what are the protections in 132 kv class electrical
systems.....? hw u define that in elctrical terms..?
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.pls answr
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over current-a)instantaneous, idld,thermal earth fault,
under votage.
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in addition, differential relays for current and voltage
are necessities also to monitor considerable leakage of
current and difference in voltage (in case of two leg
switchgear for a make and break design) to a magnitude that
will activate tripping action or prevent closing of the bus
tie.
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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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