DC Motor Rating

Keywords: DC Motor, AC Motor, Stepper Motor, BLDC Motor, Servo Motor, AC Gear Motor

Rating of the electrical production of standard products in the specified operating conditions (ie, rated conditions) provided some of the money.
Rating is usually marked on the main motor nameplate. DC Motor's main ratings are:
(1) Power DC Motor PN refers to the mechanical power output shaft, in units of W or kW;
(2) Rated voltage UN means the state electrical outlet end of the rated voltage, the power supply input voltage, in units of V;
(3) Rated current state of IN means the rated motor current outlet side, that the power input of the total current, in units of A;
(4) Rated speed nN that DC Motor output shaft speed, in units of r / min.
In addition, DC Motor nameplate also marked motor model, insulation class, rated excitation voltage UfN, rated excitation current
IfN and other characteristics of the contents of the motor shows. The rated efficiency ηN, rated torque TN normally are not marked on the nameplate.
Clearly, DC Motor of PN = UNINηN. In actual operation, if the current is just equal rated current, the
Known as the rated full load running or run; If the current is less than rated current, it is called under load or light load; If the current is greater than rated
Flow is called overload or overload. Long-term overheating of the motor overload not only to reduce the motor life, or even damage the motor. Long-term
Light-load not only can not make full use of electrical equipment capacity and reduce the motor efficiency.