Cat® C7.
1
DIESEL GENERATOR SETS
Standby & Prime: 50 Hz & 60 Hz Cat® C7.1 In-line 6, 4-cycle
Engine Model
diesel
Bore / Stroke mm (in) 105.0 (4.1) / 135.0 (5.3)
Displacement L (in2) 7.0 (427.8)
Compression Ratio 16.0:1
Turbocharged Air To Air
Aspiration
Charge Cooled
Fuel Injection System Direct Injection
Governor Mechanical
Image shown might not reflect actual configuration.
Model Hz Standby Prime Emission Strategy
50 200.0 kVA 160.0 kW 180.0 kVA 144.0 kW
DE218AE0 Non Certified Emissions
60 217.5 kVA 174.0 kW 196.3 kVA, 157.0 kW
PACKAGE PERFORMANCE
Technical Data 50 Hz 60 Hz
Standby Prime Standby Prime
Engine Speed: RPM 1500 1800
Gross Engine Power: kW (hp) 185.5 (249.0) 167.6 (225.0) 199.7 (268.0) 180.5 (242.0)
BMEP: kPa (psi) 2116.0 (306.9) 1912.0 (277.3) 1898.0 (275.3) 1715.0 (248.8)
Regenerative Power: kW 8.1 9.0
Fuel System1
110% load: l/hr (US gal/hr) N/A 43.3 (11.4) N/A 48.7 (12.9)
100% load: l/hr (US gal/hr) 43.3 (11.4) 40.1 (10.6) 48.7 (12.9) 45.2 (11.9)
75% load: l/hr (US gal/hr) 33.6 (8.9) 31.0 (8.2) 38.3 (10.1) 36.0 (9.5)
50% load: l/hr (US gal/hr) 23.1 (6.1) 21.2 (5.6) 29.1 (7.7) 27.7 (7.3)
Fuel Filter Type Replaceable Element Replaceable Element
Recommended Fuel Class A2 Diesel or BSEN590 Class A2 Diesel or BSEN590
Air System
Combustion Air Flow: m³/min (cfm) 11.7 (413) 11.3 (399) 13.4 (473) 13.3 (470)
Air Filter Type Paper Element Paper Element
Max. Combustion Air intake restriction: kPa (in H2O) 8.0 (32.1) 8.0 (32.1)
Radiator Cooling Air flow: m³/min (cfm) 309.0 (10912) 385.0 (13596)
External Restriction to Cooling Air Flow: Pa (in H2O) 125 (0.5) 125 (0.5)
Cooling System 2
Heat Rejected to Water & Lube Oil: kW (Btu/min) 79.8 (4538) 72.8 (4140) 89.5 (5090) 82.2 (4675)
Heat Radiated from Engine and Alternator: kW (Btu/min) 29.9 (1700) 25.9 (1473 31.7 (1803) 27.8 (1581)
Cooling System Capacity: L (US gal) 27.0 (7.1) 27.0 (7.1)
Water Pump Type Centrifugal Centrifugal
Radiator Fan Load: kW (hp) 6.3 (8.5) 14.7 (19.7)
LEHE20302-00 Page 1 of 3
®
Cat C7.1
DIESEL GENERATOR SETS
Exhaust System 50 Hz 60 Hz
Standby Prime Standby Prime
Exhaust Gas Flow: m³/min (cfm) 31.0 (1095) 29.4 (1038) 34.8 (1229) 33.4 (1180)
Exhaust Gas Temperature: °C (°F) 498 (928) 498 (928) 509 (948) 509 (948)
Silencer Type Industrial Industrial
Silencer Model & Quantity: EXSY1 (1) EXSY1 (1)
Pressure Drop Across Silencer System: kPa (in Hg) 0.24 (0.070) 0.30 (0.087)
Silencer Noise Reduction Level: dB 15 13
Max. Allowable Back Pressure: kPa (in. Hg) 10.0 (3.0) 10.0 (3.0)
Generator Technical Data
Physical Data Operating Data
Frame Model GTA 252AE37 Overspeed: RPM 2250
No. of Bearings 1 Voltage Regulation: (steady state) +/- 0.5%
Wires 12 Wave Form NEMA = TIF: 50
IP Rating & Insulation Class IP21 Wave Form IEC = THF: 2.0%
Winding Pitch-Code 2/3 - NA Total Harmonic Content LL/LN: 5.0%
Suppression is in line with European
Excitation AUX COIL Radio Interference:
Standard EN61000-6
AVR Model A-OPT-04E Radiant Heat: kW (Btu/min) 16.2 (921) 16.0 (910)
Generator Performance Data3 50 Hz 60 Hz
Voltage 380/220V 208/120V 220/127V
Motor Starting Capability*: kVA 512 507 561
Short Circuit Capacity: % 300 300 300
Reactances: Per Unit
Xd 2.250 2.650 2.240
X’d 0.130 0.143 0.125
X”d 0.095 0.104 0.091
Capacities
50 Hz 60 Hz
Prime Standby Prime Standby
Voltages Voltages
kVA kW kVA kW kVA kW kVA kW
220/127V 196.3 157.0 217.5 174.0
380/220V 180.0 144.0 200.0 160.0
208/120V 196.3 157.0 217.5 174.0
LEHE20302-00 Page 2 of 3
®
Cat C7.1
DIESEL GENERATOR SETS
WEIGHTS & DIMENSIONS
A B
Note: General configuration not to be used for installation. See general dimension drawings for detail.
Dim “A” Dim “B” Dim “C” Dry Weight
mm (in) mm (in) mm (in) kg (lb)
2510 (98.8) 1010 (39.8) 1640 (64.6) 1563 (3446)
NOTES: DOCUMENTS:
1
ased on diesel fuel with a specific gravity of 0.85 and
B A full set of operation and maintenance manuals and
conforming to BS2869, Class A2. circuit wiring diagrams.
2
Cooling system designed to operate in ambient
STANDARD REFERENCE CONDITIONS:
conditions up to 50°C (122°F). Contact your local Cat
dealer for power ratings at specific site conditions. Note: Standard reference conditions 25°C (77°F) air
inlet temp, 100m (328ft) A.S.L. 30% relative humidity.
3
eactances shown are applicable to prime ratings.
R
Fuel consumption data at full load with diesel fuel with
*Based on 30% voltage dip at 0.6 power factor
specific gravity of 0.85 and conforming to BS2869:
1998, Class A2.
DEFINITIONS:
STANDBY: These ratings are applicable for supplying QUALITY STANDARDS:
continuous electrical power (at variable load) in the
The equipment meets the following standards: BS5000,
event of a utility power failure. No overload is permitted
ISO 8528, ISO 3046, IEC 60034, NEMA MG-1.22.
on these ratings. The alternator on this model is peak
continuous rated (as defined in ISO 8528-3).
WARRANTY:
PRIME: These ratings are applicable for supplying
All prime equipment carries a one year manufacturer’s
continuous electrical power (at variable load) in lieu of
warranty. Standby equipment, limited to 500 running
commercially purchased power. There is no limitation to
hours per year, has a two-year manufacturer’s warranty.
the annual hours of operation and this model can supply
For details on warranty cover please contact your local
10% overload power for 1 hour in 12 hours.
CAT Dealer.
www.Cat.com/electricpower
All rights reserved.
Materials and specifications are subject to change without notice.The International System of Units (SI) is used in this publication.
© 2021 Caterpillar. All Rights Reserved. CAT, CATERPILLAR, LET’S DO THE WORK, their respective logos, “Caterpillar Corporate Yellow”,
the “Power Edge” and Cat “Modern Hex” trade dress as well as corporate and product identity used herein, are trademarks of Caterpillar and
LEHE20302-00 (03/21) may not be used without permission
