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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