Answer / bejoy

its a panel used to retrive digital and analog values from
different relays . so we can view the values and change the
settings too. Commands can also be send from a remote
station inorder to activate the CB. If a SCADA software is
installed in the PC ,then continus viewin of data is
possible as it keeps pollin data after every second

when meggering a 3ph,480v oil reservoir heater on a regen gas compressor, why do I get a reading to ground when meggering phase to ground? shouldn't it read opened or is there something that makes it read closed? on the same heater, when ohming, it reads open. thanx

1 Answers  

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We are designer please help me calculate the size of 11kv cables from step up transformer to M.V panel, total load is 5 mega watt distance 900 feet (used aluminum type cables) please provided formula for calculate the cable with example.

0 Answers   SK Engineering,

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What is the difference between an insulator and a dielectric?

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if the syncronous machine run at leading pf and as its field curret increased its armature current decreased is machine operate as generator or motor?

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What is oil temprature with A/T contacts in Transformer ?

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HOW TO CALCULATE LV CABLE SIZING?

2 Answers   L&T, MRF,

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what are the possible reaons & remedies if resistance of NGR getting heat up

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in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly

0 Answers   Shaifali Rolls,

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What are the applications of autotransformers?

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what is the pi test for current transformer?

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what voltage to be select in megger for insulation resistance testing to L.V , H.T cables,motors and transfomer?and ohms valve should be giga ohms only or what?

1 Answers   Deevya Shakti Paper Mills,

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If we give the 440 V supply at secondary winding of the transformer then what will affect at primary winding???????

6 Answers  

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