sir
what is the minimum IR value of 11 KV alternator?

Answer Posted / raghavendran.r

The thumb rule for IR value is that per kV of system it
must have atleast 1MOhm of insulation Resistance.

But We have a formula Which says

IR = Sys.kV + 1MOhm.

if System voltage is .415kV then Minimum Insulation
required is .415 + 1MOhm = 1.415MOhm.

Is This Answer Correct ?    8 Yes 7 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

1619


What is difference between start imitation and start interlock for 3 phase motor protection ?

1798


What is the meaning of loop in transformer

1201


at work i have a genertor/alternater what is the easyest way to work out if it is dc or ac?

1389


why the active power flow of some line is increased when the active power of out is cut ?

1648






what is the efficiency of thyristor

1130


I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??

1405


How to convert a two phase power into a three phase power in induction machine?

1358


how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

1683


What is given by the definition in BIL IMP/PF = 950/395 kV. This was found in a name plate of a power transformer.

1845


give single line diagram of D.G distribution form alternator to main L.T panel?

7039


plz send me Bhel, Mahagenco, sbi previous exam paper for electrical engineer on my email-id kambali_smita@yahoo.co.in

1936


WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .

1712


What is earth system using on the floater TN-S or TT. Iam not sure and what ICCP

1252


Define settling time.

722