BCW / BCWP / BCWA and DRW capacitor banks and power factor correction units 220–535 V, detuning reactors
Country: Brazil · Model: BCW / BCWP / BCWA / DRW
A line for reactive power compensation in low-voltage networks of 220–535 V. It includes BCW and BCWP capacitor banks of 8.3–100 kvar, the BCWA automatic unit of 20–120 kvar and DRW detuning reactors for networks with harmonics.
- BCW / BCWP
- 8.3–100 kvar, 220–535 V, life 100 000 h
- BCWA (automatic unit)
- 20–120 kvar; 220, 380, 440 or 480 V; life 150 000 h
- DRW (detuning reactors)
- 9.0–63.2 kvar, 220–480 V, detuning 7 % and 14 %
- Frequency
- 50 or 60 Hz
Technical specifications
| BCW / BCWP | 8.3–100 kvar, 220–535 V, life 100 000 h |
|---|---|
| BCWA (automatic unit) | 20–120 kvar; 220, 380, 440 or 480 V; life 150 000 h |
| DRW (detuning reactors) | 9.0–63.2 kvar, 220–480 V, detuning 7 % and 14 % |
| Frequency | 50 or 60 Hz |
| BCWP degree of protection | IP30 |
| BCWA dimensions (H × W × D) | 1100 × 800 × 350 mm |
| BCWA weight | 73–89 kg |
| BCWA breaking capacity (Icu) | 10 kA |
| DRW insulation | 1 kV, class H (180 °C) |
| Standards | IEC 60831-1/2 (BCW, BCWP); IEC 61439-1/2 (BCWA); IEC 61558-2-20 (DRW) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The capacitors are made of self-healing metallized polypropylene film with overpressure protection and are delta-connected. BCW is a compact three-phase cabinet without forced ventilation for individual compensation of large loads; permissible current 1.3 of rated, inrush up to 100 of rated, life 100 000 h, frequency 50 or 60 Hz. BCWP adds protection and switching of individual blocks, namely a moulded-case circuit breaker, contactors, time relays and a handle on the front cover. The specific power is 22 % higher, and the cables are not disconnected. The cabinet is RAL 7022, IP30, and discharge resistors reduce the voltage to 75 V in 30–120 s. BCWA is assembled from the manufacturer's own components on the PFW03 power factor controller and UCWT HD capacitors, AGW breakers are installed at the incomer and in each step, and the enclosure is TTW01-QD per IEC 61439-1/2. Life 150 000 h, dimensions 1100 × 800 × 350 mm, weight 73–89 kg, RAL 7035, Icu 10 kA, impulse voltage 8 kV. DRW reactors are connected in series with the capacitors, with detuning of 7 % and 14 %, 9.0–63.2 kvar, 220–480 V, insulation 1 kV class H (180 °C), thermal protection in the middle winding and vacuum resin impregnation. For 7 % at 60 Hz the series resonance falls at 226.8 Hz, and the rated voltage of the capacitors is selected taking its increase into account. The reactors are installed above the capacitors with forced ventilation.
How to choose
For a constant load without regulation take BCW. When protection and switching of blocks are needed in the cabinet itself, choose BCWP. For a variable load BCWA is suitable, because the power is divided into steps and regulated automatically. Where harmonics are present, the bank is equipped with DRW reactors with detuning of 7 % or 14 %. Separate UCWT HD capacitors and the PFW03 controller are described in the UCWT and PFW03 / PFWD01 items.
Request a price and lead time
BCW / BCWP / BCWA and DRW capacitor banks and power factor correction units 220–535 V, detuning reactors. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How does BCWP differ from BCW?
BCWP has a built-in moulded-case circuit breaker, contactors and time relays, and the specific power is 22 % higher. BCW is a compact cabinet without these devices.
What are the power and voltage of the BCWA automatic unit?
BCWA is designed for 20–120 kvar and 220, 380, 440 or 480 V. The life is 150 000 h.
What are DRW detuning reactors for?
They are connected in series with the capacitors in networks with harmonics. They are made with detuning of 7 % and 14 % for 9.0–63.2 kvar.
What are the weight and dimensions of BCWA?
Dimensions are 1100 × 800 × 350 mm (H × W × D), weight 73–89 kg depending on power.
What degree of protection does the BCWP cabinet have?
The degree of protection is IP30, and the cabinet is painted RAL 7022.
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