QDTB® Transformer

KYN28A-12/630-31.5

KYN28A Series •

KYN28A-12/630-31.5 is a high voltage switchgear manufactured by Shandong Yaqing Electric Power Technology Co., Ltd. (QDTB) in Qingdao, China, designed and tested in accordance with GB3906, IEC 62271-200, approximate weight 1000 kg. Available on FOB Qingdao terms; datasheet, routine test report and GA drawing issued with each unit.

Technical Specifications

KYN28A-12/630-31.5 technical specifications
ModelKYN28A-12/630-31.5
Rated Capacity
HV Voltage12 kV
Frequency50 Hz
Weight1000 kg
Dimensions800×1500×2300 mm
Applied StandardGB3906, IEC 62271-200

Product Image & Parameters

KYN28A - QDTB

Images are for illustration purposes only

KYN28A-12/630-31.5

KYN28A Series

HV Voltage
12kV
Frequency
50Hz
Applied standard
GB3906, IEC 62271-200
HV side current
630A
Dimensions
800×1500×2300 mm
Weight
1000kg
Energy SavingLow Loss

Product Drawing

High Voltage Switchgear - KYN28A-12/630-31.5

APPEARANCE — METAL-CLAD CABINET
HV SWITCHGEAR — FRONT VIEWpressure reliefrelay / meter panelbreaker view windowcable compartmentKYN28A-12/630-31.5
STRUCTURE — THREE COMPARTMENTS
BUSBAR ROOMBREAKER TRUCKwithdrawableCABLE ROOMKYN28A-12/630-31.5
MAIN CIRCUIT — SINGLE-LINE
HV SWITCHGEAR — MAIN CIRCUITBUSCTgroundPTCABLE OUTKYN28A-12/630-31.5
SWITCHGEAR LINE-UP
SWITCHGEAR LINE-UP (INCOMING + FEEDERS)INF1F2F3common busbarKYN28A-12/630-31.5

SPECIFICATIONS

1. Model (Product code):KYN28A-12/630-31.5
2. Series:KYN28A
3. Rated voltage:12 kV
4. Rated Current:630 A
5. Breaking Current:31.5 kA
6. Short-time Withstand Current:31.5 kA
7. Protection Level:IP4X
8. Mechanical Life:10000 ops
9. Operating Mechanism:Spring-operated (integrated VCB)
10. Rated frequency:50 Hz
11. Standard:GB3906, IEC 62271-200
12. Weight:1000

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

Product Description

KYN28A-12/630-31.5 indoor metal-clad withdrawable HV switchgear. For power plants, substations, industrial distribution. Type-tested to IEC 62271-200.

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Derived Ratings (calculated from the configuration)

The values below are computed from what you selected above. Anything that cannot be computed yet is shown as an em dash — never as zero.

Iₙ = S / (√3·U) · I_sc = 100·Iₙ / uₖ · S_sc = √3·U·I_sc · I_p = k·Iₖ

Inputs taken from the configuration
System voltage: not specified
Short-time withstand current: not specified
Peak withstand current: not specified
Switchgear system basis: HV switchgear — IEC 62271-1
Frequency: —
Result
Short-time withstand current Iₖ / I_cw—
Peak withstand current I_p / I_pk—
Peak factor k—
System voltage → —

Still required to complete the calculation: rated capacity S, impedance voltage uₖ, short-time or peak withstand current.

Per-model values (P0 / Pk / uₖ declared by the factory, losses, noise, temperature rise, dimensions, weight) are not in the product library: those rows stay at an em dash until the factory parameter sheet is supplied. An em dash means the value is unavailable — it is never rendered as zero.

Reference prices are for estimation only and do not constitute a formal offer.

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KYN28A-12/630-31.5 - Frequently Asked Questions

QWhat are the main applications of KYN28A-12/630-31.5?

KYN28A-12/630-31.5 (KYN28A series, High Voltage Switchgear) is widely used in power distribution systems, industrial control and infrastructure projects. Can be flexibly configured according to actual project requirements.

QWhat are the main technical specifications of KYN28A-12/630-31.5?

Key specifications: Capacity: , Frequency 50 Hz, Standard GB3906, IEC 62271-200.

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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