Before we might start discussing about brushless exciter in details it would be better if we start with a definition to get an idea about what it is actually. Mounted on the shaft of a small DC generator is a design of AC generator that when rotated gives the DC to excite a magnetic field. The brushless exciter is a great tool that would help you to convert AC current to DC for devices that do not have an in-built converter.
To define wound rotor motor it would be right to describe it as a kind of induction motor in which windings of the rotor are through slip rings connected to the external resistance. Regulating the resistance enables control the motor’s torque or speed quality. Wound rotor motors may be initiated with little inflow current, by putting in high resistance inside the circuit of the rotor. The resistance level can be decreased when the motor has accelerated.
When you will compare a wound rotor motors to a squirrel cage rotor, you will find greater number of winding turns in the slip ring rotor motor. While starting up a conventional rotor would have 3 connected poles to slip ring. Every pole is tensed in sequence with a different power resistor.
To define wound rotor motor it would be right to describe it as a kind of induction motor in which windings of the rotor are through slip rings connected to the external resistance. Regulating the resistance enables control the motor’s torque or speed quality. Wound rotor motors may be initiated with little inflow current, by putting in high resistance inside the circuit of the rotor. The resistance level can be decreased when the motor has accelerated.
When you will compare a wound rotor motors to a squirrel cage rotor, you will find greater number of winding turns in the slip ring rotor motor. While starting up a conventional rotor would have 3 connected poles to slip ring. Every pole is tensed in sequence with a different power resistor.
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