MaxPower Corp Gamatronic Power+ M100 - Manuel (Page 12)

Gamatronic Electronic Industries Ltd.
4 POWER+ 3x208 V, User Guide, Release 2.1
System Controller
The POWER+ system controller has three purposes:
• to allow the user to manage and control the UPS as well as monitor the
parameters of all sections of the POWER+ via the control panel
• to collect and summarize data from all sections of the UPS
• communication with external computers for data transfer and operation
The POWER+ can work without the system controller but with reduced functionality.
UPS Module (10 kVA / 8 kW)
1
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 2 and a 3-phase PWM inverter
connected to batteries by a classic dc link. Each module is plug-in and weighs a
mere 20 lbs (9 kg).
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.
Battery
The POWER+ battery bank is used as a backup in the event that the utility ac input
fails.
For systems from 10 kVA through 20 kVA, the batteries may be housed internally (on
battery trays); however, for systems from 30 kVA through 100 kVA, or for sites where
a longer backup duration is required, the batteries are housed in an external cabinet
next to the POWER+ cabinet.
For POWER+ units equipped with internal batteries (battery trays), do not use
excessive force when sliding the battery tray into place. The battery tray must be slid
into place gently to avoid damaging the electrical connection on its rear panel.
Batteries are charged by the rectifier which supplies both the inverter and the battery
charger.
1 The kVA and kW per module given here is for 3-3 configuration.
2 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 apparent 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.