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Waukesha gas engines

Control Systems

VHP* SERIES FIVE RECOMMENDED ALARM AND SHUTDOWN SETPOINTS The following is a list of recommended “alarm” and “shutdown” setpoints for VHP Series 5 engines for various engine operating parameters. These values can be used as a guide when designing protection or monitoring systems. The “alarm” values shown are maximum values – they can be adjusted lower to suit a specific application or measurement device. By utilizing controls that simultaneously shut off the fuel supply and ignition system upon reaching a “shutdown” value, the potential for engine damage is reduced. Refer to ESM2 HMI for calibration and limits from the “PARAMETERS” > “ADV“> “Advanced Settings” and “VISUALIZATION” > “ADV” > “Setpoints” screens respectively.

Alarm and shutdown values indicate deviation from designed operation and are not meant for continuous engine service. Engine and control systems must be designed to and operated at normal values. Disregard may result in engine damage. Alarm and shutdown values are based on using dry natural gas of 900 BTU/cu.ft. (35.38 MJ/m3 [25,V(0;101.325)]) Saturated Lower Heating Value (SLHV) as fuel. Refer to the “Gaseous Fuel Specification for GE Waukesha Engines” standard sheet, S07884-7 or latest version, and the “Lubricating Oil Recommendations for GE Waukesha Engines” standard sheet, S-01015-30 or latest version, for typical changes to operating temperatures for jacket water and lube oil when running on landfill or digester gas fuels. Refer to the most recent version of the GE Waukesha’s Gas Engine Price Book to determine which shutdown devices are included as standard equipment with any specific engine model. For information on recommended alarms and shutdowns for other engine models, refer to the most recent version of the RECOMMENDED ALARM AND SHUTDOWN SETPOINTS standard sheet, S-08382-2 or latest version. JACKET WATER OUTLET TEMPERATURE: Normal: 180° F (82° C) for continuous rating. Alarm: 190° F (88° C) Shutdown: 200° F (93° C) LUBE OIL HEADER TEMPERATURE: Normal: 180° F (82° C) Alarm: 190° F (88° C) Shutdown: 200° F (93° C) LUBE OIL HEADER PRESSURE: Normal: 50 – 60 psi (345 – 415 kPa) Alarm: 35 psi (241 kPa) Shutdown: 30 psi (207 kPa) LUBE OIL FILTER DIFFERENTIAL PRESSURE: Normal: 2 – 25 psi (14 – 172 kPa differential) Alarm: 25 psi (172 kPa differential) INTAKE MANIFOLD TEMPERATURE: Alarm: 155° F (68.5° C) Shutdown: 160° F (71° C)

Page 1 of 3

VHP* Series Five Recommended Alarm And Shutdown Setpoints

EN: 162283 DATE: 2/19

Ref. S 8382-3

Waukesha gas engines

Control Systems

INTAKE MANIFOLD PRESSURE: Contact GE Waukesha’s Application Engineering. MAIN BEARING TEMPERATURE: Shutdown: 250° F (121° C) OVERSPEED: Shutdown: Not to exceed 10% over governed speed. Power Generation Systems: Shutdown: 15-18% over governed speed, not to exceed 1380 RPM. Caution: When setting engine overspeed shutdown, do not exceed the lesser of engine or driven equipment’s speed limits. To avoid equipment damage, consult the driven equipment manufacturer for maximum overspeed value. FUEL PRESSURE: Alarm: Shutdown:

The minimum fuel pressure at the regulator (from Tech Data). 85% of the alarm value.

CATALYST DELTA PRESSURE Alarm: 0.54 psi (3.75 kPa) Shutdown: 0.73 psi (5 kPa) CRANKCASE PRESSURE Alarm: 0.22 psi (1.5 kPa) Shutdown: 0.29 psi (2 kPa) POST-CATALYST PRESSURE Alarm: 0.80 psi (5.5 kPa) Shutdown: 0.94 psi (6.5 kPa) PRE-CATALYST PRESSURE Alarm: 0.80 psi (5.5 kPa) Shutdown: 0.94 psi (6.5 kPa) TURBINE INLET TEMPERATURE Alarm: 1427°F (775°C) Shutdown: 1454°F (790°C) EXHAUST PORT TEMPERATURE Alarm: 1450°F (788°C) Shutdown: 1475°F (802°C)

Page 2 of 3

VHP* Series Five Recommended Alarm And Shutdown Setpoints

EN: 162283 DATE: 2/19

Ref. S 8382-3

Waukesha gas engines

Control Systems

POST-CATALYST TEMPERATURE Alarm: 1250°F (677°C) Shutdown: 1301°F (705°C) PRE-CATALYST TEMPERATURE Alarm: 1250°F (677°C) Shutdown: 1301°F (705°C) CYLINDER EXHAUST TEMPERATURE LOW Alarm: 482°F (250°C) CYLINDER EXH TEMP DEVIATION Alarm: 180°F (100°C) OIL PRESSURE PREMISSIVE START Shutdown: 1.45 psi Gauge (10 kPa Gauge) SYSTEM VOLTAGE High: Low:

32 V 21 V

OVERLOAD Alarm: Shutdown:

5% 8%

*Indicates a trademark.

Page 3 of 3

VHP* Series Five Recommended Alarm And Shutdown Setpoints

EN: 162283 DATE: 2/19

Ref. S 8382-3