20151208 One question per day
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20151208 Daily Question: The rewards are as follows: 1-3 points for participation, 5 points for a correct answer, and 8-10 points for a correct answer accompanied by an analysis. Blocking current refers to: when the motor is operating at its rated frequency and voltage and the rotor is blocked at all angular positions, ( ). A. The effective value of the current incoming from the power supply line. B. The maximum value of the current incoming from the power supply line. C. The steady-state current value incoming from the power supply line. D. The maximum effective value of the steady-state current incoming from the power supply line. The answer is D
D. RMS value of the maximum steady-state current supplied from the power line
Stall current refers to: the current in an electric motor at rated frequency and rated voltage when the rotor is blocked at all rotational positions, (D). A. The RMS value of the current entering from the power supply line B. The maximum current value entering from the power supply line C. The steady-state current value entering from the power supply line D. The maximum RMS value of the steady-state current entering from the power supply line
Stall current refers to: the current in an electric motor at rated frequency and rated voltage, with the rotor blocked at all rotational positions, (C).
Stall current refers to: the current in an electric motor at rated frequency and rated voltage, with the rotor blocked at all rotational positions, (C). A. The RMS value of the current supplied from the power supply line B. The maximum current value supplied from the power supply line C. The steady-state current value supplied from the power supply line D. The maximum RMS value of the steady-state current supplied from the power supply line
Stall current refers to: when the motor is operating at rated frequency and rated voltage with the rotor blocked at all rotational positions, (a). A. The RMS value of the current supplied from the power supply line B. The maximum current value supplied from the power supply line C. The steady-state current value supplied from the power supply line D. The maximum RMS value of the steady-state current supplied from the power supply line
D、---------------------------------
Stall current refers to: the maximum RMS value of the steady-state current supplied from the power supply when the motor is operating at rated frequency and rated voltage, with the rotor blocked at all angular positions
Stall current refers to: the current in an electric motor at rated frequency and rated voltage when the rotor is blocked at all rotational positions, (D). A. The RMS value of the current entering from the power supply line B. The maximum current value entering from the power supply line C. The steady-state current value entering from the power supply line D. The maximum RMS value of the steady-state current entering from the power supply line