OPTIM P&P — automatic LV capacitor banks with contactors (without reactors)
Country: Spain · Model: OPTIM 3/5/8/9 P&P
OPTIM P&P automatic capacitor banks for reactive power compensation in 0.4 kV networks with variable load, without reactors. The steps are switched by contactors, and the sizes OPTIM 3, 5, 8 and 9 cover 50 and 60 Hz versions.
- Series
- OPTIM 3, 5, 8, 9 P&P (wall-mounted and floor-standing), 50 and 60 Hz versions
- Voltage
- network 400/430 V; reinforced capacitor voltage 440 V
- Example
- OPTIM 3 P&P-62.5-440: 62.5 kVAr (440 V) / 51 kVAr (400 V), steps 12.5+25+25, 400×600×260 mm, 20 kg
- Overvoltage
- 10 % 8 h/day; 15 % 15 min; 20 % 5 min; 30 % 1 min
Technical specifications
| Series | OPTIM 3, 5, 8, 9 P&P (wall-mounted and floor-standing), 50 and 60 Hz versions |
|---|---|
| Voltage | network 400/430 V; reinforced capacitor voltage 440 V |
| Example | OPTIM 3 P&P-62.5-440: 62.5 kVAr (440 V) / 51 kVAr (400 V), steps 12.5+25+25, 400×600×260 mm, 20 kg |
| Overvoltage | 10 % 8 h/day; 15 % 15 min; 20 % 5 min; 30 % 1 min |
| Overload | 1.3 In |
| Losses | < 0.5 W/kVAr |
| Discharge | 75 V / 3 min |
| Control | contactors 230 V, CT In/5 A |
| Enclosure | RAL 7035 / RAL 3005, IP21 |
| Climate | class D: up to +55 °C, min. −50 °C |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The load changes tracked by the bank are slow (seconds), so the steps are switched by contactors with a control voltage of 230 V. The set includes a computer series reactive power controller, fuses and capacitors, and the current signal is supplied by an external In/5 A transformer. Smaller models are wall-mounted with a built-in main circuit breaker, larger ones are floor-standing cabinets. The enclosure is RAL 7035 sheet steel with RAL 3005 elements, IP21, with natural or forced ventilation. The rated network voltage is 400–430 V, and the design capacitor voltage is 440 V. OPTIM 3 P&P-62.5-440 gives 62.5 kVAr at 440 V (51 kVAr at 400 V), three steps of 12.5 + 25 + 25 kVAr, a 35 mm² cable, and an enclosure of 400 × 600 × 260 mm, 20 kg. Permissible overvoltages are 10 % for 8 h per day, 15 % for up to 15 min, 20 % for up to 5 min, 30 % for up to 1 min, overload 1.3 In, capacitance tolerance −5/+10 %, losses below 0.5 W/kVAr, discharge to 75 V in 3 min. Temperature class D, daily average 45 °C, annual average 35 °C, maximum 55 °C, minimum −50 °C, humidity up to 80 %.
How to choose
The series is suitable for 0.4 kV networks without significant harmonics, for example industrial workshops, offices, commercial buildings, pumping and ventilation installations. For networks with harmonics there is the OPTIM FR series, and for rapidly changing load the thyristor OPTIM EMK/FRE. Size 3, 5, 8 or 9 is chosen by the required output and number of steps.
Request a price and lead time
OPTIM P&P — automatic LV capacitor banks with contactors (without reactors). We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the output of the OPTIM 3 P&P-62.5-440 bank?
62.5 kVAr at 440 V (51 kVAr at 400 V), three steps of 12.5 + 25 + 25 kVAr.
What switches the OPTIM P&P steps?
Contactors with a control voltage of 230 V, so the bank suits a slowly changing load.
What overvoltages do the capacitors allow?
10 % for up to 8 h per day, 15 % for up to 15 min, 20 % for up to 5 min, 30 % for up to 1 min.
What are the protection rating and enclosure colour?
IP21, RAL 7035 sheet steel with RAL 3005 elements.
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