Answer Posted / arun
the sf6 gas is used during fult occur in a.c sub station
| Is This Answer Correct ? | 0 Yes | 4 No |
Post New Answer View All Answers
What is float cum boost charging system?
The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s
Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1. H1-H2 = H2-H3 H3-H1 2. H2-H3 = H3-H1 H1-H2 3. H3-H1 = H1-H2 H2-H3 For the LV side also: 4. X1-X0 = X2-X0 X3-X0 5. X2-X0 = X3-X0 X1-X0 6. X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0 H2-H0 H3-H0 X0-X1 X0-X2 X0-X3 128.0 119.9 7.2 29.2 13.3 15.8 70.7 128.4 59.2 23.4 22.0 3.6 7.2 120.1 128.1 13.4 29.3 15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?
do you have some of interview Questions in power and genrator section in general whith answers
what is level 2 automation?
What is mean by spike arrester(Voltage Operated)
i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400
What is the difference between a 3 winding and 2 winding Potential Transformer
oltc of a transformer, how it works? and what are the equipment consist of describe briefly?
What is self exciting?
WHAT IS DEAD END IN PROTECTION?
how many joints are allowed in underground HT cable of 1 KM
why we used ZNO in Lightning arrester.
what maximum range of star & delta in hp or kw ?
HI....HOW CAN BE MESARED THE VALVE OF NEUTRAL GROUND RESISTOR WHIC IS LOCATED AT SWICHGEAR ON GENERATOR SIDE....