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AC 3 PHASE INDUCTION MOTOR
Set 8
Set 8
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Q13471
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Which principle the current sensing single phasing preventor works?
A
Equal currents with balanced loads
B
Different currents with balanced loads
C
Equal currents with unbalanced loads
D
Different currents with unbalanced loads
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What is called, if the order of 3 phase supply voltages reach the maximum value?
A
Phase relation
B
Phase sequence
C
Single phasing
D
Phase distortion
Q13473
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What is the purpose of single phasing preventor?
A
Protects the motor by stopping automatically under balanced load
B
Provides three phase supply in sequence order
C
Prevents the motor from short circuit fault
D
Prevent the motor from over load
Q13474
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Which type of single phase preventer is used for the motor with constant load?
A
Mechanical single phasing preventor with bimetal relay
B
Mechanical single phasing preventer with coils
C
Voltage sewing single phasing preventer
D
Current sewing single phasing preventer
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