Guardian Technologies QT048 Manual De Usuario

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OPERATING DATA
QT048
RATING:  All three phase units are rated at 0.8 power factor. All single phase units are rated at 1.0 power factor. STANDBY RATING: Standby ratings
apply to installations served by a reliable utility source. The standby rating is applicable to varying loads for the duration of a power outage. There is
no overload capability for this rating. Ratings are in accordance with ISO-3046-1, BS5514, and DIN6271. Maximum wattage and current are subject
to and limited by such factors as fuel Btu content, ambient temperature, altitude, engine power and condition. Design and specifications are subject
to change without notice.
KW rating is based on LPG Fuel and may derate with natural gas.
QT048
kW RATING
48
ENGINE SIZE
4.2 Liter V6
GENERATOR OUTPUT VOLTAGE/KW - 60Hz
kW - LP
Amps
kW - NG
Amps
CB Size
120/208V, 3-phase, 0.8 pf
48
166
46
160
175
120/240V, 3-phase, 0.8 pf
48
144
46
138
150
277/480V, 3-phase, 0.8 pf
48
72
46
69
80
GENERATOR LOCKED ROTOR KVA 
 AVAILABLE @ VOLTAGE DIP OF 35%
Single phase or 208 3-phase
100
480V 3-phase
110
ENGINE FUEL CONSUMPTION 
(Natural Gas) (Propane)
Natural Gas
Propane 
(ft
3
/hr.)
(gal/hr.)
cu ft/hr
Exercise cycle
88
0.94
34.4
25% of rated load
205
2.23
81
50% of rated load
370
4.03
147
75% of rated load
516
5.62
204
100% of rated load
661
7.20
261
ENGINE COOLING
Air flow
(inlet air including alternator and combustion air)
ft
3
/min.
2,460
System coolant capacity
US gal.
3.0
Heat rejection to coolant
BTU/hr.
165,000
Max. operating air temp. on radiator
°C (°F)
60 (150)
Max. ambient temperature
°C (°F)
50 (140)
COMBUSTION AIR REQUIREMENTS
Flow at rated power 60 Hz
cfm
235
SOUND EMISSIONS IN DBA
Exercising at 7 meters
60
Normal operation at 7 meters
65
EXHAUST
Exhaust flow at rated output 60 Hz
cfm
395
Exhaust temp. at muffler outlet
°F
1100
ENGINE PARAMETERS
Rated synchronous RPM
60 Hz
1800
HP at rated KW
60 Hz
75
POWER ADJUSTMENT FOR AMBIENT CONDITIONS
Temperature Deration
3% for every 10 °C above - °C
25
1.65% for every 10 °F above - °F
77
Altitude Deration
1% for every 100 m above - m
183
3% for every 1000 ft. above - ft.
600