Answer / mostafaghodrat

Means of protection from overcurrents
setting current & setting time
idmt
Means of protection from phase-to-ground connection
setting current
&
And in the least possible time trip

Explain principle of Soft-starter & how its working???

12 Answers   MAHINDRA,

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What are the classification of Servo Motor?

4 Answers   BARC,

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What are factors to be considered while we selecting the Core Balance Current Transformer for Earth fault protection

0 Answers  

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where this neutral connection goes after returning from the load(home ,factory,industries).Is it grounded at the transformer side or atthe generator side .If it is grounded then we also ground the earth connection.is there any problem with this.

1 Answers   IOCL,

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The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.

0 Answers  

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why swinburnes test cannot be performed on series machines?explain

0 Answers  

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Why efficiency in thermal power plant is low?

0 Answers  

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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..............

0 Answers  

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what is ring main unit(Rmu)? what is its function

1 Answers  

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2. The heaviest and lightest strings on a certain violin have linear densities of 3.0 and 0.29 g/m. What is the ratio of the diameter of the heaviest string to that of the lightest string, assuming that the strings are of the same material?

1 Answers  

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Is a DC Transformer Possible? if Yes, Then Why, if not Then Why?

9 Answers  

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Can somebody tell me the type and amp of transformer used to implement 600VA UPS? Thanks in advance.

1 Answers  

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