GENERAL TRANSFORMER SPECIFICATION |
GENERAL SPECIFICATION | | | |
TRANSFORMER TYPE | | | Oil immersed, Hermetically sealed |
INSTALLATION | | | Outdoor |
APPLICABLE STANDARDS | | | IEC 60076-1 |
RATED POWER | (ONAN) | kVA | 250 |
HIGH VOLTAGE | | kV | 15 |
HIGH VOLTAGE TAPPINGS (NO LOAD) | % | kV | ±2x2.5 or ±5% |
LOW VOLTAGE ( NO LOAD) | | kV | 0.4 |
HIGH VOLTAGE INSULATION LEVEL | (Um/UAC/ULI) | kV | 24/50/125 |
LOW VOLTAGE INSULATION LEVEL | (Um/UAC/ULI) | kV | 1 , 1 / 3 / -- |
FREQUENCY | | HZ | 50 |
VECTOR GROUP | | | Dyn11 |
NUMBER OF PHASES | | | 3 |
MAX. AMBIENT TEMPERATURE | | C | 40 |
MAX. TEMPERATURE RISE ( WINDING / OIL) | | C | 65 / 60 |
MAX. ALTITUDE ABOVE SEA LEVELL | | m | 1000 |
PERMISABLE SHORT CIRCUIT DURATION | | s | 2 |
GUARANTEED VALUES | | | |
IMPEDENCE VOLTAGE (75C) | ±10% tolerance | % | 5.5 |
NO LOAD LOSSES | 1.5 -5% tolerance | W | 400 |
LOAD LOSSES (75C) | 3.5-8% tolerance | W | 4210 |
| | | |
STRUCTURAL SPECIFICATIONS | | | |
HIGH VOLTAGE WINDING CONDUCTOR MATERIALS | | | Cu |
LOW VOLTAGE WINDING CONDUCTOR MATERIALS | | | Cu |
OIL TYPE | | | Inhibited Mineral Transformer Oil |
TANK MATERIALS | | | Galvanized Steel Metal |
DIMENSION and WEIGHT | | | |
LENGTH /WIDTH / HEIGHT | | mm | L / W / H |
TOTAL WEIGHT | | kg | |
WEIGHT OF ACTIVE PART | | kg | |
WEIGHT OF OIL | | kg | |
| | | |
CONNECTION TERMINALS | | | |
HIGH VOLTAGE | | Proclean Bushings 30 Nf 250A x 3 | |
LOW VOLTAGE | | Proclean Bushings 1kV / A x 4 | |
| | | |
ACCESSORIES | | | |
HERMITICAL PROTECTION RELAY | | | |
PRESSURE RELIEF DEVICE | | | |
OFF-CIRCUIT TAP CHANGER | | | |
LIFTING LUGS | | | |
OIL FILLING & DRAIN VALVES | | | |