QDTB® Transformer

KYN61-40.5/1250-31.5

KYN61 Series •

KYN61-40.5/1250-31.5 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 1100 kg. Available on FOB Qingdao terms; datasheet, routine test report and GA drawing issued with each unit.

Technical Specifications

KYN61-40.5/1250-31.5 technical specifications
ModelKYN61-40.5/1250-31.5
Rated Capacity
HV Voltage40.5 kV
Frequency50 Hz
Weight1100 kg
Dimensions1000×1600×2400 mm
Applied StandardGB3906, IEC 62271-200

Product Image & Parameters

KYN61 - QDTB

Images are for illustration purposes only

KYN61-40.5/1250-31.5

KYN61 Series

HV Voltage
40.5kV
Frequency
50Hz
Applied standard
GB3906, IEC 62271-200
HV side current
1250A
Dimensions
1000×1600×2400 mm
Weight
1100kg
Energy SavingLow Loss

Product Drawing

High Voltage Switchgear - KYN61-40.5/1250-31.5

APPEARANCE — METAL-CLAD CABINET
HV SWITCHGEAR — FRONT VIEWpressure reliefrelay / meter panelbreaker view windowcable compartmentKYN61-40.5/1250-31.5
STRUCTURE — THREE COMPARTMENTS
BUSBAR ROOMBREAKER TRUCKwithdrawableCABLE ROOMKYN61-40.5/1250-31.5
MAIN CIRCUIT — SINGLE-LINE
HV SWITCHGEAR — MAIN CIRCUITBUSCTgroundPTCABLE OUTKYN61-40.5/1250-31.5
SWITCHGEAR LINE-UP
SWITCHGEAR LINE-UP (INCOMING + FEEDERS)INF1F2F3common busbarKYN61-40.5/1250-31.5

SPECIFICATIONS

1. Model (Product code):KYN61-40.5/1250-31.5
2. Series:KYN61
3. Rated voltage:40.5 kV
4. Rated Current:1250 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:1100

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

Product Description

KYN61-40.5/1250-31.5 40.5kV indoor metal-clad switchgear. With VBI/VCB vacuum breaker. For power generation, mining, petrochemical plants.

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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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KYN61-40.5/1250-31.5 - Frequently Asked Questions

QWhat are the main applications of KYN61-40.5/1250-31.5?

KYN61-40.5/1250-31.5 (KYN61 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 KYN61-40.5/1250-31.5?

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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