geafol cast-resin transformers 100 to 16000kva

GEAFOLCast-Resin Transformers100 to 16000 kVA

Cast-ResinTransformersCatalogTV1 ⋅ 2002Supersedes: Catalog TV1 ⋅ 1995

TV1 ⋅ 2002 3

Reliable Technology

Siemens AG 2002

Wherever distribution transformers

have to assure the utmost safety in ar-

eas frequented by people, GEAFOL®

cast-resin transformers are the ideal so-

lution. With GEAFOL, the limitations of

liquid-filled transformers are avoided,

but the proven characteristics such as

operational reliability and service life are

retained.

Not for nothing are GEAFOL cast-resin

transformers used, above all, wherever

there can be no compromises with re-

gard to safety. They are to be found in

high-rise buildings, hospitals, road and

underground railway shafts, in offshore

installations and mines and many other

locations. It is not surprising that the su-

perior GEAFOL technology is produced

under licence by many transformer

manufacturers all over the world. Well

over 80,000 GEAFOL cast-resin trans-

formers have proved their worth in

power distribution all round the globe.

The adjacent diagram shows the power

rating and voltage range developments

achieved since 1966 as a result of con-

tinuous innovation. Nowadays GEAFOL

cast-resin transformers are available up

to a power rating of approximately

30 MVA.

Contents

Design, Features 4Cast-Resin Transformers100 to 16000 kVA,Selection and Ordering Data 5–9Connection System 10Temperature Supervision 11Additional Forced-Air Coolingto Increase the TransformerOutput 11Standard Housings 12Selection of the Housings,Selection and Ordering Data 13Special Housings 14

Power ratingin MVA

Operatingvoltage in kV

Rated lightning im-pulse withstandvoltage in kV

Development of voltageand power ratings

4 TV1 ⋅ 2002

Design, Features

Three-limb core

Made of grain-oriented, low-losselectrolaminations insulated on bothsides

LV winding

Made of aluminium strip. Turns firmlyglued together by means of insulatingsheet wrapper material

HV winding

Consisting of vacuum-potted singlefoil-type aluminium coils

LV connection

Normal arrangement: Top, rearSpecial version: Bottom,available on request at extra charge

HV connection

Variable arrangement, for optimalstation design

HV tappings on low-voltage side

For adjustment to system conditions,reconnectable in deenergized state

Resilient spacers

To insulate core and windings frommechanical vibrations, resulting in lownoise emissions

Clamping frame and truck

Rollers can be swung around for length-ways or sideways travel

Insulation: Mixture of epoxy

resin and quartz powder

Makes the transformer nearly mainte-nance-free, moisture-proof, tropicalized,flame-resistant and self-extinguishing,without using aluminium oxidetrihydrate

1

2

3

4

5

6

7

8

630 kVA GEAFOLcast-resin transformer,Ur = 20 kV

TV1P

-004

.eps

Temperature monitoring

By PTC thermistor detectors in the LVwinding (on request PT 100)

Paint finish on steel parts

Thick-layer coating, RAL 5009On request: Two-component varnish orhot-dip galvanizing (for particularly ag-gressive environments)

Modular design

E.g. windings can be individuallymounted and replaced on the spot

Ambient class E2

Climatic category C2 (if the transformeris installed outdoors, degree of protec-tion IP23 must be assured)Fire class F1

TV1 ⋅ 2002 5

100 to 16000 kVA

Distribution transformers according to DIN 42523, 50 Hz, Dyn 5, IP00 without housing (for other housings IP.. see p.12)(all GEAFOL cast-resin transformers according to IEC 60726, rated power > 2500 kVA are not standardized)

Rated

pow

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Rated

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tapp

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2x 2.

5%

Rated

seco

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(no-

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Insu

lation

level

HV(A

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Insu

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level

LV(A

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Impe

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Load

losse

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0°C

Noise

level

Order

No.

Total

weig

htLe

ngth

Widt

h

Height

Sr

kVA

UrHVkV

UrLVkV kV kV

uzr

%

Po

W

Pk120

W

LWA

dBapprox.kg

a

mm

b

mm

h

mm

100 10 0.4 28/75 3/– 4 440 1850 59 4GB5044-3CA05-0AA2 590 1190 670 84510 0.4 28/75 3/– 4 320 1850 51 4GB5044-3GA05-0AA2 730 1240 680 86010 0.4 28/75 3/– 6 360 2000 59 4GB5044-3DA05-0AA2 550 1190 675 83010 0.4 28/75 3/– 6 290 2000 51 4GB5044-3HA05-0AA2 610 1220 680 84020 0.4 50/95 3/– 4 600 1750 59 4GB5064-3CA05-0AA2 620 1220 740 93020 0.4 50/95 3/– 4 400 1750 51 4GB5064-3GA05-0AA2 730 1260 745 95020 0.4 50/95 3/– 6 460 2050 59 4GB5064-3DA05-0AA2 590 1240 745 93020 0.4 50/95 3/– 6 340 2050 51 4GB5064-3HA05-0AA2 660 1250 750 93020 0.4 50/125 3/– 6 460 2050 59 4GB5067-3DA05-0AA2 640 1260 745 1015

160 10 0.4 28/75 3/– 4 610 2600 62 4GB5244-3CA05-0AA2 710 1220 680 101010 0.4 28/75 3/– 4 440 2600 54 4GB5244-3GA05-0AA2 890 1270 685 103510 0.4 28/75 3/– 6 500 2750 62 4GB5244-3DA05-0AA2 680 1220 685 99510 0.4 28/75 3/– 6 400 2750 54 4GB5244-3HA05-0AA2 760 1260 690 100520 0.4 50/95 3/– 4 870 2500 62 4GB5264-3CA05-0AA2 790 1280 745 106520 0.4 50/95 3/– 4 580 2500 54 4GB5264-3GA05-0AA2 910 1310 755 106520 0.4 50/95 3/– 6 650 2700 62 4GB5264-3DA05-0AA2 740 1300 755 105020 0.4 50/95 3/– 6 480 2700 54 4GB5264-3HA05-0AA2 840 1330 760 105520 0.4 50/125 3/– 6 650 2900 62 4GB5267-3DA05-0AA2 780 1300 755 1140

250 10 0.4 28/75 3/– 4 820 3200 65 4GB5444-3CA05-0AA2 900 1270 690 108010 0.4 28/75 3/– 4 600 3200 57 4GB5444-3GA05-0AA2 1100 1330 700 109510 0.4 28/75 3/– 6 700 3300 65 4GB5444-3DA05-0AA2 950 1350 710 106010 0.4 28/75 3/– 6 560 3300 57 4GB5444-3HA05-0AA2 1110 1390 715 107020 0.4 50/95 3/– 4 1100 3200 65 4GB5464-3CA05-0AA2 1040 1350 725 112520 0.4 50/95 3/– 4 800 3200 57 4GB5464-3GA05-0AA2 1180 1390 730 113020 0.4 50/95 3/– 6 880 3400 65 4GB5464-3DA05-0AA2 980 1380 735 109520 0.4 50/95 3/– 6 650 3400 57 4GB5464-3HA05-0AA2 1100 1410 740 111020 0.4 50/125 3/– 6 880 3800 65 4GB5467-3DA05-0AA2 1000 1370 735 121030 0.4 70/145 3/– 6 1280 4000 67 4GB5475-3DA05-0AA2 1180 1450 815 1355

(315)1) 10 0.4 28/75 3/– 4 980 3500 67 4GB5544-3CA05-0AA2 1050 1310 820 112010 0.4 28/75 3/– 4 730 3500 59 4GB5544-3GA05-0AA2 1260 1370 820 115510 0.4 28/75 3/– 6 840 3700 67 4GB5544-3DA05-0AA2 1100 1380 820 111010 0.4 28/75 3/– 6 670 3700 59 4GB5544-3HA05-0AA2 1230 1410 820 113020 0.4 50/95 3/– 4 1250 3500 67 4GB5564-3CA05-0AA2 1160 1420 820 112520 0.4 50/95 3/– 4 930 3500 59 4GB5564-3GA05-0AA2 1280 1430 820 114520 0.4 50/95 3/– 6 1000 3800 67 4GB5564-3DA05-0AA2 1130 1410 820 116520 0.4 50/95 3/– 6 780 3800 59 4GB5564-3HA05-0AA2 1260 1440 825 117520 0.4 50/125 3/– 6 1000 4200 67 4GB5567-3DA05-0AA2 1250 1460 830 125530 0.4 70/145 3/– 6 1450 4700 69 4GB5575-3DA05-0AA2 1430 1510 905 1435

1) Ratings in brackets are notstandardized.

Selection and ordering data (other version and special equipment on request)

6 TV1 ⋅ 2002

100 to 16000 kVA

Distribution transformers according to DIN 42523, 50 Hz, Dyn 5, IP00 without housing (for other housings IP.. see p.12)

Rated

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Rated

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Rated

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(no-

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Insu

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HV(A

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Insu

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LV(A

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Impe

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Load

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Noise

level

Order

No.

Total

weig

htLe

ngth

Widt

h

Height

Sr

kVA

UrHVkV

UrLVkV kV kV

uzr

%

Po

W

Pk120

W

LWA

dBapprox.kg

a

mm

b

mm

h

mm


(500)1) 10 0.4 28/75 3/– 4 1300 5900 69 4GB5744-3CA05-0AA0 1430 1410 820 131010 0.4 28/75 3/– 4 1000 5300 61 4GB5744-3GA05-0AA0 1590 1410 820 134010 0.4 28/75 3/– 6 1200 6400 69 4GB5744-3DA05-0AA0 1360 1440 820 125510 0.4 28/75 3/– 6 950 6400 61 4GB5744-3HA05-0AA0 1530 1490 820 127020 0.4 50/95 3/– 4 1700 4900 69 4GB5764-3CA05-0AA0 1530 1460 830 136520 0.4 50/95 3/– 4 1300 4900 61 4GB5764-3GA05-0AA0 1680 1490 835 137020 0.4 50/95 3/– 6 1400 5100 69 4GB5764-3DA05-0AA0 1480 1520 845 127520 0.4 50/95 3/– 6 1100 5100 61 4GB5764-3HA05-0AA0 1620 1550 850 129020 0.4 50/125 3/– 6 1400 6300 69 4GB5767-3DA05-0AA0 1570 1540 845 136030 0.4 70/145 3/– 6 1900 6000 70 4GB5775-3DA05-0AA0 1760 1550 915 160030 0.4 70/170 3/– 6 2600 6200 79 4GB5780-3DA05-0AA0 2030 1700 990 1590


(800)1) 10 0.4 28/75 3/– 4 1800 7800 72 4GB5944-3CA05-0AA0 1960 1500 820 153010 0.4 28/75 3/– 4 1400 7800 64 4GB5944-3GA05-0AA0 2190 1530 820 153010 0.4 28/75 3/– 6 1700 8300 72 4GB5944-3DA05-0AA0 1940 1590 830 139510 0.4 28/75 3/– 6 1300 8300 64 4GB5944-3HA05-0AA0 2200 1620 835 139520 0.4 50/95 3/– 4 2400 8500 72 4GB5964-3CA05-0AA0 2000 1550 840 159520 0.4 50/95 3/– 4 1900 8500 64 4GB5964-3GA05-0AA0 2200 1570 845 159520 0.4 50/95 3/– 6 1900 8200 72 4GB5964-3DA05-0AA0 1940 1610 860 143520 0.4 50/95 3/– 6 1500 8200 64 4GB5964-3HA05-0AA0 2150 1650 865 145520 0.4 50/125 3/– 6 1900 9400 72 4GB5967-3DA05-0AA0 2130 1650 865 148530 0.4 70/145 3/– 6 2650 7900 72 4GB5975-3DA05-0AA0 2540 1740 950 1675


(all GEAFOL cast-resin transformers according to IEC 60726, rated power > 2500 kVA are not standardized)


TV1 ⋅ 2002 7

Rated

pow

er

Rated

prim

ary vo

ltage

tapp

ing±

2x 2.

5%

Rated

seco

ndar

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(no-

load)

Insu

lation

level

HV(A

C/LI)

Insu

lation

level

LV(A

C/LI)

Impe

danc

evo

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atra

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No-loa

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ses

Load

losse

s at12

0°C

Noise

level

Order

No.

Total

weig

htLe

ngth

Widt

h

Height

Sr

kVA

UrHVkV

UrLVkV kV kV

uzr

%

Po

W

Pk120

W

LWA

dBapprox.kg

a

mm

b

mm

h

mm


(1250)1) 10 0.4 28/75 3/– 6 2400 11000 75 4GB6144-3DA05-0AA0 2730 1740 990 163510 0.4 28/75 3/– 6 1800 11000 67 4GB6144-3HA05-0AA0 3120 1770 990 167520 0.4 50/95 3/– 6 2700 11200 75 4GB6164-3DA05-0AA0 2730 1790 990 164520 0.4 50/95 3/– 6 2100 11200 67 4GB6164-3HA05-0AA0 2960 1810 990 164520 0.4 50/125 3/– 6 2700 10500 75 4GB6167-3DA05-0AA0 2950 1810 990 167530 0.4 70/145 3/– 6 3600 11500 75 4GB6175-3DA05-0AA0 3540 1880 1055 1895

1600 10 0.4 28/75 3/– 6 2800 14000 76 4GB6244-3DA05-0AA0 3460 1840 990 173510 0.4 28/75 3/– 6 2100 14000 68 4GB6244-3HA05-0AA0 4110 1880 990 177520 0.4 50/95 3/– 6 3100 13500 76 4GB6264-3DA05-0AA0 3400 1840 990 182020 0.4 50/95 3/– 6 2400 13500 68 4GB6264-3HA05-0AA0 3800 1870 990 187520 0.4 50/125 3/– 6 3100 12500 76 4GB6267-3DA05-0AA0 3650 1860 990 187530 0.4 70/145 3/– 6 4100 13500 76 4GB6275-3DA05-0AA0 4330 1970 1080 1995

(2000)1) 10 0.4 28/75 3/– 6 3500 15700 78 4GB6344-3DA05-0AA0 4100 1940 1280 193510 0.4 28/75 3/– 6 2600 15700 70 4GB6344-3HA05-0AA0 4850 1980 1280 201520 0.4 50/95 3/– 6 4000 15400 78 4GB6364-3DA05-0AA0 4140 1980 1280 195020 0.4 50/95 3/– 6 2900 15400 70 4GB6364-3HA05-0AA0 4680 2020 1280 198520 0.4 50/125 3/– 6 4000 15500 78 4GB6367-3DA05-0AA0 4410 2020 1280 200030 0.4 70/145 3/– 6 5000 15000 78 4GB6375-3DA05-0AA0 5070 2100 1280 2135

2500 10 0.4 28/75 3/– 6 4300 18700 81 4GB6444-3DA05-0AA0 4800 2100 1280 206510 0.4 28/75 3/– 6 3000 18700 71 4GB6444-3HA05-0AA0 5910 2160 1280 213520 0.4 50/95 3/– 6 5000 18000 81 4GB6464-3DA05-0AA0 5140 2160 1280 214520 0.4 50/95 3/– 6 3600 19000 71 4GB6464-3HA05-0AA0 5980 2200 1280 215020 0.4 50/125 3/– 6 5000 18000 81 4GB6467-3DA05-0AA0 4990 2170 1280 210030 0.4 70/145 3/– 6 5800 20000 81 4GB6475-3DA05-0AA0 5900 2280 1280 2215

3150 10 0.4 28/75 3/– 6 5400 25000 81 4GB6544-3DA05-0AA0 6440 2460 1280 231510 0.693 28/75 3/– 6 5400 18000 81 4GB6544-8DA05-0AA0 6460 2200 1280 205510 3.3 28/75 10/20 6 5400 16000 81 4GB6544-9DA05-0AA0 H1N 6500 2290 1280 200020 0.4 50/95 3/– 6 6200 21000 81 4GB6564-3DA05-0AA0 6100 2320 1280 222520 0.693 50/95 3/– 6 6200 18000 81 4GB6564-8DA05-0AA0 6030 2170 1280 210520 3.3 50/95 10/20 6 6200 18000 81 4GB6564-9DA05-0AA0 H1N 6560 2350 1280 203020 0.4 50/125 3/– 6 6200 21000 81 4GB6567-3DA05-0AA0 6250 2340 1280 229020 0.693 50/125 3/– 6 6200 18000 81 4GB6567-8DA05-0AA0 6100 2170 1280 214020 3.3 50/125 10/20 6 6200 18000 81 4GB6567-9DA05-0AA0 H1N 6650 2300 1280 2060


8 TV1 ⋅ 2002

100 to 16000 kVA

Distribution transformers according to DIN 42523, 50 Hz, Dyn 5, IP00 without housing (for other housings IP.. see p.12)

Rated

pow

er

Rated

prim

ary vo

ltage

tapp

ing±

2x 2.

5%

Rated

seco

ndar

y volta

ge

(no-

load)

Insu

lation

level

HV(A

C/LI)

Insu

lation

level

LV(A

C/LI)

Impe

danc

evo

ltage

atra

ted

curre

nt

No-loa

dlos

ses

Load

losse

s at12

0°C

Noise

level

Order

No.

Total

weig

htLe

ngth

Widt

h

Height

Sr

kVA

UrHVkV

UrLVkV kV kV

uzr

%

Po

W

Pk120

W

LWA

dBapprox.kg

a

mm

b

mm

h

mm

4000 10 0.693 28/75 3/– 6 6300 20000 81 4GB6644-8DA05-0AA0 7840 2300 1280 222510 3.3 28/75 10/20 6 6300 19000 81 4GB6644-9DA05-0AA0 H1N 8560 2450 1280 208010 6.3 28/75 20/40 6 6300 19000 76 4GB6644-9DA05-0AA0 H2B 9160 2570 1280 212520 0.693 50/95 3/– 6 7600 21000 83 4GB6664-8DA05-0AA0 7350 2360 1280 230020 3.3 50/95 10/20 6 7600 19000 83 4GB6664-9DA05-0AA0 H1N 7400 2400 1280 203020 6.3 50/95 20/40 6 7600 19000 83 4GB6664-9DA05-0AA0 H2B 8640 2590 1280 205520 0.693 50/125 3/– 6 7600 21000 85 4GB6667-8DA05-0AA0 7430 2330 1280 232520 3.3 50/125 10/20 6 7600 19000 83 4GB6667-9DA05-0AA0 H1N 7850 2420 1280 210020 6.3 50/125 20/40 6 7600 19000 85 4GB6667-9DA05-0AA0 H2B 8900 2610 1280 2125

5000 10 3.3 28/75 10/20 6 7600 21000 81 4GB6744-9DA05-0AA0 H1N 9540 2480 1280 229010 6.3 28/75 20/40 6 7600 23000 78 4GB6744-9DA05-0AA0 H2B 10360 2590 1400 229010 3.3 28/75 10/20 8 7600 23000 76 4GB6744-9KA05-0AA0 H1N 9580 2600 1280 225010 6.3 28/75 20/40 8 7600 24000 78 4GB6744-9KA05-0AA0 H2B 10480 2690 1400 229020 3.3 50/95 10/20 6 9000 21000 83 4GB6764-9DA05-0AA0 H1N 9070 2520 1280 221020 6.3 50/95 20/40 6 9000 23000 83 4GB6764-9DA05-0AA0 H2B 9650 2600 1280 229520 3.3 50/125 10/20 6 9000 21000 83 4GB6767-9DA05-0AA0 H1N 9370 2520 1280 228020 6.3 50/125 20/40 6 9000 22000 83 4GB6767-9DA05-0AA0 H2B 9990 2640 1280 236520 3.3 50/95 10/20 8 9000 23000 83 4GB6764-9KA05-0AA0 H1N 9020 2600 1280 221020 6.3 50/95 20/40 8 9000 24000 83 4GB6764-9KA05-0AA0 H2B 9730 2710 1285 229520 3.3 50/125 10/20 8 9000 23000 83 4GB6767-9KA05-0AA0 H1N 9080 2610 1280 224020 6.3 50/125 20/40 8 9000 24000 83 4GB6767-9KA05-0AA0 H2B 10310 2720 1400 2290

6300 10 3.3 28/75 10/20 6 9200 26000 76 4GB6844-9DA05-0AA0 H1N 11900 2560 1905 264010 6.3 28/75 20/40 6 9200 27000 83 4GB6844-9DA05-0AA0 H2B 12130 2630 1905 262010 3.3 28/75 10/20 8 9200 26000 78 4GB6844-9KA05-0AA0 H1N 11560 2620 1905 260010 6.3 28/75 20/40 8 9200 28000 83 4GB6844-9KA05-0AA0 H2B 12150 2720 1905 262020 3.3 50/95 10/20 6 10800 24000 83 4GB6864-9DA05-0AA0 H1N 11690 2640 1905 244020 6.3 50/95 20/40 6 10800 26000 83 4GB6864-9DA05-0AA0 H2B 12120 2700 1905 254020 3.3 50/125 10/20 6 10800 24000 83 4GB6867-9DA05-0AA0 H1N 11790 2640 1905 247020 6.3 50/125 20/40 6 10500 26000 84 4GB6867-9DA05-0AA0 H2B 12150 2700 1905 256020 3.3 50/95 10/20 8 10800 26000 83 4GB6864-9KA05-0AA0 H1N 11800 2780 1905 244020 6.3 50/95 20/40 8 10800 27000 84 4GB6864-9KA05-0AA0 H2B 12290 2840 1905 254520 3.3 50/125 10/20 8 10500 25500 83 4GB6867-9KA05-0AA0 H1N 11890 2780 1905 247020 6.3 50/125 20/40 8 10500 27000 84 4GB6867-9KA05-0AA0 H2B 12270 2820 1905 2560

8000 20 6.3 50/95 20/40 6 13000 32000 85 4GB6964-9DA05-0AA0 H2B 14210 2840 1905 271020 11 50/95 28/60 6 13000 32000 85 4GB6964-9DA05-0AA0 H2T 15470 2940 1905 278020 6.3 50/125 20/40 6 13000 32000 85 4GB6967-9DA05-0AA0 H2B 14370 2850 1905 274020 11 50/125 28/60 6 13000 32000 85 4GB6967-9DA05-0AA0 H2T 16000 2940 1905 281020 6.3 50/95 20/40 8 13000 34000 85 4GB6964-9KA05-0AA0 H2B 14270 2970 1905 271020 11 50/95 28/60 8 13000 34000 85 4GB6964-9KA05-0AA0 H2T 15500 3060 1905 278020 6.3 50/125 20/40 8 13000 34000 85 4GB6967-9KA05-0AA0 H2B 14250 2930 1905 274020 11 50/125 28/60 8 13000 34000 85 4GB6967-9KA05-0AA0 H2T 15600 3070 1905 281030 6.3 70/145 20/40 6 13500 36000 83 4GB6975-9DA05-0AA0 H2B 16000 2900 1905 338030 11 70/145 28/60 6 13500 38000 80 4GB6975-9DA05-0AA0 H2T 17600 3060 1930 3360

(all GEAFOL cast-resin transformers according to IEC 60726, rated power > 2500 kVA are not standardized)


TV1 ⋅ 2002 9

Rated

pow

er

Rated

prim

ary vo

ltage

tapp

ing±

2x 2.

5%

Rated

seco

ndar

y volta

ge

(no-

load)

Insu

lation

level

HV(A

C/LI)

Insu

lation

level

LV(A

C/LI)

Impe

danc

evo

ltage

atra

ted

curre

nt

No-loa

dlos

ses

Load

losse

s at12

0°C

Noise

level

Order

No.

Total

weig

htLe

ngth

Widt

h

Height

Sr

kVA

UrHVkV

UrLVkV kV kV

uzr

%

Po

W

Pk120

W

LWA

dBapprox.kg

a

mm

b

mm

h

mm




Dimen-siondrawing

1 High-voltageterminals

2 High-voltagetappings onLV side

3 Low-voltage ter-minals

Design up to 100 kVAwithout rollers

10 TV1 ⋅ 2002

Connection System

Practice-oriented options for connectionof the high-voltage and the low-voltageside are a distinguishing feature of theflexible connection philosophy ofGEAFOL transformers.

Connection of the high-voltage side

In the standard design the HV connec-tion of the transformer is at the top coilconnection, connection at the bottom isavailable as an option (Fig. 1). Screwedcircuit connections are used for thedelta connection. The transformer con-nection is made at the end of the con-nection rods, alternatively at a straightor angled terminal face.

Connection of the high-voltageside using plug-type connectors

Connection of the HV side using out-side cone plug-type penetrations is pos-sible (see Fig. 2)

High-voltage tappings

The HV tappings allow matching to lo-cal network conditions. In deenergizedstate, the desired tapping can be se-lected by means of connection strapsand screwed connections.

Connection of the low-voltage side

In the standard design the LV connec-tion of the transformer is also at the topcoil connection, connection at the bot-tom is available as an option (Fig. 3).

If intermediate expansion links are em-ployed, the LV side connection is pro-tected against mechanical stress andtransmission of structure-borne noise isdrastically reduced.

Connection of earthing and short-circuiting devices

Either straight or angled conical fixedpoints, of diameter 20 mm or 25 mm,can be mounted at the conductor con-nections, at the HV side at the connec-tion rods and at the LV side at the con-ductor terminal face.

Fig. 1

Fig. 3

Fig. 1

Fig. 2

Fig. 3

Variable connection possibilities,e.g. at the delta connected HV side

Plug-type HV-connectors

LV connection system on GEAFOL transformersLeft Fig.: Conductor and neutral connection at topRight Fig.: Conductor and neutral connection at bottom

Fig. 2

TV1 ⋅ 2002 11

Temperature Supervision Additional Forced-AirCooling to Increase theTransformer Output

Either PTC thermistor sensors, PT 100resistance temperature detectors or acapillary tube thermometer can be em-ployed for temperature supervision ofGEAFOL transformers. The tempera-ture of the LV windings is monitoredand in addition in the case of convertertransformers, also the core tempera-ture is monitored. The most economicalsolution is monitoring by means of PTCthermistor sensors and tripping devicewithout indication of the temperature.All GEAFOL transformers are providedwith at least one PTC thermistor sensorcircuit for tripping purposes.

Function

Temperature supervision by means ofPTC thermistor sensors: In the case ofthree-phase transformers a systemconsists of 3 PTC thermistor sensors,connected in series, according to DIN –one sensor per phase – and a trippingdevice.

The PTC thermistor sensors function asresistances: When the response tem-perature is reached, a step-change inresistance occurs and the changeovercontact in the tripping device is oper-ated.

As soon as the temperature of thewinding falls below the response tem-perature by approx. 6 K, the relay coil inthe tripping device is fully energizedand the changeover contact returns toits original position.

The supervision system is fail-safe anduses a normally closed circuit. It thusprovides protection against a wire-breakin the sensor circuit.

When two systems are employed fortemperature supervision, one is con-nected to provide alarm signalling andthe other tripping. The rated responsetemperatures of both systems differ by20 K. A third system can, for example,be used for fan control.

If the control supply voltage for temper-ature supervision is taken directly fromthe secondary side of the transformer,a time relay is frequently needed, de-pending on the unit. This time relay isused to bridge the time interval betweenenergizing the transformer and pick-upof the relay in the tripping device.

The ambient temperature for the trip-ping device is limited to 55 °C. For thisreason installation of the tripping devicein medium or low-voltage distributioncabinets is to be recommended.

GEAFOL transformers can be equippedwith radial-flow fans to increase theiroutput rating by up to 50 %. If the out-put is increased by e.g. 40 % the loadlosses stated in the list will be doubledand the impedance voltage will be lin-early increased by 40 %.The fans are automatically switched onor off via thermistor sensors in the LVwinding.The fan noise level is at approx.80 dB(LWA).

Typical circuit diagram for temperature supervision

1 PTC thermistorsensor

2 Tripping device3 Alarm or trip4 Time relay,

pick-up delay5 Terminal strip at

the transformer

Power supply for the tripping device from a systemfed from the transformer to be protected

GEAFOL transformerwith attached radial-flow fans

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12 TV1 ⋅ 2002

Standard Housings

Installation Indoors Indoors Indoors Outdoors

Degree of protection IP 00 IP 20 IP 23 IP 23D IP 23DW

14th position of the Order No. A B C D E

Environmental conditions

Lockedelectrical locations1)

� � � � �

Electrical locations1) – � � � �

Water up to 60 °C to � – – � � �

Snow – – – – �

Direct sunlight, sandstorm – – – – �

Salt-laden atmosphere � � � � � Special paint

Corrosive chemical environment � � � � � Special paint

Accidental contact – � � � �

Foreign bodies > 12 mm dia. – � � � �

Protection against access with a wire 2) – – – � �

1) According to VDE 0100 Parts 200 and 731.2) Test wire diameter 1 mm according to EN 60529.

Variable connection techniques:The cable can be brought in through the bottom,the cover or one of the sides.

A reduction in out-put is possible incase of installationinside the protec-tive housing.

Design of housing cover, degreeof protection IP 23(indoor installation)

Drawing shows cross-sectionof ventilation slots in cover strips.

Photo: Cover strips are bent downat ends and fastened by bolting towalls.

Ventilation slots in a labyrinthinestructure for additional safetyagainst access with a wire.

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TV1 ⋅ 2002 13

Selection of the Housings

Outdoor (degree of protection IP23DW)

Housingsize

Maximum housing dimensions [mm] Housingweight [kg]

L W H

1 1440 1070 1540 1532 1880 1320 1845 2333 1880 1420 2245 2674 2240 1540 2480 3255 2380 1540 2950 392

Indoor (degree of protection IP20)

Housingsize


L W H

1 1390 1010 1335 1212 1860 1280 1535 1773 1860 1280 1885 2114 2120 1500 2120 2525 2360 1500 2340 290

*) Other versions and special equipment available on request.1) Ratings in brackets are not standardized.2) IP20: Height + 100 mm.3) IP20/IP23/IP23D/IP23DW: Width and height + 100 mm.

Dimensions and weights Selection and ordering data*)

Indoor (degree of protection IP23 and IP23D)

Housingsize


L W H

1 1390 1010 1395 1342 1860 1280 1595 2073 1860 1280 1945 2474 2120 1500 2225 3025 2360 1500 2495 370

Ratedpower

Ratedvoltage HV

Order No. Housingsize

Sr

kVAUr

kV1. 3. 5. 7. 9. 11. 13. 15.

2. 4. 6. 8. 10. 12. 14. 16.

100 10 4GB50 44-3�A05-0�A2 120 4GB50 64-3�A05-0�A2 2

160 10 4GB52 44-3�A05-0�A2 120 4GB52 64-3�A05-0�A2 2

250 10 4GB54 44-3�A05-0�A2 220 4GB54 64-3�A05-0�A2 2

(315)1) 10 4GB55 44-3�A05-0�A2 220 4GB55 64-3�A05-0�A2 2

400 10 4GB56 44-3�A05-0�A2 220 4GB56 64-3�A05-0�A2 2

(500)1) 10 4GB57 44-3�A05-0�A0 220 4GB57 64-3�A05-0�A0 2

630 10 4GB58 44-3CA05-0�A0 220 4GB58 64-3CA05-0�A0 210 4GB58 44-3DA05-0�A0 220 4GB58 64-3DA05-0�A0 210 4GB58 44-3GA05-0�A0 320 4GB58 64-3GA05-0�A0 210 4GB58 44-3HA05-0�A0 220 4GB58 64-3HA05-0�A0 2

(800)1) 10 4GB59 44-3�A05-0�A0 320 4GB59 64-3�A05-0�A0 3

1000 10 4GB60 44-3CA05-0�A0 320 4GB60 64-3CA05-0�A0 310 4GB60 44-3DA05-0�A0 320 4GB60 64-3DA05-0�A0 310 4GB60 44-3GA05-0�A0 320 4GB60 64-3GA05-0�A0 410 4GB60 44-3HA05-0�A0 320 4GB60 64-3HA05-0�A0 4

(1250)1) 10 4GB61 44-3�A05-0�A0 420 4GB61 64-3�A05-0�A0 4

1600 10 4GB62 44-3�A05-0�A0 420 4GB62 64-3�A05-0�A0 4

(2000)1) 10 4GB63 44-3�A05-0�A0 520 4GB63 64-3�A05-0�A0 5

2500 10 4GB64 44-3DA05-0�A0 520 4GB64 64-3DA05-0�A0 510 4GB64 44-3HA05-0�A0 52)

20 4GB64 64-3HA05-0�A0 53)

> 2500 Standard housings are available on request.

14 TV1 ⋅ 2002

Special Housings

Order No.: E50001-K7101-A101-A3-7600

Printed in GermanyKGK 0102 3.0 16 En 102418 6101/D6203

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In addition to the standard housings we also supply housingswith framework construction and doors, which can also befitted with roof fans. These housing types can be installed incombination with low and medium-voltage cabinets.

Please contact us for more information.

Note:The technical data, dimensions and weights are subject tochange unless otherwise stated on the individual pages ofthis catalog.

The illustrations are for reference only.

All product designations used are trademarks or productnames of Siemens AG or of other suppliers.

All dimensions in this catalog are given in mm.

Published by

Siemens AGPower Transmission and DistributionTransformers DivisionTransformatorenwerk KirchheimHegelstraße 2073230 Kirchheim/TeckGermany

www.ptd.siemens.de Order No.: E50001-K7101-A101-A3-7600

geafol cast-resin transformers 100 to 16000kva

Documents

io li

li nc

ptc thermistor sensors

ur lv kv

ra te ta

ur hv kv

rated power

top coil connection