System Description; General System Description; Feature : Unique "Hot Swappable" Modules; Feature : Advanced-Booster Technology - ABB CONCEPTPOWER CLASSIC DPA-50 User Manual

SYSTEM DESCRIPTION

1.3
The product described in this manual is a transformerless Uninterruptible Power System (UPS). It is a true online,
continuous duty, double conversion, solid state, three-phase system, providing conditioned and uninterruptible AC
power to protect the customer's load from all nine power failures.

1.3.1 GENERAL SYSTEM DESCRIPTION

The UPS's are used to protect sensitive equipment and prevent loss of valuable electronic information, minimise
equipment downtime, and minimise the adverse effect on production equipment due to unexpected power
problems.
The UPS system continually monitors incoming electrical power and removes the surges, spikes, sags, and other
irregularities that are inherent in commercial utility power. Working with a building's electrical system, the UPS
system supplies clean, consistent power that sensitive electronic equipment requires for reliable operation. During
brownouts, blackouts, and other power interruptions, batteries provide emergency power to safeguard operation.
The UPS system is housed in single freestanding cabinets. The cabinets line up and match in style and colour,
and have safety shields behind the doors for hazardous voltage protection.
1.3.1.1

Feature : Unique "Hot Swappable" Modules

The unique Hot Swappable feature of the Modules indicates the ability to insert and extract the electronic/power
modules from a larger assembly while it is powered (hot). The hot swappable design allows live powered modules
to be attached to and removed from a powered set without causing disturbance to the operation of the load and
without need to go to bypass.
1.3.1.2

Feature : Advanced-Booster Technology

Traditional input THD filters are no longer needed with this UPS product. The build-in advanced booster
technology of UPS modules provides perfect sinusoidal input power quality at 0.99 input power factor with
harmonic content less than 3-4% THD(i). This leads to more reliable total system operation and savings in
generator and transformer sizing as losses in the windings are minimised.
Due to the active front booster, regulating each individual phase, the UPS is comparable to a clean resistor load
(unity) from the mains perspective. Thus, the high input power factor provides minimised cabling and fusing costs
due to no reactive power consumption. The low harmonic currents are due to high input power factor and provide
the benefits:

No additional losses in wires and cables

No extra heating of transformers and generators with shortened service life

No over sizing of generators

No false circuit breaker tripping and malfunction

No erratic operation of computers, telecommunication, monitors, electronic test equipment etc.

No Resonance with power factor correction capacitors
04-3008_S1_ABB_OPMCPDPA-S2_GB_121202
Printed in Switzerland – Modifications reserved
Section-1
Page 7/22 ABB