Single-phase cast resin transformer
windings and core cast in epoxy resin • various fuse holders can be installed • rated power 4 kVA • system voltage up to 24 kV
Single-phase dry TP1HSN type transformers with rated power of 4 kVA are modern devices made up in the form of monolithic epoxy-resin casts. The technologies we use ensure high quality of electrical insulation of the device.
TP1HSN transformers are built on the base of the UNICORE core and are characterized by very low excitation loss. They are primarily used as auxiliary transformers.
Fuse holders can be installed on the terminals of upper voltage.
Technical data:
| highest permissible system voltage / power freq. withstand voltage / impulse withstand voltage | 24 / 50 /125 kV |
| number of phases, frequency | 1 ~ 50 Hz |
| rated power | 4 kVA |
| voltage ratio (upon agreement) | e.g. 22 000 / 230V |
| tap connections (lower voltage windings) | option – e.g. ±5 % |
| impedance voltage | ca 4.5 % |
| excitation loss | < 35 W |
| power loss at rated current | 145 W |
| cooling | AN |
| dimensions (L x W x H) | 450 x 240 x 322 mm |
| weight | ca 77 kg |
| ambient temperature | -5ºC ÷ 40ºC |
| according to the standard | PN-EN IEC 60076-11:2018 |
Additional technical data (according to the standard for inductive voltage transformers):
| voltage factor | 1.2 |
| thermal power limit | 5 kVA |
| according to the standard | PN-EN 61869-3:2011 |
