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UN Series Single Phase Transformers

6 Models available

UN Single Phase Transformers

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UN Series - Single Phase Transformers

UN transformers deliver 25-200 kVA with fully custom secondary voltages for heavy industrial and utility applications.

Model Number Breakdown

Key Features

  • Large 25-200 kVA capacity for heavy industrial loads
  • Fully custom secondary voltages and taps
  • Single-phase and three-phase configurations
  • Robust for continuous industrial duty

Applications

  • Industrial power systems
  • Commercial buildings
  • Infrastructure projects

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
LEGEND:
Iron core
HV winding/bushing
LV winding/bushing
Dimension line

Specifications Range

All specifications and dimensions can be customized upon request

Model Selector

Key parametersModel Range
Capacity25–200 VA
Input voltage380V
Output voltageCustom
Frequency (Hz)50/60
Efficiency≥85%, ≥90%
Allowed temperature rise≤65 K
Short-circuit impedance≤8%
Insulation classClass B (130°C)
Select 2-3 models to compare
CompareModelSeriesCapacity (kVA)Input voltageOutput voltageFrequency (Hz)WeightDimensions
UN-25KVAUN25kVA380VCustom50/60290 kg78×84×90 mm
UN-50KVAUN50kVA380VCustom50/60470 kg78×94×90 mm
UN-75KVAUN75kVA380VCustom50/60635 kg950×700×1225 mm
UN-100KVAUN100kVA380VCustom50/60800 kg112×94×115 mm
UN-150KVAUN150kVA380VCustom50/601060 kg112×102×115 mm
UN-200KVAUN200kVA380VCustom50/601300 kg112×110×115 mm

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EXW (FOB Qingdao)
$2
Range $2 ~ $28%)
Price Breakdown
Base price (interpolation)$2
× Product factor×1.0000
× Country factor×1.0000
× Copper-linked factor×1.0000
+ Options / accessories$0
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Complete equipment — no winding copper linkage

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