TECNA 31823 single-phase resistance welding transformer — 100 kVA at 50% duty, 380 V / 50 Hz primary (other voltages on request). Water-cooled with epoxy-coated windings, 4 secondary voltage taps (7.3–10.0 V).
The TECNA 31823 is a single-phase resistance welding transformer rated at 100 kVA (50% duty cycle). It uses a fully water-cooled core with epoxy casting-resin coated windings, and is supplied with a standard 380 V / 50 Hz primary — other primary voltages and frequencies, including US 480 V / 60 Hz, are available on request. Manufactured to ISO 5826.
Part of the TECNA single-phase transformer range; related models in the same family include 32863.
| Weight | 298 lbs |
|---|---|
| Product Type | |
| Phase | Single-Phase |
| Nominal Power 50% (kVA) | 100 |
| Primary Supply U1 / Frequency | 380 V / 50 Hz (other voltages/frequencies on request) |
| Pri Thermal Curr I1 100% (A) | 186 |
| No-Load Sec Voltage V20 (V) | 7.3 / 8.1 / 9.0 / 10.0 |
| Sec Thermal Curr I2 100% (kA) | 3.5+3.5 |
| Cooling Water Flow | 1.06 gpm (4 l/min) |
| Secondary Terminal Stud (D) | M10 |
| Cable Gland (PG) | PG36 |
| Body Length L1 (max) | 21.06 in (535 mm) |
| Mounting Length L2 | 13.39 in (340 mm) |
| Housing Finish | Galvanized |
| Cooling | Water-Cooled |
| Standard | ISO 5826 |
