for 8 mva 33/11 kv transformer what will be the setting of
differential relay on which it trip & what is the HF
setting in this relay

Answer Posted / amir_7442

ok but i ask what is HF in this relay ?

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what ispositive, negative, zero sequence impedence?

1579


How much kv gas generator is needed to run 2 hp and 1 hp airconditioners, plus a refrigerator and 4 Tvs

4399


Comment on the working principle of operation of a single-phase transformer.

703


electrical knowelge

734


with out colour codeing on conductor how can be find what is r,what is b,what is y phases.....

1497






While testing LA mast,What are the parameter limits ?

1452


IN induction motor pf is increased using capacitors.what will be the effect on motor and system when very large capacitor is accidently installed and pf goes leading.

1625


Explain what is rated speed?

675


How much costly in percentage wise is sandwich busduct costly than air insulated busduct of any rating?

1353


how withstand of hi-pot test outputs of transformer wire 2.5mm

1505


Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.

1901


i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

1461


Which type of motor is used in trains, what is the rating of supply used explain working principal?

781


WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?

3812


In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?

1494