ESR — single-phase static voltage stabiliser 3–100 kVA
Country: United Kingdom · Model: ESR
The ESR single-phase static stabiliser of 3–100 kVA evens out voltage when the grid deviates by up to ±50 %. Microprocessor control and no moving parts almost remove the maintenance question, so the series is installed in commercial buildings and on industrial lines.
- Power
- 3–100 kVA
- Grid
- 220–240 V (H series), 110–127 V (L series)
- Input voltage range
- up to ±50 %
- Efficiency
- ≥ 95 %
Technical specifications
| Power | 3–100 kVA |
|---|---|
| Grid | 220–240 V (H series), 110–127 V (L series) |
| Input voltage range | up to ±50 % |
| Efficiency | ≥ 95 % |
| Protection | TVSS, class II surge arresters, automatic electronic bypass |
| Version | IP20; option IP54 / NEMA 3 |
| Options | input isolation transformer (-PC) |
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
- Single-phase inverter voltage stabilizers Volter 11–27 kW (Smart, EtalonS, Prostor, Parus, PTTM)
- Single-phase stepped thyristor voltage stabilizers Volter 9–27 kW and PROM series 22 kW
- Single-phase stepped voltage stabilizers Hertz V3.0, 11–27.5 kW (50 … 125 A)
- Single-phase inverter voltage stabilizers 11–17.6 kW (Quant-11, -14, -18) for industry
- 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
Regulation is done by electronics and not by a servo drive with a brush, so the stabiliser has no wearing assemblies. The H series works on 220–240 V grids and the L series is designed for 110–127 V. Efficiency is at least 95 %. TVSS and class II surge arresters protect against surges, and an automatic electronic bypass feeds the grid to the load directly, bypassing the power section. An IP20 enclosure is enough for a switchroom, and in dusty rooms the IP54 / NEMA 3 option is taken. With option -PC an isolation transformer is placed at the input, and the unit becomes a power conditioner in front of sensitive equipment or a UPS.
How to choose
Choose the power with a margin over the total load in kVA, and the H or L series by the nominal grid voltage. For a three-phase supply there is the ESR-3P-T1F for 6–400 kVA. If 230 V ±1 % accuracy is needed for a server room or telecom up to 14 kVA, look at the PWM, and for household appliances up to 5 kVA the VR is enough.
Request a price and lead time
ESR — single-phase static voltage stabiliser 3–100 kVA. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What input voltage deviation can the ESR withstand?
The stabiliser works with grid deviations of up to ±50 %, that is, from half the nominal to one and a half times the nominal.
Does the ESR static stabiliser need maintenance?
Practically none. It has no servo drive or brushes and a microprocessor regulates, so it is enough to remove dust from the ventilation grilles periodically.
What does option -PC give in the ESR stabiliser?
It is an input isolation transformer. It galvanically separates the load from the grid and turns the stabiliser into a power conditioner.
What is the efficiency of the single-phase ESR stabiliser?
At least 95 %. On large models up to 100 kVA the losses are noticeable, so the switchroom needs ventilation.
Can the ESR be installed outside a switchroom?
The standard IP20 enclosure is intended for dry rooms, and for dusty areas order IP54 / NEMA 3.
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Need a price, lead time or replacement?
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