Three-phase transformers 40 kVA up to 480 kVA


Datasheet as PDF
Three-phase transformers 40 kVA up to 480 kVA, polyphase transformer with cooling channels, three-phase power dry transformer, three- phase isolating transformers

ceclass_HEN61558-o-sm61558_okf-sm


Three-phase transformers


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

Iron
losses

Copper
losses

Dimensions in mm

Copper
weight

Total
weight

b

l

l1

h

h1

f1

f2

f3

TEO

EI 500/500/100

40 kVA

97 %

330 W

850 W

600

192

180

500

570

150

450

18

63 kg

205 kg

TEO

EI 500/500/125

50 kVA

97 %

360 W

1140 W

600

202

205

500

570

175

450

18

66 kg

246 kg

TEO

EI 500/500/150

63 kVA

97 %

510 W

1200 W

600

252

230

500

570

200

450

18

84 kg

298 kg

TEO

EI 500/500/175

80 kVA

97,8 %

525 W

1250 W

600

265

255

500

570

225

450

18

110 kg

360 kg

TEO

EI 500/500/200

100 kVA

98 %

600 W

1350 W

600

292

280

500

570

250

450

18

145 kg

433 kg

TEO

EI 600/600/150

125 kVA

98 %

1061 W

1700 W

720

250

230

610

680

200

600

18

214 kg

544 kg

TEO

EI 600/600/200

160 kVA

98 %

1200 W

2000 W

720

300

280

610

680

250

600

18

217 kg

627 kg

TEO

EI 700/700/200

225 kVA

98 %

1400 W

3100 W

840

440

440

750

800

250

600

18

340 kg

890 kg

TEO

EI 800/720/160

300 kVA

98 %

1800 W

4200 W

1100

700

-

770

-

280

730

11

535 kg

1312 kg

TEO

EI 800/800/400

480 kVA

99 %

-

-

1100

700

-

850

-

-

-

-

621 kg

1995 kg

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

12/2015


Alternative table: energy-efficient transformers


Type

Type size

Sec
power

Efficiency

Iron
losses

Copper
losses

Dimensions in mm

Copper
weight

Total
weight

b

l

l1

h

h1

f1

f2

f3

TEO

S3U 500/500/100

63 kVA

98,1 %

34 W

1165 W

600

252

230

500

570

200

450

18

116 kg

333 kg

TEO

S3U 500/500/175

80 kVA

98,5 %

41 W

1200 W

600

265

255

500

570

225

450

18

140 kg

390 kg

TEO

S3U 500/500/200

100 kVA

98,6 %

45 W

1260 W

600

292

280

500

570

250

450

18

197 kg

485 kg

TEO

S3U 600/600/150

125 kVA

98,6 %

49 W

1820 W

720

250

230

610

680

200

600

18

257 kg

587 kg

TEO

S3U 600/600/200

160 kVA

98,6 %

65 W

2250 W

720

300

280

610

680

250

600

18

302 kg

717 kg

TEO

S3U 700/700/200

200 kVA

98,6 %

89 W

2650 W

840

440

440

750

800

250

600

18

333 kg

883 kg

TEO

S3U 800/800/200

300 kVA

98,6 %

115 W

4013 W

1100

740

-

850

-

-

-

-

550 kg

1327 kg

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

08/2013


Reduction of idle power due to usage of energy-efficient transformers


 

Transformer size

Power [kVA]

Idle power [Var]

Default/Amorphous

Amorphous core

S3U 500/500/150

63

1405

2,6

Default core

EI 500/500/150

63

3690

 

 

 

 

 

Amorphous core

S3U 500/500/175

80

2890

2,2

Default core

EI 500/500/175

80

6226

 

 

 

 

 

Amorphous core

S3U 500/500/200

95

3950

2,4

Default core

EI 500/500/200

100

7025

 

 

 

 

 

Amorphous core

S3U 600/600/150

125

2450

3,0

Default core

EI 600/600/150

125

7379

 

 

 

 

 

Amorphous core

S3U 600/600/200

160

3420

2,9

Default core

EI 600/600/200

160

9891

 

 

 

 

 

Amorphous core

S3U 700/700/200

200

3404

2,5

Default core

EI 700/700/200

200

8510

 

 

 

 

 

Amorphous core

S3U 800/800/160

300

3540

2,2

Default core

EI 800/720/160

300

7870


Advantages of energie-efficient transformers


High efficiency. Energy-efficient due to low no load - partial load losses (in partial load or no load operation you find only iron losses and no resp. very low copper losses). Low heating (housings with IP 54 are possible). High economic efficiency (reduced losses save energy costs). Environmental-friendly (reduced losses -> less energy costs -> less Co2 emission). Low hum noise. Customer specified construction is possible. Amortisation of the extra costs is possible within a few years due to the energy savings. The energy savings can be a multiple of the purchase prize during the whole lifetim of the device. All norms are redeemed.

Tags: loss reduced, environmental-friendly, eco, green transformer, ecoconscious, climate protection


Customer specified solution - Customer’s demand


Our customer builds test and simulation systems for photovoltaic systems. Photovoltaic cells react different during possible weather conditions. The characteristics and the behaviour of various solar cells should be set and programmed freely. The transformer has to generate and supply the needed power in many various steps.


Solution


We construct a 300 kW three-phase transformer for twelve pulse rectification with the vector group Dddyy. Like this the rectified voltage is low on ripples and stable. The powersteps can be reached by several primary steps.


Technical data


Power: 300 kVA
Dimensions: 1100 mm x 700 mm x 770 mm
Weight: 1030 kg
Vector group: Dddy
BV 2914104


Three-phase transformer 300 kVA - Customer solution


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