Answer / riemann

OIL SEAL,O-RING ARE SAFETY SEALS,
WHICH ARE USED TO MAINTAIN THE PARTICULAR PRESSURE RATING
AND AVOID LEAKAGES.

why core is useful for the transformer and in its operation

1 Answers  

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Why is it preferred to use a wattmeter(s) to measure power in three phase systems rather than using a combination of other instruments e.g. voltmeters, ammeters etc?

2 Answers  

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In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

0 Answers  

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Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.

0 Answers   Gasco,

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Why we say three phase voltage 440v.

2 Answers   VDP,

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how to calculate generator capacity?(kva)

2 Answers   SMEC,

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in conventional fan regulators how the current varies with speed?

0 Answers  

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can anyone help me regarding bout Electrical designs and calculations .. which text book should i follow as i am a trainee engineer.Description of my work which is Electrical designs like cable sizing, lighting, lightning, Gensets sizing, motor sizing, transformer sizing, generator sizing, circuit breakers, PDB MCC PCC SLDB MLDB panels, Single line diagrams mainly, substation desings, cable routing and layouts, reactive power compensations, power factor improvement, voltage drop calculations, power generations, power transmission, power distributions all calculations.Please help me

3 Answers  

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What are the various reasons for an inductin motor to get heated?

1 Answers   Monnet,

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what are the types of sus station ?

13 Answers   NTPC,

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What are reasond for high wattage in single phase induction motors

0 Answers  

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What is the criteria in selecting Air circuit breaker(ACB) & Moulded case circuit breaker(MCCB) for a particular range?

3 Answers   DLF,

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