QDTB® Transformer

UN-100KVA

UN Series • 100kVA • 380V → Custom

UN-100KVA is a 100 kVA, 380V → Custom single phase transformer manufactured by Shandong Yaqing Electric Power Technology Co., Ltd. (QDTB) in Qingdao, China, approximate weight 800 kg. Available on FOB Qingdao terms; datasheet, routine test report and GA drawing issued with each unit.

Technical Specifications

UN-100KVA technical specifications
ModelUN-100KVA
Rated Capacity100kVA
Input Voltage380V
Output VoltageCustom
Frequency50/60 Hz
Efficiency≥85%
Weight800 kg
Dimensions112×94×115 mm
Load-case data unavailable
  • · 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

UN - QDTB

Images are for illustration purposes only

UN-100KVA

UN Series

Capacity
100kVA
Input voltage
380V
Output voltage
Custom
Frequency
50/60Hz
Efficiency
≥85%
Dimensions
112×94×115 mm
Weight
800kg
Control TypeLow NoiseISO 9001

TECHNICAL DRAWING

Model: UN-100KVA | Type: Oil-immersed transformer | Capacity: 100 kVA

FRONT ELEVATION

Oil level1U1V2U2NTAPN.P.135mm180mm

ELECTRICAL SCHEMATIC

HV WINDING (Delta)1U1V1WLV WINDING (Star)2U2V2W2NDyn11

EFFICIENCY vs LOAD

90%95%98%99%0%25%50%75%100%≈99%load %efficiency %

SIDE VIEW

Oil level105mm

TOP VIEW

1U1V2U2N105mm

TERMINAL BLOCK

HV TERMINAL BLOCK1U1V1W1NLV TERMINAL BLOCK2U2V2W2N2PETerminal block configurationTin-plated copper busbar

CORE & WINDING

OIL / TANKHV winding/bushingINSULATIONLV winding/bushingIron coreconcentric cross-section

Technical specifications

1. Model:UN-100KVA
2. Type:Oil-immersed transformer
3. Capacity:100 kVA
4. Frequency:50 Hz
5. HV voltage:10 kV
6. LV voltage:0.4 kV
7. HV current:-
8. LV current:-
9. Vector group:Dyn11
10. Impedance:-
11. Insulation level:A
12. Temperature rise:65K
13. No-load loss:-
14. Load loss:-
15. No-load current:-
16. Cooling method:ONAN
17. Tap changer:±2×2.5%
18. Standard:GB1094
19. Dimensions:112×94×115 mm
20. Weight:800kg
LEGEND:
Iron core
HV winding/bushing
LV winding/bushing
Dimension line

Product Description

UN-100KVA UN Series Single Phase Transformer, rated 100VA, primary 380V, customizable output voltage, 50/60Hz, ISO certified China manufacturer

Related Keywords

UN-100KVAUNsingle phase transformer100VA

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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
Impedance voltage uₖ: not specified
Result
Rated current Iₙ—
Short-circuit current I_sc—
Short-circuit current I_sc—
Short-circuit power S_sc—
I_sc is calculated on the transformer impedance basis alone (system impedance neglected) — the same basis used in IEC 60076-5 short-circuit calculations.

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.

Derived losses (from the selected efficiency grade + capacity)
No-load loss P0 (kW)—
Load loss Pk (kW)—

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-100KVA - Frequently Asked Questions

QWhat are the main applications of UN-100KVA?

UN-100KVA (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-100KVA?

Key specifications: Capacity: 100kVA, Input 380V, Output Custom, Frequency 50/60 Hz.

QCan UN-100KVA 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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