Explain what is electric traction? Explain few advantages of electric traction system?
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How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me
how many frequent start/stop operation possible in case of HT MOTORS.
what is the change over switch ,switch disconnector ,bypass switch and switch disconnector fuse unit?
what is negative and zero impedance in 3 phase induction motor ??
is it possible to export & import power in a same transformer.how
any one please tell taht what type questions will be asked in BHEL interview, i am having interview on 24th Dec, please send this to mail email@example.com
how to calculate cable size
during installation time of transformer and alternator which points we have to observed?
what is auto re-closer?
what is the minimum dielectric stregth of transformer oil.
I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?
Explain bypass capacitor?