Elevator Automatic Voltage Regulator AVR | 60kVA AVR
Features:
- Origin: China
- Phase: 3 Phase
- Delivery: FOB/ EXW / CFR
Description
Elevator Automatic Voltage Regulator AVR | 60kVA AVR
Automatic Voltage Regulator (AVR) is a critical safeguard for elevator systems, especially in regions with unstable power grids. A 60kVA AVR is typically sized to support high-traffic commercial elevators or groups of smaller lifts, ensuring that sensitive electronics and heavy-duty motors receive a constant, regulated voltage.
Why a 60kVA AVR is Essential for Elevators
Elevator controllers and inverters (VFDs) are highly sensitive to voltage fluctuations. Without regulation, power surges or sags can lead to:
VFD Faults: Sudden trips (like over-voltage or under-voltage errors) that trap passengers.
PCB Damage: Expensive control boards can burn out due to “dirty” power.
Motor Overheating: Inconsistent voltage forces the traction motor to draw more current, shortening its lifespan.
Technical Specifications:
| Specification | Details |
|---|---|
| Current Type | AC |
| Phase | 3 Phase |
| Input Voltage Range | 304 – 456V AC |
| Input Frequency | 50Hz / 60Hz |
| Output Voltage | 380V / 400V / 415V ±3% |
| Output Frequency | 50Hz / 60Hz |
| Efficiency (AC-AC) | >95% |
| Protection (Under Voltage) | 318 ±7V |
| Protection (Over Voltage) | 426 ±7V |
| Protection (Bypass) | Yes (Manual / Auto Optional) |
| Acoustic (Noise Level) | <50 dB |
| Humidity | 20% ~ 90% |
| Operating Temperature | -5°C ~ 45°C |
Key Features for the Elevator Industry
1. High Instantaneous Overload Capacity
Elevators require a high “starting current” when the motor first moves the cabin. A quality 60kVA AVR can handle momentary loads up to 200% or 300% for a few seconds without tripping.
2. Contactless vs. Servo Motor Type
Servo Motor (Carbon Brush): Common and cost-effective, but requires maintenance (brush replacement) and has a slower response time.
Static/Contactless (SCR/IGBT): Uses solid-state switching. It is much faster, silent, and maintenance-free—ideal for modern high-speed elevators.
3. Bypass Function
Most industrial AVRs include a manual or automatic Bypass Switch. This allows the elevator to run directly from the mains power if the AVR requires maintenance, ensuring the lift remains operational.
Installation and Maintenance Tips
Cooling: Ensure the AVR is installed in a well-ventilated machine room. 60kVA units generate heat during the regulation process.
Phase Monitoring: Modern units feature an LCD screen. Regularly check the display to ensure the input phases are balanced.
Sizing Logic: For a standard elevator with a 15kW to 22kW motor, a 60kVA AVR provides a healthy safety margin, allowing the unit to run cool and handle peaks comfortably.
