Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Select Language
1. Winding ground fault. In the three-phase winding, one or more insulation damages, causing the iron core and the base in the winding to collide and the current to communicate with the base. Such a fault is called a winding ground fault.
2, failure performance. When the winding is grounded, if the inverter motor casing is not connected to the neutral wire or the protection grounding of the casing is not good, the base will be charged, and the electroscope will be tested. If you touch the base with your hand back, you will be shocked by the electric shock and may cause abnormal noise, vibration and overheating during the operation of the variable frequency speed control motor. In severe cases, the variable frequency speed control motor cannot be started.
3. The influence of winding grounding. After the winding has a ground fault, if the inverter is not properly protected, the chassis will be charged. Although the variable frequency speed control motor can still operate, when the human body touches the base, the current will enter the human body and the earth to form a loop, which is dangerous to human life. When one of the phase windings is grounded, the grounding point forms a loop with the base, which reduces the number of turns of the phase winding, thereby increasing the phase current, resulting in a three-phase current imbalance. When two of the one-phase windings are grounded at the same time, the two groundings of the winding are short-circuited between the core and the base. The more turns of the shorted coil, the greater the phase current increases. If two phases of the two-phase winding are grounded at the same time, it will cause phase-to-phase short circuit, burn the coil, and even make the variable frequency speed control motor unable to start running.
April 10, 2023
September 22, 2022
March 17, 2022
April 21, 2023
April 19, 2023
May 13, 2023
May 03, 2023
Through years of technical research and development and practical experience, Yongrong Power Co., Ltd. has developed a new set of cast aluminum manufacturing process, making its products in strength,...
The rotor with shaft is a kind of widely developed and adopted motor design, also known as the magnetic pump rotor, compared with the ordinary motor, it adopts different design concept of the...
Progressive punching is an efficient self-riveting process of fixed rotor, which can realize large-scale and precise riveting operation and is suitable for mass manufacturing production line. The...
Laser cutting provides greater precision in stator and rotor machining, using a highly focused beam that acts as a heat-affected zone during cutting without causing extensive thermal damage to...
Email to this supplier
April 10, 2023
September 22, 2022
March 17, 2022
April 21, 2023
April 19, 2023
May 13, 2023
May 03, 2023
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.