Company News

International Newsletter

Working system of electric motor

Working system of electric motor

The working system of the motor is an explanation of the load condition of the motor. It includes starting, electric braking, no-load, break-energy stop, and the duration and sequence of these stages. The working system of the motor needs to be considered when selecting the rated capacity of the motor. There are S1 ~ S10 motor working system, the following mainly introduces S1 ~ S3.

30

2023

/

10

How to Reduce the Damage of Inverter to Motor

How to Reduce the Damage of Inverter to Motor

Install reactors at the output of the inverter: This measure is the most commonly used, but it should be noted that this method has a certain effect on shorter cables (below 30 meters), but sometimes the effect is not ideal.

30

2023

/

10

Selection of motor voltage and speed

Selection of motor voltage and speed

The rated speed of the motor is selected according to the requirements of the production machinery. When determining the rated speed of the motor, the transmission ratio of the mechanical deceleration mechanism must be considered. The two cooperate with each other and can be determined through a comprehensive comparison of technology and economy. Generally, the motor speed is not less than 500r/min, because when the power is constant, the lower the motor speed, the larger its size, the more expensive, and the lower the efficiency. If you choose a high-speed motor, it is bound to increase the mechanical deceleration mechanism The transmission ratio of the machine makes the mechanical transmission part complicated.

30

2023

/

10

Operating characteristics of three-phase asynchronous motors

Operating characteristics of three-phase asynchronous motors

The working characteristics of three-phase asynchronous motors The working characteristics of asynchronous motors refer to the relationship between the rotation speed N, stator current I1, power factor cosφ1, electromagnetic torque T, efficiency η, etc. of the motor and the output power P2 under the condition of rated voltage and rated frequency operation, I .e. when U1 = UN,f = fN, n, I1, cosφ1, t, n = f(P2). Since the asynchronous motor is an AC motor, it is necessary to consider the power factor for the power grid. At the same time, due to the unilateral excitation, the excitation current and the load current coexist in the stator winding, so the stator current should be paid attention.

30

2023

/

10

< 1...10111213 >

Contact Us

Mobile: 0086-13992809772                                       Landline: 0086- (0)29-87421008

Mailbox:renzhiguo@ramotor.cn                              Address:No. 210 Xi Yi Road, Xin Cheng District , 710004, Xi'an, China

©2023 SHAANXI RAMOTOR TECHNOLOGY CO., LTD.      

Powered by www.300.cn | SEO

Business License