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explain autotransformer?
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Sep 3, 2017
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anonymous
autotransformer
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Oct 16, 2017
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anonymous
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Sep 14, 2018
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State with neat sketch the construction of three phase autotransformer.
State with neat sketch the construction of three phase autotransformer.
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Operation: Working principle is based on self-induction. When three-phase ac supply is given to star connected three windings, flux is produced and gets linked with each phase winding. The emf ... . Depending upon the position of variable terminal, we get variable AC voltage at the output.
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Sep 2, 2018
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Draw the power and control circuit for motors using autotransformer type starter.
Draw the power and control circuit for motors using autotransformer type starter.
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Draw the power and control circuit for motors using autotransformer type starter.
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Apr 28, 2018
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3kW load is supplied by an autotransformer with 0.7 transformation ratio. Conductively transferred power
3kW load is supplied by an autotransformer with 0.7 transformation ratio. Conductively transferred power from primary to secondary is (A) 2.1 kW (B) 0.9 kW (C) 4.29 kW (D) 3 kW
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3kW load is supplied by an autotransformer with 0.7 transformation ratio. Conductively transferred power from primary to secondary is 2.1 kW
auto-transformer
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Jan 8
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State any two applications of single phase autotransformer.
State any two applications of single phase autotransformer.
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Applications of single phase auto transformers: 1) Give small boost to distribution cable to correct the voltage drop. 2) As auto transformer starter for induction motors. 3) As furnace supply ... . 5) In control equipment for single phase locomotives. 6) As dimmer in lighting circuits.
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