BKD / BKS 220–1000 kV oil-immersed shunt reactors
BKD and BKS are oil-immersed shunt reactors for lines and substations of 220–1000 kV rated from 60 to 320 Mvar. Single-phase models work in 500, 750 and 1000 kV networks, and three-phase single-tank units compensate offshore wind farm cables.
- 1000 kV
- BKD-320000/1100: 320 Mvar, 1100/√3 kV, 503.9 A, single-phase single-limb, losses ≤470 kW
- 750 kV
- BKD-140000/750: 140 Mvar, 800/√3 kV, ONAN, losses ≤130 kW
- 500 kV
- BKD-60000/500: 60 Mvar, 550/√3 kV, losses ≤80 kW; BKS-240000/500: three-phase 240 Mvar, 525 kV (offshore wind farms)
- 220 kV
- BKS-90000/220: three-phase 90 Mvar, 230 kV (offshore wind farms)
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Shunt reactors compensate the excess charging power of high- and extra-high-voltage lines. They limit power-frequency voltage rise and switching overvoltages, raise the power factor, reduce losses and improve voltage stability. The manufacturer built the world's first 1000 kV shunt reactor for a pilot ultra-high-voltage AC line. By purpose the series corresponds to the РОДЦ and РТДУ reactors of 500–1150 kV.
The single-phase single-limb BKD-320000/1100, rated 320 Mvar, works at 1000 kV substations. The rated voltage is 1100/√3 kV, current 503.9 A, impedance 1260 Ohm, and insulation SI1800 LI2250 AC1100 kV, with the neutral per the manufacturer Um145 LI650 AC275. A direct HV terminal increases safety, and special stray-field control removes overheating. Vibration is reduced to 10 µm and noise to 64 dB, so the reactor can be placed near residential areas. Losses are up to 470 kW, cooling is ONAN (ONAF), the top-oil temperature rise is 50 K and the average winding temperature rise 55 K.
For 750 and 500 kV lines there are the single-phase BKD-140000/750 (140 Mvar, 800/√3 kV, 3047 Ohm, losses up to 130 kW) and BKD-60000/500 (60 Mvar, 550/√3 kV, 2521 Ohm, losses up to 80 kW). They are light and compact, naturally cooled (ONAN), with low noise and vibration and a monoblock design that is convenient to install and maintain. The oil temperature rise is no more than 49 K and that of the hottest spot 59 K.
For offshore wind farms the manufacturer makes three-phase single-tank reactors. The BKS-240000/500 is rated 240 Mvar at 525 kV, with a current of 263.9 A and losses up to 480 kW; the BKS-90000/220 is rated 90 Mvar at 230 kV, 225.9 A and up to 240 kW respectively. They compensate the charging power of submarine cables and export lines. The lightweight miniaturised design lowers the cost of the offshore platform, the core is pressed across all three phases at once, the tank is sealed and strong, and corrosion and seismic resistance are high.
The reactors of the series are installed on lines and substations of 220–1000 kV, in offshore wind farm export schemes and on long cable lines.
Technical specifications
| 1000 kV | BKD-320000/1100: 320 Mvar, 1100/√3 kV, 503.9 A, single-phase single-limb, losses ≤470 kW |
|---|---|
| 750 kV | BKD-140000/750: 140 Mvar, 800/√3 kV, ONAN, losses ≤130 kW |
| 500 kV | BKD-60000/500: 60 Mvar, 550/√3 kV, losses ≤80 kW; BKS-240000/500: three-phase 240 Mvar, 525 kV (offshore wind farms) |
| 220 kV | BKS-90000/220: three-phase 90 Mvar, 230 kV (offshore wind farms) |
| Vibration / noise | from 10 µm / from 64 dB (1000 kV) |
| Cooling | ONAN (ONAF) |
Replacement for
РОДЦ-60000/500, РОДЦ-110000/750 (oil-immersed shunt); controlled РТУ-25000/110, РТДУ-180000/500; 1000 kV has no direct equivalent
selected by purpose and main parameters, please confirm with our manager
Request a price and lead time
BKD / BKS 220–1000 kV oil-immersed shunt reactors. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8504 50 00 00 |
|---|---|
| HS, 6 digits | 8504 50 |
| CN (EU) | 8504 50 95 |
| HTSUS (USA) | 8504 50 00 00 |
| China customs tariff | 8504 50 00 00 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
What are the parameters of the BKD-320000/1100 reactor?
Rating 320 Mvar, voltage 1100/√3 kV, current 503.9 A, impedance 1260 Ohm. Losses up to 470 kW, ONAN (ONAF) cooling.
Can a 1000 kV reactor be installed near housing?
Yes, the vibration of the BKD-320000/1100 is reduced to 10 µm and noise to 64 dB. The manufacturer states this possibility directly.
Which reactors suit offshore wind farms?
The three-phase BKS-240000/500 rated 240 Mvar at 525 kV and the BKS-90000/220 rated 90 Mvar at 230 kV. They compensate the charging power of submarine cables.
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