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BKSC Series Reactors

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BKSC Reactors

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BKSC Series - Three-Phase Dry-Type Shunt Reactors for Power Compensation

The BKSC series three-phase dry-type iron-core shunt reactors are designed for MV/HV power systems to compensate capacitive reactive power of long transmission lines. Features dry-type iron-core construction for fire-safe indoor installation with reliable performance.

Model Number Breakdown

BReactor (Biyaoqi / Inductor)
KDry-type (Kongqi cooled / Air-cooled)
SThree-phase (Sanxiang)
CIron-core design (Core type)
29+
Available Models
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Applications

1

High-voltage transmission line compensation

2

Urban cable network reactive power management

3

Power generation plant auxiliary systems

4

Industrial HV/MV power distribution

Key Features

  • Dry-type iron-core construction for fire safety
  • Compensates capacitive reactive power in long transmission lines
  • Suitable for 6kV to 35kV power systems
  • Capacity range from 100kVAR to 5000kVAR

Specifications Range

All specifications and dimensions can be customized upon request

Model Selector

Key parametersModel Range
Capacity100–10000 kvar
Rated current (A)9.62, 19.25, 28.87, 48.11, 76.98, 96.23…
Rated voltage (kV)6, 10, 35
Frequency (Hz)50
Impedance (%)6
StandardGB10229, IEC 60076-6
Select 2-3 models to compare
CompareModelSeriesCapacity (kVA)HV Voltage (kV)Current (A)Frequency (Hz)ReactanceTemp. rise (K)InsulationCoolingStandardWeightDimensions
BKSC-6-100BKSC100kVA69.6250665A (105°C)ONANGB10229, IEC 60076-6430 kg550×370×520 mm
BKSC-6-200BKSC200kVA619.2550665A (105°C)ONANGB10229, IEC 60076-6720 kg630×420×580 mm
BKSC-6-300BKSC300kVA628.8750665A (105°C)ONANGB10229, IEC 60076-6950 kg680×450×620 mm
BKSC-6-500BKSC500kVA648.1150665A (105°C)ONANGB10229, IEC 60076-61300 kg750×500×680 mm
BKSC-6-800BKSC800kVA676.9850665A (105°C)ONANGB10229, IEC 60076-61840 kg835×560×760 mm
BKSC-6-1000BKSC1000kVA696.2350665A (105°C)ONANGB10229, IEC 60076-62200 kg900×600×800 mm
BKSC-6-1500BKSC1500kVA6144.3450665A (105°C)ONANGB10229, IEC 60076-63000 kg1000×650×900 mm
BKSC-6-2000BKSC2000kVA6192.4550665A (105°C)ONANGB10229, IEC 60076-63800 kg1100×700×950 mm
BKSC-6-3000BKSC3000kVA6288.6850665A (105°C)ONANGB10229, IEC 60076-65200 kg1200×800×1050 mm
BKSC-6-5000BKSC5000kVA6481.1350665A (105°C)ONANGB10229, IEC 60076-68000 kg1350×900×1200 mm
BKSC-6-10000BKSC10000kVA6962.2550665A (105°C)ONANGB10229, IEC 60076-614000 kg1600×1000×1500 mm
BKSC-10-100BKSC100kVA105.7750665A (105°C)ONANGB10229, IEC 60076-6430 kg550×370×520 mm
BKSC-10-200BKSC200kVA1011.5550665A (105°C)ONANGB10229, IEC 60076-6720 kg630×420×580 mm
BKSC-10-300BKSC300kVA1017.3250665A (105°C)ONANGB10229, IEC 60076-6950 kg680×450×620 mm
BKSC-10-500BKSC500kVA1028.8750665A (105°C)ONANGB10229, IEC 60076-61300 kg750×500×680 mm
BKSC-10-800BKSC800kVA1046.1950665A (105°C)ONANGB10229, IEC 60076-61840 kg835×560×760 mm
BKSC-10-1000BKSC1000kVA1057.7450665A (105°C)ONANGB10229, IEC 60076-62200 kg900×600×800 mm
BKSC-10-1500BKSC1500kVA1086.650665A (105°C)ONANGB10229, IEC 60076-63000 kg1000×650×900 mm
BKSC-10-2000BKSC2000kVA10115.4750665A (105°C)ONANGB10229, IEC 60076-63800 kg1100×700×950 mm
BKSC-10-3000BKSC3000kVA10173.2150665A (105°C)ONANGB10229, IEC 60076-65200 kg1200×800×1050 mm
BKSC-10-5000BKSC5000kVA10288.6850665A (105°C)ONANGB10229, IEC 60076-68000 kg1350×900×1200 mm
BKSC-10-10000BKSC10000kVA10577.3550665A (105°C)ONANGB10229, IEC 60076-614000 kg1600×1000×1500 mm
BKSC-35-500BKSC500kVA358.2550665A (105°C)ONANGB10229, IEC 60076-61300 kg750×500×680 mm
BKSC-35-1000BKSC1000kVA3516.550665A (105°C)ONANGB10229, IEC 60076-62200 kg900×600×800 mm
BKSC-35-2000BKSC2000kVA3532.9950665A (105°C)ONANGB10229, IEC 60076-63800 kg1100×700×950 mm
BKSC-35-3000BKSC3000kVA3549.4950665A (105°C)ONANGB10229, IEC 60076-65200 kg1200×800×1050 mm
BKSC-35-5000BKSC5000kVA3582.4850665A (105°C)ONANGB10229, IEC 60076-68000 kg1350×900×1200 mm
BKSC-35-8000BKSC8000kVA35131.9750665A (105°C)ONANGB10229, IEC 60076-611600 kg1500×960×1380 mm
BKSC-35-10000BKSC10000kVA35164.9650665A (105°C)ONANGB10229, IEC 60076-614000 kg1600×1000×1500 mm

Product Drawing

Reactor - BKSC-6-1500

APPEARANCE — AIR-CORE COIL
REACTORinsulator pedestalBKSC-6-1500
CONNECTION — SERIES & SHUNT
REACTOR — SERIES & SHUNTSERIES (line)series reactorSHUNT (bus)shunt reactorBKSC-6-1500
HARMONIC FILTER — LC BRANCH
DETUNED HARMONIC FILTER (LC)reactorcapacitorBUSBKSC-6-1500

Note: This is a general product illustration. For detailed technical drawings and specifications, please contact our engineering team.

Selection Guide

1

Purpose

Shunt reactor to absorb capacitive reactive power on long lines.

2

Application

Long transmission lines and cable networks to control voltage rise at light load.

3

Construction

Dry iron-core construction.

- Frequently Asked Questions

What is a shunt reactor?

A reactor connected in parallel to absorb capacitive reactive power on long lines.

When is BKSC used?

On long transmission lines and cable networks to control voltage rise during light load.

Dry or oil?

BKSC uses dry iron-core construction.

Instant Selection & Quote Calculator

Select your specifications to get an estimated price instantly.

1 · Configure
More options(2)
Reactor Inductance ↔ Rating (mH ↔ kvar)

Fill in any two of inductance L, rated current I and reactive power Q — the third is derived. The phase basis (single / three-phase) must be chosen, because the two bases differ by exactly a factor of three.

X = 2πfL · U_L = I·X · Q₁ = I²X (single-phase) · Q₃ = 3I²X (three-phase)

Inputs
Phase basis (required)
Result
Reactance X = 2πfL—
Inductance L—
Rated current I—
Voltage across the reactor U_L = I·X—
Reactive power, single-phase basis: Q₁ = I²X—
Reactive power, three-phase basis: Q₃ = 3I²Xyour basis—

Still required to complete the calculation: inductance L, rated current I, reactive power Q.

Worked example (the customer case)

L = 1 mH, I = 150 A, f = 50 Hz → X = 0.3142 Ω, U_L = 47.12 V, single-phase Q₁ = 7.07 kvar, three-phase Q₃ = 21.21 kvar.

Single-phase and three-phase differ by exactly a factor of three — always state which basis a kvar figure is quoted on.

Insulation level (IEC 60071-1)
Not specified — the factory parameter sheet is required.
Select a rated voltage in the configuration above to see the matching IEC class.
Non-IEC enquiry case:The enquired Um 15 kV / LI 105 kV / AC 52 kV is not an IEC standard combination (no 15 kV and no 105 kV in IEC lists); it belongs to regional systems such as JEC (Japan) / CNS (Taiwan), where a 15 kV class is about LI 95-110 / AC 50-55. Confirm the system before quoting and map to the nearest IEC class (17.5 kV).

The product library (quote-data) carries no per-model inductance or rated current, so no value is auto-filled for a model; the actual figures are confirmed on the factory parameter sheet. An em dash means the value is unavailable — it is never rendered as zero.

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