UPS Systems: Battery cubicle & Remote control unit

Fig. i - Operating principle

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Uninterruptible Power Supplies - Operating Principle

The basic operation of a UPS system is illustrated by the diagram (Fig.i);

• Mains available - Load supplied by inverter via rectifier/charger without direct connection to mains. Battery charging.
• Mains Down - Load supplied by inverter from battery power. Battery discharging.
• Major overload - Load supplied by mains power via static switch. Inverter off & automatic restart when overload ceases. Transfer without disturbance to load.
• Maintenance - Load supplied by mains power via maintenance by-pass.

UPS systems consist of five modular power sub-assemblies;

1. Rectifier / Charger
2. Battery
3. Three-phase inverter
4. Static switch
5. Mechanical maintenance by-pass

For further details / advise on the best UPS for your requirements please contact us
Product details;

Type	Details	Image
Galaxy PW UPS	For medium-power applications. Offers 8 power ratings (20 - 120 kVA) Galaxy PW offers the high performance you need at the lower power levels of today's downsized computer applications.
Galaxy 3000 UPS	15 kVA & 30 kVA Galaxy 3000 The standard 10-minute backup time can be extended to 8 hours by adding batteries in additional cabinets. Batteries are sized for a power factor of 0.8 to ensure longer backup times are available with 5-year and 10-year service lives.