Answer / william lobo

The height of the building is not a creiteria for
installing of lightning arrester. If this is the only
building in the area then we have to install the lightning
arrester. But generally it should be installed on the
highest building or tower in the immediate vicinity.

It consists of spikes which can be installed on the
perifery of the building at distances of about 15 to 20
feet.

testing of protective relays will be discussed later.

What determines the thermal loading on the motor?

0 Answers  

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Why is making current of CB always greater than CB breaking burrent?.

6 Answers   JP Group,

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How voltage regulation is calculated for over head transmission line? What do we mean by Conductor constant while calculating voltage regulation? how it is differ for for diffrent type of conductor say AAAC DOG & AAAC RACOON conductor?

3 Answers   ABB, AES,

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Dear all, I want to use Induction motor to open and close a 1 ton door. How much power do I need. Thanks

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in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.

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Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............

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What is VCB'S @ ACB'S.Plz explain Briefly

2 Answers  

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cable tray sizing & selection

1 Answers  

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what is MULTIPLYING FACTOR in substations??

2 Answers  

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why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.

0 Answers   Siemens,

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WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???

0 Answers   Lanco,

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What is Control & Relay Panel? And Remote Control Center?

0 Answers   L&T,

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