Generator no-load
Then the load loop is disconnected, but the prime mover and exciter are both working, and the stator has output voltage, but there is no current in the stator, because there is no load to form a loop.
Motor no-load
Refers to the charged rotation, but the output shaft has no load, and the stator and rotor have current, but the current is very small and the slip rate is very small.
For electrical installation engineering, the no-load loop is in standby state, which is divided into hot standby and cold standby. No matter which part of the circuit is described, there is voltage on the power supply side, but no current flows as a hot standby.
If there is neither voltage nor current on the power supply side, it is cold standby. The most obvious feature is that there may be voltage in the circuit, but no current flows, and there is no conversion between electric energy and other energy.
Extended data:
product classification
1, classification of working power supply According to the different working power supply of motor, it can be divided into DC motor and AC motor. Among them, AC motors are divided into single-phase motors and three-phase motors.
2. Classification of motors according to structure and working principle Motors can be divided into DC motors, asynchronous motors and synchronous motors according to structure and working principle. Synchronous motors can also be divided into permanent magnet synchronous motors, reluctance synchronous motors and hysteresis synchronous motors. Asynchronous motors can be divided into induction motors and AC commutator motors. Induction motors are divided into three-phase asynchronous motors and so on.
Phase asynchronous motor and shielded pole asynchronous motor, etc. AC commutator motor is divided into single-phase series motor, AC -DC dual-purpose motor and repulsion motor.
3. Classification of motors according to starting and running modes Motors can be divided into capacitor-started single-phase asynchronous motors, capacitor-operated single-phase asynchronous motors, capacitor-started single-phase asynchronous motors and split-phase single-phase asynchronous motors according to starting and running modes.
4. Motors can be classified into drive motors and control motors according to their uses.
Driving motors are divided into electric tools (including drilling, grinding, polishing, slotting, cutting, reaming and other tools) and household appliances (including washing machines, electric fans, refrigerators, air conditioners, tape recorders, video recorders, DVD players, vacuum cleaners, cameras, hair dryers, electric razors and so on). ).
Motor and other general small mechanical equipment (including all kinds of small machine tools, small machinery, medical instruments, electronic instruments, etc.). ). Control motors are divided into stepper motors and servo motors.
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