How to take the Vector Group Test in Transformer? What is
the purpose
of doing Vector Group Test?
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if we supply DC power to AC transformer then what its result?
i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.
what types battery chargers are there?wanted with details.
what is the basic need of domestic loads 1- voltage 2- current
State nyquist stability criterion.
Why dc voltage used to excite alternator field in stead of ac?
(1)For 3 No 1500 KVA transformer require on one single bus bar or need to be section through bus coupler means upto 3MVA.(2) 22KV Net work system as ring, How maney I/C required or 0ne I/C and one O/G.(3) What should be rating of VCB for 22 KV line.(4)Electrical/mechanical inter lock, why we need.
How many types of timer ?which timer are used star delta feeder
i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.
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What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?
how much excitation voltage required to generate 1mw power?
how fault in an electric system is detected & hw protection of equipments is done ?