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What causes the Roots blower to trip?
Release time:
2022-06-29
In summer, due to the hot weather and frequent thunderstorms, the Roots blower often experiences tripping situations. In fact, there are many reasons for the tripping of the Roots blower, not just temperature factors. Today, we will analyze the reasons that lead to the tripping and power protection of the fan. 1. Thunderstorms or the startup of large equipment can cause fluctuations in the power grid voltage, which may lead to the frequency converter's under-voltage protection tripping. 2. Due to long periods of neglect in maintenance and cleaning, excessive dust accumulation on the internal boards of the frequency converter or on the heat sink reduces the machine's cooling efficiency, causing the frequency converter to trip due to protective measures. 3. Excessive dust and debris accumulation inside the Roots blower, not cleaned in time, reduces the gaps between rotors and between the rotor and the chamber, thereby increasing load resistance, which causes the motor and frequency converter to be overloaded, leading to machine tripping protection. 4. When selecting the frequency converter, the chosen model capacity is too small. Generally, the capacity of the frequency converter should be about 20% larger than the rated power of the motor to ensure that when the motor reaches full load, the frequency converter can still drive it. 5. Power supply voltage that is too high or too low can cause the frequency converter to overheat and trip for protection. If the power supply voltage exceeds 410 volts, it will increase the internal heat generation of the frequency converter, leading to tripping protection. If the power supply voltage is below 360 volts, it will increase the working current of the frequency converter, resulting in overcurrent protection tripping. 6. Issues with the frequency converter itself, such as damage to one of the rectifier templates on the back of the frequency converter, can cause the other two paths to operate in an overcurrent state, resulting in tripping.
In summer, due to the hot weather and frequent thunderstorms, the Roots blower often experiences tripping. In fact, there are many reasons for the tripping of the Roots blower, not just temperature factors. Today, we will analyze the reasons that lead to the tripping and power protection of the fan.
1. Thunderstorms or the startup of large equipment can cause fluctuations in the power grid voltage, which may lead to the frequency converter's under-voltage protection tripping.
2. Due to long periods of neglect in maintenance and cleaning, excessive dust accumulation on the internal boards of the frequency converter or on the heat sink reduces the machine's cooling efficiency, causing the frequency converter to trip due to protective measures.
3. Excessive dust and debris accumulation inside the Roots blower, not cleaned in time, reduces the gaps between rotors and between the rotor and the chamber, thereby increasing load resistance, which causes the motor and frequency converter to be overloaded and leads to tripping protection.
4. When selecting the frequency converter, the chosen model capacity is too small. Generally, the capacity of the frequency converter should be about 20% larger than the rated power of the motor to ensure that the frequency converter can still drive the motor when it reaches full load.
5. Power supply voltage that is too high or too low can cause the frequency converter to overheat and trip for protection. A power supply voltage exceeding 410 volts will increase the internal heat generation of the frequency converter, leading to tripping protection. A power supply voltage below 360 volts will increase the working current of the frequency converter, resulting in overcurrent protection tripping.
6. Issues with the frequency converter itself, such as damage to one of the rectifier modules on the back of the frequency converter, can cause the other two to operate in an overcurrent state, leading to tripping.
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