RPS Station
Solutions for the
North American Solar Market
Power, control
and green solutions
3
RPS Station
Bonfiglioli’s RPS Station is a fully integrated
photovoltaic power conversion system that is designed
to minimize field installation time and maximize system
uptime over a longer lifetime.
The RPS Station is equipped with Bonfiglioli RPS TL-UL
inverters (certification pending).
Flexibility
The RPS Station is available in a wide range of
configurations, electrical power ratings and
design options to meet even the most demanding
requirements.
Optional design features include air-conditioning,
insulation, wind loading, snow loading and seismic
limits, all in compliance with the NEC and CEC where
required.
Reliability and Performance
The complete RPS Station from Bonfiglioli is factoryassembled with either a pre-fabricated metal building
or pre-cast concrete building. The completely
weatherproof, NEMA 3R-rated structure offers two
distinct advantages: it protects the equipment from
the environment (resulting in less maintenance and a
longer lifetime), and protects maintenance personnel
from the elements.
The standard system includes a temperature-controlled
cooling system and air filters. The oil-filled transformer
is an ANSI standard pad-mount style and is supplied
completely filled with environmentally friendly oil
(sealed for longer lifetime).
A wide range of features are available including:
• Standard power ratings from 1.0 MWac to 2.8 MWac
• Primary voltages from 12.47KV to 34.5KV
• Wye or delta configuration
• Dead front elbows (radial or loop feed)
• Under-oil load break switch
• Primary fuse protection
• Surge arrestors
• Direct mounting to pre-poured concrete slab base or
pier mounted
• PE certified design and construction
Proven Technology and Longevity
Supported by more than 40 R&D engineers and over
25 years of engineering excellence in power conversion
technology, Bonfiglioli has the required footprint,
experience and infrastructure to develop and deliver
complete cost-effective solutions, from MPPT tracking
to utility interconnection.
In addition, the overall business composition of
Bonfiglioli ensures financial stability to support
installations long-term, and to provide and support
an uptime guarantee and wide range of extended
warranty options.
Contact us or visit BonfiglioliUSA.com/PV for more
information.
INVERTER ENCLOSURE
MV TRANSFORMER
INTEGRAL MV SWITCH
4
RPS Station
Design Features
• Available with and without integrated MV
transformer
• Bottom DC cable entry glands
• Bottom AC cable entry direct to MV transformer
terminals
• Power cabling from inverters to power transformer
fully installed
• Inverter cooling duct system, air inlet louver and
outlet louver
• Temperature-controlled cooling fans where
required
• Insulation to prevent excessive heat build-up from
solar radiation
• Removable lifting lugs
• Utility power distribution equipment, lighting
receptacles, cooling fans and optional customer
loads or external tracker motors
• Optional SCADA control panel
• Optional fused metal-clad switchgear
Transformer Design
• Wide range of MV connection voltages available
• Pad-mount oil filled, ONAN cooling
• Integral 300A under-oil loadbreak switch
• Off-load tap changer with 4 taps from -5% to 5%
• 6 dead-front bushings for loop feed
• Integral MV fuse protection
• Optional MV surge arrestors
• Internal gauges: liquid level, thermometer, pressure
(optional external mounting)
• One or two isolated LV windings with electro-static
shield
Additional customized features and options are
available. Please contact us today to learn more.
Design Standards
• NEC, OSHA & CEC compliant working clearance
including 2 personnel access doors with panic
hardware
• Designed according to the UBC code for wind,
seismic, snow and floor loading
• Suitable for all non-hazardous and non-harsh
industrial environments
• Direct mounting to pre-poured concrete slab base
or pier mounted
• PE certified design and construction
Equipment layout 2.8 MW RPS Station (typical)
MAN DOOR W/ PANIC HARDWARE
INVERTER #1
D/C CABLE
ENTRY
(BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
A/C CABLE
ENTRY
(TOP/BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
A/C HIGH VOLTAGE INPUT
MV
TRANSFORMER
805
[31.693]
5000
[196.85]
D/C CABLE
ENTRY
(BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
A/C CABLE
ENTRY
(TOP/BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
INVERTER #2
D/C CABLE
ENTRY
(BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
D/C CABLE
ENTRY
(BOTTOM)
5
The flexibility of the Bonfiglioli RPS Station allows
utility-scale solar power plants to be easily designed
while providing a very cost effective solution for a
wide range of applications.
A typical arrangement of the Bonfiglioli RPS Station for a utility scale solar plant.
Utility
Network
MV Cables in “Loop-feed”
configuration
RPS
Station
MV Substation/POI
6
RPS Station
1000
1500
1600
2000
2800
1750
2600
2800
3500
4900
Input ratings
Maximum input current
A
Maximum input voltage
V
MPPT range
V
Inverter configuration
Number of Inverters - MPPT Trackers
1000
550 ... 875
Multi-MPPT
Multi-MPPT
Master-Slave
Multi-MPPT
Multi-MPPT
1-5
2-8
2-2
2-10
2-14
Inverter Output Ratings
AC voltage
V
360
C voltage range
V
317 - 396 (-12% to +10%)
Frequency
Hz
Rated power
kW
1000
1500
1600
2000
2800
Rated current
A
1 x 640
2 x 1200
2 x 1280
2 x 1600
2 x 2240
Power factor
-
>0.99 at rated power (adjustable 0.9 lead to 0.9 lag)
%
3
Maximum Harmonic Distortion (THD)
60
MV Transformer (optional)
Utility voltage
kW
12.47/ 13.2/ 13.8/ 27.6/ 34.5 (others possible)
Transformer Type
MV Winding Configuration
Rated power
Pad-Mount Oil Filled (with environmentally friendly oil)
-
Delta or Wye
kVA
1000
1500
1600
2000
2800
LV Winding Configuration
-
1 x Delta
2 x Delta
2 x Delta
2 x Delta
2 x Delta
MV Connection
-
Radial or loop feed with tap changer and integrated MV loadbreak switch
Transformer Protection
-
Wide range of features including elbow connections, fusing and surge arrestors
Auxiliary Power
External auxiliary voltage
Auxiliary loads
-
480V or 600V - 3 Phase (internal feed optional)
W
Lighting, receptacles, cooling fans (optional external tracker power)
Efficiency
Maximum efficiency - inverter
%
98.6
CEC weighted efficiency - inverter
%
98.0 (estimated)
Transformer efficiency
%
> 99.0 (CEC weighting)
Mechanical Details*
Dimensions (WxHxD) - with transformer
Weight (approx.) - with transformer
Dimensions (WxHxD)
without transformer
Weight (approx.) - with transformer
m
2.6 x 3.1 x 7.9
3.3 x 3.3 x 7.9
3.3 x 3.3 x 8.5
3.3 x 3.3 x 8.5
ft
8 x 9.5 x 24
10 x 10 x 24
10 x 10 x 26
10 x 10 x 26
3.3 x 3.3 x 9.9
10 x 10 x 30
Lbs/kg
30,700 / 13,900
39,200 / 17,750
42,700 / 19,320
46,200 / 20,905
56,000 / 25,340
m
2.6 x 3.1 x 5.3
3.3 x 3.3 x 5.3
3.3 x 3.3 x 5.9
3.3 x 3.3 x 5.9
3.3 x 3.3 x 7.2
ft
8 x 9.5 x 16
10 x 10 x 16
10 x 10 x 18
10 x 10 x 18
10 x 10 x 22
Lbs/kg
18,200 / 8,235
25,200 / 11,400
28,250 / 12,780
29,400 / 13,300
36,500 / 16,500
Cooling system
-
Forced air cooling with fans and filter (optional space heaters and air conditioner)
Protection class
-
Nema 3R
°C
14°F … 122°F (-10°C ... +50°C)
-
RS-485 (ModBus® or proprietary), Options: CAN, Profibus®, Modbus® TCP/IP
Standards
-
NEC , UL1741/ CSA 107.1 / IEEE 1547 (Inverter Certification Pending)
Testing
-
IEEE 1547.1/ IEEE C62.41.2/ IEEE C62.45/ IEEE C37.90.1/ IEEE C37.90.2
Environmental conditions
-
EN 60721-3-3 (3K3, 3B1, 3C2, 3S2 , 3M2)
Power management functions (optional)
-
LVRT, Power Factor Control, Grid Fault Support, Power Control and Ramp Rate
Temperature
Operating Ambient temperature range**
Interfaces
Communication interface
Standards & Certification
* Estimated data, final values may change based on final design of system and selection of optional features.
7
Bonfiglioli Solutions
As one of the world’s leading providers of clean
energy solutions, with utility-scale PV installations
currently in place around the world, Bonfiglioli has
the innovative know-how and technical capacity to
bring commercial and utility-scale PV power plants
to life.
For the PV sector, Bonfiglioli designs and
manufactures highly efficient and innovative
electronic control systems for photovoltaic fields
and has the expertise to manage every aspect of
photovoltaic energy generation from MPPT tracking
to utility interconnection.
Bonfiglioli also designs and manufactures a complete
range of gearmotors, drive systems and planetary
gearboxes for industrial processes, automation,
mobile machinery and wind energy applications.
Over 50 years of engineering excellence makes
Bonfiglioli a preferred supplier and partner for
market leaders around the world.
For more information, visit Bonfiglioliusa.com
wind
industrial
mobile
photovoltaic
Bonfiglioli has been designing and developing innovative
and reliable power transmission and control solutions
for industrial, mobile machinery and renewable energy
applications since 1956.
Bonfiglioli USA
3541 Hargrave Drive, Hebron, Kentucky 41048
tel. (+1) 859 334 3333 - fax (+1) 859 334 8888
www.bonfiglioliusa.com
VEC 869 R0