SBH15-M-250/20
SBH15-M Series • 250kVA • 20/0.4 kV
SBH15-M-250/20 is a 250 kVA, 20/0.4 kV amorphou alloy transformers manufactured by Shandong Yaqing Electric Power Technology Co., Ltd. (QDTB) in Qingdao, China, designed and tested in accordance with GB1094, JB/T10318, vector group Dyn11, short-circuit impedance 4%, approximate weight 1020 kg. Available on FOB Qingdao terms; datasheet, routine test report and GA drawing issued with each unit.
Technical Specifications
| Model | SBH15-M-250/20 |
|---|---|
| Rated Capacity | 250kVA |
| HV Voltage | 20 kV |
| LV Voltage | 0.4 kV |
| Frequency | 50 Hz |
| Vector Group | Dyn11 |
| Short-circuit Impedance | 4% |
| Cooling | ONAN |
| Insulation | A(105°C) |
| Temperature Rise | 65 K |
| No-load Loss | 87 W |
| Load Loss | 3200 W |
| Efficiency | 4 |
| Weight | 1020 kg |
| Dimensions | 1190×1030×1300 mm |
| Applied Standard | GB1094, JB/T10318 |
Product Image & Parameters
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SBH15-M-250/20
SBH15-M Series
TECHNICAL DRAWING
Model: SBH15-M-250/20 | Type: Amorphous alloy transformer | Capacity: 250 kVA
FRONT ELEVATION
ELECTRICAL SCHEMATIC
EFFICIENCY vs LOAD
SIDE VIEW
TOP VIEW
TERMINAL BLOCK
CORE & WINDING
Technical specifications
LEGEND:
Product Description
250kVA amorphous alloy oil-immersed transformer, 20kV/0.4kV, 20kV class
SBH15-M 250kVA 20kV-class amorphous alloy distribution transformer. Ultra-low no-load loss for 20kV distribution network. Energy-saving, environmentally friendly.
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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
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.
Read-only: no price factor, not part of the sum — the loss-grade cost is already carried by the efficiency (subtype) base price, so charging here would double-bill. Values come from the product library type-test data, interpolated between published capacities; grades the library does not cover show an em dash, never zero.
油浸非晶（SBH15-M / SH16）
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SBH15-M-250/20 - Frequently Asked Questions
QWhat are the main applications of SBH15-M-250/20?
SBH15-M-250/20 (SBH15-M series, Amorphous Alloy Transformers) is widely used in industrial power distribution, commercial buildings and utility power systems. Can be flexibly configured according to actual project requirements.
QWhat are the main technical specifications of SBH15-M-250/20?
Key specifications: Capacity: 250kVA, HV 20 kV, LV 0.4 kV, Frequency 50 Hz, Impedance 4%, Connection Dyn11, Cooling ONAN, Standard GB1094, JB/T10318.
QCan SBH15-M-250/20 be custom ordered?
Yes. QDTB® provides comprehensive OEM/ODM customization services. Parameters such as capacity, voltage ratio, cooling method, connection group and protection class can all be adjusted. Over 25 years of manufacturing experience ensures consistent quality.
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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