Product News
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Some practical techniques in motor winding repair
A 6 kV, 1000 kW high-voltage motor experienced a rotor winding to ground fault. Due to urgent production demands, there was little time to spare. After professional personnel identified the faulty coil, it was directly bypassed and removed. The motor continued operating for six months before ...Read more -
Inspection, testing and testing of motor products – Factory test
For rigid parts such as the base and end cover, as long as their shape and position tolerances and dimensions meet the requirements, problems are unlikely to occur after the entire machine is assembled. However, for other components, some quality issues may occur to varying degrees, such as damag...Read more -
Why do variable frequency motors require an independent fan?
In industrial frequency conversion speed control systems, installing an independent cooling fan for the frequency-controlled motor is a key measure to ensure stable equipment operation and extend the motor’s service life. The core objective is to address the industry-wide challenge of insuf...Read more -
Different temperature measuring devices operate on different principles for protecting motors.
The motor temperature monitoring device is a crucial overheat protection system for motors, primarily providing protection by directly measuring the motor’s body temperature. It compensates for the limitations of traditional current-based protection, which cannot detect hidden overheating i...Read more -
Vertical motor
A vertical motor is one whose axis of output shaft is perpendicular to the chassis or the transmission mechanism. Its prominent feature is that the mounting holes are centered on the output shaft and are evenly distributed around it. The vertical motor is vertically arranged on the driven mach...Read more -
Design and Operation | Prevention and Control of Shaft Current in Motor Bearings
For motor shaft current electro-erosion faults, in addition to relying on specialized mitigation equipment such as grounding rings, insulated bearings, and filtering devices, it is even more critical to establish a long-term prevention and control system from two dimensions: initial structural d...Read more -
The insulated bearing can effectively prevent the current from flowing along the motor shaft.
Insulated bearings include all types of rolling bearings that can prevent current from passing through the path “outer ring – rolling element – inner ring”. This includes hybrid ceramic bearings and electrically insulated bearings. Hybrid ceramic bearings have the outer an...Read more -
How to select and apply the seven major types of motors? Servo motors, stepper motors, three-phase asynchronous motors, speed-regulating motors, direct drive motors, linear motors, and voice coil m...
Single-phase asynchronous motor Principle: It uses single-phase alternating current. A starting device (such as a capacitor or phase-splitting) is required to generate an initial rotating magnetic field. It has a simple structure, low cost, no positioning accuracy, and can rotate in both directio...Read more -
How to prevent the problem of motor shaft breakage?
From the analysis of the structural characteristics of the shaft, efforts should be made to avoid sudden changes in diameter and slender shafts of large-diameter rotors during the design stage. During the manufacturing process, necessary measures should be taken to eliminate stress. (1) Control o...Read more -
What is the difference between motor winding varnishing and not varnishing?
After the winding is impregnated with insulating varnish, the varnish will seep into the gaps of the coil and solidify, forming a complete and sealed insulating layer, which significantly improves the insulation performance of the winding. It can effectively resist the erosion of moisture, salt s...Read more -
Why are high-power motors made into high-voltage motors?
For low-voltage high-power motors, to achieve a large power output, it can only be accomplished through a large current. A large current requires conductors with a sufficient cross-sectional area. Whether it is the electromagnetic wire itself or the motor lead wire, they must have a sufficient cr...Read more -
The Importance of Motor Maintenance and Care – Maintenance of the Bearing System
For electric motor products, the bearing system and the collector ring system of wound rotor motors require regular maintenance and servicing because of material wear and consumption.Two very common typical cases are given as examples: Some manufacturers do not take anti-loosening measures for th...Read more