The operating voltage of a meggar is about
A. 6 V
B. 12 V
C. 40 V
D. 100 V
Answer: Option D
A. 6 V
B. 12 V
C. 40 V
D. 100 V
Answer: Option D
D.C. machines designed with a large value of air gap length have
A. worst, ventilation
B. poor ventilation
C. better ventilation
D. none of the above
_________ electromagnets generally function as holding magnets.
A. Tractive
B. Portative
C. Either of the above
D. None of the above
By which of the following methods motor rating for variable load drives can be determined ?
A. Method of average losses
B. Equivalent current method
C. Equivalent torque method
D. Equivalent power method
E. All of the above
In direct cooled system using hydrogen both stator and rotor conductors are made
A. solid
B. hollow
C. perforated
D. any ofthe above
The operating voltage of a megger is typically around 50 to 100 volts.
A megger is a portable instrument that measures the insulation resistance of electrical systems or machinery. It works by applying a high voltage to a circuit and measuring the current that flows through the insulation. This helps identify potential problems with the insulation, such as damage or degradation