Series 12M55NG

Gas piston engine model

Nominal rotation speed, min^-1

Engine power

Generator power

Boost type

Control type

Prime Power (PRP), kW

Continuous Power (COP), kW

Prime Power (PRP)

Continuous Power

(COP)

kW

kVA

kW

kVA

12M55G6N0/5

1500

-

1588

-

-

1500

1875

T/Vod-V

ECU

Cylinder block and piston group

Air supply and exhaust systems

Cast iron cylinder block. Inspection hatches for servicing each cylinder.

Power structure of the crankcase/oil pan.

Flywheel housing with additional space for installing a barring device.

Individual cylinder heads. 4 valves per 1 cylinder.

Forged crankshaft made of hardened steel with induction hardened main journals, connecting rod journals and fillets.

Lightweight pistons with cooling and high-quality piston rings.

Overhead turbochargers optimized for the generator set.

Air filters with clogging indicators.

Thermal insulation of turbochargers, exhaust manifolds and pipes.

Fuel system

The engine runs on a lean fuel mixture.

External mixture formation in the mixer.

Electronic control system.

Natural gas is used as fuel.

Gas line included (without certificates).

Electrical system

Electric starter 24V.

Charging generator 55A.

Set of basic sensors.

Flywheel housing and flywheel

SAE 00 flywheel housing and 21” flywheel.

Cooling system

Cooling system with gear-driven coolant pumps.

Engines are supplied without a cooling unit.

Lubrication system

Full-flow fine oil filters with bypass valve.

Water-oil heat exchangers.

Centrifugal oil filters.

Diesel engine model

Nominal speed

Min^-1

«L»

Length*, mm

«W»

Width*, mm

"N"

Height*, mm

"Dry"

Weight, kg

12M55G6N0/5

1500

3060

1990

2420

9600

Continuous Operation Power (COP)

Primary Operation Power (PRP)

Continuous power is the maximum power of the generating set when operating on a constant load without limitation of the operating time per year with breaks for maintenance in accordance with the manufacturer's instructions.

Prime power is the maximum power of the generating set when operating on a variable load without limitation of the operating time per year with breaks for maintenance. For continuous operation over 24 h, the average permissible power shall not exceed 70% of the prime power (PRP). When determining the average actual power variable power values ​​that make up less than 30% of the prime power are taken as 30%, and downtime is not taken into account.

Maintenance

Scheduled maintenance every 750 engine hours. Extended service interval based on oil analysis.

Operating time before major repairs is at least 60,000 engine hours. Engine life, taking into account three major repairs, is at least 240,000 engine hours.

Standard fuel gas parameters

Net heating value

＞

36

MJ/m³

Methane content

＞

80

%

Rate of pressure change

≤

1

kPa/min

Hydrogen sulfide content

≤

20

mg/Nm³

Content of mechanical impurities

≤

30

mg/Nm³

Content of ammonia

≤

20

mg/Nm³

Resin content

≤

50

mg/m³

Water vapor concentration

≤

20

mg/Nm³

Methane number

＞

80