NEWS AND MODIFICATIONS

TAP CHANGERS SERIES 010

LDT-010 LDT_010_2017_Rev_00 Pag. 1/33

 SUMMARY
TAP CHANGERS SERIES 010

REF. REV. DESCRIPTION CONNECTION CURRENT VOLTAGE N° POS. PAG.

010 03 Introduction 3,4

010-AT-01 02 Three phase tap changer Bridge 120-420 A 24/36/52/72,5 kV 2-6 5

010-AT-05 00 Three phase tap changer Bridge 120-420 A 24/36/52/72,5 kV 2-6 6
010-AT-02 02 Three phase tap changer Bridge 120-420 A 24/36/52/72,5 kV 7-9 7
010-AT-06 00 Three phase tap changer Bridge 120-420 A 24/36/52/72,5 kV 7-9 8
010-AT-03 02 Three phase tap changer Bridge 600 A 24/36/52/72,5 kV 2-7 9
010-AT-07 00 Three phase tap changer Bridge 600 A 24/36/52/72,5 kV 2-7 10
010-AT-04 02 Double three phase tap changer Bridge 120-420 A 24/36/52/72,5 kV 2-6 11

010-ATC-01 01 Three phase tap changer Linear 120-420 A 24/36/52/72,5 kV 2-6 12

010-ATC-02 02 Three phase tap changer Linear 120-420 A 24/36/52/72,5 kV 7-9 13
010-ATC-03 01 Three phase tap changer Linear 600 A 24/36/52/72,5 kV 2-7 14

010-ATS-01 01 Three phase tap changer Star 120-420 A 24/36/52/72,5 kV 2-6 15

010-ATS-02 02 Three phase tap changer Star 120-420 A 24/36/52/72,5 kV 7-9 16
010-ATS-03 01 Three phase tap changer Star 600 A 24/36/52/72,5 kV 2-7 17

010-ATSP-01 02 Three phase tap changer Series/parallel 120-420 A 10/20 kV – 15/30 kV 2 18

010-ATSP-02 02 Three phase tap changer Series/parallel 600 A 10/20 kV – 15/30 kV 2 19

010-ATST-01 01 Three phase tap changer Star/Delta 120-420 A 24/36 kV 2 20

010-ATST-02 01 Three phase tap changer Star/Delta 600 A 24/36 kV 2 21

010-01 01 Contacts type threaded 120/200/300/400 A 22

010-02 01 Contacts type threaded 600 A 23
010-03 01 Contacts type tubular 180/330/420 A 24
010-04 02 Contacts type flag 400/600 A 25
010-05 02 Tap changer coupling 26
010-06 01 Common contacts 120/200/300/400/600 A 27

Construction codes assembly

010-07 02 28
diagram
010-08 00 Assembly diagram “LAYOUT 1” 29
010-09 00 Assembly diagram “LAYOUT 2” 30
010-10 00 Assembly diagram “LAYOUT 2” 31
010-11 00 Assembly diagram “LAYOUT 3” 32
010-12 00 Assembly diagram “LAYOUT 3” 33

LDT-010 LDT_010_2017_REV_03 Pag. 2/33

 INTRODUCTION
TAP CHANGERS SERIES 010

MAIN CHARACTERISTIC
This is a de-energized tap changer. It means all switching manoeuvre must be performed after disconnecting transformer by the
electrical net opening the sectionalising switches, both HV and LV side, so transformer becomes off-circuit.

DIMENSION
All dimension reported in the following pages are in millimetres (mm)

MODIFICATIONS
In case we need to modify some particulars, in order to improve the quality of our products, CAPT firma reserve an option to change
without a previous warning. Substantial modification will be surely communicated.

TRANSFORMER OIL
All our tap changers are suitable to work in oil immersed transformers according to standard IEC 60296.
In case user need to use specific oil (silicon, synthetic or vegetal) it is necessary consulted CAPT technical office who verify the
functionality of tap in all the mechanicals, electrical and chemical characteristics.

INSULATION MATERIAL
The insulating materials used are bakelite (paper laminates and phenoplastic resin) of “E” thermal class.

GASKET
The standard gaskets supplied by C.A.P.T. for all drives are suitable for use in mineral oil according to IEC 60296 at operating
temperatures between -25°C and +105°C and in air at temperatures between -25°C and +40°C according to IEC 60214.
On request, depending on the conditions of use C.A.P.T. can provide gaskets suitable for lower temperatures up to -60°C or higher
up to +200°C.

DRIVE HANDLE
Tap-changers can be controlled by manual drive at man’s height, or with manual drive type on the cover of the transformer.
The pad lockable control boxes with or without electric contacts are of sturdy aluminum casting.

POSITION RANGE
POSITIONS: from 2 to 9

VOLTAGES RATING
24kV – 36kV – 52 kV - 72,5kV

CURRENT RATING
120A – 200A – 300A – 400A – 600A available each for cable type connectors on the threaded fixed contacts
180A – 330A – 420A with a choice of crimped, soldered or brazed type connectors on the copper tubular fixed contacts.

TYPE OF TAP- CHANGERS

AT: tap changer regulation is bridge connection type
ATS: tap changer regulation is star connection type with the choice of a take-off terminal
ATC: tap changer regulation is common output for phase connection type
ATSP: tap changer suitable to connect in series or in parallel the tapped winding.
ATST: tap changer suitable to connect wye / delta the windings.
The equipment shown in details of the next sheets are few of many arrangements provided for these tap selectors.
Other arrangements can be found out from these detail or available on request to meet the transformer design needs.

MOVING CONTACTS
They are made of copper
On request, contacts can be supplied silver plated (from 600A all moving and fixed contacts are silver plated).

LDT-010 010 - Rev 03 - 13/07/2017 Pag. 3/33

 INTRODUCTION
TAP CHANGERS SERIES 010

DRYING PROCESS
Different drying treatment can be process by customer: oven, in a vacuum autoclave, vapour-phase or other. In this process is
normally included tap changer too. The maximum temperature suggested by C.A.P.T. for our tap changers is 100°C-120°C

DRYING PROCESS IN CASE OF BEVEL GEAR AND DRIVE HANDLE

It is better to leave out from drying treatment the drive handle and bevel gear. In case it is impossible to leave them out, we suggest
to strictly respect the temperature recommended.
When you need drive handle with micro switch for electrical lock or electrical position transmitter it is recommended to do the
treatment without the drive.

WHEN CONTACT C.A.P.T.

In the following cases please contact C.A.P.T.
- for temperature condition higher/lower then suggest
- for hard environment conditions, with possibility of snow or sand storming, or in potential seismic area.

TYPE TEST
Type test reports are furnished on request. Our de-energized tap changers are tested according to IEC 60214 as follows:

- 7.2 - Type tests.

- 7.2.2 - Temperature rise of contacts.
- 7.2.3 - Short-circuit current test.
- 7.2.4.1 - Mechanical endurance test.
- 7.2.5 - Dielectric tests.
- 7.3.1 - Mechanical routine test.

LDT-010 010 - Rev 03 - 13/07/2017 Pag. 4/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE AT

- De-energized operation
- For oil immersed transformer
- Bridge connection
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- From 2 to 6 positions
- Regulation 2,5% per position Dimension in mm

1.12.120
1.12.130
=60°

10 ±2

15
14

L
77

50 G+40
G
= =
60

80
B 82 44
A 126
9

9 37 9

23 80 23
59
80
59 21
21

Z 55 55

30 C F C F C E D 9 (2x) DET. X

TIPO KV POS. A B C D E F G Z
AT 202 2 546 355 63 61,5 120,5 72,5 45 31,5
AT 203 3 672 418 94,5 93 120,5 72,5 45 31,5
AT 204 24 4 798 481 126 124,5 120,5 72,5 45 31,5
AT 205 5 924 544 157,5 156 120,5 72,5 45 31,5
AT 206 6 1050 607 189 187,5 120,5 72,5 45 31,5
AT 302 2 635,5 430 63 61,5 150 102,5 105 31,5
AT 303 3 761,5 493 94,5 93 150 102,5 105 31,5
AT 304 36 4 887,5 556 126 124,5 150 102,5 105 31,5
AT 305 5 1013,5 619 157,5 156 150 102,5 105 31,5
AT 306 6 1139,5 682 189 187,5 150 102,5 105 31,5
AT 502 2 825,5 589 63 61,5 215 165 145 31,5
AT 503 3 951,5 652 94,5 93 215 165 145 31,5
AT 504 52 4 1077,5 715 126 124,5 215 165 145 31,5
AT 505 5 1203,5 778 157,5 156 215 165 145 31,5
AT 506 6 1329,5 841 189 187,5 215 165 145 31,5
AT 702 2 1110,5 826 63 61,5 310 260 225 31,5
AT 703 3 1236,5 889 94,5 93 310 260 225 31,5
AT 704 72,5 4 1362,5 952 126 124,5 310 260 225 31,5
AT 705 5 1488,5 1015 157,5 156 310 260 225 31,5 For "L" please specify
AT 706 6 1614,5 1078 189 187,5 310 260 225 31,5

010-AT-01
Rev. 02 - 27/02/2015

LDT-010 Pag. 5/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE AT

- De-energized operation
- For oil immersed transformer
- Bridge connection
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- From 2 to 6 positions
- Regulation 2,5% per position Dimension in mm

Thickness
Drive 070-1.12.120

Cover
or 070-1.12.130
77 On voltage (3x)

SHAFT 14

L
10 ±2
X

15
G

G+40
Y
= =
60

80

50
Y
B1 82 44
B2 126
A
6,5

9 (4x)
(2x)

Y-Y
= =
40

60°

126
3

23 80 23
18 50 12 59 21
15 80
95
9 37 9
9

9 (2x) DET. X
85,5

59
80
21
23

55 55
Z
15 H C F C F C E D

010-AT-05
Rev. 00 - 27/02/2015

LDT-010 Pag. 6/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE AT

- De-energized operation
- For oil immersed transformer
- Bridge connection
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- From 7 to 9 positions
- Regulation 2,5% per position Dimension in mm

1.12.120
1.12.130
=38°

10 ±2

15
14

L
X
77

50 G+40
G
= =

80
60

B 100 26
A 126

80
9

75
120
Z 45
77,5 77,5
30 C F C F C E D

23 80 23
77 3

9 (2x) DET. X

TIPO KV POS. A B C D E F G Z
AT 207 7 1200,5 693 220,5 221 143 72,5 45 31,5
AT 208 24 8 1326,5 756 252 252,5 143 72,5 45 31,5
AT 209 9 1452,5 819 283,5 284 143 72,5 45 31,5
AT 307 7 1290 767 220,5 221 172,5 102,5 105 31,5
AT 308 36 8 1416 830 252 252,5 172,5 102,5 105 31,5
AT 309 9 1542 893 283,5 284 172,5 102,5 105 31,5
AT 507 7 1480 926 220,5 221 237,5 165 145 31,5
AT 508 52 8 1606 989 252 252,5 237,5 165 145 31,5
AT 509 9 1732 1052 283,5 284 237,5 165 145 31,5
AT 707 7 1765 1164 220,5 221 332,5 260 225 31,5
AT 708 72,5 8 1891 1227 252 252,5 332,5 260 225 31,5 For "L" please specify
AT 709 9 2017 1290 283,5 284 332,5 260 225 31,5

010-AT-02
Rev. 02 - 27/02/2015

LDT-010 Pag. 7/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE AT

- De-energized operation
- For oil immersed transformer
- Bridge connection
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- From 7 to 9 positions
- Regulation 2,5% per position Dimension in mm

Thickness
Drive 070-1.12.120

Cover
or 070-1.12.130
77 On voltage (3x)

SHAFT 14

L
10 ±2
X

15
G+40
G
Y
= =
60

80

51
Y
B1 100 26
B2 126
A
6,5

9 (4x)
(2x)

126
23 80 23
Y-Y

38°
77 3
= =
40
3

18 50 12
15 80
95 9 (2x) DET. X
80
= =
9
85,5

75
120
45

Z 77,5 77,5
15 H C F C F C E D

010-AT-06
Rev. 00 - 27/02/2015

LDT-010 Pag. 8/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE AT

- De-energized operation
- For oil immersed transformer
- Bridge connection
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 600 A
- From 2 to 7 positions
- Regulation 2,5% per position Dimension in mm

1.12.130
=54°

10 ±2

15
14 X

L
82

50 G+40
G
= =

80
60

B 100 26
A 126

80
9

75
120
45
Z 77,5 77,5 23 80 23
30 C F C F C E D 77 3

9 (2x) DET. X

TIPO KV POS. A B C D E F G Z
AT 622 2 707 470 90 77 170 80 45 45
AT 623 3 887 560 135 122 170 80 45 45
AT 624 4 1067 650 180 167 170 80 45 45
24
AT 625 5 1247 740 225 212 170 80 45 45
AT 626 6 1427 830 270 257 170 80 45 45
AT 627 7 1607 920 315 302 170 80 45 45
AT 632 2 857 595 90 77 220 130 105 45
AT 633 3 1037 685 135 122 220 130 105 45
AT 634 4 1217 775 180 167 220 130 105 45
36
AT 635 5 1397 865 225 212 220 130 105 45
AT 636 6 1577 955 270 257 220 130 105 45
AT 637 7 1757 1045 315 302 220 130 105 45
AT 652 2 1007 720 90 77 270 180 145 45
AT 653 3 1187 810 135 122 270 180 145 45
AT 654 4 1367 900 180 167 270 180 145 45
52
AT 655 5 1547 990 225 212 270 180 145 45
AT 656 6 1727 1080 270 257 270 180 145 45
AT 657 7 1907 1170 315 302 270 180 145 45
AT 672 2 1227 900 90 77 330 260 225 45
AT 673 3 1407 990 135 122 330 260 225 45
AT 674 4 1587 1080 180 167 330 260 225 45
72,5
AT 675 5 1767 1170 225 212 330 260 225 45
AT 676 6 1947 1260 270 257 330 260 225 45 For "L" please specify
AT 677 7 2127 1350 315 302 330 260 225 45

010-AT-03
Rev. 02 - 27/02/2015

LDT-010 Pag. 9/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE AT

- De-energized operation
- For oil immersed transformer
- Bridge connection
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 600 A
- From 2 to 7 positions
- Regulation 2,5% per position Dimension in mm

Thickness
6,5

9 (4x)

Cover
(2x)

Drive 070-1.12.130
Y-Y
= =
40
3

18 50 12 SHAFT 14

L
15 80
10 ±2
82,6 (3x)

95
X

15
G+40
G
Y
= =
60

80

51
Y
B1 100 26
B2 126
A
126
23 80 23

54°
77 3

80
9

= =
9 (2x) DET. X
85,5

75
120
Z 77,5 77,5 45
15 H C F C F C E D

010-AT-07
Rev. 00 - 27/02/2015

LDT-010 Pag. 10/33

 DETC DOUBLE THREE-PHASE TAP CHANGERS SERIES 010 TYPE AT

- De-energized operation
- For oil immersed transformer
- Bridge connection
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- From 2 to 6 positions
- Regulation 2,5% per position Dimension in mm

1.12.130 =60°

10 ±2

15
14 X

L
77

50 *T=100 G+40
G
= =
60

80
180
80
B 89 51
A 140

9 37 9
9

30 80 30
59

59 21
80
21

55 55
Z
30 C F C F C E D 9 (2x)
DET. X

*Standard dimension T= 100. For special applications see pag. 010-05

TIPO KV POS. A B C D E F G Z
AT 202D 2 546 355 63 61,5 120,5 72,5 45 31,5
AT 203D 3 672 418 94,5 93 120,5 72,5 45 31,5
AT 204D 24 4 798 481 126 124,5 120,5 72,5 45 31,5
AT 205D 5 924 544 157,5 156 120,5 72,5 45 31,5
AT 206D 6 1050 607 189 187,5 120,5 72,5 45 31,5
AT 302D 2 635,5 430 63 61,5 150 102,5 105 31,5
AT 303D 3 761,5 493 94,5 93 150 102,5 105 31,5
AT 304D 36 4 887,5 556 126 124,5 150 102,5 105 31,5
AT 305D 5 1013,5 619 157,5 156 150 102,5 105 31,5
AT 306D 6 1139,5 682 189 187,5 150 102,5 105 31,5
AT 502D 2 825,5 589 63 61,5 215 165 145 31,5
AT 503D 3 951,5 652 94,5 93 215 165 145 31,5
AT 504D 52 4 1077,5 715 126 124,5 215 165 145 31,5
AT 505D 5 1203,5 778 157,5 156 215 165 145 31,5
AT 506D 6 1329,5 841 189 187,5 215 165 145 31,5
AT 702D 2 1110,5 826 63 61,5 310 260 225 31,5
AT 703D 3 1236,5 889 94,5 93 310 260 225 31,5
AT 704D 72,5 4 1362,5 952 126 124,5 310 260 225 31,5
AT 705D 5 1488,5 1015 157,5 156 310 260 225 31,5 For "L" please specify
AT 706D 6 1614,5 1078 189 187,5 310 260 225 31,5

010-AT-04
Rev. 02 - 27/02/2015

LDT-010 Pag. 11/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE ATC

- De-energized operation
- For oil immersed transformer
- Linear connection with a common for each phase
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- From 2 to 6 positions
- Regulation 2,5% per position Dimension in mm

1.12.120
1.12.130
=60°
Y
==

15
)
9 (2x 14 X

L
86

40 G+40
G
= =
60

80
B
A

110
9 37 9
9

87 23
15
110
80

59
80

DET. X
15

21

Z 55 55

10 50 C F C F C E D

TIPO KV POS. A B C D E F G Z Y
ATC 202 2 481,5 292 31,5 61,5 120,5 72,5 45 31,5 35x12
ATC 203 3 607,5 355 63 93 120,5 72,5 45 31,5 35x12
ATC 204 24 4 733,5 418 94,5 124,5 120,5 72,5 45 31,5 35x12
ATC 205 5 859,5 481 126 156 120,5 72,5 45 31,5 35x12
ATC 206 6 985,5 544 157,5 187,5 120,5 72,5 45 31,5 35x12
ATC 302 2 571 367 31,5 61,5 150 102,5 105 31,5 35x12
ATC 303 3 697 430 63 93 150 102,5 105 31,5 35x12
ATC 304 36 4 823 493 94,5 124,5 150 102,5 105 31,5 35x12
ATC 305 5 949 556 126 156 150 102,5 105 31,5 35x12
ATC 306 6 1075 619 157,5 187,5 150 102,5 105 31,5 35x12
ATC 502 2 761 526 31,5 61,5 215 165 145 31,5 35x12
ATC 503 3 887 589 63 93 215 165 145 31,5 35x12
ATC 504 52 4 1013 652 94,5 124,5 215 165 145 31,5 35x12
ATC 505 5 1139 715 126 156 215 165 145 31,5 35x12
ATC 506 6 1265 778 157,5 187,5 215 165 145 31,5 35x12
ATC 702 2 1046 763 31,5 61,5 310 260 225 31,5 35x12
ATC 703 3 1172 826 63 93 310 260 225 31,5 35x12
ATC 704 72,5 4 1298 889 94,5 124,5 310 260 225 31,5 35x12
ATC 705 5 1424 952 126 156 310 260 225 31,5 35x12 For "L" please specify
ATC 706 6 1550 1015 157,5 187,5 310 260 225 31,5 35x12

010-ATC-01
Rev. 01 - 27/02/2015

LDT-010 Pag. 12/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE ATC

- De-energized operation
- For oil immersed transformer
- Linear connection with a common for each phase
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- From 7 to 9 positions
- Regulation 2,5% per position Dimension in mm

070-1.12.120 =38°
or 070-1.12.130

25

14
Y

L
==

15
)
86 (3x)

9 (2x
X

40 G+40
G
= =

80
60

B
A

80
15

9
110
80

75
120
45
15

Z
77,5 77,5
10 50 C F C F C E D
110
105 5

DET. X

TIPO KV POS. A B C D E F G Z Y
ATC 207 7 1136 630 189 221 143 72,5 45 31,5 35x12
ATC 208 24 8 1262 693 220,5 252,5 143 72,5 45 31,5 35x12
ATC 209 9 1388 756 252 284 143 72,5 45 31,5 35x12
ATC 307 7 1225,5 704 189 221 172,5 102,5 105 31,5 35x12
ATC 308 36 8 1351,5 767 220,5 252,5 172,5 102,5 105 31,5 35x12
ATC 309 9 1477,5 830 252 284 172,5 102,5 105 31,5 35x12
ATC 507 7 1415,5 863 189 221 237,5 165 145 31,5 35x12
ATC 508 52 8 1541,5 926 220,5 252,5 237,5 165 145 31,5 35x12
ATC 509 9 1667,5 989 252 284 237,5 165 145 31,5 35x12
ATC 707 7 1700,5 1101 189 221 332,5 260 225 31,5 35x12
ATC 708 72,5 8 1826,5 1164 220,5 252,5 332,5 260 225 31,5 35x12 For "L" please specify
ATC 709 9 1952,5 1227 252 284 332,5 260 225 31,5 35x12

010-ATC-02
Rev. 02 - 27/02/2015

LDT-010 Pag. 13/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE ATC

- De-energized operation
- For oil immersed transformer
- Linear connection with a common for each phase
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 600 A
- From 2 to 7 positions
- Regulation 2,5% per position Dimension in mm

1.12.130 =54°

Y
==
x)

15
9 (2 X
14

L
84

40 G+40
G
= =

80
60

B
A

80
15

9
118
88

75
120
45
15

118
113 5
Z 77,5 77,5
10 50 C F C F C E D

DET. X

TIPO KV POS. A B C D E F G Z Y
ATC 622 2 602 380 45 77 170 80 45 45 35x12
ATC 623 3 782 470 90 122 170 80 45 45 35x12
ATC 624 4 962 560 135 167 170 80 45 45 35x12
24
ATC 625 5 1142 650 180 212 170 80 45 45 35x12
ATC 626 6 1322 740 225 257 170 80 45 45 35x12
ATC 627 7 1502 830 270 302 170 80 45 45 35x12
ATC 632 2 752 505 45 77 220 130 105 45 35x12
ATC 633 3 932 595 90 122 220 130 105 45 35x12
ATC 634 4 1112 685 135 167 220 130 105 45 35x12
36
ATC 635 5 1292 775 180 212 220 130 105 45 35x12
ATC 636 6 1472 865 225 257 220 130 105 45 35x12
ATC 637 7 1652 955 270 302 220 130 105 45 35x12
ATC 652 2 902 630 45 77 270 180 145 45 35x12
ATC 653 3 1082 720 90 122 270 180 145 45 35x12
ATC 654 4 1262 810 135 167 270 180 145 45 35x12
52
ATC 655 5 1442 900 180 212 270 180 145 45 35x12
ATC 656 6 1622 990 225 257 270 180 145 45 35x12
ATC 657 7 1802 1080 270 302 270 180 145 45 35x12
ATC 672 2 1122 810 45 77 330 260 225 45 60x15
ATC 673 3 1302 900 90 122 330 260 225 45 60x15
ATC 674 4 1482 990 135 167 330 260 225 45 60x15
72,5
ATC 675 5 1662 1080 180 212 330 260 225 45 60x15
ATC 676 6 1842 1170 225 257 330 260 225 45 60x15 For "L" please specify
ATC 677 7 2022 1260 270 302 330 260 225 45 60x15

010-ATC-03
Rev. 01 - 27/02/2015

LDT-010 Pag. 14/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE ATS

- De-energized operation
- For oil immersed transformer
- Wye connection with take off terminal
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- From 2 to 6 positions
- Regulation 2,5% per position Dimension in mm

1.12.120
1.12.130 =60°

Y
== )
9 (2x

15
14 X

L
86

40 G+40
G
= =
60

80
B
A

9 37 9
9
15

110
87 23
110
80

59
80
21
15

Z 55 55
DET. X
10 50 C F C F C E D

TIPO KV POS. A B C D E F G Z Y
ATS 202 2 481,5 292 31,5 61,5 120,5 72,5 45 31,5 35x12
ATS 203 3 607,5 355 63 93 120,5 72,5 45 31,5 35x12
ATS 204 24 4 733,5 418 94,5 124,5 120,5 72,5 45 31,5 35x12
ATS 205 5 859,5 481 126 156 120,5 72,5 45 31,5 35x12
ATS 206 6 985,5 544 157,5 187,5 120,5 72,5 45 31,5 35x12
ATS 302 2 571 367 31,5 61,5 150 102,5 105 31,5 35x12
ATS 303 3 697 430 63 93 150 102,5 105 31,5 35x12
ATS 304 36 4 823 493 94,5 124,5 150 102,5 105 31,5 35x12
ATS 305 5 949 556 126 156 150 102,5 105 31,5 35x12
ATS 306 6 1075 619 157,5 187,5 150 102,5 105 31,5 35x12
ATS 502 2 761 526 31,5 61,5 215 165 145 31,5 35x12
ATS 503 3 887 589 63 93 215 165 145 31,5 35x12
ATS 504 52 4 1013 652 94,5 124,5 215 165 145 31,5 35x12
ATS 505 5 1139 715 126 156 215 165 145 31,5 35x12
ATS 506 6 1265 778 157,5 187,5 215 165 145 31,5 35x12
ATS 702 2 1046 763 31,5 61,5 310 260 225 31,5 35x12
ATS 703 3 1172 826 63 93 310 260 225 31,5 35x12
ATS 704 72,5 4 1298 889 94,5 124,5 310 260 225 31,5 35x12
ATS 705 5 1424 952 126 156 310 260 225 31,5 35x12 For "L" please specify
ATS 706 6 1550 1015 157,5 187,5 310 260 225 31,5 35x12

010-ATS-01
Rev. 01 - 27/02/2015

LDT-010 Pag. 15/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE ATS

- De-energized operation
- For oil immersed transformer
- Wye connection with take off terminal
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- From 7 to 9 positions
- Regulation 2,5% per position Dimension in mm

1.12.120 =38°
1.12.130

Y
== x)
9 (2
86 (3x)

15
14
X

40 G+40
G
= =

80
60

B
A

80
15

9
110
80

75
120
45
15

Z 77,5 77,5
10 50 C F C F C E D

110
105 5

DET. X

TIPO KV POS. A B C D E F G Z Y
ATS 207 7 1136 630 189 221 143 72,5 45 31,5 35x12
ATS 208 24 8 1262 693 220,5 252,5 143 72,5 45 31,5 35x12
ATS 209 9 1388 756 252 284 143 72,5 45 31,5 35x12
ATS 307 7 1225,5 704 189 221 172,5 102,5 105 31,5 35x12
ATS 308 36 8 1351,5 767 220,5 252,5 172,5 102,5 105 31,5 35x12
ATS 309 9 1477,5 830 252 284 172,5 102,5 105 31,5 35x12
ATS 507 7 1415,5 863 189 221 237,5 165 145 31,5 35x12
ATS 508 52 8 1541,5 926 220,5 252,5 237,5 165 145 31,5 35x12
ATS 509 9 1667,5 989 252 284 237,5 165 145 31,5 35x12
ATS 707 7 1700,5 1101 189 221 332,5 260 225 31,5 35x12
ATS 708 72,5 8 1826,5 1164 220,5 252,5 332,5 260 225 31,5 35x12 For "L" please specify
ATS 709 9 1952,5 1227 252 284 332,5 260 225 31,5 35x12

010-ATS-02
Rev. 02 - 27/02/2015

LDT-010 Pag. 16/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE ATS

- De-energized operation
- For oil immersed transformer
- Wye connection with take off terminal
- 24 kV / 36 kV / 52 kV / 72,5 kV
- 600 A
- From 2 to 7 positions
- Regulation 2,5% per position Dimension in mm

1.12.130 =54°

Y
==

15
)
9 (2x X
14

L
84

40 G+40
G
= =

80
60

B
A

80
15

9
118
88

75
120
45
15

118
113 5
45 77,5 77,5

10 50 C F C F C E D

DET. X

TIPO KV POS. A B C D E F G Z Y
ATS 622 2 602 380 45 77 170 80 45 45 35x12
ATS 623 3 782 470 90 122 170 80 45 45 35x12
ATS 624 4 962 560 135 167 170 80 45 45 35x12
24
ATS 625 5 1142 650 180 212 170 80 45 45 35x12
ATS 626 6 1322 740 225 257 170 80 45 45 35x12
ATS 627 7 1502 830 270 302 170 80 45 45 35x12
ATS 632 2 752 505 45 77 220 130 105 45 35x12
ATS 633 3 932 595 90 122 220 130 105 45 35x12
ATS 634 4 1112 685 135 167 220 130 105 45 35x12
36
ATS 635 5 1292 775 180 212 220 130 105 45 35x12
ATS 636 6 1472 865 225 257 220 130 105 45 35x12
ATS 637 7 1652 955 270 302 220 130 105 45 35x12
ATS 652 2 902 630 45 77 270 180 145 45 35x12
ATS 653 3 1082 720 90 122 270 180 145 45 35x12
ATS 654 4 1262 810 135 167 270 180 145 45 35x12
52
ATS 655 5 1442 900 180 212 270 180 145 45 35x12
ATS 656 6 1622 990 225 257 270 180 145 45 35x12
ATS 657 7 1802 1080 270 302 270 180 145 45 35x12
ATS 672 2 1122 810 45 77 330 260 225 45 60x15
ATS 673 3 1302 900 90 122 330 260 225 45 60x15
ATS 674 4 1482 990 135 167 330 260 225 45 60x15
72,5
ATS 675 5 1662 1080 180 212 330 260 225 45 60x15
ATS 676 6 1842 1170 225 257 330 260 225 45 60x15 For "L" please specify
ATS 677 7 2022 1260 270 302 330 260 225 45 60x15

010-ATS-03
Rev. 01 - 27/02/2015

LDT-010 Pag. 17/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE ATSP

- De-energized operation
- For oil immersed transformer
- Series parallel connection
- 10/20 kV - 15/30 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- 2 positions
Dimension in mm

1.12.120
1.12.130 =60°

10 ±2

15
14

L
X
77

50 G+40
G
= =

80
60

B 100 26
A 126

80
9
75
120
45

Z
77,5 77,5
30 C F C F C E D

23 80 23
77 3

9 (2x) DET. X

TIPO KV POS. A B C D E F G Z
ATSP 1020 10 / 20 2 995 648 200 82 143 70 45 50 For "L" please specify
ATSP 1530 15 / 30 2 1089 726 200 82 172 102,5 105 50

010-ATSP-01
Rev. 02 - 27/02/2015

LDT-010 Pag. 18/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE ATSP

- De-energized operation
- For oil immersed transformer
- Series parallel connection
- 10/20 kV - 15/30 kV
- 600 A
- 2 positions
Dimension in mm

1.12.130
=72°

10 ±2

15
14 X

L
82

50 G+40
G
= =

80
60

B 100 26
A 126

80
9

75
120
45
Z 77,5 77,5
30 C F C F C E D

23 80 23
77 3

9 (2x) DET. X

TIPO KV POS. A B C D E F G Z
ATSP 620 10 / 20 2 1172 770 240 92 170 80 45 60 For "L" please specify
ATSP 630 15 / 30 2 1322 895 240 92 220 130 105 60

010-ATSP-02
Rev. 02 - 27/02/2015

LDT-010 Pag. 19/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE ATST

- De-energized operation
- For oil immersed transformer
- Wye / delta connection
- 24 kV / 36 kV
- 120 A / 180 A / 200 A / 300 A / 330 A / 400 A / 420 A
- 2 positions
Dimension in mm

1.12.120
1.12.130

10 ±2

15
77 (3x)

L
14 X

50 G+40
G
= =
60

80
82 44
B
A

9 37 9
9

59
80
21
23

Z 55 55
30 C F C F C E D

126
23 80 23
59 21

9 (2x) DET. X

TIPO KV POS. A B C D E F G Z
ATST 202 24 2 857,5 533 152 106 120,5 72,5 45 76 145° For "L" please specify
ATST 302 36 2 1115 704 200 130 150 102,5 105 100 190°

010-ATST-01
Rev. 01 - 27/02/2015

LDT-010 Pag. 20/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010 TYPE ATST

- De-energized operation
- For oil immersed transformer
- Wye / delta connection
- 24 kV / 36 kV
- 600 A
- 2 positions
Dimension in mm

1.12.130

10 ±2
82 (3x)

15
X

L
14

50 G+40
G
= =

80
60

100 55
B
155
A

80
= =
9

75
120
45
5

Z 77,5 77,5
30 C F C F C E D

126
23 80 23
77 3

9 (2x) DET. X

TIPO KV POS. A B C D E F G Z
ATST 622 24 2 952 610 160 112 170 80 45 80 96° For "L" please specify
ATST 632 36 2 1452 935 260 162 220 130 105 130 156°

010-ATST-02
Rev. 01 - 27/02/2015

LDT-010 Pag. 21/33

 BRASS FIXED CONTACTS SERIES 010 - 120 A / 200 A / 300 A / 400 A

Dimension in mm

Max. current Turning torque

TYPE ØJ S L
Amp. N·m (Max.)
15

CAP 8 120 M8 13 31 15
CAP 10 200 M10 17 35 25
S CAP 12 300 M12 19 40 35
CAP 14 400 M14 22 45 45
L

Max. 5

Max. 25,4 Max. 25,4

60

INSULATION TESTS AT THE LABORATORY

NOMINAL RATED APPLIED POTENTIAL TEST AT 50 HERTZ FOR 5 MINUTES

D VOLTAGE
mm NO FLASH OVER FLASH OVER
kV
kV kV
31,5 12 22 34
40 17,5 38 60
50 20 45 68

010-01
Rev. 01 - 27/02/2015

LDT-010 Pag. 22/33

 COPPER FIXED CONTACTS SERIES 010 - 600 A

Dimension in mm

Max. current Turning torque

TYPE ØJ S L
15

Amp. N·m (Max.)

CAP 16 600 M16 24 49 60
S
L

Max. 5

Max. 28 Max. 28
60

INSULATION TESTS AT THE LABORATORY

NOMINAL RATED APPLIED POTENTIAL TEST AT 50 HERTZ FOR 5 MINUTES

D VOLTAGE
mm NO FLASH OVER FLASH OVER
kV
kV kV
45 12 22 54
50 17,5 38 60
60 24 50 65

010-02
Rev. 01 - 27/02/2015

LDT-010 Pag. 23/33

 COPPER FIXED CONTACTS FOR SOLDERING (or BRAZING)
or FOR CRIMPING SERIES 010 - 180 A / 330 A / 420 A

Dimension in mm

The fixed contacts are removable for soldering (or brazing) by pushing, one at the time, while unthreading the pin which
secures each of them in place.

Fixed contact
Cylindrical pin
Nylon glass bushing Max. current
TYPE ØJ ØX
Amp.
15

SAL 10 180 11 14
SAL 13 330 13,5 18
Spring SAL 15 420 15,5 20
Nylon glass bushing
52

25

J
X

Max. 20 Max. 20
60

INSULATION TEST A) CESI OF MILANO

B) AT THE LABORATORY
C) INSTITUTE GALILEO FERRARIS
D APPLIED POTENTIAL TEST AT 50 HERTZ FOR 1 MINUTE IMPULSE TEST
mm

31,5 22 kV (A) 75 kV (A)

40 38 kV (B) --
60 70 kV (B) 200 kV (C)

010-03
Rev. 01 - 27/02/2015

LDT-010 Pag. 24/33

 FLAG COPPER CONTACTS SERIES 010 - 400 A / 600 A

Dimension in mm

16

Fixed contact

Cylindrical pin
30

Nylon glass bushing

15

Nylon glass bushing

109

13

Spring
64

=
Copper shield
for spring

40
=
TYPE B16 (600 A)

SILVER PLATED TREATMENT

10 R 9 32 20
18 61

14
Fixed contact

Cylindrical pin
30

Nylon glass bushing

15
98

Nylon glass bushing

HOLE

Spring
53

=
30

Copper shield
for spring
=

TYPE B12 (400 A) HOLE Ø13

5 R 8,5 26 17,5 TYPE B14 (400 A) HOLE Ø15

17 52

010-04
Rev. 02 - 27/02/2015

LDT-010 Pag. 25/33

 TAP CHANGER COUPLING SERIES 010 "AT - ATC - ATS - ATSP - ATST"

Dimension in mm

40
T= 100
20

40

For special applications, a stacking arrangement can be utilised for the off-circuit tap selectors.
Decks can be also 3 or more.
Dimension T can be increased for insulation purposes. Do not use drive 1.12.120
With flag contacts B16 (600 A) T min.= 120 mm.

010-05
Rev. 02 - 27/02/2015

LDT-010 Pag. 26/33

 TORQUES FOR COMMON CONTACTS SERIES 010

Dimension in mm

Max. 5
S 2

L
1

15
8 x15
120 / 400 A

Turning torque Turning torque

Max. current
ØJ Material S L NUT 1 NUT 2
Amp.
N·m (Max.) N·m (Max.)
M8 120 Brass 13 31 15
M10 200 Brass 17 35 25
15
M12 300 Brass 19 40 35
M14 400 Brass 22 45 45
M16 600 Copper 24 49 30 60

J
Max. 5

2
L

1
S
15
15

600 A

010-06
Rev. 01 - 27/02/2015

LDT-010 Pag. 27/33

 DETC THREE-PHASE TAP CHANGERS SERIES 010

- CODE CONSTRUCTION

Example: 070 - 10 . LAYOUT 2AI . S

Variant 1 Variant 2 Variant 3

SERIES LAYOUT TRANSMISSIONS
1A
1AI
S Standard shafts
1B
1BI
1C
1CI
FL Insulating "L" shaft
1D
1DI

2A
2AI
2B S Standard shafts
2BI
2C
2CI
10
2D
2DI FL Insulating "L" shaft
2E
2EI

3A
3AI
3B S Standard shafts
3BI
3C
3CI
3D
3DI FL Insulating "L" shaft
3E
3EI

010-07
Rev. 02 - 12/10/2015

LDT-010 Pag. 28/33

 070-10.LAYOUT1
ASSEMBLY DIAGRAM WITH DRIVE ON TANK COVER

Dimension in mm

LAYOUT 1A LAYOUT 1AI

1 1
X X X X

Y Z Y Z

LAYOUT 1B LAYOUT 1BI

1
1
X X X X

Y Z Y Z

2 2

LAYOUT 1C LAYOUT 1CI

1
1
X X X X

Y Z Y
Z

2 2

LAYOUT 1D LAYOUT 1DI

Ma
x. 45°

1 1
X X X X

3 3

Y Z Y Y

LEGEND STANDARD DRIVES AND BEVEL GEARS

X= Tank cover. 1= Drive 1.12.120, 1.12.130 or 1.12.408.
Y= Short tank sidewall. 2= Bevel gear 1.12.106.
Z= Long tank sidewall. 3= Precision joint 05S.

010-08
Rev. 00 - 06/03/2015

LDT-010 Pag. 29/33

 070-10.LAYOUT2
ASSEMBLY DIAGRAM WITH DRIVE ON LONG TANK SIDEWALL

Dimension in mm

LAYOUT 2A LAYOUT 2AI

X X X
X

1
45 3 1
Y
30 Y
2
86 40
166
40

Z Z
159 180 60
L min.= 414

LAYOUT 2B LAYOUT 2BI

X X X X

1 1
45 3 Y 3
30
Y

Z Z
70 180 60
80 L min.= 325

LAYOUT 2C LAYOUT 2CI

166 X X
X X L min.= 414
40 86 40

1 1
159 3 Y 3

2 30 2
45
Y Z
Z

180 60

LEGEND STANDARD DRIVES AND BEVEL GEARS

X= Tank cover. 1= Drive 1.12.408.
Y= Short tank sidewall. 2= Bevel gear 1.12.106.
Z= Long tank sidewall. 3= Friction 1.12.211.

010-09
Rev. 00 - 06/03/2015

LDT-010 Pag. 30/33

 070-10.LAYOUT2
ASSEMBLY DIAGRAM WITH DRIVE ON LONG TANK SIDEWALL

Dimension in mm

LAYOUT 2D LAYOUT 2DI

180 60

Y Y
Z Z
45 4
2 30 2

159
3 3
4
40 86 40 L min.= 414
W W W W
166

LAYOUT 2E LAYOUT 2EI

X X
X X

1 1
45 3
86 40

3
30
166
40

2 Y 2
Y Z Z
159 180 60
L min.= 414

LEGEND STANDARD DRIVES AND BEVEL GEARS

X= Tank cover. 1= Drive 1.12.408.
Y= Short tank sidewall. 2= Bevel gear 1.12.106.
Z= Long tank sidewall. 3= Friction 1.12.211.
W= Tank bottom. 4= Drive 1.12.409

010-10
Rev. 00 - 06/03/2015

LDT-010 Pag. 31/33

 070-10.LAYOUT3
ASSEMBLY DIAGRAM WITH DRIVE ON SHORT TANK SIDEWALL

Dimension in mm

LAYOUT 3A LAYOUT 3AI

X X
X X
1
45
3 Z 1
2 30
3 Z
2

86 40
166
40
Y
Y
159 180 60
L min.= 414

LAYOUT 3B LAYOUT 3BI

X X
X X

1 1
45 3 Z 3 Z
30

2 40 86 40 Y 2
Y
166
159 180 60
L min.= 414

LAYOUT 3C LAYOUT 3CI

80 L min.= 325 X X
X X

1 1
70 3 3
Z Z

30
45
Y
Y

180 60

LEGEND STANDARD DRIVES AND BEVEL GEARS

X= Tank cover. 1= Drive 1.12.408.
Y= Short tank sidewall. 2= Bevel gear 1.12.106.
Z= Long tank sidewall. 3= Friction 1.12.211.

010-11
Rev. 00 - 06/03/2015

LDT-010 Pag. 32/33

 070-10.LAYOUT3
ASSEMBLY DIAGRAM WITH DRIVE ON SHORT TANK SIDEWALL

Dimension in mm

LAYOUT 3D LAYOUT 3DI

180 60

Y Y
4 4
45
30

Z Z
70
3 3

80 L min.= 325 W
W W W

LAYOUT 3E LAYOUT 3EI

X X X X

1 1 3
15
86 40

3
30
166
40

2 2
Y Z
Y Z

159 180 60
L min.= 414

LEGEND STANDARD DRIVES AND BEVEL GEARS

X= Tank cover. 1= Drive 1.12.408.
Y= Short tank sidewall. 2= Bevel gear 1.12.106.
Z= Long tank sidewall. 3= Friction 1.12.211.
W= Tank bottom. 4= Drive 1.12.409

010-12
Rev. 00 - 06/03/2015

LDT-010 Pag. 33/33