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Petbow Cummins Diesel Generator

Petbow Cummins Diesel GeneratorPetbow Cummins Generators 26 to 55 kVA

Petbow Generating Sets Powered By Cummins B3.3l Series Diesel Engines

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.

 

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

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.

Engine

Cummins B3.3L, 4 cylinder, diesel engines. 500C 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.

Technical Data Generating Sets
Set model CB-26A CP-40A
Prime rating* 26kWe 32kVA 40kWe 50kVA
Standby rating" 30kWe 37kVA 44kWe 55kVA
Set output 380/415V 50 Hz 380/415V 50 Hz
Engine make Cummins Cummins
Model B3.3G1 B3.3G2
Cylinders Four Four
Engine configuration In-line In-line
Governor / class Mechanical/A1 Mechanical/A1
Aspiration Naturally Naturally
Bore and stroke 95mm x 115mm 95mm x 115mm
Compression ratio 18.2:1 17:01
Cubic capacity 3.26 Litres 3.26 Litres
Cranking current @ -18°c 550A 550A
Engine Output-Prime 31.1 kWm 45.3 kWm
Nett at flywheel- standby 34.8 kWm 49.7 kWm
Max. load acceptance - single steps 100% 100%
Alternator size (Prime) UC1224C UC1224E
Alternator voltage regulation ±1.5% ±1.5%
Alternator insulation class H H
Fuel consumption (Prime) 100% load 7.8 L/hr 11.8 L/hr
Fuel consumption (Standby) 100% load 9.0 L/hr 13.6 L/hr
Lubrication oil consumption 0.5% of fuel consumption 0.5% of fuel consumption
Lubrication oil capacity 8Litres 8 Litres
In-skid fuel tank capacity-open set 110 Litres 110 Litres
Fuel tank capacity - MONZA canopy 450 Litres 450 Litres
Coolant capacity-radiator and engine 11.5 Litres 14 Litres
Exhaust temp-full load 450°C 475°C
Exhaust gas flow-full load prime 0.949M3/s, 341.5M3/hr 0.1369m3/s, 492.71 m3/hr
Exhaust gas back pressure max 10.2 kPa, 76mm Hg 10.2 kPa, 76mm Hg
Air flow-radiator (50°C ambient) 2.18M3/s, 7868m3/hr 5.23 m3/s, 8889M3/hr
Air flow - engine intake 0.0349M3/s, 125.7M3/hr 0.0489M3/s, 176m3/hr
Heat radiated to ambient 10.1 kW 15.4 kW
Derating factors - temp. 2% per 10°C above 40°C 4.5% per 10°C above 40°C
Derating factors - altitude 0.7% per 100m above 1 OOOm 0.9% per 100 m above 1000m

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.