In many countries, elevator failures are not caused by the elevator itself, but by an unstable power supply. Elevator operation depends heavily on sensitive components such as controllers, VVVF drives, and door operators. All of which require a stable voltage to function correctly. This is especially common in areas where the power grid is weak, such as Africa, the Middle East, South America, and Southeast Asia.
× Controller board burnt
× Elevator stops randomly
× VVVF drive error
× Door operator malfunction
× Frequent voltage fluctuation from grid or generator
× Frequent maintenance due to power issues
An elevator AVR is designed specifically to protect these critical systems. It corrects incoming voltage and delivers a stable output to ensure elevator safety operation.
√ Designed for elevator controllers & VVVF drives
√ Millisecond-level voltage correction
√ Robust protection against generator + grid fluctuations
√ Compact size for tight machine rooms
| Recommended AVR Model | Elevator Type | Capacity |
|---|---|---|
| AVR-S33-15kVA | Passenger Elevator | 630kg - 800kg |
| AVR-S33-20kVA | Passenger / Small Freight | 1000kg |
| AVR-S33-30kVA | Freight Elevator | 1600kg |
| AVR-S33-50kVA | Heavy Duty Freight | 2000kg+ |
In areas where the power supply is unstable, many control board and inverter failures are caused by voltage fluctuation, . Installing an AVR is a simple way to avoid some of the most expensive electrical repairs.
Yes, absolutely. Our AVRs are compatible with generator power supplies and can handle the frequency fluctuations and harmonic noise common in generator output.
No. They solve different problems.
An AVR keeps the voltage stable during normal operation.
A UPS provides temporary power when the electricity is completely cut off so the elevator can stop safely.
In many projects, both are used together.
A simple rule is to match the AVR capacity to about 1.5 times the motor power.
For example, an elevator with an 11kW motor is typically paired with a 20kVA AVR.
If you are unsure, just send us your motor power or elevator load, and we will recommend the correct size.
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