Answer / m.g. manjunath

Neutral earthing is used as the return path for static
equipments like transformers. While unearthed systems are
systems where you have higher insulation level

Answer / gunasekaran

if it is balance or receiving end we don't want earth it
because source end already earthed.if it is source end
neutral should be earthed why because earth fault current
getting closed bath we can using earth fault protection if
it is high voltage system with out neutral earthing
resonance will be occur so we have do to the earthing at one
end

why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?

0 Answers  

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in single phase circuit if i connect a heater between phase and neutral, then what will be the current path? phase to neutral or neutral to phase.

4 Answers  

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We have a 12MW power plant & we inject 5-6MW power to Orissa GRID. For this we have a 33KV/11KV switch yard having 12.5MVA power transformer. Some times we draw power during emergency. It is observed that during Export or Import for load less than 500Kw the power factor is decreasing to 0.3 . This is happening only during export or import. During island condition TG power factor OK.Our capacitor bank is provided with our Power plant auxilliary load. Please suggest how I can we improve our power factor during low load (GRID).

3 Answers  

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what is deferens between HT&LT DG

2 Answers  

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HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com

0 Answers  

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How many types of lightings are there

2 Answers   ABB, Met Trade,

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What are the internal and external faults?

0 Answers  

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what is the difference between MCB and MCCB?

4 Answers  

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What is diversity factor in electric installations?

0 Answers  

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Why NGR is provided in sub station?

4 Answers   MMS,

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hw to calculate flc of motor ? data are:3-phase,50Hz,30kw

6 Answers   BRG, Reliance,

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ro plant grundfos bm30type pump.we start the pump using siemens 3rw 4423-1bc44, 30kw soft starter. bur its failier frequently. so we planed to change the dol starter. sp please tell me any budy its possible or not翿შ†

1 Answers  

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