15 kVA Transformer
15 kVA, 415/190 V, 3 Phase Dry Type Distribution Transformer
Specification No. RDSO/PE /SPEC/TL/0158-2010 (Rev.0)
Description :
- 15 kVA, 3-phase, dry-type, natural/air-cooled distribution transformer.
- Designed for LHB-type non-AC EOG railway coaches.
- Steps down 750 V AC from power cars to 415 V/190 V AC.
- Provides reliable power for train lighting (TL) loads including lights and fans.
- Manufactured as per RDSO specification RDSO/PE/SPEC/TL/0158-2010 (Rev.0) for safety, reliability, and railway approval.
Technical Specifications :
| Input (AC) | |
| Nominal Voltage | 3 Phase, 4 wire, 750 V ± 5% (line to line), 50Hz +3%, THD <10% |
| Nominal Input Line Current | 11.54 A at 750 V |
| Output (AC) | |
| Power | 15 KVA |
| Output Voltage | 3 Phase, 4 wire, 415 V ± 5% (line to line), 50Hz ±3%, 10.5 KVA 3 Phase, 4 wire, 190 V ± 5% (line to line), 50Hz ±3%, 4.5 KVA |
| Nominal Output Current | 14.60 A for 10.5 KVA winding at 415 V 13.67 A for 4.5 KVA winding at 190 V |
| Efficiency | >96% from half load to full load |
| Class of Insulation | H |
| Noise Level | <60 db at 1.0 m distance |
| Protections | |
| Vector Configuration | Star – Star – Star (Yyy) |
| IP Protection | IP-67 |
| Winding Wire | Super enameled copper as per IS:13730 Pt.13, Pt.29 |
| Max. Temp Rise | 115°C |
| Total Weight | 250 Kg (Max.) |
| Construction | |
| Enclosure | 2.0 mm thick SS 304 Enclosure / Housing |
| Top Cover | 5.0 mm thick SS 304 |
| Overall Dimensions (L × D × H) | 970 × 560 × 650 mm |
| Mounting | 360 × 215 mm / 500 × 215 mm |
| Weight | Less than 250 Kg |
| Cooling | Natural air cooled |