compensate reactive power
compensate reactive power
(OP)
we have 3 generators that are paralleled. Can we use capacitors to compensate the reactive power of the system? we want to reduce the current through the generators.
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compensate reactive power
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RE: compensate reactive power
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Sometimes I only open my mouth to swap feet...
RE: compensate reactive power
RE: compensate reactive power
I just recalled about an Induction Generator Project on a hydroelectric plant. Very small plant though aroubd 600 KW but it is supposed to have a cap. bank at the gen terminals for reactive power by default. So, how would you rule out the possibility of not having a problem.
Thanks
RE: compensate reactive power
RE: compensate reactive power
RE: compensate reactive power
i) it allows the prime mover to deliver energy to the grid;
ii) it allows control of the reactive power of the machine.
The problem with operating with a weak field - i.e. absorbing reactive power - is that the ability of the field to hold the prime mover in synch with the grid is reduced. This is the reason that the capability curve is truncated at the under-excited edge at the stability limit of the machine. If you reduce the field far enough the generator will break out of synch with the grid in a very serious condition known as 'pole slipping'. A pole slip causes huge dynamic forces on the machine and must be detected and the unit tripped very rapidly to avoid serious damage. Normally the AVR is designed to prevent operation outside of the stability limit, and generate an alarm when operting near it.
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Sometimes I only open my mouth to swap feet...