YRQT liquid resistance speed regulating device

The series of liquid resistance speed regulators is a high-performance device designed for belt regulation of fans, small pumps and other power equipment equipped with winding asynchronous motors. This equipment overcomes the shortcomings of other types of speed regulating devices such as high price, poor reliability, and difficulty in maintenance, and has a high performance-price ratio. It can be widely used in speed regulation of fans and pumps in steel, petrochemical, metallurgy, chemical industry, electric power, building materials, water supply, grain processing, pharmaceuticals, urban water supply, agricultural irrigation and other industries.
Basic Principle
The series of liquid resistance speed regulators are mainly composed of two parts: a liquid resistance cabinet and a cooling cabinet. It is designed and developed based on the basic principle that the maximum torque of the motor has nothing to do with the rotor resistance, and the slip rate changes in proportion to the rotor resistance. The key technology is to insert a liquid resistor with large heat capacity into the motor rotor circuit, and change the motor slip rate by changing its resistance value to achieve stepless speed regulation.
Performance characteristics
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Suitable for large and medium-sized windings Type asynchronous motor stepless speed regulation, the speed regulation ratio can reach
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According to the change of motor load, the power saving rate can reach
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Has the function of a liquid resistance starter, which can start the motor directly and conveniently
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Has Complete fault detection and interlocking protection functions
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High performance-price ratio (compared to variable frequency speed regulation and thyristor cascade speed regulation)
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Simple installation and operation, reliable operation and convenient maintenance
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The circuit design is novel and relatively Other similar products have high reliability.