Power

Flexible Inverter Satisfies Wide Range of Applications

16th March 2006
ES Admin
The Quasar Inverter from Gresham Power will find a wide variety of uses over and above supplying high quality AC power from a DC source.
The major application area for the Quasar inverter has generally been telecom and mobile phone infrastructure. However the Quasar is equally at home in vehicle or mobile applications where the 24VDC input versions may be used to provide power for vehicle based computing, measuring or monitoring systems as well as “domestic” equipment such as TV’s, microwave ovens etc.

In test laboratories the Quasar can be used as a highly stable and accurate test voltage supply as the output may be user configured to 110, 220, 230 and 240VAC at either 50 or 60Hz. For avionic or military test systems a 400Hz output version is also available. With it’s flexible DC input the Quasar may be used in both laboratory and mobile test environments.

Three Quasar models are available, rated at 250VA, 500Va and 1,000VA with nominal input voltages of either 48VDC or 24VDC. The output waveform is a true sine wave with less than 5% total harmonic distortion and the output is protected against short circuit and overload. The input is protected against reverse voltage connection and features automatic shutdown at low input voltage to protect supply batteries from damaging complete discharge. The Quasar has internal fan cooling, thermal protection and operates over the temperature range 0°C to +50°C. Load regulation is typically 1% for a 0 to 100% load change and reliability is calculated at 90,000 hours per MIL-HDBK-217E.

The Quasar inverters comply with EN60950 and EN55022-B and are designed to meet telecom psophometric noise requirements of ETS300-132-2 when used with the optional QPF1000 filter module. DC input connection is via stud terminals and the AC output is from screw connection strip or optional socket packs for IEC connectors or numerous international standard outlets. The Quasar has a steel enclosure to IP20 and rack-mounting kits are available. A remote on/off function is standard and an optional “monitor” card may be specified to provide indication of Output OK, Input OK, Battery Low, Over Current and Over Temperature.

Quasar inverters may be used in telecomms infrastructure, vehicle and mobile systems, security/power protection installations and as a low cost, high quality frequency converter for test systems or part of a no-break power/UPS system.

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