Shihlin Electric & Engineering Corporation - Shihlin - Ranked No.1 electrical manufacturer in Taiwan with more than 70 years' experience.

It is difficult to start the motor. When the rated load, the motor speed is more than the rated speed | Shihlin Electric

1. Causes of failure ① The power supply voltage is too low; ② The face-connected motor is mistakenly connected; ③ The rotor is welded or broken; ④ The rotor local coil is wrongly connected or reversed; ⑤ Too many turns are added to repair the motor winding; 2. Troubleshooting ① Measure the power supply voltage and try to improve it; ② Correct the connection; ③ Check the welding and breakpoints and repair; ④ Identify the wrong connection and correct it; ⑤ Recover the correct number of turns; ⑥ Reducing the load. Find quick answers in the Shihlin Electric FAQ—selection, wiring and troubleshooting for circuit breakers, magnetic contactors, AC drives, servo, HMI and PLC control.

FAQ: It is difficult to start the motor. When the rated load, the motor speed is more than the rated speed

Shihlin Electric FAQ: Selection, Wiring & Troubleshooting

It is difficult to start the motor. When the rated load, the motor speed is more than the rated speed

1. Causes of failure ① The power supply voltage is too low; ② The face-connected motor is mistakenly connected; ③ The rotor is welded or broken; ④ The rotor local coil is wrongly connected or reversed; ⑤ Too many turns are added to repair the motor winding;

2. Troubleshooting ① Measure the power supply voltage and try to improve it; ② Correct the connection; ③ Check the welding and breakpoints and repair; ④ Identify the wrong connection and correct it; ⑤ Recover the correct number of turns; ⑥ Reducing the load.

It is difficult to start the motor. When the rated load, the motor speed is more than the rated speed | Shihlin Electric

The Shihlin Electric Company Profile introduces a Taiwan-based manufacturer with 70+ years of engineering experience supporting low-voltage power distribution and motor control for industrial customers.

Our scope covers circuit breakers, switchgear and power distribution systems, magnetic switches and magnetic contactors—plus factory automation solutions including inverters, AC drives, servo motors and drives, HMI, controllers, PLC and system integration.

With long-term OEM/ODM collaboration and a growing global network, Shihlin Electric helps you standardize components, reduce downtime, and move from product selection to commissioning with practical technical support.