Single-phase cast resin transformer
windings cast in epoxy resin • chambers for fuses formed in the casting • two versions: with core in horizontal (A) and vertical (B) arrangement • rated power 1.5 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 levels of excitation currents and excitation loss.
Transformers TP1HSN-1.5/7.2 are manufactured in two versions: with core in horizontal arrangement and with core in vertical arrangement.
Technical data:
| highest permissible system voltage / power frequency withstand voltage / impulse withstand voltage | 7.2 / 20 /40 kV |
| number of phases, frequency | 1 ~ 50 Hz |
| rated power | 1.5 kVA |
| rated voltages (upon agreement) | e.g. 6600 / 230V |
| tap connections (lower voltage winding) | option – e.g. ±5 % |
| impedance voltage | 4.5 % |
| excitation loss | 20 W |
| power loss at rated current | 60 W |
| cooling | AN |
| dimensions (L x W x H) – version with core in horizontal arrangement | ca 294 x 243 x 217 mm |
| dimensions (L x W x H) – version with core in vertical arrangement | ca 290 x 177 x 286 mm |
| weight | ca 35 kg |
| ambient temperature | -25ºC ÷ 65ºC |
| according to standard | PN-EN IEC 60076-11:2018 |
