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Autogen Static-Type Phase Converter


Our patented solid-state 3-phase motor starting relay insures perfect motor starts every time.  The Autogen CD3 Series Converters will operate moderately-loaded 3-phase motors on single phase power under the following load situations:


70% of motor hp for continuous duty
95% of motor hp for intermittent duty
(intermittent duty is defined as 15 minutes or less, with an equal motor-cooling period)

The General Application Guide will help you determine the suitability of an Autogen Model to your particular machine.

Select a converter with a hp range that fits the 3-phase motor you want to operate.  Smaller motors that the converter’s range may be operated only while a motor in the converter’s range is operating.

Special Duty—for air compressors, hoists and other high-inertia loads of short duration:  Select the largest  CD3 that will operate your motor hp.  (Example: A 5hp air compressor uses the CD 14—rather than the CD 13—converter.)  Do not oversize a CD3 converter expecting to get more hp.  (Example: Do not use a CD 17 for a 10 hp motor.)

Our Autogen is a capacitor-start, capacitor-run device.  Even though ours is the best on the market, no static converter will produce the quality of power that our Rotary converters provide.  A motor operated at or near full-load continuously on any static converter will run hot and burn up.  A rotary converter, however will allow continuous full-load motor operation.  If economics keeps you from buying a rotary phase converter, an  idle 3-phase motor may be operated with the Autogen to increase power with little additional electrical cost.  This idea was the “grandfather” of the modern rotary converter, and still works well on many machines.

The Idle motor acts as an “electrical flywheel” to carry heavily loaded motors along, and also permits operation of small motors on a large static converter.  It works best on GWM’s converters, which include motor-run capacitors to boost the idle-motor’s performance and reduce operating current.

The idle motor method should not be used on CNC, modern high-efficiency motors or other specialized equipment.  Consult Smith Electric Motorworks if you have questions about your application.

All Autogen static converters feature:

Model

Motor

Ship

Encl.


Model

Motor

Ship

Encl.


HP

Wt, Lbs

HP

Wt, Lbs

30-Minute Installation

CD 10

.5-1.5

3

A1


CD 18

20-28

31

R3

Full-Time 3-Wire Power

CD 12

1-4

4

A1


CD 19

28-38

39

R4

Heavy-Duty Start Circuit

CD 13

2-5

4

A1


CD 20

38-48

62

R5

High Starting Torque

CD 14

3-7

5

A1


CD 21

48-58

80

R6

Operates on 190-250 vac, 50-60Hz

CD 15

6-10

7

A1


CD 22

58-70

91

R6

480 vac available

CD 16

8-14

14

A1


CD 23

70-85

115

R7

NEMA 3R enclosures available

CD 17

12-19

22

R2


CD 24

85-100

160

2-R6