Three-phase transformers with cooling channels


Datasheet as PDF
4 kVA up to 35 kVA, Threephase power dry transformers, Multiphase isolating transformers

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Polyphase transformers with cooling channelsThree phase transformers with block terminals Multiphase transformer


Fields of application


Isolating transformer conform to IEC/EN 61558-2-4 for general purpose, e.g. as safe isolation for devices according to the requirements of VDE 0700 / EN 60335, or as net distribution transformer for TN-net systems. Suitable for potential free nets, test systems and as power-ratio transformer.


Description


Three-phase transformer, built as an isolation transformer conform to EN 61558-2-4. Basically this type size can be built in any vector group. If there is no vector group given, we use Dyn5 as default (star point can have full load from the outside conductor).
Please consider the difference between outside conductor voltage and phase voltage to star point at the different vector groups.
For a safe and easy transport, the transformers have crane hooks at the upper side. The used block terminals are shock proof conform to VBG4. A vacuum varnishing makes a low hum-noise possible.


Table


Type

Type size

Sec
power

Efficiency

Dimensions in mm

Mounting holes

Copper
weight

Total
weight

b

l

l1

h

h1

f1

f2

f3

TEO

250/250/52 LK

4 kVA

96 %

305

115

124

260

320

94

224

10

14 kg

32 kg

TEO

250/250/65 LK

4,5 kVA

97 %

305

127

137

260

320

107

224

10

14 kg

34 kg

TEO

280/280/58 LK

5 kVA

97 %

342

130

140

288

350

110

248

10

14 kg

36 kg

TEO

300/300/63 LK

6,3 kVA

97 %

370

142

155

306

380

125

264

10

16 kg

45 kg

TEO

300/300/78 LK

8 kVA

97 %

370

157

170

306

380

140

264

10

17 kg

52 kg

TEO

350/350/73 LK

10 kVA

98 %

430

160

175

362

440

143

316

12

17 kg

62 kg

TEO

350/350/88 LK

12,5 kVA

98 %

430

175

190

362

440

158

316

12

19 kg

76 kg

TEO

350/350/103 LK

16 kVA

98 %

430

190

205

362

440

173

316

12

22 kg

92 kg

TEO

350/350/133 LK

20 kVA

98 %

430

220

235

362

440

203

316

12

24 kg

108 kg

TEO

400/400/83 LK

25 kVA

98 %

490

180

195

415

490

157

356

15

43 kg

114 kg

TEO

400/400/110 LK

30 kVA

98 %

490

220

222

415

490

184

356

15

47 kg

137 kg

TEO

400/400/140 LK

35 kVA

98 %

490

250

252

415

490

214

356

15

50 kg

165 kg

Technical changes and optimisation reserved. All details are guide values, variations are possible.

03/2012


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