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how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours
what is different between relay and plc?
dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.
Define thermal resistance in the context of power amplifier.
If VFD is On but no starting commond on it. so how many outpout voltages of VFD
What is rotating magnetic field?Discuss elaborately.
why does connected a indutor with mnsformeretering core of current transformer ?
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?
A well system is when , no. of bus bar is less or more. Tell me the concept of it.
how many types control panel of a 132/33 kv substation
sir i had plane to do some project with the base of hopkinson test in AC supply its possible
what are the difference between AC lamp and DC lamp
Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.
What is the difference between the transmission line and distribution line?
Can RCD's used to protect the VVVF drive if not why.
