SFC Static Frequency Converters
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The SFC series frequency converters are designed to supply 3 phase AC critical loads with high stability frequency from a 50Hz Input source to 60Hz or vice versa. An option exists for a 400Hz output as well.
The frequency converter design is based upon the standard rectifier and inverter subassemblies and the logic as used in our SFC Series of backup systems. This compact dimensioned product range is ideally suited for industrial applications in military and civil aviation, shore to ship services, avionics workshops and where USA market products have to operate from 50Hz power supplies with high performance and reliability. As an option we can add variable voltage inputs and outputs.
Batteries can be added to this frequency converter to provide autonomy and power security for the users who need continuous power at times when there is the risk of input mains degradation or failure. A mimic status and alarm panel with either digital or analogue metering is provided on the front door of the frequency converter. A remote alarm signal interface facility is available as an optional feature.
The Basic Mechanical Construction
The basic mechanical construction is in vertical format with ingress protection IP20 with optional IP20, IP42 and IP54, there is a horizontal version available for mounting on a mobile trolley, trailer or on floor stands. Variable input and output voltage and frequency converters can be added as an option. These can auto select voltage and Frequency, or they can be manually changed.
Options: Applications RECTIFIER Nominal input voltage 70 to 230 VAC one-phase, Voltage tolerance +10% or -15% Phase in: Single or Three Phase Frequency: 45 to 65 Hz Current harmonic distortion: <1% linear load, <5% with non-linear load CF=3 INVERTER Rated output power: (kVA) 10, 15, 20, 30, 40, 50, 60, 80, 100, 120 Nominal output voltage : 230 VAC 1 Phase N+E 50 Hz Phase out: Single or Three Phase Dynamic stability: +/- 5% with recovery time to +/-2% within 40ms 40ms Voltage distortion with linear load: <3% Voltage distortion with non--‐linear load :<4% Frequency : 50, 60 or 400Hz Overload: In. x 1.1 for 60minutes, In. x 1.5 for 50 seconds In. x 1.25 for 10 minutes, In. x 2.0 for 1 second METERING, STATUS, SIGNALLING AND ALARMS. Digital metering by LCD panel Menu and keypad for diagnostics and data logging Remote signalling Voltage--‐free contacts Communication via RS232 or RS485 DIMENSIONS AND WEIGHT,IP20 Dimensions, (w x d x h) (mm) 10, 15, 20kVA 555 x 665 x 830 30, 40, 50kVA 750 x 705 x1,250 60, 80kVA 800 x 705 x 1,575 100, 120, 150kVA 1,000 x 950 x 2,000 Weight (kg) Approx. 10kVA 132 15kVA 150 20kVA 211 30kVA 235 40kVA 345 50kVA 414 60kVA 454 80kVA 495 100kVA 564 120kVA 730 150kVA 828 Other Power on Request Weights and Dimensions are based on three phase in and out. Single phase and 400Hz sizes may vary OPERATIONAL ENVIRONMENT Noise level : <60 dBA at 1 m Operating ambient temperature 0 °C to 40 °C, Operation in an ambient temperature of 50°,the converter output is reduced by 25% Relative humidity : <95% non-condensing Ingress protection degree IP20 as standard, options of, IP31, IP42 and IP54 available Colour : Light grey (RAL 1013) Finish, light textured STANDARDS COMPLIANCE EN 50091 -1EN50091-02 class A Classification as perIEC62040-3 (Voltage Frequency Independent) VFI-SS-111
