AC Motors/Alternators

Ducommun's AC induction motors for downhole drilling and gas exploration are used worldwide by prime oil service companies. The performance of our highly reliable motors has continuously improved during the last 20 years to provide unsurpassed lifetimes in extremely harsh operating environments at high temperatures-high pressures (HTHP) up to 232°C (450°F) and 2068 bar (30,000 psi).

These motors are available from size 15 (OD 1.5") to size 38 (OD 3.8"). Our latest developments of high efficiency motors provide additional reliability for an increasingly demanding downhole drilling environment.

The success of high temperature/pressure motors frequently requires units with exceptionally long and thin motor designs from 1.5" dia. x 9" long to 3.7" dia. x 14" long without gear heads. Ducommun has invested to acquire the required tooling and expertise to routinely meet these requirements.

Features & Benefits
Oil Exploration for High Temp (260°C)
High Efficiency
Optional with Gear Head
Single & 3-Phase
High Temperatures-High Pressures (HTHP) Up to 232°C (450°F) and 2068 Bar (30,000 psi) Ambient
    Temperature
High Efficiency Design to Support Lowest Temperature Rise at Downhole Operation
Single Phase AC Motor
High Starting Torque
115 to 600 Volts, 60-400 Hz
Qualified while immersed in Hydraulic Oil Per MIL-H-83282C

Applications & End Use
Oil & Gas Exploration Tools
Rotary Steering Systems (RSS)
Measurement While Drilling (MWD)
Logging While Drilling (LWD)
Tractor Tools
Completion Tools
Formation Testing Tools
Hydraulic Pumps
Actuators

Options
Designed with Gear Heads
Designs with Feedback Devices
3 Phase Sesigns
Custom Designs

Outline Drawings
Click Here to Download

Part Number Configuration
The following part number configurations are based on current configurations:

Specifications

Series
Rated Power (hp)
Rated Speed (rpm)
Rated Torque (oz-iin)
Voltage (V)
 Reversible 
(pps)
Frequency (Hz)
 Rated Current (A)
Housing OD (inch)
Housing Length (inch)
Gear Ratio
15HA5
 1/35
 3100
 7
 160
 60
 0.9
 1.5
 7.5
15HA6
 1/16
 6336
 9.5
 250
 120
 0.5
 1.5
 9.4
15HG3
 1/16
 3520
 17.5
 140
 120
 0.75
 1.5
 13
 1.84 to 1
15HG4
 1/16
 3520
 17.5
 250
 120
 0.5
 1.5
 14
 1.84 to 1
18HA6
 1/25
 2800
 16
 115-150
 60
 0.8
 1.8
 4.7
18HA7
 1/25
 2800
 16
 220-260
 60
 0.4
 1.8
 4.7
18HA8
 1/25
 2800
 16
 400
 60
 0.3
 1.8
 4.7
18HA9
 1/7
 2800
 54
 400
 60
 1
 1.8
 15.7
18HA10
 1/6
 2800
 60
 240-400
 60
 1.7
 1.8
 10.7
18HA11
 1/25
 2800
 16
 115-150
 60
 0.8
 1.8
 4.7
20HG1
 1/35
 360
 80
 150
 60
 0.6
 2
 4.8
 7.2 to 1
20HG2
 1/35
 600
 48
 150
 60
 0.5
 2
 4.8
 4.32 to 1
20HG3
 1/20
 1200
 48
 150
 60
 0.5
 2
 4.8
 2.16 to 1
20HG5
 1/35
 12
 2400
 115
 60
 0.75
 2
 8.2
 216 to 1
25HA2
 1/25
 1400
 28
 115
 60
 0.8
 2.5
 4.3
25HA5
 1/8
 3150
 38
 200
 60
 0.75
 2.5
 4.3
25HA6
 1/8
 3150
 38
 200
 60
 0.75
 2.5
 9.5
25HA7
 1/25
 1400
 28
 115
 60
 0.65
 2.5
 4.3
25HA8
 1/25
 1400
 28
 250
 60
 0.35
 2.5
 4.3
25HA10
 1/4
 3000
 85
 400
 60
 1.5
 2.5
 10
33HA4
 1/3
 2840
 116
 400
 60
 1.1
 3.3
 8.4
33HA5
 1/4
 3150
 80
 400
 60
 1
 3.3
 8.4
33HA6
 1/6
 3000
 54
 600
 60
 0.4
 3.3
 6.5
33HA7
 1/3
 3150
 125
 400
 60
 1.1
 3.3
 9.8
33HA8
 1/4
 3150
 80
 40
 60
 1
 3.3
 8.5
33HA9
 1/16
 3400
 21
 115
 60
 1.5
 3.3
 8.4
33HA10
 1/3
 2840
 116
 400
 60
 1.1
 3.3
 8.4
33HAA11  
 1/4
 3150
 80
 400
 60
 1
 3.3
 8.4
33HA12
 1/8
 3000
 40
 400
 60
 0.5
 3.3
 7
33HA13
 1/4
 3150
 80
 400
 60
 1
 3.3
 8.4
33HA14
 1
 3000
 340
 400
 60
 3
 3.3
 10.4
33HA15
 1/3
 3000
 120
 400
 60
 1.7
 3.3
 8.4
35HAx
 1
 3000
 320
 600
 60
 2
 3.5
 10.4
37HAx
 1.5
 3300
 480
 600
 60
 3
 3.7
 13.8
38HAx
 1/3
 3150
 135
 400
 60
 1.1
 3.8
 9.5

* Schematic has been modified to protect proprietary information. All information provided above is subject to change.

 

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