TOd — oil-immersed distribution transformers 40–2500 kVA, up to 37 kV
Three-phase oil-immersed TOd distribution transformers are intended for transmitting electricity in industrial, urban and rural medium-voltage distribution networks.
- Power
- 40–2500 kVA
- HV voltage
- 1–37 kV (typical 6.3; 10.5; 15.75; 21; 31.5 kV)
- LV voltage
- 0.4 kV (possibly 6.3 kV)
- Voltage regulation
- off-load tap changer ±5 %
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Three-phase oil-immersed TOd distribution transformers are intended for transmitting electricity in industrial, urban and rural medium-voltage distribution networks. The range is from 40 to 2500 kVA for a primary voltage from 1 to 37 kV; standard HV values are 6.3, 10.5, 15.75, 21 kV, and also 31.5 kV, and the secondary voltage is usually 0.4 kV. MV/MV transformers are also available — for example, TOd 2500/15 for 15.75/6.3 kV with a YNd11 connection. Design. Three-limb core of cold-rolled electrical steel with an inorganic insulating coating. Windings of electrolytic copper: round enamelled wire or profiled wire in paper insulation. The HV winding has taps for voltage regulation within ±5 %; the switch is installed in the tank, the manual drive is brought out to the cover, switching is performed only after de-energisation, and each position is secured by an interlock. Tank — welded steel with stiffening ribs; heat dissipation through sheet radiators or corrugated walls. The trolley has rollers that can be repositioned for longitudinal and transverse movement. Parameters per the standard table: TOd 400/6 — 400 kVA, 6.3/0.4 kV, uk 4.5 %, Dyn5, no-load losses 430 W, short-circuit losses 4600 W, mass 1500 kg; TOd 1000/15 — 1000 kVA, 15.75/0.4 kV, uk 6 %, no-load losses 770 W and short-circuit losses 10 500 W; TOd 2500/6 — 2500 kVA, uk 6 %, mass 3900 kg. No-load and short-circuit losses comply with Commission Regulation (EU) No 548/2014; tolerances: no-load current +30 %, short-circuit voltage ±10 %. Versions: sealed and with conservator, with HV bushings for cable plug-in connectors, surge arresters and anti-vibration pads. Other voltages, short-circuit voltage and loss levels, as well as special versions for other climatic conditions, are available on request. Normal conditions: temperate climate, −25…+40 °C, altitude up to 1000 m. Applications: packaged and pole-mounted transformer substations of network companies, industrial enterprises and renewable energy facilities. Standards: PN-EN 60076-1, PN-EN 60076-2, PN-E 06041.
Technical specifications
| Power | 40–2500 kVA |
|---|---|
| HV voltage | 1–37 kV (typical 6.3; 10.5; 15.75; 21; 31.5 kV) |
| LV voltage | 0.4 kV (possibly 6.3 kV) |
| Voltage regulation | off-load tap changer ±5 % |
| Connection groups | Dyn5, Yzn5, YNd11 |
| Short-circuit impedance | 4.5–6 % |
| Design | sealed or with conservator |
| Temperature | −25…+40 °C, up to 1000 m |
| Standards | PN-EN 60076-1/-2, PN-E 06041, Regulation (EU) 548/2014 |
Replacement for
ТМГ-25/10…ТМГ-160/10, ТМ-63/10, ТМ-100/10; ТМГ-250/10, ТМГ-400/10, ТМГ-630/10, ТМГ-1000/10, ТМГ-1600/10, ТМГ-2500/10; ТМ-…/10, ТМЗ-…/10; ТМ-…/35
selected by purpose and main parameters, please confirm with our manager
Request a price and lead time
TOd — oil-immersed distribution transformers 40–2500 kVA, up to 37 kV. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
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