SIST EN 50180:2010

SLOVENSKI STANDARD
SIST EN 50180:2010
01-november-2010
1DGRPHãþD
SIST EN 50180:1997
6NR]QMLNL]DQDSHWRVWLQDGN9GRN9LQWRNRYHRG$GRN$]D
WUDQVIRUPDWRUMHSROQMHQHVWHNRþLQDPL
Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers
Durchführungen über 1 kV bis 52 kV und von 250 A bis 3,15 kA für flüssigkeitsgefüllte
Transformatoren
Traversées de tensions supérieures à 1 kV jusqu'à 52 kV et de 250 A à 3,15 kA pour
transformateurs à remplissage de liquide
Ta slovenski standard je istoveten z: EN 50180:2010
ICS:
29.080.20 Skoznjiki Bushings
29.180 Transformatorji. Dušilke Transformers. Reactors
SIST EN 50180:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 50180:2010

---------------------- Page: 2 ----------------------

SIST EN 50180:2010

EUROPEAN STANDARD
EN 50180

NORME EUROPÉENNE
September 2010
EUROPÄISCHE NORM

ICS 29.080.20 Supersedes EN 50180:1997


English version


Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA
for liquid filled transformers



Traversées de tensions supérieures à Durchführungen über 1 kV bis 52 kV
1 kV jusqu'à 52 kV et de 250 A à 3,15 kA und von 250 A bis 3,15 kA
pour transformateurs immergés dans für flüssigkeitsgefüllte Transformatoren
un liquide





This European Standard was approved by CENELEC on 2010-09-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50180:2010 E

---------------------- Page: 3 ----------------------

SIST EN 50180:2010
EN 50180:2010 - 2 -
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 36A, Insulated bushings. It
was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50180 on
2010-09-01.
This document supersedes EN 50180:1997.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights.
The following dates are proposed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-09-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-09-01

__________

---------------------- Page: 4 ----------------------

SIST EN 50180:2010
- 3 - EN 50180:2010
Contents
Introduction . 5
1 Scope. 5
2 Normative references . 5
3 Definitions . 5
4 Requirements . 6
4.1 Application . 6
4.2 Standard values of maximum voltage (U ) . 6
m
4.3 Standard values of rated current (I ) . 6
r
4.4 Compliance . 6
4.5 Common dimensions . 6
4.6 Detail dimensions and creepage distances of open type bushings . 7
4.7 Detail dimensions of plug-in type bushings . 19

Annex A (normative) Detail drawings of porcelain . 26
Figures
Figure 1 - Common dimensions for open and plug-in type bushings .7
Figure 2 - 250 A types 12 to 36 kV .8
Figure 3 - 630 A types 12 to 36 kV . 10
Figure 4 – 1 250 A types 12 to 36 kV . 12
Figure 5 – 2 000 A – 3 150 A types 12 to 36 kV . 14
Figure 6 - 250 A – 630 A types 52 kV . 16
Figure 7 – 1 250 A – 2 000 A – 3 150 A types 52 kV . 18
Figure 8 - Outside cone plug-in type bushings . 20
Figure 9 - Details of outside cone plug-in type bushings . 22
Figure 10 - Inside cone plug-in type bushings . 24
Figure 11 - Details of inside cone plug-in type bushings . 25
Figure A.1 - Insulator (item N°.1), type 1 . 26
Figure A.3 - Insulator (Item n°1), type 3 . 26
Figure A.2 - Insulator (Item n°1), type 2 . 26
Figure A.4 - Insulator (Item n°1), type 4 . 27
Figure A.5 - Insulator (Item n°1), type 5 . 27
Figure A.6 - Insulator (Item n°1), type 6 . 28
Figure A.7 - Insulator (Item n°1), type 7 . 28
Figure A.8 - Insulator (Item n°1), type 8 . 29
Figure A.9 - Insulator (Item n°1), type 9 . 29
Calculated nominal distance AB of represented insulator 760 mm . 29
Calculated nominal creepage distance AB of represented insulator 1155 mm. . 29
Figure A.10 - Insulator (Item n°1), type 21 . 30
Figure A.11 - Insulator (Item n°1), type 22 . 30
Figure A.12 - Insulator (Item n°1), type 23 & 23M . 31
Figure A.13 - Insulator (Item n°1), type 24 & 24M . 31
Figure A.14 - Insulator (Item n°1), type 25 . 32
Figure A.15 - Insulator (Item n°1), type 26 . 32
Figure A.16 - Insulator (Item n°1), type 27&27M . 33
Figure A.17 - Insulator (Item n°1), type 28 & 28M . 33
Figure A.18 - Insulator (Item n°1), type 29 . 34
Figure A.19 - Insulator (Item n°1), type 30 . 35
Figure A.20 - Insulator (Item n°1), type 31 . 35

---------------------- Page: 5 ----------------------

SIST EN 50180:2010
EN 50180:2010 - 4 -
Figure A.21 - Adjusting ring . 37

Tables
Table 1 - Common dimensions for open and plug-in type bushings .7
Table 2 - Dimensions, 250 A types 12 to 36 kV .9
Table 3 - List of components, 250 A types 12 to 36 kV .9
Table 4 - Dimensions, 630 A types 12 to 36 kV . 10
Table 5 - List of components - 630 A types 12 to 36 kV . 11
Table 6 - Dimensions, 1 250 A types 12 to 36 kV . 13
Table 7 - List of components, 1 250 A types 12 to 36 kV . 13
Table 8 - Dimensions, 2 000 A – 3 150 A types 12 to 36 kV . 15
Table 9 - List of components 2 000 A – 3 150 A types 12 to 36 kV . 15
Table 10 - Dimensions, 250 A - 630 A types 52 kV . 17
Table 11 - List of components 250 A - 630 A types 52 kV . 17
Table 12 - Dimensions, 1 250 A – 2 000 A – 3 150 A types 52 kV . 19
Table 13 - List of components 1 250 A – 2000 A – 3 150 A types 52 kV . 19
Table 14 - Interface dimensions . 21
Table 15 - Bushing dimensions . 23
Table 16 - Interface dimensions . 24
Table 17 - Interface dimensions . 25

---------------------- Page: 6 ----------------------

SIST EN 50180:2010
- 5 - EN 50180:2010
Introduction

The object of this European Standard is to specify the requirements to ensure interchangeability of bushings
having highest voltages above 1 kV up to 52 kV and rated currents from 250 A up to 3 150 A for insulating
liquid filled transformers.

1 Scope

This European Standard is applicable to ceramic and resin insulated bushings having highest voltages above 1
kV up to 52 kV, rated currents from 250 A up to 3 150 A and frequencies from 15 Hz up to 60 Hz for insulating
liquid filled transformers.

This standard establishes essential dimensions, to ensure interchangeability of bushings and to ensure
adequate mounting and interchangeability of mating plug-in separable connectors of equivalent ratings.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.

EN 62155, Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment
with rated voltages greater than 1 000 V (IEC 62155)

EN 60672-3, Ceramic and glass-insulating materials - Part 3: Specifications for individual materials
(IEC 60672-3)

EN 60137, Bushings for alternating voltages above 1 000 V (IEC 60137)

IEC 60815, Selection and dimensioning of high-voltage insulators intended for use in polluted conditions

1)
IEC Guide 109 and Cenelec TC 111X document , Environmental aspects - Inclusion in electrotechnical
product standards

NOTE It is highly recommended to minimize the impact of bushings on the environment during all phases of their life (including
manufacturing, operation during service life, dismantling after their end of life and disposal or recycling).

IEC Guide 109 and document by CENELEC TC 111X “Environmental standardization for electrical and electronic products and systems”
after finalization can be used as helpful reference.

3 Definitions
For the purposes of this document, the following terms and definitions apply.

3.1
open type bushing
a bushing, one end of which is immersed in an insulating liquid with the other end in ambient air and exposed
or not exposed to external atmospheric conditions

3.2
plug-in type bushing
a bushing, one end of which is immersed in an insulating medium and the other end designed to receive a
separable insulated cable connector without which the bushing cannot function


1)
Under development.

---------------------- Page: 7 ----------------------

SIST EN 50180:2010
EN 50180:2010 - 6 -
3.3
separable connector
a fully insulated termination permitting the connection and disconnection of the cable to and from the mating
plug-in type bushing

3.4
interface type
bushing dimensions that insure mechanical and electrical interchangeability of bushing and separable
connector of similar rating and type. Each interface type is designated by a letter or a number

3.5
bail holder
a fixture which facilitates anchoring of an externally mounted device (called the bail) designed to prevent
undesirable separation of a separable connector and a bushing. A bail holder may or may not be an integral
part of a bushing and is an optional feature

4 Requirements
4.1 Application
Open type bushings covered by this standard shall be suitable for operation with one end fully immersed in an
insulating liquid and with the other in air.

Plug-in type bushings covered by this standard shall be suitable for operation with one end partially or fully
immersed in an insulating medium and with the other in a separable connector.
4.2 Standard values of maximum voltage (U )
m
The value of U of a bushing shall be chosen from the standard values of the highest voltage for equipment U
m m
as given below, in kilovolts:
12 - 24 - 36 - 52
4.3 Standard values of rated current (I )
r
The value of I of a bushing shall be chosen from the standard values given below, in amperes:
r

250 - 400 - 630 - 800 -1250 - 2000 - 3150
4.4 Compliance
Bushings shall meet the requirements of EN 60137.
4.5 Common dimensions
The dimensions necessary for interchangeability between open and plug-in type bushings shall be as specified
in Figure 1 and Table 1.

---------------------- Page: 8 ----------------------

SIST EN 50180:2010
- 7 - EN 50180:2010

NOTE For open type bushings the internal connection may be a flexible conductor or a stem.

Figure 1 - Common dimensions for open and plug-in type bushings

Table 1 - Common dimensions for open and plug-in type bushings
  +2
I U d d / / /
r m 1  d 0 3 1 2 3
2
max. max.
A kV mm mm mm mm mm mm
 0 0 0 0
250 12-36   77 80 111 145 25 45
  -5  -7  -2
    0     0 0
400-630 12-36 87 90 128 195 25 75
    -6     -8  -2
      0     0 0
800-1 250 12-36 107 110 165 215 30 100
 -7 -10  -2
     0     0 0
2 000-3 150 12-36 132 135 185 215 30 100
     -8     -11  -2
     0     0  +2
250-3 150 52 132 135 185 320 35 100
     -8     -11  -2

4.6 Detail dimensions and creepage distances of open type bushings
4.6.1 General recommendations

The dimensions necessary for interchangeability of open type bushings shall be as specified in the following
figures (figure 2 up to figure 7) and tables (table 2 up to table 13).

---------------------- Page: 9 ----------------------

SIST EN 50180:2010
EN 50180:2010 - 8 -

These figures do not purport to show constructional details. The provision for arcing horns should be made if
required.

Customized bushings are subject to an agreement between purchaser and manufacturer.

As a special requirement, bushings of 36 kV can be ordered with metallization or equivalent of the flange collar
with extension “M” in the designation. The creepage distance, as indicated in the different tables of this
standard, will be reduced of approximately 100 mm.

NOTE  52 kV bushings are always with metallization or equivalent solution.

4.6.2 250 A types 12 to 36 kV
Insulator types for 250 A may be clamped to the transformer tank using either the fixation method illustrated or
a separate insulation piece on the inside of the tank.

This drawing does not purport to show constructional details.
All dimensions in mm

← - - → arcing distance AC
· -------- · creepage distance AB

Figure 2 - 250 A types 12 to 36 kV

---------------------- Page: 10 ----------------------

SIST EN 50180:2010
- 9 - EN 50180:2010
Table 2 - Dimensions, 250 A types 12 to 36 kV
Arcing
Min. nominal creepage Insulator / / d d
4 5 4 5
U Distance
m
Distance AB (mm) type max. max. max. max.
AC
Designation
Pollution level
kV (IEC/TS 60815) mm mm mm mm mm
 b    c    d    e
12-250/P1 192
12 1 145 190 270 75 140
12-250/P2 240
12-250/P4 12  300 372
2 260 304 384 80 150
24-250/P2 24 384 480
24-250/P3 24  600
3 315 357 437 80 155
36-250/P1 36 576
24-250/P4 24  744
4 465 516 596 80 155
36-250/P3 36 720 900
36-250/P4 36  1 116 5 485 516 596 80 190


Table 3 - List of components, 250 A types 12 to 36 kV
Item Quantity Designation Remarks






1 1    Type 1
  1 1   Type 2
1   1 1  Insulator Type 3 Porcelain
   1 1 Type 4
     1 Type 5
a
2 1 Terminal stud Brass
a
3 1 Cap Brass
a Insulating liquid resistant
4 1 Gasket
material
a
5 1 Spacer
Insulating liquid resistant
a
6 1 Packing
material
7 3 Nut Brass
8 2 Washer Brass
9 As required Nut Corrosion-resistant
10 As required Washer Corrosion-resistant
11 1 Spring-washer Corrosion-resistant
Variant A: by means of clamping pieces
a
12 As required Clamping piece Corrosion-resistant
Variant B: by means of clamping ring
a
13 1 Clamping ring Corrosion-resistant
a
14 As required Clamping paw Corrosion-resistant
a
Constructional details are not covered by this standard.

12-250/P1
12-250/P2
12-250/P4
24-250/P2
24-250/P3
24-250/P4
36-250/P1
36-250/P3
36-250/P4

---------------------- Page: 11 ----------------------

SIST EN 50180:2010
EN 50180:2010 - 10 -
4.6.3 630 A types 12 to 36 kV
This drawing does not purport to show constructional details.

All dimensions in mm


← - - → arcing distance AC
· -------- · creepage distance AB
Figure 3 - 630 A types 12 to 36 kV
Table 4 - Dimensions, 630 A types 12 to 36 kV
Min. nominal creepage
U Arcing / / / d d
m 4 5 6 4  5
distance AB (mm)
Inulator distance max. max. max. max. max.
Designation
Pollution level
Type AC

kV (IEC/TS 60815)
mm mm mm mm mm mm

  b     c     d     e
12-630/P3 12 192 240 300 6 190 235 350 90 80 155
12-630/P4 12  372
7 285 325 440 90 85 170
24-630/P2 24 384 480
24-630/P4 24  600 744
8 375 423 540 100 85 180
36-630/P2 36 576 720
36-630/P4 36  900 1116 9 475 515 630 100 85 210

---------------------- Page: 12 ----------------------

SIST EN 50180:2010
- 11 - EN 50180:2010
Table 5 - List of components - 630 A types 12 to 36 kV
Item Quantity Designation Remarks







1   Type 6
 1 1  Type 7
Insulator Porcelain
1  1 1 Type 8
   1 Type 9
a
2 1 Terminal stud Brass
a
3 1 Cap Brass
Insulating liquid
a
4 1 Gasket
resistant material
a
5 1 Spacer
a Insulating liquid
6 1 Packing
resistant material
7 3 Nut Brass
8 2 Washer Brass
9 As required Nut Corrosion-resistant
10 As required Washer Corrosion-resistant
11 1 Spring-washer Corrosion-resistant
a
15 1 Gasket
a
16 1 Vent plug Brass
Variant A: by means of clamping pieces
a
12 As required Clamping piece Corrosion-resistant
Variant B: by means of clamping ring
a
13 1 Clamping ring Corrosion-resistant
a
14 As required Clamping paw Corrosion-resistant
a
Constructional details are not covered by this standard.

12-630/P3
12-630/P4
24-630/P2
24-630/P4
36-630/P2
36-630/P4

---------------------- Page: 13 ----------------------

SIST EN 50180:2010
EN 50180:2010 - 12 -
4.6.4 1 250 A types 12 to 36 kV
This drawing does not purport to show constructional details; it shows only an example for bottom end
connections.
Other designs are acceptable.

All dimensions in mm


← - - → arcing distance AC
· -------- · creepage distance AB
Figure 4 – 1 250 A types 12 to 36 kV

---------------------- Page: 14 ----------------------

SIST EN 50180:2010
- 13 - EN 50180:2010
Table 6 - Dimensions, 1 250 A types 12 to 36 kV
Min. nominal creepage d
6
U Arcing / / d
m 4 5 5
Distance AB (mm)

Insulator distance max. max. max.

Designation Pollution level
Type AB
kV (IEC/TS 60815) mm
mm mm mm mm
 b    c    d     e
12-1250/P4 12 192 240 300 372 21 215 260 415 210
24-1250/P3 24 384 480 600 22 280 325 480 210
24-1250/P4 24  744
23
36-1250/P3
36 23 385 420 575 240
36- 576 720 900 M30 x 2
36 23M
1250/P3M
36-1250/P4
24
36- 36  1116 500 535 690 240
24M
1250/P4M
NOTE Refer to point 4.6 for bushings with metallization or equivalent.

Table 7 - List of components, 1 250 A types 12 to 36 kV
Item Quantity Designation Remarks

1   Type 21
1  Type 22
1 Insulator Porcelain
 1 1 Type 23(M)
  1 Type 24(M)
a b
2 1 Terminal stud Copper
a
3 1 Nut Brass
a
4 1 Upper cap Brass
a Insulating liquid resistant
5 1 Sealing ring
material
a
6 1 Lower cap Brass
a
7 1 Gasket
a
8 1 Vent plug Brass
Insulating liquid resistant
a
9 1 Gasket
material
a
10 1 Spacer
a
11 1 Compression ring Brass
a
12 As required Screw with cone point
a
13 1 Ring Copper
14 As required Nut Corrosion-resistant
15 As required Washer Corrosion-resistant
a
16 1 Clamping ring Corrosion-resistant
a
17 As required Clamping paw Corrosion-resistant
a Insulating liquid resistant
18 1 Gasket
material
a
19 1 Conductor guide
a
Constructional details are not covered by this standard.
b
If brass is used the rated current I shall be reduced subject to an agreement.
r

12-1250/P4
24-1250/P3
24-1250/P4
36-1250/P3 (M)
36-1250/P4 (M)

---------------------- Page: 15 ----------------------

SIST EN 50180:2010
EN 50180:2010 - 14 -
4.6.5 2 000 A – 3 150 A types 12 to 36 kV
This drawing does not purport to show constructional details; it shows only an example for bottom end
connections.
Other designs are acceptable.
All dimensions in mm



← - - → arcing distance AC
· -------- · creepage distance AB

Figure 5 – 2 000 A – 3 150 A types 12 to 36 kV

---------------------- Page: 16 ----------------------

SIST EN 50180:2010
- 15 - EN 50180:2010
Table 8 - Dimensions, 2 000 A – 3 150 A types 12 to 36 kV
Min. nominal creepage Arcing / / / d d d
4 5 7 4 5 6
Distance AB (mm) Distanc max. max. max. max. max.
U Insu -
m
e
Designation lator
Pollution level AC
type
(IEC/TS 60815)
kV mm mm mm mm mm mm mm
  b    c    d     e
12-2000/P4 240 300 372 450 100 M42x3
12 192 25 210 260 120 230
12-3150/P4 240 300 372 470120 M48x3
24-2000/P3 480 600 515 100 M42x3
24 384 26 275 325 120 230
24-3150/P3 480 600 535120 M48x3
24-2000/P4  744 610 100 M42x3
24
24-3150/P4  744 630 120 M48x3
27
36-2000/P3  610100 M42x3

36-3150/P3 576 720 900 630120 M48x3
385 420 125 260
36
36-
  610 100 M42x3
2000/P3M
27 M
36-
  630 120 M48x3
3150/P3M
36-2000/P4 725 100
28
36-3150/P4 745 120 M42x3
M48x3
36-
36  1116 495 535 125 260
725 100
M42x3
2000/P4M
28 M
M48x3
36-
745 120
3150/P4M
NOTE Refer to point 4.6 for bushings with metallization or equivalent.

Table 9 - List of components 2 000 A – 3 150 A types 12 to 36 kV
Item Quantity Designation Remarks
1  Type 25
1 Type 26
1 Insulator Porcelain
 11 Type 27(M)
  1Type 28(M)
a b
2 1 Terminal stud Copper
a
3 1 Nut Brass
a
4 1 Upper cap Brass
a Insulating liquid resistant
5 1 Sealing ring
material
a
6 1 Lower cap Brass
a
7 1 Gasket
a
8 1 Vent plug Brass
a Insulating liquid resistant
9 1 Gasket
material
a
10 1 Spacer
a
11 1 Compression ring Brass
a
12 As required Screw with cone point
a
13 1 Ring Copper
14 As required Nut Corrosion-resistant
15 As required Washer Corrosion-resistant
a
16 1 Clamping ring Corrosion-resistant
a
17 As required Clamping paw Corrosion-resistant
a Insulating liquid resistant
18 1 Gasket
material
a
19 1 Conductor guide
a

Constructional details are not covered by this standard.
b
If brass is used the rated current I shall be reduced subject to an agreement.
r
12-2000/P4
12-3150/P4

24-2000/P3
24-3150/P3
24-2000/P4
24-3150/P4
36-2000/P3 (M)
36-3150/P3 (M)
36-2000/P4 (M)
36-3150/P4 (M)

---------------------- Page: 17 ----------------------

SIST EN 50180:2010
EN 50180:2010 - 16 -
4.6.6 250 A – 630 A types 52 kV
This drawing does not purport to show constructional details; it shows only an example for bottom end
connections.
Other designs are acceptable.

All dimensions in mm


Surface marked with _|_|_|_|_|_| are metalized


← - - → arcing distance AC
· -------- · creepage distance AB
Figure 6 - 250 A – 630 A types 52 kV

---------------------- Page: 18 ----------------------

SIST EN 50180:2010
- 17 - EN 50180:2010
Table 10 - Dimensions, 250 A - 630 A types 52 kV
/ / / d d d
Min. nominal creepage Arcing 4 5 7 4 5 6
U Distance AB Distance max max. max max max
m
Insu-
mm AC . . . .
Designation lator

type
kV Pollution level (IEC/TS 60815) mm mm mm mm mm mm mm
  b    c      d     e
660 60 M12
52-250/P1
52 832  29 480 505 136 259
52-630/P1
685 85 M20
660 60 M12
52-250/P3
52 832 1 040 1 300 30 480 505 136 259
52-630/P3
685 85 M20
705 60 M12
52-250/P4
52 832 1 040 1 300 1 612 31 520 550 136 259
52-630/P4
730 85 M20

Table 11 - List of components 250 A - 630 A types 52 kV
Item Quantity Designation Remarks

1  Type 29
1 1 Insulator Type 30 Porcelain
 1 Type 31
a Brass for 250 A
2
...