What is the purpose of SOTF being used inspite of distance
Protection given?
Answer Posted / ofa khoirun niam
When an impedance protection scheme uses line-side voltage transformers, SOTF current fault detectors may operate significantly faster than impedance units when a breaker is closed into a fault anywhere on the line. The dynamic characteristics of typical impedance units are such that their speed of operation is impaired if polarizing voltages are not available prior to the fault.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
HI....HOW CAN BE MESARED THE VALVE OF NEUTRAL GROUND RESISTOR WHIC IS LOCATED AT SWICHGEAR ON GENERATOR SIDE....
how can calculate resistance box for 15 kw, 6 pole, RV-230, RA-42 motor
what is the disadvantages of common earthing for AC and DC equipment? (i am talking about inverter control room and inverter duty transformer earthing is common...?)
Dear all, how we select the cable size according to current with or without including different correction factor , is there any direct method for sizing of cable...
please explain to me how to calculate current,voltage,resistance with formula??
What is resistance of 50meters, 16sq.mm, single core copper cable?
i have interview in Pepsi company what type of question will ask please send the question and answeer
hi frnds...pls send me aptransco previous papers .....pls..pls,,,(madhar.rocking@gmail.com)and suggest me some websites
what percent do you derate your copper wire when you change from copper buss to copper wire
How it can worked plc based electrical system And which type of software using.
i need the details about bhel exam.how to apply for that.please send to my email-id.thenmozhi2k7@gmail.com
Differnce between negative Pahse SequenceFunction and unbalance Function?
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
WHAT IS MEANT BY DERATING OF THYRISTOR?
What is the name of the winding to which supply is given?