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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 5011

How do you know when the battery is fully charged?

6 11044

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

3222

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

2011

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

2028

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

2628

how to modify DOL control panel into Delta Y connection?

1571

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

2 5056

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

7 33317

xpression 'document.FrmQF.myemail' [

1683

Differentiate between power relay and reverse power relay?

2 8857

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 6385

What is the difference between earth and neutral

4 8046

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

3 5519

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

2 5385

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ABB Electrical Engineering Interview Questions


Un-Answered Questions

Write a function in R language to replace the missing value in a vector with the mean of that vector?

116


If the tractive effort is the highest for a given velocity, then the vehicle must be in a) Top gear b) Third gear c) Second gear d) First gear

1603


What is data partitioning?

839


Protactinium-233 can be bred from Thorium-232. Describe the process of breeding Protactinium-233 and its significance for nuclear fuel production.

286


Is microsoft access like excel?

485






How do I use xml namespaces with dom level 2?

538


What is ssrf attack?

498


Explain the following common css units of length: cm, em, in, mm, pc, pt, and px.

369


What are perl strings?

591


how to restart sql server in single user mode? How to start sql server in minimal configuration mode? : Sql server database administration

558


What is meant by a * search algorithm?

642


What is metaspace?

663


What is ngstyle and ngclass?

518


What is spaghetti programming?

771


What are the different types of expenditures used in accounting?

665