

1511


Differentiate between structure and class.

567


What are the subsets of sql?

541


What is the difference between a class and an object?

522