MaxPower Corp Gamatronic Power+ M50-RM - Manual (Page 22)

Gamatronic Electronic Industries Ltd.
POWER+ RM 50 K VA, N.Am. Std. – User Guide, Release 1.9 6
1.4 UPS module (10 kVA / 8 kW)
The UPS module is the core of the POWER+, which consists of from one to ten identical modules
in parallel depending on capacity requirements.
Each module includes a 3-phase charger with PFC
1
and a 3-phase PWM inverter connected to
batteries by a classic DC link. Each module is plug-in and weighs a mere 22 lb. (10 Kg),
approximately.
1.5 Static Switch (ST/SW) module
The centralized hybrid Static Switch enables an automatic transfer of the load from the output of
the inverters to an alternate source whenever the inverter can no longer supply power to the load.
The static switch can transfer high currents at high speed.
1
PFC is a feature included that reduces the amount of generated reactive power. Reactive power operates
at right angles to true power and energizes the magnetic field. Reactive power has no real value for an
electronic device, but electric companies charge for both true and reactive power resulting in unnecessary
charges.
In power factor correction, the power factor (represented as "k") is the ratio of true power (kWatts) divided
by reactive power (kVA). The power factor value is between 0.0 and 1.00. If the power factor is above 0.8,
the device is using power efficiently. A standard power supply has a power factor of 0.70-0.75, and a power
supply with PFC has a power factor of 0.95-0.99.