Dongan Electric Manufacturing Motor Drive Isolation Transformers Catalog Page

Motor Drive Isolation Transformers

Dongan® Motor Drive Isolation Transformers are

specically designed to meet the requirements of

SCR controlled variable speed motor drives. They
are ruggedly constructed to withstand the high
mechanical forces associated with SCR drive duty
cycles. The double‑wound construction isolates the
line from most SCR generated voltage spikes and
transient feedback. These transformers also assist
in reducing some types of line transients that can

cause SCR misring.

Features

• Three Phase 3 - 145 kVA.

• Electrostatic shield between windings.

• Vibration dampening pads provide quiet

operation.

• Wall Mounting brackets are available for sizes

11 kVA through 75 kVA (see page 29).

• Ground studs provided.

• Core and coil and nonstandard designs are

available by consulting the factory or your
Dongan

• NEMA Type 3R, ventilated, wall mount

®

Representative.

enclosure. No extra rainshields required for
outdoor use.

• 11 - 145 kVA are aluminum wound and

equipped with a UL 220°C insulation system.

11 - 145 kVA

General Information

Delta Pri. 230 230 460 460 575 575

Wye Sec. 230Y/133 460Y/266 230Y/133 460Y/266 230Y/133 460Y/266

kVA

Cap.

3 2

6 3

7.5 5

11 7.5

14 10

20 15

27 20

34 25

40 30

51 40

63 50

75 60

93 75

118 100

145 125

Motor Drive transformers are exempt from the US DOE TP1 requirements. However they do not meet Canadian C802.22 energy requirements. If this is

required you must order a 43‑ catalog number.

Motor

HP

Catalog
Number

63-0103SH 63-0403SH 63-0503SH 63-0703SH 63-0803SH 63-0903SH

63-0106SH 63-0406SH 63-0506SH 63-0706SH 63-0806SH 63-0906SH

63-0107SH 63-0407SH 63-0507SH 63-0707SH 63-0807SH 63-0907SH

63-2111SH 63-2411SH 63-2511SH 63-2711SH 63-2811SH 63-2911SH

63-2114SH 63-2414SH 63-2514SH 63-2714SH 63-2814SH 63-2914SH

63-2120SH 63-2420SH 63-2520SH 63-2720SH 63-2820SH 63-2920SH

63-2127SH 63-2427SH 63-2527SH 63-2727SH 63-2827SH 63-2927SH

63-2134SH 63-2434SH 63-2534SH 63-2734SH 63-2834SH 63-2934SH

63-2140SH 63-2440SH 63-2540SH 63-2740SH 63-2840SH 63-2940SH

63-2151SH 63-2451SH 63-2551SH 63-2751SH 63-2851SH 63-2951SH

63-2163SH 63-2463SH 63-2563SH 63-2763SH 63-2863SH 63-2963SH

63-2175SH 63-2475SH 63-2575SH 63-2775SH 63-2875SH 63-2975SH

63-2193SH 63-2493SH 63-2593SH 63-2793SH 63-2893SH 63-2993SH

63-21118SH 63-24118SH 63-25118SH 63-27118SH 63-28118SH 63-29118SH

63-21145SH 63-24145SH 63-25145SH 63-27145SH 63-28145SH 63-29145SH

Catalog
Number

Catalog
Number

Catalog
Number

Catalog
Number

Catalog
Number

Taps

Weight

(lbs)

0 70

0 136

0 185

2 225

2 245

2 275

2 290

2 415

2 440

2 500

2 560

2 580

2 1000

2 1100

2 1200

31

Motor Drive Isolation Transformers

Dimensions

Physical Mounting

MotorHPHeightAWidthBDepth

C D E F

3 2 11.50 15.50 7.75 6.31 14.00 0.437 WM 0 1

6 3 14.00 18.50 9.00 8.50 17.00 0.437 WM 0 1

7.5 5 17.50 17.00 10.00 11.50 15.50 0.562 WM 0 1

11 7.5 23.50 18.87 18.50 13.00 16.87 0.437 FM 2 2

14 10 23.50 18.87 18.50 13.00 16.87 0.437 FM 2 2

20 15 29.00 24.25 20.87 15.37 22.25 0.437 FM 2 2

27 20 29.00 24.25 20.87 15.37 22.25 0.437 FM 2 2

34 25 29.00 24.25 20.87 15.37 22.25 0.437 FM 2 2

40 30 29.00 24.25 20.87 15.37 22.25 0.437 FM 2 2

51 40 32.00 27.25 26.25 20.75 25.25 0.562 FM 2 2

63 50 32.00 27.25 26.25 20.75 25.25 0.562 FM 2 2

75 60 32.00 27.25 26.25 20.75 25.25 0.562 FM 2 2

93 75 41.00 34.25 26.75 21.25 32.25 0.562 FM 2 2

118 100 41.00 34.25 26.75 21.25 32.25 0.562 FM 2 2

145 125 41.00 34.25 26.75 21.25 32.25 0.562 FM 2 2

*WM = WALL MOUNT FM = FLOOR MOUNT

Mtg

Type*

Dwg.

Taps

No.kVA

Drawing 1

Wall Mount - Ventilated - NEMA Type 3R

3 - 7.5 kVA

Drawing 2

11 - 145 kVA

Floor Mount - Ventilated - NEMA Type 3R

SUPPLY VOLTAGE LOAD VOLTAGESUPPLY VOLTAGE LOAD VOLTAGE

Diagram 1 (3 - 7.5 kVA)

Diagram 2 (11 - 145 kVA)

32 Dongan

®

Electric Manufacturing Company