Diesel Generator Set
B3.9 Series
70-82.5 kVA, 56-66 kWe Prime
Latest Technology And Unmatched
Performance
The Cummins
®
B3.9 series rugged engine and world
class Stamford alternator powered diesel generator set
Advanced in-cylinder technology to meet latest
emission norms without any after-treatment device.
Smart aesthetic and superior finish
Compact in size with optimum power to weight ratio
Environment Friendly Power
Class defining technology engine is designed to meet
stringent exhaust emission tests as per revised MoEF
norms, thus offering environment friendly power.
The Cummins
®
diesel generator sets are available with
the lowest noise levels in its range
Lowest Operating Cost And
Comprehensive Warranty
Highly reliable and durable product
All elements are designed to work together to
maximize efficiency even at part loads, offering the
advantage of lowest operating costs.
500 Hours/ 1 year service interval
Industry acknowledged best-in-class comprehensive
warranty on the entire package including rubber
components
Single Source Power Assurance
All the major components – the engine, alternator,
control system and canopy are designed,
manufactured and tested by Cummins India.
Best and largest customer support network in India,
capable of providing round-the-clock service and
spares support
All these things put together, Cummins
®
offers you
SINGLE SOURCE POWER ASSURANCE
Specification Sheet
Engine
Cummins B3.9 series, 4 cylinder, In-line 4 stroke, radiator
cooled engine
Well designed air handling system with
— Dry type, Replaceable paper element air cleaner with
restriction indicator
— Air to air aftercooling
— Optimised turbocharger for increased altitude
capabilities
Optimised fuel consumption with
— Inline fuel pump with mechanical governing
— Spin on fuel filter
Standard integral set-mounted radiator system, designed
and tested for 50°C ambient temperatures
Full flow spin on lube oil filter
First fill of lube oil and coolant
Electrical starter motor with soft start engagement feature
Battery charging alternator
1 x 12 V DC battery
Alternator
Stamford UC22 alternator frames from Cummins Generator
Technologies
Brushless type, Screen protected, Revolving field, Self
excited alternator conforming to IS/IEC 60034-1
3 Phase reconnectable winding with 12 terminals brought
out for connection
Better motor starting capability
Best in class efficiency
Compact design with sealed bearings for longer life and
lesser maintenance
Impregnation on all wound components for better
mechanical strength
Control Panel
Control panel is manufactured with 14/16 gauge CRCA sheet
and is powder coated for weather-proof and long lasting finish.
The control panel consists of the following parts:
PS0500 Controller
Aluminium bus bars with suitable capacity with incoming/
outgoing terminals
Indicating lamps for ‘Load ON’ and ‘Set Running’
Instrument fuses duly wired and ferruled
MCCB of suitable rating with overload and short circuit
protections
PS0500 Features
Cummins PowerStart
™
PS0500 control is a
microprocessor based
generator set monitoring and
control system. This control
includes an intuitive operator
interface that allows for
complete generator set
control as well as system metering, fault annunciation,
configuration and diagnostics.
Intuitive operator interface which includes LED backlit LCD
display with tactile feel soft-switches and generator set
status LED lamps
Remote Start-Stop
Engine Metering: Oil pressure, Engine temperature, Starting
battery voltage, Engine running hours
AC Alternator Metering: L-L Voltage and L-N Voltage,
Current (phase and total), kVA (phase and total) and
Frequency.
Engine Protection: Low lube oil pressure, High/Low coolant
temperature, Battery Over/Under/Weak Volts, Fail to Crank/
Start, Sensor failure, Cranking lockout, Low fuel level.
AC Alternator Protection: Over/Under Voltage, Over/Under
Frequency, Loss of AC Sensing.
Data Logging: Engine hours, Control hours and upto 5
recent fault codes
Configurable glow plug control
12 Volt DC operation
Sleep mode
Modbus interface (RS485 RTU)
InPower compatible (PC based service tool)
Certifications - meets the requirement of relevant ISO, EN,
Mil Std. and CE standards
Silencer
Hospital grade Silencer suitably optimi
s
ed to meet stringent
noise emission standards laid down by MoEF / CPCB
Mounting Arrangement
Engine and alternator are mounted on a common MS
fabricated base frame with AVM pads.
Base frame with integral fuel tank is provided with drain
plug, air vent, inlet and outlet connection, level indicator and
provision for cleaning
Optional
Engine:
Coolant heater, Oil drain pump, Heavy duty air
cleaner, Electronic Governing
Alternator:
PMG
Control Panel:
PC1.1, Microprocessor / relay based AMF
control panel
Others:
Trolley mounted mobile sets
Diesel Generator Set B3.9 Series
Specification Sheet
Acoustic Enclosure
Specially designed to meet stringent MoEF/ CPCB norms of
75 dBA @ 1mtr at 75% load under free field conditions
The acoustic enclosure is made CRCA sheets in munsel
green shade and a structural/ sheet metal base frame
painted in black.
High quality noise absorbant and fire-retardant grade
acoustic Insulation material (P.U. Foam) complying to IS
8183
Two point lifting for easy handling at customer site
Technical Data
Generator Set Specification
Model
C70D5P
C82.5D5P
Duty
Prime
Prime
Power Rating kVA / kWe
70/56
82.5/66
No. of Phases
3
3
Output Voltage and Frequency (V and Hz)
415 V, 50 Hz
415 V, 50 Hz
Power Factor
0.8 (lagging)
0.8 (lagging)
Current (A)
98
115
RPM
1500
1500
Engine Specification
Make
Cummins
Cummins
Model
4BTAA3.9-G3
4BTAA3.9-G4
MoEF Certified Power (hp)
99
110
Required Power for Rated kVA (hp)
91
105
Cooling
Liquid Cooled (EG Compleat 50:50)
Liquid Cooled (EG Compleat 50:50)
Aspiration
Turbocharged, Charge Air Cooled
Turbocharged, Charge Air Cooled
No. of cylinders
4, In-line
4, In-line
Bore (mm) x Stroke (mm)
102 x 120
102 x 120
Compression ratio
18:1
18:1
Displacement (litre)
3.9
3.9
Fuel
High Speed Diesel
High Speed Diesel
Fuel consumption @75% load with radiator and fan* (litre/hr)
13.64
15.
69
Fuel consumption @100% load with radiator and fan* (litre/hr)
18.34
20.
88
Performance class of generator set
ISO 8528-5 G2
ISO 8528-5 G2
Starting system
12 V DC Electrical
12 V DC Electrical
Lube oil specification
CI4+ 15W40
CI4+ 15W40
Lube oil sump capacity, High-Low level (litre)
14 - 9
14 - 9
Total lubrication system capacity (litre)
16
16
Lube oil consumption @ full load** (litre/hr)
0.03
0.03
Total coolant capacity (litre)
19
19
Exhaust pipe size (inch)
3.5
3.5
Total wet weight (Engine+Radiator)
##
(kg)
450
450
Length x Width x Height (Engine) (mm)
780 x 745 x 890
780 x 745 x 890
Mean Piston speed (m/s)
6
6
Combustion air intake @100% load (±5%) (cfm)
212
259
Exhaust Temperature (°C)
500
450
Alternator Specification
Make
Stamford (CGT)
Stamford (CGT)
Alternator Frame
UCI224F
UCI224G
Enclosure
IP 23
IP 23
Voltage regulation (Max.)
±1%
±1%
Class of Insulation
H Class
H Class
Winding Pitch
2/3
2/3
Stator Winding
Double layer lap
Double layer lap
Rotor
Dynamically Balanced
Dynamically Balanced
Waveform distortion/ Total Harmonic Distortion
No load < 1.5 %, Non distorting
balanced linear load < 5 %
No load < 1.5 %, Non distorting
balanced linear load < 5 %
Maximum Unbalanced Load across phases
#
less than or equal to 25%
less than or equal to 25%
Telephonic Harmonic factor
< 2%
< 2%
Designed to have optimum serviceability
Air inlet louvers specially designed to operate at rated load
Made on special purpose CNC machines for consistency in
quality and workmanship
11 tank pretreatment process and UV resistant powder
coating of all parts to withstand extreme environment
Use of special hardware for longer life
Flush styling - no projections
Fluid drains for lube oil and fuel
Fuel filling arrangement inside the enclosure
* Fuel consumption data is based on diesel having specific gravity of 0.85 and conforming to IS:1460. Fuel consumption tolerance is +5%
**Oil consumption data is based on oil having specific gravity of 0.89 and meeting CI4+ API categories
# With the condition that none of the phases exceeds its rated current
Diesel Generator Set B3.9 Series
Specification Sheet
Cummins India Limited
Power Generation Business Unit
Cummins India Office Campus
Tower-A, 6
th
Floor, S. No. 21,
Balewadi, Pune – 411 045 (India)
Email: cpgindia@cummins.com
www.cumminsindia.com
“Our energy working for you.”
© 201
5
Cummins Power Generation Inc. All rights reserved.
Cummins Power Generation and Cummins are registered trademarks of Cummins Inc.
PowerCommand, AmpSentry, InPower and are trademarks of Cummins Power Generation.
Other company product or service names may be trademarks or service marks of others.
Specifications are subject to change without notice.
PGBU/0
0
2
/B3.9 70-82.5 kVA/
SA
/
KG
/July 201
5
Typical Enclosed Genset Dimensions
Genset
Model
Rating
(kVA)
Length
(mm)
Width
(mm)
Height
(mm)
Wet Weight
##
(kg)
Standard Fuel tank
Capacity (litre)
C70D5P
70
3850
1150
1700
1915
1
4
5
C82.5D5P
82.5
3850
1150
1700
1915
1
4
5
## Approximate Weight
Rating Definitions
Prime Power (PRP):
Applicable for supplying power to varying electrical load for
unlimited hours. Prime Power (PRP) is in accordance with ISO
8528.
Conformance Standards
IS/IEC 60034-1
IS 1460
ISO 8528
ISO 3046
ISO 9001
IS 13018
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Cummins Power Generation India
Authorised Representative
Cummins Power Generation Offices
Bengaluru:
Tel.: (080) 2325 9161 / 63, 2325 9165 / 67
Fax: (080) 2325 9164
Chandigarh:
Tel.: (0172) 224 0371-73
Fax: (0172) 224 0372
Chennai:
Tel.: (044) 2446 8110 / 2446 8113
Fax: (044) 2491 1120
Gurgaon:
Tel.: (0124) 391 0900-01
Fax : (0124) 391 0916
Hyderabad:
Tel.: (040) 2340 9970 / 2340 9980
Fax. (040) 2340 9990
Jaipur:
Tel.: (0141) 236 4944
Fax: (0141) 403 8794
Kolkata:
Tel.: (033) 2287 8065 / 2287 2481
Fax: (033) 2290 3839
Lucknow:
Tel.: (0522) 230 5049 / 230 5059
Fax: (0522) 230 5035
Mohali:
Tel.: (0172) 224 0371 / 72 / 73
Fax: (0172) 224 0371 / 72 / 73
Vadodara:
Tel.: (0265) 233 0627 / 3053627
Fax: (0265) 234 0623
Diesel Generator Set B3.9 Series
Specification Sheet