Construction method for reducing energy consumption of wound-rotor motor

Abstract

The invention discloses a construction method for reducing energy consumption of a wound-rotor motor. The method comprises the following steps: first of all, short-connecting a rotor of the wound rotor motor with three lead-out wires connected with a collector ring through a short circuit board; and then additionally installing a control system between a starting power source and a constructed wound rotor motor. The application rate of the motor is improved, production safety can be guaranteed, the electricity consumption cost is greatly decreased, safe and stable operation of a power plant is ensured, the cost is not high, and manufacturing and maintenance are convenient.

Description

technical field [0001] The invention relates to the technical field of metallurgical energy and electricity, in particular to a transformation method for reducing energy consumption of a wound motor. Background technique [0002] Due to historical reasons, metallurgical energy enterprises have used a large number of wound motors, but the disadvantages of wound motors, such as the inability to adjust the speed, large starting current, and high energy consumption, have greatly increased the cost of metallurgical enterprises and threatened the safety of the terminal power grid. . [0003] Defects of wound wire motors: 1. The wound wire motor is a fixed-speed motor and cannot be adjusted. Regardless of the load, the output power of the drive source does not change, which wastes a lot of power and leads to high power consumption; 2. Winding The starting and running torque of the type motor is large, and it must be started manually with an external water resistance, which often a...

AI Technical Summary

Problems solved by technology

[0002] Due to historical reasons, metallurgical energy enterprises have used a large number of wound motors, but the disadvantages of wound motors, such as the inability to adjust the speed, large starting current, and high energy consumption, have greatly increased the cost of metallurgical enterprises and threatened the safety of the terminal power grid.

[0003] Defects of wound wire motors: 1. The wound wire motor is a fixed-speed motor and cannot be adjusted. Regardless of the load, the output power of the drive source does not change, which wastes a lot of power and leads to high power consumption; 2. Winding The starting and running torque of the type motor is large, and it must be started manually with an external water resistance, which often affects production due to unsuccessful start; 3. The starting current of the winding type motor is 7 times the rated current, which has a large impact on the power grid. even cause an accident

[0004] Winding motors cannot be adjusted in speed, have large starting current and high energy consumption, which greatly increases the cost of metallurgical enterprises and threatens the safety of the terminal power grid.

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