UN-75KVA
UN Series • 75kVA • 380V → Custom
UN-75KVA is a 75 kVA, 380V → Custom single phase transformer manufactured by Shandong Yaqing Electric Power Technology Co., Ltd. (QDTB) in Qingdao, China, approximate weight 635 kg. Available on FOB Qingdao terms; datasheet, routine test report and GA drawing issued with each unit.
Technical Specifications
| Model | UN-75KVA |
|---|---|
| Rated Capacity | 75kVA |
| Input Voltage | 380V |
| Output Voltage | Custom |
| Frequency | 50/60 Hz |
| Efficiency | ≥85% |
| Weight | 635 kg |
| Dimensions | 950×700×1225 mm |
- · 铭牌缺字段：hvVoltage, lvVoltage, impedance, 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
Images are for illustration purposes only
UN-75KVA
UN Series
TECHNICAL DRAWING
Model: UN-75KVA | Type: Oil-immersed transformer | Capacity: 75 kVA
FRONT ELEVATION
ELECTRICAL SCHEMATIC
EFFICIENCY vs LOAD
SIDE VIEW
TOP VIEW
TERMINAL BLOCK
CORE & WINDING
Technical specifications
LEGEND:
Product Description
UN-75KVA UN Series Single Phase Transformer, rated 75VA, primary 380V, customizable output voltage, 50/60Hz, ISO certified China manufacturer
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Certification
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.
Reference prices are for estimation only and do not constitute a formal offer.
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UN-75KVA - Frequently Asked Questions
QWhat are the main applications of UN-75KVA?
UN-75KVA (UN series, Single Phase 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 UN-75KVA?
Key specifications: Capacity: 75kVA, Input 380V, Output Custom, Frequency 50/60 Hz.
QCan UN-75KVA 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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