Application of DC Motor

DC motors have good starting and braking functions, and are widely used in electric drive automatic control systems, such as rolling mills and their auxiliary machinery, mine hoists and other fields. Although the DC motor has a more complex structure and inconvenient maintenance than the three-phase AC asynchronous motor, due to its better speed regulation performance and larger starting torque, the production machinery that requires higher speed regulation may require a larger starting torque. The production machinery is often driven by a DC motor. A motor whose speed is proportional to voltage is a DC motor, and a motor whose speed and frequency are proportional is called an AC motor. DC motors are voltage-regulated and speed-regulated, while AC motors are variable-frequency speed-regulated. This is the watershed between DC motors and AC motors. DC motors have fast response, large starting torque, and can provide rated torque from zero speed to rated speed, but the advantages of DC motors are also their disadvantages, because DC motors need to generate constant torque under rated load. performance, the armature magnetic field and the rotor magnetic field must be maintained at 90 degrees.

The follow is the list

• Three-phase high voltage asynchronous motor

• Advantages of DC motors for rolling mills

• Application range of DC motors for rolling mills
  

Three-phase high voltage asynchronous motor

Three-phase high-voltage asynchronous motors are professional, high-performance drives for all industrial sectors. Different types of protection and cooling make them suitable for universal implementation. DC motors for rolling mills offer the right solution for every application, with machines that are competitive and meet market requirements. They are durable and are characterized by easy maintenance, modular design, excellent energy parameters and low noise emissions. All DC motors for rolling mills are custom-configured to meet specific application standards. A wide range of manufacturing technologies and the continuous further development of cooperation with research institutes and universities also contribute to improving the quality of the products.

Advantages of DC motors for rolling mills

Since DC motors for rolling mills are suitable for the operation of converters, they are able to provide customers with specific solutions that provide maximum productivity, highest efficiency and highest level of reliability. Our DC motors for rolling mills have proven themselves in a wide variety of applications for decades. As drives for pumps, compressors, rotary kilns and mills, as well as in the mining, chemical and petrochemical industries, steel and rolling mills, as well as in environmental engineering and power generation. Another advantage. The operation of the converter brings significant cost savings over its entire service life.

Application range of DC motors for rolling mills

DC motors for rolling mills provide high performance low speed motors for the metal industry. After the long dominance of DC motors, dynamic, high-quality three-phase motors are used today: synchronous motors for higher torques as solid-pole versions, and asynchronous squirrel-cage motors for lower torques. The mechanical structure is designed for the high loads in the operation of the rolling mill; likewise, the electromagnetic selection meets the requirements for overload, adjustment range and control dynamics. Cooling relies primarily on air-water heat exchangers.

DC motors for rolling mills provide motors for hot and cold rolling mills, for single and double reversing stands, for single and double or quadruple edgers, finishing mills and tandem mills for Coiling, shearing and auxiliary drives.

Hangzhou New Hengli Electric Machine MFG. Co., Ltd. (Originally Hangzhou Hengli Electric Machine MFG. Co., Ltd.) was founded in 1954. Over 68 years of manufacturing experience in kinds of DC & AC Motors built up the customer-centered product development methodology and do under the special requirements of customers.