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Your contact: +49 - 212 8804-0 • info@reo.de

DRTEU

Three-phase variable column-type transformers (auto windings, double-brush system)

DRTEU

Unique Selling Point


  • Closely stepped adjusting of output voltages
  • Low-loss cores
  • Vacuum impregnated windings
  • Windings virtually maintenance free
  • UL-listed materials
  • Available in IP 00 and IP 20
  • Wide range of accessories

Description


REO columns variable transformers with double brush system together with REO transformers are the perfect solution - the double performance is possible .

The waveform of the sine wave is preserved - like that,  EMC problems cannot occur over the entire operating range of 0 - 1000A. 
All products in the series come with UL - listed materials .

The REO construction enables easy handling of the carbon rolls and the spindle - the copper-bevel gear allows a hysteresis-free adjustment of the output voltage even at high adjustment speed of the drive motor. Thus REO variable column transformers are perfect for high performance adjustment .

REO-column type variable transformers conform to EN 61558-2-14

 

Technical Data


  • Input voltage : 400 V
  • Output voltage : 400 V
  • Output Current : 8,7 - 208 A

Options

  • Protection IP 20 - IP 54
  • Motor drive, digital/analog
  • Actuating speed 30 sek
  • REO Power Former (Control unit for supplies)
  • Versatile accessories : e.g. Motor control NLR 7000
  • Compensation winding

 

Circuit drawing

 

 

Your contact: +49 - 212 8804-0 • info@reo.de

DRTEU

Three-phase variable column-type transformers (auto windings, double-brush system)

Technical data

Star connected (Delta connection on request)

kVA

3 x A

Copper

ca. kg

Tubes

Weight kg

6,0

8,7

9,0

3

85

7,5

11,0

11,5

3

85

9,0

13,0

14,0

3

85

10,5

15,0

16,0

3

135

12,0

17,5

20,0

3

135

15,0

21,5

22,5

3

98

18,0

26,0

27,5

3

98

21,0

30,5

34,0

3

98

24,0

35,0

40,0

3

128

27,0

39,0

45,5

3

128

30,0

43,5

55,0

3

128

33,0

48,0

61,5

3

145

36,0

52,2

68,0

3

145

39,0

56,5

65,0

6

210

42,0

61,0

68,0

6

210

48,0

69,5

80,0

6

276

54,0

78,0

91,0

6

276

60,0

87,0

110,0

6

276

66,0

96,0

123,0

6

316

72,0

104,0

136,0

6

316

81,0

117,0

137,0

9

400

90,0

130,0

160,0

9

400

99,0

143,0

184,5

9

400

108,0

156,0

204,0

9

400

114,0

165,0

190,0

12

525

120,0

174,0

220,0

12

525

132,0

191,0

246,0

12

595

144,0

208,0

272,0

12

595

Your contact: +49 - 212 8804-0 • info@reo.de

DRTEU

Three-phase variable column-type transformers (auto windings, double-brush system)

Dimensions

kVA

A

B

H

Weight 
kg

6,0

500

330

225

85

7,5

500

330

225

85

9,0

500

330

225

85

10,5

550

330

235

135

12,0

550

330

235

135

15,0

635

365

235

98

18,0

635

365

235

98

21,0

635

365

235

98

24,0

720

420

250

128

27,0

720

420

250

128

30,0

720

420

250

128

33,0

765

450

255

145

36,0

765

450

255

145

39,0

660

365

435

210

42,0

660

365

435

210

48,0

735

420

460

276

54,0

735

420

460

276

60,0

735

420

460

276

66,0

780

450

470

316

72,0

780

450

470

316

81,0

735

420

705

400

90,0

735

420

705

400

99,0

780

450

725

400

108,0

780

450

725

400

114,0

735

595

779

525

120,0

735

595

779

525

132,0

780

595

779

595

144,0

780

595

779

595

 

 

Your contact: +49 - 212 8804-0 • info@reo.de

DRTEU

Three-phase variable column-type transformers (auto windings, double-brush system)

Overload factor

Faktor kK relative to operation time t.

 

Maintenance:

Contact carbon rolls are furnished with hard-silvered axes. Threaded spindles run  in self-lubricating bearings and are almost maintenance-free.

Seized or worn carbon rolls must be replaced immediately.

From time to time the contact surfaces of the windings should be cleaned with a stiff brush to remove adhered dirt (dust and carbon abrasion).

Maintenance manual on request. 

Accessories

  • Single or three phase asynchronous motor with anchor stop brake
  • Motor protection switch
  • different setting times ( only limited by gear changes possible ! )
  • Slipping clutch at motor drive
  • additional limit switches ( 1 SPDT ) , wired to terminals , when used in air
  • additional limit switch ( max . 6 pieces)
  • Mounting a 10 - Wendelpotentiometers
  • ( 1 ohm , 2 ohm or 5 kOhm , eg for feedback of pantographs representation Wiring diagram 17 ( at Engine OMC)
  • ( Single-phase Asynchronomotor with wired limit switch ) Wiring diagram 18 ( at Engine OMC)
  • ( Single-phase induction motor with reversing contactor ) Wiring diagram 19 ( at Engine Mo ) ( three-phase asynchronous motor with reversing contactor )