News
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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 -
The CNC Vertical Lathe For Housing (Max. D. 2.5m) of Sunvim Motor Has Been Completed!
The workpiece height is 2500mm, and the weight of the workpiece is 16 tons; the diameter of the worktable is 2250mm, and the two-speed stepless speed regulation of the vertical axis is provided, driven by an AC servo main motor; the worktable adopts static pressure guide rails and a short spindle...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 -
The difference between IC611 and IC616 in the cooling methods of high-voltage motors
The letter code IC is the abbreviation of the English term “International Cooling”. The motor cooling method code is mainly composed of the cooling method symbol (IC), the circuit arrangement code of the cooling medium, the code of the cooling medium, and the code of the driving metho...Read more -
Three Core Keys to Understand for Motor Constant Torque Operation Control
Key point one: Adhere to the principle of constant U/f ratio. Below the base speed, the magnetic flux in the air gap of the motor is directly proportional to the stator voltage and frequency. The stability of the voltage-frequency ratio (U/f) directly determines whether the magnetic flux is const...Read more -
Why are star connections mostly used for the stators of high-voltage motors?
For low-voltage motors, they are segmented based on power. For instance, in the basic series motors, a 3kW boundary is set; those not exceeding 3kW are connected in star, while the rest are connected in delta. For variable-frequency motors, the boundary is set at 45kW; those not exceeding 45kW ar...Read more -
Motor Performance and the Selection of Silicon Steel Grades
The main raw material for motor cores is silicon steel sheets. Currently, the most commonly used ones are 470, 600 and 800 in cold-rolled sheets, among which 470 and 600 sheets are more frequently applied in high-efficiency motors. 1.Low loss. Core loss at a certain frequency and magnetic inducti...Read more -
SUNVIM Y-H Marine Motor
On the vast and boundless ocean, deck equipment acts as the capable assistants of ships, from cargo handling to safety measures, silently safeguarding the safety and smoothness of every voyage. Behind this, there is an indispensable "heart" - marine motors, whose sturdin...Read more -
The impact of thermal corrosion on the performance of high-voltage motors
The influence of thermal corrosion on the performance of high-voltage motors. Temperature rise refers to the temperature of each component in electronic and electrical equipment that is higher than the ambient temperature. After a conductor carries current, it generates a thermal effect of curren...Read more -
In which working conditions are variable-frequency motors more suitable?
First, there are situations with significant load fluctuations and the need for precise speed control. In such scenarios, traditional fixed-speed motors can only operate at full load or be shut down, which often leads to energy waste or failure to meet demands. For instance, in industrial product...Read more