AVR3x — three-phase static voltage stabilizer 18–190 kVA
Country: United Kingdom · Model: AVR3x (AVR3LE, AVR3x50PTZ)
A three-phase static stabilizer of 18–190 kVA for 230/400 V networks evens out an input of −30…+22 % to ±4 %. It is intended for hospitals, telecom sites, administrative buildings and production facilities.
- Power
- 18–190 kVA (20–200 A per phase), up to 3000 A on request
- Voltage
- 230/400 V
- Input range
- −30…+22 %
- Output accuracy
- ±4 %
Technical specifications
| Power | 18–190 kVA (20–200 A per phase), up to 3000 A on request |
|---|---|
| Voltage | 230/400 V |
| Input range | −30…+22 % |
| Output accuracy | ±4 % |
| Regulation | three independent single-phase regulators, no moving parts |
| Efficiency | > 96 % (AVR3LE, AVR3x50PTZ) |
| Options | bypass, circuit breakers, surge arrester up to 20 kA / > 90 kA, phase balancing, IP44 outdoor enclosure, isolation transformers (PTZ) |
Ukrainian replacement/analogue
- Three-phase inverter voltage stabilizers Volter Smart 10.5–81 kW (3×4 … 3×27)
- Three-phase inverter voltage stabilizers Volter EtalonS 10.5–42 kW (3×4 … 3×14)
- Three-phase inverter voltage stabilizers Volter Prostor 21–42 kW (3×7 … 3×14)
- Three-phase inverter voltage stabilizers Volter Parus 21–42 kW (3×7 … 3×14)
- Three-phase inverter voltage stabilizers Volter PTTM 21–42 kW (3×7 … 3×14) with switching rack
- Three-phase stepped thyristor voltage stabilizers Volter 10.5–81 kW (S, PT, PTS, PTSh, PTSSh)
- Three-phase stepped thyristor voltage stabilizers Hertz V3.0, 16.5–53 kW (3×25 … 3×80 A)
- Three-phase stepped thyristor voltage stabilizers Hertz-PRO V3.0, 66–106 kW (3×100 … 3×160 A)
- Three-phase inverter voltage stabilizers 16.5–52.8 kW (Quant 3×5.5 … 3×18) with phase control unit
- Three-phase inverter voltage stabilizers 66–216 kW (Quant-66 … Quant-216) with power combiner
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Each phase has its own single-phase regulator, so a voltage imbalance between phases is compensated independently, which matters for networks with uneven single-phase load. There are no moving parts. The standard range covers 20–200 A per phase, and up to 3000 A is made on request. The AVR3LE version and the outdoor AVR3x50PTZ with isolation transformers have an efficiency above 96 %, and the transformer additionally provides galvanic isolation from the mains. Available options include a bypass, input and output circuit breakers, a surge arrester of 20 kA or more than 90 kA, phase balancing and an IP44 outdoor enclosure for installation outside buildings.
How to choose
Power is calculated by the current of the most heavily loaded phase, not by the average. If the mains rarely goes beyond ±20 % and built-in meters with a log through USB-B are needed, consider AVR-L of 70–140 kVA. For sites above 190 kVA and up to 2 MVA, the thyristor Pro Series AVR3AS / AVR3AE / AVR3AN is suitable. For an outdoor telecom site order AVR3x50PTZ in an IP44 enclosure.
Request a price and lead time
AVR3x — three-phase static voltage stabilizer 18–190 kVA. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the input range of the AVR3x stabilizer?
AVR3x corrects deviations from −30 to +22 % and holds the 230/400 V output to within ±4 %.
Can AVR3x be installed outdoors?
Yes, there is an IP44 outdoor enclosure, and the AVR3x50PTZ version with isolation transformers is designed precisely for outdoor installation.
How does AVR3x cope with phase imbalance?
Three independent single-phase regulators level each phase separately, and phase balancing can be added as an option.
What is the efficiency of the AVR3LE three-phase stabilizer?
For AVR3LE and AVR3x50PTZ efficiency exceeds 96 %; for the other models of the range it is not stated separately in the manufacturer data.
What is the highest current of AVR3x that can be ordered?
In series production 20–200 A per phase, which corresponds to 18–190 kVA, and up to 3000 A is made on request.
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REQUEST
Need a price, lead time or replacement?
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