The difference between high-frequency and low-frequency inverters lies in their design and underlying technology. While low-frequency inverters may not be as compact or efficient, they excel in durability and can handle high surge loads, making them ideal for heavy-duty applications.
[pdf] High-frequency inverters deploy high-frequency switching systems to chop direct current power at high frequency with high-frequency tubes like MOSFETs. They then shift the high-frequency pulses into stable alternating current with high-frequency filter circuits and transformers.
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In this article we look at the 3 most common faults on inverters and how to fix them: 1. Overvoltage and Undervoltage. This is caused by a high intermediate circuit DC voltage. This can arise from high inertia loads decelerating too quickly, the motor turns into a generator and increases the inverter’s DC voltage. .
Overvoltage This is caused by a high intermediate circuit DC voltage. This can arise from high inertia loads decelerating too quickly, the motor turns into a generator and. .
This is detected by an imbalance of the currents supplying the motor implying a leakage current to earth is present. This is usually caused by poor insulation resistance to earth. POSSIBLE FIXES: 1. Check insulation resistance of the motor and cabling. 2.. .
We hope you found the information in this article useful if you have a fault not listed and you need technical assistance contact our engineering team. .
This occurs when the motor is taking too much current with reference to the value in Group 99, motor data. POSSIBLE FIXES: 1. Check that motor’s load is not excessive. 2. Check acceleration time – too fast an acceleration of a high inertia load will cause too.
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