Schneider Electric 58 TRX manual Three Phase Drive Isolation Transformers, Voltage Codes

Models: 58 TRX

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Class 8839 58M Enclosed AC Drives

Three Phase Drive Isolation Transformers

Drive Isolation transformers are designed for maximum benefit when applied to an AC drive.

In addition to the functional comparison of a line reactor, drive isolation transformers are normally used for one of the following reasons over a standard line reactor:

1.Match system voltage to drive rating.

2.Meet local or plant codes that require isolation.

3.Capable of correcting line voltage unbalance conditions commonly seen with open delta and corner grounded delta distribution systems.

4.Provides continuity of service for nuisance grounding.

5.Reduces drive induced currents in supply feeder ground and limit ground fault currents.

6.Isolate the electrical common mode noise generated in solid state controllers from the distribution system.

The Class 8839 58M Enclosed AC drives have a high fault withstand capability (up to 65,000 A or 100,000 A depending upon configuration). For these reasons, Square D does not require the use of a drive isolation transformer for isolation purposes unless the system requires one or more of the six functions listed above.

Three Phase 60 Hz Class B (IEEE 597-1983)

HP Rating

kVA

Catalog Number

 

 

 

1–5

7.5

7T( )HDIT

 

 

 

7.5

11

11T( )HDIT

 

 

 

10

15

15T( )HDIT

 

 

 

15

20

20T( )HDIT

 

 

 

20

27

27T( )HDIT

 

 

 

25

34

34T( )HDIT

 

 

 

30

40

40T( )HDIT

 

 

 

40

51

51T( )HDIT

 

 

 

50

63

63T( )HDIT

 

 

 

60

75

75T( )HDIT

 

 

 

75

93

93T( )HDIT

 

 

 

100

118

118T( )HDIT

 

 

 

125

145

145T( )HDIT

 

 

 

150

175

175T( )HDIT

 

 

 

200

220

220T( )HDIT

 

 

 

250

275

275T( )HDIT

 

 

 

300

330

330T( )HDIT

 

 

 

400

440

440T( )HDIT

 

 

 

450

550

550T( )HDIT

 

 

 

500

550

550T( )HDIT

 

 

 

Voltage Codes

 

 

Code

Primary

Secondary

 

 

 

142

230 Delta

230Y/132

 

 

 

143

230 Delta

460Y/265

 

 

 

144

460 Delta

230Y/132

 

 

 

145

460 Delta

460Y/265

 

 

 

146

575 Delta

230Y/132

 

 

 

147

575 Delta

460Y/265

 

 

 

Notes:

To complete catalog number: Select the voltage required from chart. Insert the voltage code number in place of the ( ) in the catalog number

162

© 2000–2003 Schneider Electric All Rights Reserved

09/2003

Page 162
Image 162
Schneider Electric 58 TRX manual Three Phase Drive Isolation Transformers, Three Phase 60 Hz Class B Ieee, Voltage Codes