Engine
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Alternator
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50 Hz 3- Phase Power Factor Cos ɸ = 0.8
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| Perkins 4012-46TWG2A |
Stamford PI 734B |
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| Rating |
Prime Power (PRP) |
Standby Power (LTP) |
| Voltage |
kVA |
kWe |
kVA |
kWe |
Amps |
| 415/240 |
1250 |
1000 |
1375 |
1100 |
1913 |
| 400/230 |
1250 |
1000 |
1375 |
1100 |
1985 |
| 380/220 |
1250 |
1000 |
1375 |
1100 |
2089 |
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Definition of Ratings & Reference Conditions :
Prime Power (PRP) is the nominal output continuously available, where the average load (variable) does not exceed 80% of the prime
power rating. 10% overload is available for a maximum of 1 hour in 12 hours of operation.
Standby Power (LTP) the maximum output available (at variable load), for up to 500 hours per year. The average load (variable) must not
exceed 80% of the standby power rating. No overload is available. The genset must not operate, at standby rating, in parallel with the
public utility under any circumstances.
Standard Reference Conditions: air inlet temperature 25°C (77°F), barometric pressure 100kPa [110m(361ft) altitude] and 30% relative humidity.
Notes: The above ratings may be subject to derate at different operating conditions. Please see the Derate Guidelines on the Agen wesite.
All power ratings and reference conditions in accordance with ISO 8528-1 and ISO 3046-1.
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Key Features :
 CE certificate
Tropical radiator
Single bearing Stamford alternator with PMG
Fully guarded engine-driven fan
Radiator matrix guard
Fully welded steel baseframe with lifting / jacking points
8 hour capacity base fuel tank
Heavy duty rubber anti-vibration mountings fitted inboard
Main line circuit breaker (optional)
Industrial exhaust silencer supplied loose
Exhaust flexible section
Jacket water heater
Constant potential battery charger
24V starter batteries and connecting cables
Auto Start control system with digital instrumentation
RS232/RS485
Low oil pressure protection
High engine temperature protection
Overspeed protection
Low coolant level protection
Factory Test Certificate based on ISO8528
Operation & Maintenance Manual
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Overal Dimension & Weights - Open Set
Length (L) = 4730mm
Width (W) = 1780mm
Height (H) = 2450mm
Dry Weight = 8900kg
Wet Weight = 9110kg
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Typical Open Generator Sound Pressure Level at 1m, Free Field (dB)
| Overall dBA |
250 Hz |
500 Hz |
1000 Hz |
2000 Hz |
4000 Hz |
| 111 |
105 |
105 |
105 |
104 |
101 |
All specifications and design are subject to change without notice
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Technical Specifications
| Engine General Data |
Alternator Technical Data |
| Manufacturer |
: Perkins |
| Country of manufacture |
: United Kingdom |
| Model |
: 4012-46TWG2A |
| Number of cyclinders |
: 12 |
| Clylinder arrangement |
: 60 ℃ Vee form |
| Cycle |
: 4 stroke |
| Induction system |
: Turbocharged air to water aftercooled |
| Combustion system |
: Direct injection |
| Cooling system |
: Water cooled |
| Engine speed |
: 1500 rpm |
| Gross Engine Power |
: 1224 kWm |
| Bore and stroke |
: 160mm x 190mm |
| Displacement |
: 45.842 litres |
| Compression ratio |
: 13.6:1 |
| Total lubrication capacity |
: 177 litres |
| Total coolant capacity |
: 201 litres |
| Fuel Consumption |
| Engine Speed |
1500 rev/min |
1800 rev/min |
| g/kWh |
l/hr |
g/kWh |
l/hr |
| Standby |
213 |
288 |
220 |
298 |
| Prime power |
212 |
259 |
217 |
266 |
| Continuous baseload |
214 |
207 |
216 |
209 |
| 75% of prime power |
216 |
196 |
tbc |
tbc |
| 50% of prime power |
233 |
143 |
tbc |
tbc |
| 25% of prime power |
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| Manufacturer |
: Stamford |
| Country of manufacture |
: United Kingdom |
| Model |
: PI 734B |
| Number of bearing |
: 1 |
| Insulation class |
: H |
| Winding pitch |
: 2/3 |
| Winding leads |
: 6 |
| Protection |
: IP23 |
| Excitation system |
: Seperately excited by P.M.G. * |
| AVR model |
:
MX341
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| Maximum overspeed |
: 2250 rev/min |
| Voltage regulation |
: ± 1.0 % |
| External voltage adjustment |
: ± 10 % |
| Telephone interference |
: THF<2% |
The STAMFORD PI range of synchronous ac generators are brushless with a rotating field. They are seperately excited by the STAMFORD Permanent Magnet Generator (PMG).
This is a shaft mounted, high frequency, pilot exciter which provides a constant supply of clean power via the Automatic Voltage Regulator (AVR) to the main exciter. The main exciter output is fed to the main rotor, through a full wave bridge rectifier, protected by surge suppression.
Underspeed protection (UFRO) is also provided on the AVR. The UFRO will reduce the generator output voltage proportional to the speed of the generator below a pre-settable level.
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Control Module Specification
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Auto Mains Failure Control Module DSE7220
Automatic load transfer
USB connectivity
132 x 64 pixcel LCD display
Event logging (30) showing date and time
Fully configurable via PC software
LED and LCD alarm indication
Engine execise mode
kWh monitoring
Configurable timers and alarms
Backed up real time clock
Multiple date and time maintenance scheduler
Robust module enclosure
Front panel editor
Five key menu navigation
Nine configurable inputs
Six configurable outputs
Power save mode
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Instrumentation
Generator Volts L1-N, L2-N, L3-N
Generator Volts L1-L2, L2-L3, L3-L1
Generator Amps L1,L2,L3
Generator Frequency Hz
Engine speed RPM
Engine Oil Pressure
Fuel Level %
Engine Temperature
Battery Volts
Engine Hours Run
Generator kVA
Generator kW
Generator Power Factor
Mains Volts L1-N, L2-N, L3-N
Mains Volts L1-L2, L2-L3, L3-L1
Mains Frequency Hz
Generator Power Factor
Charge Alternator Voltage
Generator kVAr
Generator kWh, kVAh, kVArh
Number of engine start
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