Dry Type Distribution Transformer 9 kVA For LHB Type Non AC EOG Coaches
RDSO / Spec No.
RDSO/PE/SPEC/AC/0158-2010 Rev.0
Application
Indian Railways (Rolling Stock) - LHB Non AC EOG Coaches
Product Specifications & Details
The Dry Type Distribution Transformer 9 kVA manufactured by General Auto Electric Corporation (GAEC) is designed for train lighting loads in LHB Type Non-AC End-on-Generation (EOG) coaches[cite: 14]. Approved by the Rail Coach Factory, Kapurthala, and compliant with RDSO Specification No. RDSO/PE/SPEC/AC/0158-2010 Rev.0, this air-cooled transformer operates reliably under rugged service conditions at speeds up to 200 kmph[cite: 14]. It features an under-slung IP-67 stainless steel enclosure with anti-vibration mounting pads and Class H insulation for long operational life[cite: 14].
Key System Features
- High-Speed Rugged Design: Built for tough rail conditions at speeds up to 200 kmph in diverse climates[cite: 14].
- Under-Slung Mounting: Anti-vibration mounting pads ensure structural durability beneath the coach frame[cite: 14].
- Premium Insulation: Class H winding wires/strips compliant with IS: 13730 pt. 13[cite: 14].
- Weatherproof Enclosure: Rust-free SS-304 housing providing IP-67 ingress protection[cite: 14].
- Standard Safety Compliance: Clearance and creepage distances adhere to IS: 13947-1993 (Pollution Degree 3)[cite: 14].
- Railway Approved: Certified by Rail Coach Factory (RCF), Kapurthala[cite: 14].
Technical Specifications Table
| Parameter | Specification Standard |
|---|---|
| Rating | 9 kVA |
| Nominal Input Voltage | 3 Phase, 3 wire, 750 V ±5% (line to line), 50Hz ± 3%, THD 10% |
| Nominal Output Voltage |
3 Phase, 4 wire, 415 V ±5% (line to line), 50Hz ± 3%, 6.5KVA 3 Phase, 4 wire, 190 V ±5% (line to line), 50Hz ± 3%, 2.5KVA |
| Nominal Output Current | 9.00 A for 6.5 KVA winding at 415 V | 7.60 A for 2.5 KVA winding at 190 V |
| Class of Insulation & Temp Rise | Class H | Temperature Rise: < 115°C |
| Efficiency & % Impedance | > 96% (half load to full load) | Impedance: 4% (max) |
| Vector Configuration & Noise Level | Star-Star-Star (Yyy) | Noise Level: < 60dB at 1.0 m distance |
| Insulation Level & Short Circuit | > 1000 MΩ | Complied As per IS 2026 |
| Withstand Voltage Capacity | High Voltage: 5 kV AC (RMS) for 1 Min | Induced Over Voltage: 830V at 100Hz for 1 Min |
| Total Weight & Ingress Protection | 205 kg | IP-67 Protection |
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