Answer / mojinkoshy

Multimeter is an electronic device which is used to measure
various electrical parameters like voltage, current, power,
electric continuity etc.
Transmitter is also an electronic device
which is used for transmitting radio signals for communication/
information purpose.

what happens when we give ac supply to the dc motor?and why?

4 Answers  

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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Why to keep capacitor bank off while generator running.

0 Answers   GIT,

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AC is the magnitude of sinosudial-wave but we use cose value to determine power factor instead of sine value.

2 Answers  

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What are the different types of LT Cables?

0 Answers   Nabard,

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Why Lightning arrester used? Can we use piece of iron as a core material of transformer, if No, why? In CRGOSS material what is meaning of cold rolled grain oriented? Why Impegrenation of Transformer is done? Properties of Insulator? what is phase angle? Testing of transformers (Routine & Monthly)?

6 Answers   NTPC,

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I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.

0 Answers   Bhel,

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which meter used to measure a flus

2 Answers   RRB,

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What is the practical way to calculate the cable size for known ampere load?

0 Answers  

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difference between turns ratio and transformation ratio?

2 Answers  

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hai iam arunkumar. i have applied for an section enginner in rrb. i want lat 5 years solved question papers. if u have please sedn it to arun30682@gmail.com

0 Answers   RRB,

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what meant by Locked Rotor Current ?

2 Answers  

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