Answer / samy

Rising main IS

IS 8623
IEC 439

where we sense the fault from the transmission lines?any operation example for distance relay?rear panel connection for this relay?

1 Answers  

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Refernce currents are to be generated using refernce cueernts how can this be done??

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why transmission line towers are longer than communication line towers?

3 Answers  

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how i calculate the syncrones generator NGR resistance .if we have a 6mw generator line voltage of generator 11kv also line current 393.3 ampere.

0 Answers  

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Recently we had experienced following problem All RCCB breakers (connected to the load as well as spares) connected to various UPS systems at various floors at a high rise building tripped during a power break down and upon starting up of generator.This Generator is recently inducted into the installation. Can any one explain the reason behind this tripping. Regards Viswanathan

1 Answers  

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Is it required to use 2 nos of body earthings to any machine though if we use TP with E supply is provided to Machine?

2 Answers   HAL,

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A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why

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How do we calculate the maximum amount of current in a 300 SQ.MM cable ?

1 Answers   Roto Power,

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What is the method to calculate the capacitor bank rating for say 50 KW load and how do we connect each capacitor to busbar??

4 Answers  

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Can I do body earthing of machine by using Cable armour or I have to run another GI wire for body earthing and how many wires I need to run. Is there any rule for this. eartnig

3 Answers   HAL,

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What is the unit of inertia constant of rotating machines? Which has more inertia constant between turboalternator and hydroaltermanor and why?

2 Answers  

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can we amplify dc signals.how can it be done

4 Answers  

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