Answer / mahavir jagdev

There are three modes of transmitting energy

CONVECTION ..... BY THE MEDIUM LIKE AIR BETWEEN THE TWO
CONDUCTION ..... PHYSICAL TRANSMISSION
INDUCTION .... ELECTRO-MAGNETIC TRANMISSION

we have one pumping station and 4.6 MW 7 no.s synchronous motors.so there is no required HT capacitor to improve power factor.But we have two no.s of 25 Mva power transformer connect to distribute the power for motors connect with 220 kv line.So i have required the HT capacitor to improve power factor at HT side i mean power transformer bus side.So please suggest how much HT capacitor banks required for same.

1 Answers  

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What is the safety factor is to be consider while selecting the switchgear and protection for electrical system

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Why current leads the voltage in case of capacitor load? Why voltage leads the current in case of inductive load? Why both are with in phase in case of restive load?

3 Answers   TATA,

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how do the stepper motor works.

1 Answers   Vardhman,

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why various test are performed on electrical panels & power cables before commissioning on site & what are these test???

0 Answers   Lavasa,

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What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?

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If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.

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From what on-site components does the HT panel monitoring the bus-bars in a 11kV system take inputs?

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what is the difference between neutral and earth????

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(1)For 3 No 1500 KVA transformer require on one single bus bar or need to be section through bus coupler means upto 3MVA.(2) 22KV Net work system as ring, How maney I/C required or 0ne I/C and one O/G.(3) What should be rating of VCB for 22 KV line.(4)Electrical/mechanical inter lock, why we need.

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how the capacitor work on dc?

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Explain how you intend to work under pressure to meet up with deadline target?

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