One phase cast resin transformer


Single-phase dry-type transformers TP1HSN are modern products with upper voltage windings cast in epoxy resin in a monolithic form. Windings are perfectly protected against moisture and heat dissipation is excellent.

TP1HSN series transformers are mainly used as auxiliary transformers in indoor applications.

The technologies of epoxy resin casting ensure high quality of electrical insulation of the device. The transformers are manufactured basing on UNICORE cores that guarantee very low levels of no-load losses and excitation currents.

Upper voltage winding terminals are adapted for medium voltage fuse holders up to 53 mm in diameter.

Technical data:

highest permissible system voltage, test voltagesup to 24 / 50 / 125 kV
number of phases, frequency1 ~ 50 Hz
rated power16 kVA
rated voltagesto be agreed – for example 22 000 / 230 V
tap connections (lower voltage winding) (e.g. ±15%)YES (option)
impedance voltage4.1 %
no-load losses< 75 W
power losses at rated current260 W
dimensions length x width x heightca 490 x 556 x 377 mm
weightca 180 kg
ambient temperature-25ºC ÷ 65ºC
compliance with standardsEN 60076-11:2006