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Engineering Interview Questions
Questions Answers Views Company eMail

21. What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing? 22. What are the protections to be used for Generator? 23. Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0 24. What happens when the polarity changes in CT? Explain briefly? 25. Explain the Term in CT Name Plate – Class: 5P10

3 9483

How to calculate cable size in sq units based on motor rating is KW

2 6757

what is the full form of XLPE adn there use.

Voltas,

4 30892

What is Difference between the communication and transmission?

1 3688

What is Soil & Whats the type of soil are there? What is Ultimate & safe stress?

L&T,

1 6881

If i have 4 Allen Bradely make RS logix 5000 PLC and for viewing that we are using 4 RS view SCADA for 4 different packages. Now, I will want to view two packages on only one SCADA. Then how i will do it?

Essar, Reliance,

2385

what is the difference between power transformer & distribution transformer and what are their ratings respectively?

4 8233

what happen if transformer neutral not earth

2 7451

sigal phase supply is 230 v ac two phase supply is 415 v ac then why three phase supply having supply is 415 v ac why not 690v ac

2 5832

which processor is used in dcs.

ABB, Wave Distillery,

2253

1. What is differential relay? How it operates?

3 6038

How to calculate the Short Circuit Impedance in Transformer?

3 7884

What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

2038

While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply?

2 6401

What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

2006


Un-Answered Questions { Engineering }

I am using submission of two ct in one and half scheme for 67/67N protection. Both CTs star point is grounded separately near ct box.Will two point ground give wrong tripping to 67/67N during fault or no matter.

2113


What are electric motors?

1158


I am using 971 Enraf radar level transmitter for LPG tanks ,the tank side indicator gives the error code 999999999FL can any body give me any diagnostic for this issue?

2208


why does connected a indutor with mnsformeretering core of current transformer ?

2138


Explain the Proportionates of Ordinary concrete,Standard concrete,High Stength Concrete of Grades "M10,M15,M20" , "M25,M30,M35,M40,M45,M50,M55" , "M60,M65,M70,M75,M80" Respectively.

2150


what is the use of expulsition protective gap in 11Kv line.

2132


Ceiling Fan and Storage type water heater. Discuss

1966


8000 Liter Water in 80 degree Celsius will generated how many STEAM ?

1599


What is the gross weight to copper ratio in slip ring induction motor of 4000 HP,6.6 kv, 372amp, 992 rpm GE motor.

2360


How to find out slope footing concrete

2947


In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

1866


Why collector is always reverse-biased w.r.t base?

1174


How test for Ddo vector group test condition?

2468


Dear Sir/Madam, I have one questions we have three steam turbines and one Gas turbine and our industry linked with the public network, we have protection system one of the protection is reverse power we can export just four MW only i would like to ask about how to calculate the reverse power. Thank you in advance best regards

2096


Who is an adoptive entrepreneur?

5