Dry-Type Transformers

SC(B) Epoxy-Resin Dry-Type Transformer

Vacuum-cast epoxy dry transformer, 30–2500 kVA: flame-retardant and self-extinguishing, +40 % output under AF forced-air cooling, long-term service at Class F 155 °C or Class H 180 °C.

Factory-direct supply Worldwide delivery & export documentation 12-month warranty · extended options

Excellent electrical performance with low partial discharge
Strong lightning-impulse and short-circuit withstand
High overload capability — AF forced-air cooling lifts output by 40 %
Flame-retardant, self-extinguishing, maintenance-free, moisture- and damp-heat-proof for harsh environments
High thermal class: continuous safe duty at 155 °C (Class F) or 180 °C (Class H)

At a glance

Built to perform, year after year

10·10.5 kV / 0.4 kV

HV / LV voltage

±2×2.5 %·±5 % / Dyn11·Yyn0

Tap range / vector group

4.0 / 6.0–8.0 %

Short-circuit impedance

A closer look

Engineered around safety, efficiency and uptime

Overview

SC(B) dry-type transformers have their coils integrally vacuum-cast in epoxy resin. They serve power stations and plants, industry, urban high-rises and user distribution substations across supply and distribution systems.

Product features

Excellent electrical performance with low partial discharge
Strong lightning-impulse and short-circuit withstand
High overload capability — AF forced-air cooling lifts output by 40 %
Flame-retardant, self-extinguishing, maintenance-free, moisture- and damp-heat-proof for harsh environments
High thermal class: continuous safe duty at 155 °C (Class F) or 180 °C (Class H)

Designation

Three-phase · resin-moulded · foil-wound LV coil · loss-level code · rated capacity (kVA) · system voltage (kV)

Technical specifications

Full specifications

Common data

HV / LV voltage

10·10.5 kV / 0.4 kV

Tap range / vector group

±2×2.5 %·±5 % / Dyn11·Yyn0

Short-circuit impedance

4.0 / 6.0–8.0 %

Loss data — typical ratings (F / H class load loss, W)

30 kVA — no-load / load

130·105 / 640·685

100 kVA — no-load / load

320·270 / 1665·1780

315 kVA — no-load / load

665·570 / 3590·3850

630 kVA — no-load / load

885·750 / 5365·5760

1250 kVA — no-load / load

1420·1205 / 8720·9335

2500 kVA — no-load / load

2450·2080 / 15445·16605

Note

斜线前 F 级 / 后 H 级;全系 30–2500kVA

Specifications are representative and may vary by configuration and region. Final figures are confirmed on the project datasheet.

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