QDTB® Transformer

BKSC-35-500

BKSC Series • 500kVA • 35/35 kV

BKSC-35-500 is a 500 kVA, 35/35 kV reactor manufactured by Shandong Yaqing Electric Power Technology Co., Ltd. (QDTB) in Qingdao, China, designed and tested in accordance with GB10229, IEC 60076-6, vector group Parallel, short-circuit impedance 6%, approximate weight 1300 kg. Available on FOB Qingdao terms; datasheet, routine test report and GA drawing issued with each unit.

Technical Specifications

BKSC-35-500 technical specifications
ModelBKSC-35-500
Rated Capacity500kVA
HV Voltage35 kV
LV Voltage35 kV
Frequency50 Hz
Vector GroupParallel
Short-circuit Impedance6%
CoolingONAN
InsulationA (105°C)
Temperature Rise65 K
Weight1300 kg
Dimensions750×500×680 mm
Applied StandardGB10229, IEC 60076-6
Load-case data unavailable
  • · 铭牌缺字段：noLoadLoss, loadLoss（不猜、不补，需技术部补录）

Nameplate data is insufficient or self-contradictory, so no figures are given — we do not estimate.

Product Image & Parameters

BKSC - QDTB

Images are for illustration purposes only

BKSC-35-500

BKSC Series

Capacity
500kVA
HV Voltage
35kV
LV Voltage
35kV
Frequency
50Hz
Short-circuit impedance
6%
Cooling method
ONAN
Applied standard
GB10229, IEC 60076-6
Connection
Parallel
Insulation class
A (105°C)
Energy SavingLow Loss

Product Drawing

Reactor - BKSC-35-500

APPEARANCE — AIR-CORE COIL
REACTORinsulator pedestalBKSC-35-500
CONNECTION — SERIES & SHUNT
REACTOR — SERIES & SHUNTSERIES (line)series reactorSHUNT (bus)shunt reactorBKSC-35-500
HARMONIC FILTER — LC BRANCH
DETUNED HARMONIC FILTER (LC)reactorcapacitorBUSBKSC-35-500

SPECIFICATIONS

1. Model (Product code):BKSC-35-500
2. Series:BKSC
3. Rated Capacity:500 kVar
4. Rated voltage:35 kV
5. Rated Current:8.25 A
6. Frequency:50 Hz
7. Reactance factor:6%
8. Temperature Rise:65 K
9. Insulation class:A (105°C)
10. Cooling method:ONAN
11. Connection group:Parallel
12. Standard:GB10229, IEC 60076-6
13. Weight:1300

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

Product Description

BKSC-35-500 shunt reactor for MV/HV power system. Compensates capacitive reactive power of long transmission lines. Dry-type iron-core construction.

Instant Selection & Quote Calculator

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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.

Certification
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BKSC-35-500 - Frequently Asked Questions

QWhat are the main applications of BKSC-35-500?

BKSC-35-500 (BKSC series, Reactors) is widely used in inverter protection, harmonic filtering and power factor improvement. Can be flexibly configured according to actual project requirements.

QWhat are the main technical specifications of BKSC-35-500?

Key specifications: Capacity: 500kVA, HV 35 kV, LV 35 kV, Frequency 50 Hz, Impedance 6%, Connection Parallel, Cooling ONAN, Standard GB10229, IEC 60076-6.

QHow to get a quote and technical documentation?

Contact via the "Send Inquiry" button below, or contact sales at Alice@qdtb-transformer.com / +86 13698683193. We provide detailed quotations and technical documentation instantly.

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