Petbow Generating Sets Powered By
Cummins B Series
Diesel Engines
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Model
|
Prime
kW(kVA)
|
Standby
kW(kVA)
|
Engine
Model
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BG-51A
|
51 (64)
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56 (70)
|
4BT3.9G2
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|
BK-68A
|
68 (85)
|
75 (94)
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6BT5.9G2
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BF-85A
|
85 (106)
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95 (119)
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6BT5.9G2
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|
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Circuit Breaker Cubicle
3-pole moulded case circuit breaker with optional
shunt trip and auxiliary contacts.
Finish
High gloss green finish.
General
Set of operating and instruction manuals.
Options
Refer distributor for range details.
Optional MONZA Acoustic Enclosure
- 70 dBA @ 7 metres (average). - 4 point lift and
skid ends standard. - Central lifting frame optional. - Lockable
doors. - Vertical air discharge. - Compact footprint design.
12 Lite Detector Control Panel
Controls generator set start and shutdown.
Automatic remote start.
DC panel lighting.
Panel mounted on vibration isolators.
Analog gauges display performance trends.
Panel Standard Specification
Run-stop-remote switch.
Automatic remote starting, 2 wire.
Coolant temperature gauge.
Oil pressure gauge.
DC voltmeter.
Running time meter.
Fault reset switch.
Lamp test switch.
AC voltmeter / ammeter with selector switch.
Dual scale frequency meter / tachometer.
Emergency stop.
Engine monitoring and shutdown for:
- low oil pressure
- high coolant temperature
- over crank
- over speed
- low coolant level
Common external alarms
Engine
Cummins 4BT3.9G2 and 6BT5.9G2 in-line 4 and 6 cylinder, diesel
engines. 50°C radiator. 12 Volt starting, battery charge
alternator. Set mounted silencer. Spin-on replaceable element fuel
and oil filters. Mechanical governor. (electronic optional). Dry
element air filter.
Alternator
Brushless, single bearing, revolving field. 4-pole screen
protected drip proof. Class H insulation. Rotor and exciter
impregnated with tropical grade insulating polyester resin. Epoxy
coated stator winding. Sealed solid state automatic voltage
regulator. Optional permanent magnet exciter.
Chassis
Fabricated and welded chassis. Builtin anti-vibration
mountings. In-skid fuel tank. Flexible fuel lines.
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Technical Data
|
Generating Sets
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|
Set model
|
BG-51A
|
BK-68A
|
BF-85A
|
|
Prime rating"
|
51 kWe 64kVA
|
68kWe 85kVA
|
85kWe 106kVA
|
|
Standby rating**
|
56kWe 70kVA
|
75kWe 94kVA
|
95kWe 119kVA
|
|
Set output
|
380/415V 50 Hz
|
380/415V 50 Hz
|
380/415V 50 Hz
|
|
Engine make
|
Cummins
|
Cummins
|
Cummins
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|
Model
|
4BT3.9G2
|
6BT5.9G2
|
6BT5.9G2
|
|
Cylinders
|
Four
|
Six
|
Six
|
|
Engine configuration
|
In-line
|
In-line
|
In-line
|
|
Governor / class
|
Mechanical/A1
|
Mechanical/A1
|
Mechanical/A1
|
|
Aspiration
|
Turbocharged
|
Turbocharged
|
Turbocharged
|
|
Bore and stroke
|
102mm x 120mm
|
105mm x 120mm
|
102mm x 120mm
|
|
Compression ratio
|
16.5:1
|
16.5:1
|
17.5:1
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|
Cubic capacity
|
3.92 Litres
|
5.88 Litres
|
5.88 Litres
|
|
Cranking current @
0°c
|
625A
|
625A
|
625A
|
|
Engine Output-Prime
|
56 kWm
|
76 kWm
|
94 kWm
|
|
Nett at flywheel-
standby
|
62 kWm
|
83 kWm
|
103 kWm
|
|
Max. load acceptance - single
steps
|
40 kWe
|
54 kWe
|
65 We
|
|
Alternator size (Prime)
|
UC1224F
|
UC1274C
|
UC1274D
|
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Alternator voltage
regulation
|
±1.0°/a
|
±1.0%
|
±1.0%
|
|
Alternator insulation
class
|
H
|
H
|
H
|
|
Fuel consumption (Prime) 100% load
|
15.37 L/hr
|
19.8 L/hr
|
24.07 L/hr
|
|
Fuel consumption (Standby) 100% load
|
16.88 L/hr
|
21.7 L/hr
|
26.87 L/hr
|
|
Lubrication oil
consumption
|
0.5% of fuel consumption
|
0.5% of fuel consumption
|
0.5°/a of fuel
consumption
|
|
Lubrication oil capacity
|
11 Litres
|
16 Litres
|
16 Litres
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In-skid fuel tank capacity-open
set
|
210 Litres
|
220 Litres
|
220 Litres
|
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Fuel tank capacity - MONZA
canopy
|
450 Litres
|
600 Litres
|
600 Litres
|
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Coolant capacity-radiator and
engine
|
19 Litres
|
25 Litres
|
25 Litres
|
|
Exhaust temp-full load
|
521 °C
|
510°C
|
577°C
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Exhaust gas flow-full load
prime
|
0.158M3/s, 569M3/hr
|
0.2383/s, 842M3/hr
|
0.283m3/s, 1020M3/hr
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|
Exhaust gas back pressure
max
|
10.2 kPa, 76mm Hg
|
10.2 kPa, 76mm Hg
|
10.2 kPa, 76mm Hg
|
|
Air flow-radiator (50°C
ambient)
|
2.26m3/s, 8136m3/hr
|
1.6m3/s, 5760M3/hr
|
2.1 m3/s, 7560m3/hr
|
|
Air flow - engine intake
|
0.057m3/s, 2053/hr
|
0.085M3/s, 306M3/hr
|
0.094m3/s, 338M3/hr
|
|
Heat radiated to ambient
|
15 kW
|
20 kW
|
22 kW
|
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Derating factors - temp.
|
2% per 11 °C above
40°C
|
2% per 11 °C above
40°C
|
2% per 11 °C above
40°C
|
|
Derating factors -
altitude
|
4% per 300m above 150m
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4% per 300m above 1370m
|
4% per 300m above 150m
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1. Data based on engine operating at full working
temperatures, at 1500 rpm (50 Hz).
2. The above figures are representative of an engine test only,
and cannot be construed as a guarantee by Cummins Engine Co. Ltd.
They should therefore be used for guidance only.
3. Generator sets operating in standby applications may require
engine coolant heaters - please contact Distributor for
details.
* Prime: Continuous running at variable load for unlimited
periods with 10% overload available fort hour in any 12 hour
period.
** Standby: Continuous running at variable load for duration of
emergency.
Environmental conditions for set running ratings 400c ambient,
152.4m above sea level, 60% relative humidity. Voltages: Standard
380-450V.
Compliance Standards: To BS4999/5000 pt 99, VDE 0530, UTE51 000,
NEMA MG1-22, CEMA, IEC 34, CSA A22.2, AS1359, BS5514, ISO 2046 and
ISO 8528.
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