PILLER UNIBLOCK™ UBTD+ is a rotary diesel UPS, in which the motor generator, flywheel and diesel engine are mounted on a single base. Designed for critical infrastructure: data centers, industry and facilities that require a single integrated UPS and generator solution.
Features:
Single module power 500–2700 kW, parallel up to 40 MW
UPS and diesel engine in one device on a common base
Most grid failures do not require diesel start-up: POWERBRIDGE™ or batteries are used for the bridge
Fewer generator false starts and less engine wear
Diesel starts immediately or delayed from seconds to minutes
Voltage dips up to 50 % without disconnection; load surges up to 100 %; 99 % harmonic isolation
Highest partial and full load efficiency with connected storage; no power capacitors; service life of over 20 years
Low and medium voltage versions; air or water cooling; containerized version
SPECIFICATIONS
AVAILABLE MODELS
DOCUMENTS
SPECIFICATIONS
Manufacturer
PILLAR
Series
UNIBLOCK™ UBTD+
Device type
Rotary diesel UPS
Power per module
500–2700 kW
Maximum system power
Up to 40 MW
Construction
UNIBLOCK™ motor generator connected to a diesel engine via an overrunning clutch, in a single base frame
Efficiency
Highest efficiency at part and full load with connected energy storage
Voltage
Low or Medium (MV)
Diesel start delay
Adjustable: from seconds to minutes
Engine options
Different diesel engine variants
Output configuration
Single output (100 % power as UPS) or dual output bus: UPS (critical) + short-circuit load
Double insulated busbar
The generator winding supplies the critical bus, the motor winding supplies the short-circuit bus; the circuits are electrically isolated
Parallel connection
MV: up to 40 MW; ZE: typically up to ~5 MW, up to 20 MW using isolated parallel connection
Redundancy schemes
Isolated redundant, distributed redundant (N+1), IP-Bus up to 40 MW, system + system, hot-standby, parallel redundant
Voltage tolerance
Drops up to 50 % nominal without disconnection; up to -30 % without storage energy
Power lines
Critical and emergency can be separated or combined in one distribution
Harmonic isolation
99 %
Cooling
By air or cold water
Dimensions and weight
According to the selected configuration
Applications
Data centers, industry, critical infrastructure
Additional equipment available
Containerized version
Cooling with water from the building's cold water system
