What causes Roots blower tripping?

What causes Roots blower tripping? In summer, due to hot weather and more thunderstorms, roots blower often trips. In fact, there are many reasons for the tripping of Roots blower, not only because of temperature. Today, we will analyze the reasons for the tripping and power-off protection of the fan.

1. Thunder and heavy rain weather, or the start of large equipment will cause the fluctuation of grid voltage, which may lead to the tripping of inverter voltage loss protection.

2. Due to long-time neglect of maintenance and cleaning, there is too much dust accumulated on the internal plate of the inverter or on the radiator. The dust accumulation reduces the heat dissipation effect of the machine itself, causing the inverter to trip due to the protection of the equipment.

3. There is too much dust and magazines deposited inside Roots blower and they are not cleaned in time, which leads to the reduction of the clearance between rotors and between rotors and between rotors and cavities, thus increasing the load resistance, causing the motor and frequency converter to be overloaded and causing the machine to trip for protection.

4. When selecting the type of frequency converter, the selected model capacity is too small. Generally, the capacity of frequency converter shall be about 20% larger than the rated power of motor to ensure that the frequency converter can still drive when the motor reaches full load.

5. If the power supply voltage is too high or too low, the converter will overheat and cause protection tripping. If the power supply voltage exceeds 410 V, the heat generated inside the converter will increase, leading to protection tripping. If the power supply voltage is lower than 360 V, the working current of the inverter will increase and overcurrent protection tripping will occur.

6. The converter has its own problem. One of the rectifier templates at the back of the converter is damaged, which causes the other two circuits to be in over-current state and trip.