News
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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 sturdiness and ...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 -
Which countries have mandatory requirements for the energy efficiency of motor products?
With the global overall trend towards energy conservation and environmental protection, different countries have different requirements for the energy efficiency of electric motors, but the general direction is towards high efficiency and energy conservation. Below, we have collected the control ...Read more -
Some inherent advantages of high-voltage motors are bound to be recognized and favored by the market.
The demand for 10kV motors is greater than that for 6kV motors, and upon careful consideration, it is indeed not without reason. In recent years, with the implementation of energy-saving policies and the upgrading of domestic power grids to reduce line losses, industrial and mining enterprises ha...Read more -
Motor efficiency testing method
Method A – Direct Test Method for Efficiency Method A is also commonly referred to as the input-output method, as during the test, two data necessary for calculating the efficiency can be directly obtained, namely the input power and the output power. When a specified load is applied to the...Read more