Overview
The 2.5 kVA inverter uses MOSFET and IGBT technology arranged in a double conversion topology to convert a nominal 110V DC input supply into either a 110V or 240V AC single phase 50 Hz output supply. This topology offers substantial efficiency and weight benefits compared to a conventional single stage design.
The first conversion stage uses high frequency switching to boost the input DC voltage to an intermediate high voltage bus. The second stage pulse-width-modulates this link voltage to produce a switched single-phase AC output voltage, which is then internally filtered to produce the final pure-sinusoid output waveform.
The converter operation can be readily monitored and adjusted using an isolated RS-232 interface.
The 2.5kVA Bulk Inverter is designed and manufactured for use in Indian Railways coaches.
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Technical Specifications
- Input Voltage: 90-140VDC +/-15% ripple
- Output Voltage: 110Vac/220Vac, 1 phase
- Frequency: 50Hz output
- Isolation: Yes
- Application: Traction
- Cooling: Naturally Cooled
- Environmental: Vibration rated & EMI
- Ambient: -5°C to 55°C
- Communications interface: USB Download
- Display: On-board LED status and external input, ouput and fault status
- Interface: Plug-in RS-232 module with Parameter Setting