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UDG Series Single Phase Transformers

10 Models available

UDG Single Phase Transformers

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UDG Series - Single Phase Transformers

UDG 1:1 isolation transformers isolate sensitive equipment from mains noise. 1-10 kVA, 220 V to 220 V, for machinery and control systems.

Model Number Breakdown

Key Features

  • 1:1 isolation for imported equipment voltage matching
  • 1-10 kVA range for machinery and control systems
  • Suppresses harmonics and common-mode noise
  • Compact dry-type design

Applications

  • Industrial power systems
  • Commercial buildings
  • Infrastructure projects

TECHNICAL DRAWING

Model: UDG-6KVA | Type: Oil-immersed transformer | Capacity: 6000 kVA

FRONT ELEVATION

Oil level1U1V2U2NTAPN.P.330mm390mm

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 level210mm

TOP VIEW

1U1V2U2N210mm

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
Capacity1000–10000 VA
Input voltage220V
Output voltage220V
Frequency (Hz)50/60
Efficiency≥93%
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
UDG-1KVAUDG1000VA220V220V50/60130 kg165±2
UDG-2KVAUDG2000VA220V220V50/60130 kg180±2
UDG-3KVAUDG3000VA220V220V50/60130 kg180±2
UDG-4KVAUDG4000VA220V220V50/60130 kg200±2
UDG-5KVAUDG5000VA220V220V50/60130 kg215±2
UDG-6KVAUDG6000VA220V220V50/60130 kg230±2
UDG-7KVAUDG7000VA220V220V50/60130 kg230±2
UDG-8KVAUDG8000VA220V220V50/60130 kg230±2
UDG-9KVAUDG9000VA220V220V50/60130 kg250±2
UDG-10KVAUDG10000VA220V220V50/60130 kg250±2

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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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