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KTA50 Land-Based Drilling
Power Module.

Cummins Land-Based Drilling Power Modules are
designed and tested based on oil-field customer
requirements to provide optimum performance,
reliability and versatility. These modules deliver
world-class uptime and a low total cost of
ownership through high fuel efficiency and long
life-to-overhaul.
The entire power module is designed, developed,
assembled and tested at the Cummins Oil and
Gas Center of Excellence, and is delivered with
the full force of Cummins behind it. This means
that the entire power module is fully supported
with parts and service available worldwide. Drilling
contractors can expect seamless, consistent
support wherever the rig operates.
Features.
Cummins diesel engine – The legendary KTA50
four-stroke diesel engine provides reliable power,
low emissions and fast response to load changes.
Alternator – Form-wound stator, designed, tested
and sized for reliable drill rig service.
Control system – Engine monitoring and
shutdown functions with easy-to-read analog
gauges for critical parameters, and a digital
display for alarm and status messages.
Warranty and service – Backed by a standard
Cummins factory warranty that is valid globally
everywhere Cummins-authorized service is
available through our network of over 600
Cummins distributors.
Custom Options.
Standard specifications and options are shown.
The Cummins Oil and Gas Center of Excellence
can provide custom factory packages.
Ratings
Model KTA50-DPM
Frequency 50/60 Hz
Voltage 600 V
Speed 1500/1200 RPM
Engine Power 1750/1470 HP (1305-1096 kWe)
Emissions Noncertified
Alternator Rating 1900/1750 kVA (1330/1225 kWe)
Drilling Power Module output varies with cooling system.
General Specifications
Engine Type Cummins KTA50 V-16, Four-Stroke Diesel
Bore 159 mm
Stroke 159 mm
Displacement 50.3 L
Aspiration Turbocharged and Aftercooled
Governor Electronically Actuated Mechanical Governor
Cooling System Horizontal or Remote Vertical Discharge
Weight w/o Radiator 29,500 lb (13,381 kg)
Lube Oil Capacity 72 gal (273 liters)
Base Design Three-Point Mounting
Alternator Rotor Design Two-Bearing
Alternator Insulation Class H
KTA50 Land-Based
Drilling Power Module.

Standard Equipment.
Air Intake System
n Factory-installed heavy-duty air cleaner
n Factory-installed air inlet shutoff valve
Control System
n Package-mounted control-and-monitoring
system provides warning or engine shutdown
protection for the power module
n Emergency push-button engine stop
n Control panel features include:
– Hour meter
– Engine speed
– Oil pressure
– Exhaust temperatures (left and right banks)
– Water temperatures
– Air cleaner restriction warning
– Warning, shutdown and fault history
information
Fuel System
n Reliable and robust Cummins PT®
fuel system
n Skid-mounted fuel filters
n Pre-filtering system available
Lube Oil System
n High-capacity structural oil pan
n Secondary bypass oil filter
Cooling System
n Dual core base-mounted or generator
set-mounted radiator
n Horizontal and remote vertical discharge
systems available
n Radiator options available for up to 55°C
n Thermostat-controlled outlets
Starting System
n Air starter – Ingersoll-Rand®
(90-150 psi)
Mounting Arrangement
n Three-point-mounted to sub-base
n Isolation pads at mounting points
n Lift provisions on base
Alternator
n Two-bearing, 600 V, three-phase, 0.7 pf,
six-wire, WYE-connected
n Brushless type
n Standard anti-condensation heater
n Standard winding and bearing RTDs
n Custom alternator specification available
upon request

Cummins Inc.
Box 3005
Columbus, IN 47202-3005
U.S.A.
Phone: 1-800-DIESELS™ (1-800-343-7357)
Internet: cumminsengines.com
Twitter.com/CumminsEngines
YouTube.com/CumminsEngines
Bulletin 4087183 Printed in U.S.A. Rev. 3/15
©2015 Cummins Inc.
This outline drawing is for reference only. See respective model
data sheet for specific model outline drawing number. Do not use
for installation design.
Cummins is a pioneer in product improvement. Thus, specifications
may change without notice. Illustrations may include optional
equipment.
Dimensions And Weights
(Without Cooling System)
Model Dim A Dim B Dim C Set dry Set wet
mm (in) mm (in) mm (in) weight* weight*
kg (lb) kg (lb)
KTA50 5,159 2,040 1,756 13,154 14,061
DPM (203.1) (80.3) (69.1) (29,000) (31,000)
Note: Weights represent a set of standard features. See outline
drawings for weights of other configurations.
Alternator Specifications
Design Brushless, Four-Pole, Revolving Field
Rotor Two-Bearing
Insulation System Class H
Temperature Rise 80ºC Over 50ºC
Alternator Cooling Direct-Drive Centrifugal Blower Fan
Efficiency @ 0.7 pf 95.45
Subtransient Reactance (Xd, Unsaturated = 0.105 p.u.)
Subtransient Reactance (Xd, Saturated = 0.104 p.u.)
Engine Specifications
Engine Manufacturer Cummins Inc.
Model KTA50
Design Four-Stroke, V-Block,
Turbocharged
and Aftercooled
Cylinder Block Configuration Cast Iron, 60ºV, 16-Cylinder
Aspiration Turbocharged and Low-
Temperature Aftercooled
Gross Engine Power Output 1750/1470 HP (1305/1096 kWe)
Displacement 50.3 liter (3,087 In.3
)
Injection System Cummins PT Fuel System
Engine Speed 1500/1200 RPM
Cooling
Ambient Design Standard 50°C, Optional 55°C
Standard specifications and options are shown. The Cummins
Oil and Gas Center of Excellence can provide custom factory
packages.
Technical Data
Frequency 50/60 Hz
Rating 1900/1750 kVA (1330/1225 kWe)
Power Factor 0.70
Voltage (Line-Neutral/Line-Line) 347/600 V
Current 1828/1605 A
Poles 4/6
Speed 1500/1200 RPM
Overspeed Limit (60 Seconds) 125%
Enclosure IP23 With Air Inlet Filter

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