One phase cast resin transformer


windings and core cast in epoxy resin  •  chambers for fuses formed in the casting  •  rated power 0.5 kVA  •  system voltage up to 7.2 kV

Single-phase dry-type transformers TP1HSN are modern products with lower and upper voltage windings cast in epoxy resin. Windings are perfectly protected against moisture and heat dissipation is excellent. The technology of epoxy resin casting ensures high quality of electrical insulation.

Medium voltage fuses are mounted in chambers formed in the casting. In addition, fuses are covered with insulating guards made of silicone rubber.

UNICORE cores guarantee very low values of excitation current and excitation loss.

Transformers TP1HSN are used mainly in auxiliary circuits.

Technical data:

highest permissible system voltage / power frequency withstand voltage / impulse withstand voltage7.2 / 20 /40 kV
number of phases, frequency1 ~ 50 Hz
rated power500 VA
rated voltages (upon agreement)e.g. 6600 / 230V
tap connections (lower voltage winding)option – e.g. ±5 %
impedance voltage4.5 %
excitation loss10 W
power loss at rated current20 W
dimensions (L x W x H)280 x 145 x 230 mm
weightca 24 kg
ambient temperature-25ºC ÷ 65ºC
according to standardEN 60076-11:2006
dane techniczne
technical data
ISO Certificate