Railway 3-phase DC-AC inverters use microprocessor controlled high frequency PWM technology to generate 300VA sine wave output
Railway 3-phase DC-AC sine wave inverters with high frequency conversion for compact construction, low weight and high efficiency
The CTP 300R-F7 series railway DC-AC inverters with 3-phase pure sine output voltage are designed for railway applications. The 300VA units meet the stringent requirements of EN50155 for electronic equipment used on rolling stock.
The railway DC-AC inverters deliver a 3-phase output of 208Vrms line-to-line at 60 or 400Hz. A 115Vrms phase-to-neutral output can also be used. The units operate from wide EN50155 input ranges of 17-34Vdc (24Vdc nom.), 25-51V (36Vdc nom.), 33-67V (48Vdc nom.), 50-101V (72Vdc nom.), 67-135Vdc (96Vdc nom.) or 77-154V (110Vdc nom.). Custom I/O options are available on request. New design topology and the use of microprocessor controlled high frequency PWM technology, the low profile units are more compact than previous 300VA versions and measure just 254 x 73 x 350.5 mm (W x H x L).
Equipped with heavy filtering on the input and output, the inverters comply with EN50121-3-2. They meet EN61000-4-2 (ESD), EN61000-4-3 (RF Immunity), EN61000-4-4 (Fast Transients), EN61000-4-6 (Conducted Immunity) and EN45545. Protection features include 1500Vdc input-output isolation, reverse polarity protection, overload protection, thermal protection and current limiting. A specially designed 3-phase controller module also contributes to the reliable operation of the unit.
An industrial quality version of this design, the CTP 300-F7, is also available.
Key Specifications
- 3-Phase sinusoidal output voltage, 300VA;
- DC-input: 24Vdc, 36Vdc, 48Vdc, 110Vdc with wide EN50155 ranges;
- AC-output: 208Vrms (L-L)/3-phase continuous at 60 or 400Hz or
or phase-to-neutral voltage of 115Vrms; - Meets requirements for EN50155 for electronic equipment used on rolling stock
- EMI: EN50121-3-2;
- Meets requirements for EN61000-4-2 (ESD), EN61000-4-3 (RF Immunity), EN61000-4-4 (Fast Transients), EN45545;
- Cooled by conduction and natural convection;
- Operating temperature range: -25°C to +50°C for full spec.;
- Typical efficiency at full load: min. 80%;
- Heavy ruggedizing;
- Conformal coated internal boards – protection from moisture, contaminants;
- Dimensions: F7: 254 x 73 x 350.5 mm (10” x 2.875” x 13.8”)
W x H x L.
Generic Data sheet – CTP 300R-F7 Three-phase railway sine wave inverter
Generic Data sheet – CTP 300-F7 Three-phase industrial sine wave inverter
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