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can i have the methods of speed controls for 3 phase AC
MOTORS.
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Answer Posted / manikanta kumar gopi
I think as per the answer of Mr.G.sreenivasalareddy
Frequency control method and Rheostatic method are same.am
i correct?
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L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.
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