Answer Posted / bhavini
bucholz relay is the protection relay for internal fault
occures in oil filled transformers
any gaseous generated due to winding temp. should be high
oil form in gaseous.
there have two floats first 4 alarma nd 2nd for trip
command
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com
State the types of distortions in amplifier?
what is the difference between ups & inverter
sir pls send the je exam - 2008 and other model question papers..
pls someone send me sample question papers along with the key.thanks in advance
What is the Difference between Ac Drives and Dc Drives? According to application, speed, Torque, cost, Reliability, Construction, Motor etc... Thankyou !!!
HOW TO CALCULATE CAPACITOR BANK OR HARMONIC FILTER CALCULATION
What is the principle of HIGH SPEED DIRECT DRIVE MOTOR ?
What type of fittings and electrical accessories can be install in radiation area ?
How much kv gas generator is needed to run 2 hp and 1 hp airconditioners, plus a refrigerator and 4 Tvs
I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.
Define sensitivity?
How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?
Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV
before synchronizing an alternator,power factor is leading ,why?