Line Interactive Units

Online Units

Single phase products

Line Interactive

This is one of the least expensive options for power protection. The normal mains voltage is allowed to pass through the UPS with filtering to ensure noise, spikes and surges are not passed through to the load. In the event that the mains voltage or frequency rises (surge) or falls (sag/brownout) outside of predetermined limits the unit will control the voltage by an Automatic voltage regulator circuit. If this is not possible, or the mains fails totally (blackout) then the unit will transfer the output to it’s battery powered inverter. These inverters may produce a pseudo sine wave (small units only) or a proper sine wave output which is very stable in both voltage and frequency. The unit will continue to support the load until either the mains returns or the battery runs out. This is known as the autonomy time.

On Line Double conversion

In this more complex type of unit the inverter runs continually. Supplying the load with a very clean and stable waveform. The incoming mains is converted to a set DC voltage, part of which is used to ensure the standby batteries are fully charged and ready for use. Most of the DC current is used to power the inverter which converts the DC voltage back into a normal 50Hz (or 60Hz) 220/230/240 Volt clean and extremely stable output. These units tend to be the larger single phase units along with most if not all of the three phase units we deal with.

MISSION STATEMENT

To provide the best in service, with personal attention to detail and continuity of attendance, along with system configurations that give the customer the highest confidence in their power supply protection system.

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