Generac Power Systems QT025A Manuel utilisateur

Generator Set

=PROTOTYPE & TORSIONALLY TESTED 4PROVIDES A PROVEN UNIT

=UL2200 TESTED 4ENSURES A QUALITY PRODUCT

=RHINOCOAT PAINT SYSTEM 4IMPROVES RESISTANCE TO ELEMENTS

Engine

=EPA COMPLIANT 4ENVIRONMENTALLY FRIENDLY

=INDUSTRIAL TESTED, GENERAC APPROVED 4ENSURES INDUSTRIAL STANDARDS

=POWER-MATCHED OUTPUT 4ENGINEERED FOR PERFORMANCE

=INDUSTRIAL GRADE 4IMPROVES LONGEVITY AND RELIABILITY

Alternator

=TWO-THIRDS PITCH 4ELIMINATES HARMFUL 3RD HARMONIC

=LAYER WOUND ROTOR & STATOR 4IMPROVES COOLING

=CLASS H MATERIALS 4HEAT TOLERANT DESIGN

=DIGITAL 3-PHASE VOLTAGE CONTROL 4FAST AND ACCURATE RESPONSE

Controls

=ENCAPSULATED BOARD W/ SEALED HARNESS 4EASY, AFFORDABLE REPLACEMENT

=4-20mA VOLTAGE-TO-CURRENT SENSORS 4NOISE RESISTANT 24/7 MONITORING

=SURFACE-MOUNT TECHNOLOGY 4PROVIDES VIBRATION RESISTANCE

=ADVANCED DIAGNOSTICS & COMMUNICATIONS 4HARDENED RELIABILITY

1 of 5

Standby Power Rating

31kVA 25kW 60Hz

Industrial Gaseous Generator Set

EPA Certified Stationary Emergency

Generator image used for illustration purposes only

QT025A 25kW

features benefits

primary codes and standards

QT025A

ENGINE SPECIFICATIONS

General Cooling System

Make Generac Cooling System Type Pressurized Closed

EPA Emissions Compliance Stationary Emergency Water Pump Flow 11 gal/min

EPA Emissions Engine Reference See Emissions Data Sheet Fan Type Pusher

Cylinder # 4 Fan Speed (rpm) 2150

Type In-line Fan Diameter mm (in.) 457 (18)

Displacement - L 2.4 Coolant Heater Wattage 1500

Bore - mm (in.) 86.61 (3.41) Coolant Heater Standard Voltage 120VAC

Stroke - mm (in.) 100.08 (3.94)

Compression Ratio 9.5:1

Intake Air Method Naturally Aspirated

Number of Main Bearings 5 Fuel System

Connecting Rods Forged Fuel Type Natural Gas, Propane Vapor

Cylinder Head Aluminum Carburetor Down Draft

Cylinder Liners No Secondary Fuel Regulator Standard

Ignition High Energy Fuel Shut Off Solenoid Standard

Pistons Aluminum Alloy Operating Fuel Pressure 5" - 14" H2O*

Crankshaft Cast

Lifter Type Overhead Cam *Fuel pressure must remain within specified range and not drop more than 1

in. w.c. from static (no-load) to full load.

Intake Valve Material Steel Alloy

Exhaust Valve Material Hardened Steel

Hardened Valve Seats Yes Engine Electrical System

System Voltage 12VDC

Lubrication System Battery Charging Alternator (Amps) 30

Oil Pump Type Gear Battery Size (at 0ºC) 525CCA

Oil Filter Type Full-flow spin-on cartridge Battery Group 26

Crankcase Capacity - L (qts) 3.8 (4) Battery Voltage 12VDC

Ground Polarity Negative

ALTERNATOR SPECIFICATIONS

Standard Model 390mm Voltage Regulator Type Full Digital

Poles 4 Number of Sensed Phases 3

Field Type Revolving Regulation Accuracy (Steady State) +/- 0.25%

Insulation Class - Rotor H

Insulation Class - Stator H

Total Harmonic Distortion <5% Engine Governing

Telephone Interference Factor (TIF) <50 Governor Electronic

Standard Excitation Brush Type Frequency Regulation (Steady State) +/- 0.25%

Bearings Sealed Ball

Coupling Flexibile Disc

Load Capacity - Standby 100%

Prototype Short Circuit Test Yes

CODES AND STANDARDS COMPLIANCE (WHERE APPLICABLE)

NFPA 99 BS5514

NFPA 110 SAE J1349

ISO 8528-5 DIN6271

ISO 1708A.5 IEEE C62.41 TESTING

ISO 3046 NEMA ICS 1

UL2200

2 of 5

QT025A application and engineering data

QT025A 25kW

Rating Definitions:

Standby – Applicable for a varying emergency load for the duration of a utility power outage with no overload capability. (Max. load factor = 70%)

POWER RATINGS (kW)

STARTING CAPABILITIES (sKVA)

FUEL

COOLING

COMBUSTION AIR REQUIREMENTS

ENGINE EXHAUST

Natural Gas Propane Vapor

Single-Phase 120/240VAC @1.0pf 25 Amps: 104 25 Amps: 104

Three-Phase 120/208VAC @0.8pf 25 Amps: 87 25 Amps: 87

Three-Phase 120/240VAC @0.8pf 25 Amps: 75 25 Amps: 75

Three-Phase 277/480VAC @0.8pf 25 Amps: 38 25 Amps: 38

sKVA vs. Voltage Dip

480VAC 208/240VAC

Alternator kW 10% 15% 20% 25% 30% 35% 10% 15% 20% 25% 30% 35%

Standard 25 16 25 33 41 49 57 12 19 25 31 37 43

Fuel Consumption Rates*

Natural Gas Propane Vapor

Percent Load ft3/hr m3/hr Percent Load ft3/hr m3/hr

25% 140 3.9 25% 56 1.6

50% 220 6.2 50% 87 2.5

75% 300 8.5 75% 119 3.4

100% 380 10.8 100% 151 4.3

* Refer to "Emissions Data Sheet" for maximum fuel flow for EPA and SCAQMD permitting purposes.

STANDBY

Air Flow (inlet air combustion and radiator) ft3/min (m3/min) 1500 (42.48)

System Coolant Capacity Gal (Liters) 2.5 (9.46)

Heat Rejection to Coolant BTU/hr 95,000

Max. Operating Air Temp on Radiator ºF (ºC) 122 (50)

Max. Ambient Temperature ºF (ºC) 104 (40)

Maximum Radiator Backpressure in H2O 1.5

STANDBY

Flow at Rated Power cfm 70

STANDBY

Rated Engine Speed rpm 1800

Horsepower at Rated kW** hp 40

Piston Speed ft/min 1182

BMEP psi 120

** Refer to “Emissions Data Sheet” for maximum bHP for EPA and SCAQMD permitting purposes.

STANDBY

Exhaust Flow (Rated Output) cfm (m3/min) 220 (6.2)

Maximum Recommended Back Pressure inHg 1.5

Exhaust Temp (Rated Output) ºF (ºC) 975 (524)

Exhaust Outlet Size in 2.5

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QT025A operating data (60Hz)

QT025A 25kW

Deration – Operational characteristics consider maximum ambient conditions. Derate factors may apply under atypical site conditions. Please consult a Generac Power Systems Industrial Dealer for

additional details. All performance ratings in accordance with ISO3046, BS5514, ISO8528 and DIN6271 standards.

4 of 5

QT025A standard features and options

QT025A 25kW

GENERATOR SET

Genset Vibration Isolation Std

Extended warranty Opt

Gen-Link™ Communications Software Opt

Steel Enclosure Opt

Aluminum Enclosure Opt

ENGINE SYSTEM

General

Oil Drain Extension Std

Critical Exhaust Silencer Std

Air cleaner Std

Fan guard Std

Radiator duct adapter Std

Fuel System

Fuel lockoff solenoid Std

Secondary Fuel Regulator Std

Flexible fuel lines Std

Cooling System

120VAC Coolant Heater Std

Closed Coolant Recovery System Std

UV/Ozone resistant hoses Std

Factory-Installed Radiator Std

Radiator Drain Extension Std

Engine Electrical System

Battery charging alternator Std

Battery cables Std

Battery tray Std

Solenoid activated starter motor Std

10A UL float/equalize battery charger Std

Rubber-booted engine electrical connections Std

ALTERNATOR SYSTEM

UL2200 GENprotect™ Std

Main Line Circuit Breaker Std

CONTROL SYSTEM

Control Panel

Digital H Control Panel - Dual 4x20 Display Std

Programmable Crank Limiter Std

21-Light Remote Annunciator Opt

Remote Relay Panel (8 or 16) Opt

7-Day Programmable Exerciser Std

Special Applications Programmable PLC Std

RS-232 Communications Std

RS-485 Communications Std

All-Phase Sensing DVR Std

Full System Status Std

Utility Monitoring (Req. H-Transfer Switch) Std

2-Wire Start Compatible Std

Power Output (kW) Std

Power Factor Std

Reactive Power Std

All phase AC Voltage Std

All phase Currents Std

Oil Pressure Std

Coolant Temperature Std

Coolant Level Std

Fuel Pressure Std

Engine Speed Std

Battery Voltage Std

Frequency Std

Isochronous Governor Control Std

-40deg C - 70deg C Operation Std

Waterproof Plug-In Connectors Std

Audible Alarms and Shutdowns Std

Not in Auto (Flashing Light) Std

Auto/Off/Manual Switch Std

E-Stop (Red Mushroom-Type) Std

NFPA 110 Level I and II (Programmable) Std

Remote Communication - RS232 Std

Alarms (Programmable Tolerances, Pre-Alarms and Shutdowns)

Low Fuel Pressure Std

Oil Pressure (Pre-programmed Low Pressure Shutdown) Std

Coolant Temperature (Pre-programmed High Temp Shutdown) Std

Coolant Level (Pre-programmed Low Level Shutdown) Std

Engine Speed (Pre-programmed Overspeed Shutdown) Std

Voltage (Pre-programmed Overvoltage Shutdown) Std

Battery Voltage Std

OPEN SET

L W H WT dBA*

77 34 43 1163 83

LEVEL 1 ACOUSTIC ENCLOSURE

L W H WT dBA*

77 34 46 1414 60

5 of 5

*All measurements are approximate and *All measurements are approximate and for estimation purposes only. Sound levels measured at 23ft (7m) under normal operation and do not account for

ambient site conditions. estimation purposes only. Sound levels measured at 23ft (7m) and does not account for ambient site conditions.

QT025A dimensions, weights and sound levels

YOUR FACTORY RECOGNIZED GENERAC INDUSTRIAL DEALER

Generac Power Systems, Inc. • S45 W29290 HWY. 59, Waukesha, WI 53189 • generac.com

Specification characteristics may change without notice. Dimensions and weights are for preliminary purposes only. Please consult a Generac Power Systems Industrial Dealer for detailed installation drawings.

QT025A 25kW

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