C57.19.01-2000

IEEE Std C57.19.01-2000 (Revision of IEEE Std C57.19.01-1991)

IEEE Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings

Sponsor

Transformers Committee of the IEEE Power Engineering Society Approved 30 January 2000

IEEE-SA Standards Board

Abstract: Electrical, dimensional, and related requirements for outdoor power apparatus bushings that have basic impulse insulation levels (BILs) of 200 kV and above are covered. Specific values for dimensional and related requirements that are to be interpreted, measured, or tested, in accordance with IEEE Std C57.19.00-1991, are provided. Keywords: basic impulse insulation levels (BILs), cantilever test, capacitance, creepage distance, flashover, line-to-ground voltage, nominal system voltage, power apparatus bushings, power factor

The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright © 2000 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 24 March 2000. Printed Printed in the United States of America. Print: PDF:

ISBN 0-7381-1984-9 ISBN 0-7381-1985-7

SH94834 SS94834

No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. publisher.

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Introduction (This introduction is not part of IEEE Std C57.19.01-2000, IEEE Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings.)

The tables and other information contained in this document were originally in ANSI C76.1-1943 through ANSI C76.1-1964. In August of 1968, the ANSI C76.1 Committee decided to divide the standard into three parts. The first (ANSI C76.1) covers general requirements and test procedures, the second (ANSI C76.2) covers explicit ratings and dimensions, and the third (ANSI C76.3) covers the application guide. ANSI C76.2-1977/IEEE Std 24-1977 incorporated changes that included a)

Adding dual curren currentt ratings ratings for for 115–196 115–196 kV insulati insulation on class class bushings bushings for for transfor transformers mers and and circuit circuit breakers

b)

Adding voltage voltage class class ratings ratings for 362–800 362–800 kV with with wet switch switching ing impulse impulse test values values and coordin coordinaation with switching surge sparkover values of arresters

c)

Adding and updatin updating g acceptanc acceptancee limits limits for for partial partial dischar discharge, ge, power power factor factor,, and capacit capacitance ance

ANSI/IEEE Std 24-1984 incorporated revisions in Table 1 and Table 9 to make them compatible with the concept of IEEE Std 262B-1977. IEEE Std C57.19.01-1991, sponsored by the IEEE Transformers Committee, incorporated changes to make it compatible with the new test procedures established by its companion standard, IEEE Std C57.19.001991. These changes included Table Table 9 and Table 10. During the work on the latest revision, IEEE Std C57.19.01-2000, major changes have been incorporated. These changes were the result of feedback from the Edison Electric Institute (EEI), original equipment manufacturers (OEMs), and users. The ratings were standardized in an effort to create fewer ratings and reduce the need for large inventories of spare bushings, which have accumulated from decades of special designs. Bushings in inventory incur a large tax burden from accruing bushing costs in 2–5 y. In addition, the requirement for bushings for application on new bulk oil circuit breakers ceased because these breakers were no longer being produced. The working group reviewed reviewed this this information information and agreed to revise the standard to reduce the number of ratings, promote standardization, improve bushing characteristics for new transformers, and achieve overall cost improvements. This work has resulted in the reduction of designs/ratings from 56 to 21. These changes include the following: —

Table 1, Electrical insulation characteristics. The number of voltage classes has been reduced from 19 to 7 to cover the 34.5–765 kV voltage range. Voltage/insulation classes, which were a part of Table 1 in IEEE Std C57.19.01-1991, but not included in Table 1 of this standard, are included in Annex A to provide information on replacement bushings. The system voltage designation has been changed to indicate nominal rating in conformance with transformer standard IEEE Std C57.12.001993. The BIL rating for each voltage class is based on the highest BIL speci fied in IEEE Std C57.12.00-1993 for the same voltage voltage class. A BIL of 2050 kV has been adopted for 756 kV rating. A column on creepage distance has been added to provide information on values corresponding corresponding to contaminated (heavy) environments environments as per IEEE Std C57.19.100-1995.

—

Table 2, Dimensions for bushings up to 69 kV. Current ratings of 400/1200 A, 2000 A, 3000 A, and 5000 A have been standardized. A current transformer pocket length of 534 mm (21 in) has been standardized for these ratings. The bottom-end length has been standardized in each voltage class. The top terminal diameters have been standardized at 1.5 in for current up to 2000 A, 2 in for 3000 A, and 4 in for 5000 A rating. The bottom terminal con figuration for ratings 2000 A and above have been changed from threaded stud to two- and four-hole bladed con figurations similar to those in NEMA CC1-1993. Information on transformer and circuit breaker interchangeable (TBI) and

Copyright © 2000 IEEE. All rights reserved.

iii

breaker ratings has been taken out. The footnote on draw-lead application has been revised to de fine the current-carrying limit. —

Table 3, Dimensions for bushings above 69 kV. Current ratings of 800/1200 A, 2000 A, and 3000 A have been standardized. A current transformer pocket length of 584 mm (23 in) has been standardized for these ratings. The bottom-end length has been standardized in each voltage class. The “D” diameter for the 196/230 kV rating has been reduced. The top terminal diameters have been standardized at 1.5 in for current up to 2000 A, and 2 in for 3000 A rating. rating. Dimensions for 500 kV and 765 kV ratings have been added. Information on TBI and breaker ratings has been taken out. The footnote on draw-lead application has been revised to de fine the current-carrying limit.

—

Table 4, Cantilever test requirements. The table has been simpli fied and expanded to include information on bushings above 345 kV. The permanent de flection at the bottom end has been revised to reflect transformer bushings requirement. Information on TBI and breaker ratings has been taken out.

—

Table 5, Partial discharge limits. The requirement at maximum L-G voltage has been taken out.

—

Table 6, Power factor and capacitance limits. The limit for power factor for oil-impregnated, paperinsulated bushings has been lowered lowered from 0.55% to 0.50%. Also, the power factor factor change limits for these bushings have been changed from +0.02/–0.06 to +0.02/–0.04.

—

In addition, addition, metric metric units units have have been adopte adopted d as primary primary units units followed followed by inch-pou inch-pound-ba nd-based sed units in in parentheses. Units/dimensions that are dependent upon inch-sized dies/tools have not been converted to metric units. Threads/inch and flange bolt hole diameters fall into this category.

— Annex A, Electrical insulation characteristics. This annex has been added to include the insulation characteristics for ratings, which were a part of IEEE Std C57.19.01-1991, but not included in Table 1 of this standard. This information has been provided for replacement purposes only. only. At the time this standard was completed, the Working Group on Performance Characteristics and Dimensions for Outdoor Apparatus Bushings had the following membership: Pritpal Singh, Chair Michael S. Altman Oscar M. Bello P. Bertolotto Gene Blackburn C. P. Caruso Florian Costa D. D. L. Cruz Fred E. Elliott* Keith P. Ellis Ronald Fox Jens Frost

N. Wayne Hansen Robert H. Hartgrove Olof Heyman Tim Huff Chungduck Ko Donald N. Laird Jim E. Long Russell C. Nordman Jesse M. Patton Donald W. Platts M. Rajadhyaksha

Mark Rivers Heuk Ruevekomp Devki N. Sharma Craig L. Stiegemeier Robert W. Thompson Subhash C. Tuli Loren B. Wagenaar Frank Wolfe W. A. Young D. Zeng Peter Zhao

*Chair, Bushing Subcommittee

iv


The following members of the balloting committee voted on this standard: R. R. Hayes Keith R. Highton Philip J. Hopkinson James D. Huddleston, III Bert R. Hughes Rowland I. James Charles W. Johnson Lars-Erik Juhlin Sheldon P. Kennedy Chungduck Ko Barin Kumar Stephen R. Lambert J. P. Lazar Maurice Linker Larry A. Lowdermilk Donald L. Lowe Joseph Ma William A. Maguire John W. Matthews Nigel P. McQuin Gary N. Miller R. E. Minkwitz, Sr. Harold R. Moore R. J. Musil Paul E. Orehek B. K. Patel Wesley F. Patterson Patters on Jesse M. Patton Paulette A. Payne Linden W. Pierce

S. H. Aguirre David Aho Paul Ahrens Ron L. Barker Oscar M. Bello Edward A. Bertolini Wallace B. Binder Thomas E. Blackburn, III Alain Bolliger William Carter C. P. Caruso B. Chiu Thomas F. Clark Jerry L. Corkran Dieter Dohnal Richard F. Dudley Fred E. Elliott Keith P. Ellis Jeffrey M. Finn Michael A. Franchek Jens Frost Doug M. Getson Harry D. Gianakouros Donald A. Gillies Richard D. Graham Robert L. Grubb Robert L. Grunert N. Wayne Hansen Robert H. Hartgrove

Paul Pillitteri G. Preininger Jeewan L. Puri Frank Richens Mark Rivers John R. Rossetti V. S. N. Sankar Subhas Sarkar Pat Scully Dilipkumar Shah Devki N. Sharma Vic Shenoy Hyeong Jin Sim Pritpal Singh James E. Smith Ronald J. Stahara Craig L. Stiegemeier Ron W. W. Stoner Stone r Thomas P. Traub Subhash C. Tuli John Tuohy John Vandermaar Robert A. Veitch Loren B. Wagenaar Barry H. Ward William G. Wimmer Frank Wolfe W. A. Young Peter Zhao

When the IEEE-SA Standards Board approved this standard on 30 January 2000, it had the following membership: Richard J. Holleman, Chair Donald N. Heirman, Vice Chair Judith Gorman, Secretary Satish K. Aggarwal Dennis Bodson Mark D. Bowman James T. Carlo Gary R. Engmann Harold E. Epstein Jay Forster* Ruben D. Garzon

James H. Gurney Lowell G. Johnson Robert J. Kennelly E. G. “Al” Kiener Joseph L. Koep finger* L. Bruce McClung Daleep C. Mohla Robert F. Munzner

Louis-François Louis-François Pau Ronald C. Petersen Gerald H. Peterson John B. Posey Gary S. Robinson Akio Tojo Hans E. Weinrich Donald W. Zipse

*Member Emeritus

Also included is the following nonvoting IEEE-SA Standards Board liaison: Robert E. Hebner

Yvette Ho Sang IEEE Standards Standards Project Project Editor Editor


v

Contents 1.

Scope................. Scope............................ ..................... .................... ..................... ..................... ..................... ..................... .................... ..................... ..................... ..................... ..................... ...............1 .....1

2.

References....... References.................. ..................... ..................... ..................... .................... ..................... ..................... ..................... ..................... ..................... ..................... .................... .................1 .......1

3.

General General requireme requirements.................. nts............................. ..................... ..................... ..................... .................... ..................... ..................... ..................... ..................... ....................2 ..........2

4.

Detailed Detailed requiremen requirements ts ..................... ............................... ..................... ..................... .................... ..................... ..................... ..................... ..................... .................... .................2 .......2

Annex Annex A (informat (informative ive)) Electrical Electrical insulatio insulation n characteri characteristics stics.......... .................... ..................... ..................... .................... ..................... ....................11 .........11

vi


IEEE Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings

1. Scope This standard covers electrical, dimensional, and related requirements for outdoor power apparatus bushings that have basic impulse insulation levels (BILs) of 200 kV and above. It provides speci fic values for dimensional and related requirements that are to be interpreted, measured, or tested in accordance with IEEE Std C57.19.00-1991. Bushings covered by this standard are intended for use as components of oil- filled transformers and reactors. For information on ratings not covered by this standard and for replacement bushings for oil circuit breakers, refer to IEEE Std C57.19.01-1991.

2. References This standard shall be used in conjunction with the following publications. At the time of publication, the editions indicated were valid. Parties involved involved in agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the reference standards available at the time of agreement. IEEE Std C57.12.00-1993, IEEE Standard General Requirements for L iquid-Immersed iquid-Immersed Distribution, Power, 1 and Regulating Transformers. Transformers. IEEE Std C57.12.90-1999, IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers. Transformers. IEEE Std C57.19.00-1991 (Reaff 1997), IEEE Standard General Requirements and Test Procedure for Outdoor Power Apparatus Bushings. IEEE Std C57.19.100-1995 (Reaff 1997), IEEE Guide for Application of Power Apparatus Apparatus Bushings. At the time of publication of this standard, there were no equivalent dimensional standards in IEC 60137:1995-12, Standard for Insulating Bushings for Alternating Voltages Voltages Above 1000 V V.. 2 1

IEEE publications are available from the Institute of Electrical and Electronics Engineers, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331, USA (http://standards.ieee.org/). (http://standards.ieee.org/). 2 IEC publications are available from the Sales Department of the International Electrotechnical Electrotechnical Commission, Case Postale 131, 3, rue de Varembé, CH-1211, Genève 20, Switzerland/Suisse (http://www.iec.ch/). IEC publications are also available in the United States from the Sales Department, American National Standards Institute, 11 West 42nd Street, 13th Floor, New York, NY 10036, USA (http://www.ansi.org/).


1

IEEE Std C57.19.01-2000

IEEE STANDARD PERFORMANCE CHARACTERISTICS AND

3. General requirements Refer to IEEE Std C57.19.00-19913 for general requirements, de finitions, and methods of measurements or tests applying to detailed requirements given in Clause 4.

4. Detailed requirements Outdoor apparatus bushings conforming to this standard shall meet the requirements of the following as applicable: a)

Electr Electrica icall insula insulatio tion n charac character terist istics ics of Tabl Tablee 1

b)

Dime Dimens nsiions ons of Figu Figure re 1, Table 2, and Table 3

c)

Cant Cantil ilev ever er test test valu values es of Table able 4

d)

Part Partia iall disc discha harg rgee limi limits ts of of Tab Table le 5

e)

Power Power factor factor and capaci capacitan tance ce limi limits ts of Table able 6

NOTE—PRIMARY UNITS FOR DIMENSIONS ARE IN MILLIMETERS FOLLOWED BY INCH UNITS IN PARENTHESES.

Figure 1—Bushing voltage tap dimensions Type A: Normally grounded 3

Information on references can be found in Clause 2.

2


IEEE Std C57.19.01-2000

DIMENSIONS FOR OUTDOOR APPARATUS BUSHINGS

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3

IEEE Std C57.19.01-2000

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. g n i t a r A 0 0 2 1 h t i w n o i t a c i l p p a d n e m o t t o b o t d a e l w a r d m o r f d e t r e v n o c e b n a c g n i h s u b s i h T . e t a l p . e m s a e n l o h g t n l i o h b s u g n b i t e n h t u o n m o e d g e t n a a t fl s . t g n 5 n . e i 2 c a t a e j r r d u e a h g i e t F h t t o h n g e d u e e o r w t i h t t e m i l 1 . b y s 2 i a e w g r d n u i i g i m h s F d u n n b i a e s r n e h e t t i t l f e l i n o e e g h n t b i t o d a t l r r u e o t n f h e e s r r r p g a u n t c i t d s s a e u e t h e o u . n h n d t t i m d a u n e n o l l o c a e c w e g a n r a h o g t , d i s l n h i n t e o i o i e t m h w i a t , i d e c s l n i d u e p r n h p o s a f w i o d n r a d h s f e u e n l s - i r g n e e w t s S t e h a r e E L W d d T t r O — — o o N 1 2 F N a b


IEEE Std C57.19.01-2000


, p a t t s e t , e g n a l fl f a n o i m s r n e o t i t a m c t o o t l o e b v i t d a n l e a R — 2 . 2 e r u g i F

n o i t a v e l e g n i h s u B — 1 . 2 e r u g i F


. K ) H 0 T 5 5 7 . 0 . 0 ( 9 1

l a n i m r e t m o t t o B — 5 . 2 e r u g i F

) 5 5 4 . 7 . 4 1 4 (

2 e l b a l T a n n i i m s r n e o t i s m n o e t t m o i B d — g n 4 . i 2 t a r e r t s u l u g l i i F s e r u g i F — 2 e r u g i F

e g n a l F — 3 . 2 e r u g i F

S R E T E M I L . L S I M E N S I E H E R T A N S E N R A O I P S I N N E S T I M I D N U R H O F C N S I T I Y N B U D Y E R W A O L M I L R O P F — E T O N

5

IEEE Std C57.19.01-2000


) V k 9 6 e v o b a e g a t l o v m e t s y s l a n ) i r m s e o k n a ( s e r g b n t i i h u s c u r b i c s o u t t e a r l b a a p c p i a l r p p e a w t o o p n r ( o o d t u o f o s n o i s n e m i D — 3 e l b a T

e c a p s t e k s a G



e b u T

e r ] l ) e i c n r t i e ( c m t m l i o a m B d [

) ) ) 6 5 5 1 2 5 2 2 2 2 . 6 2 . . . 6 6 l 3 4 3 4 o 3 4 1 1 1 ( ( ( C

4 ) . 1 3 2 3 5 (

4 ) . 1 3 2 3 5 (

4 ) . 1 3 2 3 5 (

4 ) . 1 3 2 3 5 (

4 ) . 1 3 2 3 5 (

4 ) . 1 3 2 3 5 (

e z i s ) n e i l o ( H

5 ) 1 5 . 2 l . — o 1 ( C

) 5 2 . — 1 (

) 5 2 . — 1 (

) 5 2 . — 1 (

) 5 2 . — 1 (

) 5 2 . — 1 (

) 5 2 . — 1 (

) 5 2 . — 1 (

) 5 2 . — 1 (

f s o l . t o o b N

4 1 . 6 l o C

6

6

2 1

2 1

2 1

2 1

2 1

2 1

e r e t d i e s t m u i a O d

] ) m n u i ( m i n m i m [ M

) ) ) 3 ) ) ) ) ) ) 8 8 1 7 8 5 5 5 5 5 5 7 7 5 8 8 . 5 . 5 . 5 . 5 . 5 . . 2 8 . . . 2 2 9 9 9 9 9 9 Q l 9 9 9 9 9 9 3 2 3 2 4 1 o 3 2 1 1 1 ( 4 1 ( 4 1 ( 4 1 ( 4 1 ( 4 1 ( ( ( ( C

r e e t d e i s m n a I i d

] m ) u i n ( m i x m a m [ M

) ) ) ) ) ) ) ) ) 2 8 8 3 3 3 3 3 3 1 6 8 6 6 5 5 5 5 5 5 8 8 1 1 1 1 1 1 . 7 8 . . . . . . . . . 7 7 3 3 3 3 3 3 P l 2 0 2 0 4 7 4 7 4 7 4 7 4 7 4 7 o 2 0 1 1 1 1 1 1 1 1 1 ( ( ( ( ( ( ( ( ( C

d n e m o t t o B

2 1 1 1 . — ) R l 5 o . 1 C (

d s A a s 2 e a F r l h c N T U e d l a b a e r s h U t

] ) m n u i ( m i m n i m [ M

r r e e t e h s m a a i W d

m u m i x a M

e b r e u t t e e m d i a i s d n I

8 . l o C

m u ) m n i ( n i i M

2 1 ) — 5 . 1 (

2 1 ) — 0 . 2 (

2 1 ) — 5 . 1 (

2 1 ) — 5 . 1 (

2 1 ) — 0 . 2 (

2 1 ) — 5 . 1 (

2 1 ) — 5 . 1 (

2 1 ) — 0 . 2 (

0 ) ) ) 1 ) 4 5 ) 1 2 ) 4 5 ) 1 2 ) 4 5 ) . 1 2 . 6 . 6 . 6 3 3 A l 7 5 6 7 5 6 7 3 ( ( ( ( ( 2 2 o 5 ( 6 2 ( ( ( C 9 . N l o — C

l a s n l i i a t m e r e d T

o d g w r o t n e m e n i l t e g e h e m m n s b r o m r 4 a e u . ) a f 5 n fl w b i i e l o f D 2 1 h ( t o

4 . 3 e r u g i F

) 7 5 . 2 l 6 o — . 1 C (

—

—

—

—

—

) ) ) 5 0 0 5 0 5 2 2 2 1 . 1 . 1 . 2 8 2 2 8 8 ( ( (

5 . 3 e r u g i F

5 . 3 e r u g i F

5 . 3 e r u g i F

5 . 3 e r u g i F

5 . 3 e r u g i F

6 . 3 e r u g i F

6 . 3 e r u g i F

6 . 3 e r u g i F

—

) 5 2 6 — . 1 (

—

—

) 2 — (

—

—

—

] m ) ) ) ) ) ) ) u i n 6 5 5 ) 5 2 ) 5 2 ) 0 5 5 5 . 8 5 8 8 5 0 0 ( 7 7 7 m 2 l 7 7 7 . . . 4 4 4 0 0 0 0 0 0 i D . . . o 2 9 2 9 2 9 3 1 4 5 4 5 x m ( 3 1 ( 3 1 ( 4 5 1 1 1 ( ( ( C a m ( ( ( [ M

l i r h t e c e o o ] g g t t e g n ) n n n m n n 5 a a i l m i ) 4 3 ) 4 3 ) 4 3 ) 4 3 ) 4 3 ) 4 3 ) 4 3 ) 4 3 ) e t r e t e . 4 3 e l c u s r o fl n a v ( W l 8 8 8 8 8 8 8 8 i t r f 2 2 2 2 2 2 2 2 2 o 8 e f 5 5 5 5 5 5 5 5 5 m e d m u ( ( ( ( ( ( ( ( ( m l u s i r n o u C d r o m m C n a k c [ s i n r o f t p a m ) ] n ) i d h m n n t 5 i ( e g m 2 l n 1 i e 3 . m l ± 0 m O ± ( [ s u o t d ) e u n e t r n a i r A ( t u R n c o c

g n i t a R

6


4 . L l o C

3 . l o C

) b 5 8 7 . 8 6 1 1 4 (

0 0 2 1 / a 0 0 8

) 5 8 7 8 . 1 1 6 4 (

) 5 8 7 8 . 1 1 6 4 (

c

c

0 0 0 2

0 0 0 3

) b 5 6 2 . 7 0 2 1 5 (

0 0 2 1 / a 0 0 8

) 5 6 2 7 . 2 1 0 5 (

) 5 6 2 7 . 2 1 0 5 (

c

c

0 0 0 2

0 0 0 3

5 ) 9 1 2 ( 1 5

0 0 2 1 / a 0 0 8

) g e n L o I n l s i c i ) t i B V s t n l a ( a h u p u l k ( B g m s e v i n l l i i e

2 . 0 l o 5 6 C

0 0 9

5 7 1 1

l a e g ) n m i e t a V t s l m k ( y o s o N v

1 . 8 l o 3 1 C

0 3 2

5 4 3

5 ) 9 1 2 ( 1 5

5 ) 9 1 2 ( 1 5

c

c

0 0 0 2

0 0 0 3

S E T O N

. s e l o h d e p p a t l a n i m r e t m o t t o b t n e c a j d a e h t n e e w t e b d n a s e l o h t l o b g n i t n u o m e g n a fl t n e c . j a 6 . d 3 a e e r h u t g i n F e e h w g t u e o r b h t y a 1 w . d 3 i e r m u d g n i F a e n i n i l s r n e i t t e e b l e d h t l u o o h t s r e p f a e r t e g g n t a i l d a o e v h e n h t m d u n l o c a e g n a o g i s l n i e o e m h i t , d n d i e n h s w i o n r h s f u s r e n e t t e h L W — 2 — 1


IEEE Std C57.19.01-2000



) V k 9 6 e v o b a e g a t l o v m e t s ) y d s l e u a i n n t i m n o o ( c n ( ) s s r g e n k i h a s e u r b b t s i u u t c r a r i a c p t p o a l e r e b w a c o i p l p r p o a o t d o t n u ( o f o s n o i s n e m i D — 3 e l b a T

e c a p s t e k s a G



e b u T

e r ] l ) e i c n r t i e ( c m t m l i o a m B d [ e z i s ) n e i l o ( H

5 ) 1 5 . 2 l . — o 1 ( C

) 5 2 . — 1 (

) 5 2 . — 1 (

) 5 2 . — 1 (

) 5 2 . — 1 (

f s o l . t o o b N

4 1 . 2 l o 1 C

2 1

2 1

6 1

6 1

e r e t d i e s t m u i a O d

] ) m n u i ( m i n m i m [ M

) ) 3 3 1 4 ) 4 ) 4 ) 4 3 4 6 . 8 3 8 3 8 3 5 6 . . 5 Q l 2 2 2 8 3 o 5 ( 5 ( 5 ( 8 3 3 3 ( ( C

r e e t d e i s m n a I i d

] m ) u i n ( m i x m a m [ M

2 ) ) 1 3 ) 3 ) 3 ) 9 5 5 . 9 . . 3 1 3 1 3 1 4 9 4 P l 9 2 2 5 5 7 7 o 5 2 ( ( ( 2 2 ( ( C

2 1 1 1 . — ) R l 5 o . 1 C (

d s A a s 2 e a F r l h c N T U e d l a b a e r s h U t

] ) m n u i ( m i m n i m [ M

r r e e t e h s m a a i W d

m u m i x a M

e b r e u t t e e m d i a i s d n I

2 1 ) — 0 . 2 (

2 1 ) — 5 . 1 (

2 1 ) — 5 . 1 (

0 ) ) 1 ) 4 5 ) 1 2 ) 4 5 . 1 2 . 6 . 3 A l 7 5 6 ( ( 2 o 5 ( 6 2 ( ( C

8 . l o C

m u ) m n i ( n i i M

6 . 3 e r u g i F

7 . ) l 2 o — ( C

6 . 3 e r u g i F

6 . 3 e r u g i F

6 . 3 e r u g i F

6 . 3 e r u g i F

—

—

) 2 — (

—

] m ) ) ) u i n 6 ) 8 0 ) 8 0 ) 9 5 5 . 8 0 ( . 9 . m l 0 0 4 4 i 9 9 2 2 2 o 0 5 5 5 7 7 x m D C ( ( ( 2 2 ( ( a m [ M

l i r h t e c e o o ] g g t t e g n ) n n n m n n 5 a a i l m i ) 4 3 ) 4 3 ) 4 3 ) 4 3 ) e t r e t e . 4 3 e l c u s r o fl n a v ( W l 8 8 8 8 i t r f 2 2 2 2 2 o 8 e f 5 5 5 5 5 m e d m u ( ( ( ( ( m l u s i r n o u C d r o m m C n a k c [ s i n r o f t p a m ) ] n ) i d h m n n t 5 i ( e g m 2 l n 1 i e 3 . m l ± 0 m O ± ( [

g n i t a R

2 1 ) — 5 . 1 (

9 ) 5 2 ) 5 2 ) 0 3 ) 0 3 ) . 5 2 0 0 3 3 N l 1 1 1 1 1 o 0 3 3 3 3 3 ( ( ( ( ( C

l a s n l i i a t m e r e d T

o g w t r o e d n e m n i l t e g e h e m m n s b r o m r 4 a e u . ) a f 5 n fl w b i i e l o f D 2 1 h ( t o d n e m o t t o B

6 1 5 ) 5 ) 5 ) 9 ) 9 ) . 3 5 3 5 3 5 8 5 8 5 l o 6 2 ( 6 2 ( 6 2 ( 8 3 ( 8 3 ( C

4 . L l o C

1 ) 5 5 6 ( 1 6

1 ) 5 5 6 ( 1 6

1 ) 5 5 6 ( 1 6

c

c

9 ) 5 5 1 ( 2 8

s u o t d e u n e ) t n a i r r A ( u R t n c o c

3 . l o C

0 0 2 1 / a 0 0 8

) g e n L o I n l s i c i ) t i B V s t n l a ( a h u p u l k ( B g m s e v i n l l i i e

2 . l o C

5 7 6 1

0 5 0 2

1 . 0 l o 0 5 C

5 6 7

l a e g ) n m i e t a V t s l m k ( y o s o N v


0 0 0 2

0 0 0 3

0 0 2 1 / a 0 0 8

9 ) 5 5 1 ( 2 8

b

0 0 0 2

S E T O N

. g n i t a r A 0 0 2 1 h t i w n o i t a c i l p p a . d s n e e l o m h o d t t e o p b p a t o t l d a n a i e l m r w e a t r m d o t m t o o f r b t d n e t e r c e a v j n d a o e c e h t b n n e e a c w g t e i n b h s d u n a b s s i e h l o T h . t e l t a o l b p e g n m i t a n n u o g n m i e h s g u n b a e fl h t t n n e o c . j a d 6 . e d t 3 a t a e e s r h u t g g n i i t e F n e a r h w e g t u h e t o r b o h t y a t 1 w d e . d t 3 i i e m m r i l u g d s n i i F a g . e i n e n i n i s h l s a s r n u e e r i b c t t e e i e b n l h e d t y f h t l u o a m o o g t h n n r s i o t e i p f s a a r n e r t e e t n g g m e n t i r a i r d l d u a ” c e o v s - L h e u “ n h e t o h u m d t , . n u n i l d t d a o l e c a e l e n o i g n c h a w s o e a i g h s l r a d t , l n n e i o n r h t e e m o t i i h x t t , i d e w a e n d c f i i s o u e l n h p n r s p w o o a i o i n t f r d i h d s f u a e e d d n s r n l - a i g e e t e w t s e h a t d e r h L W d h t t r i — — o o 1 2 F W N a b c

7

IEEE Std C57.19.01-2000



e g n a l F — 2 . 3 e r u g i F

8



, e g u a g l i l o a , n e i g m n r a e t fl f o m o s t n t o o i t b a d c n o a l , e p v a i t t a e l g e a R l t o — v 3 . 3 e r u g i F

S R E T E M I L . L I S E M N S I E E H R T N A E S N R A O P I S I N N E S T I M I D N U R O H F C N S I T I Y N B U D Y E R W A O L M I L R O P F — E T O N

3 e l b a T n i s n o i s n e m i d g n i t a r t s u l l i s e r u g i F — 3 e r u g i F

n o i t a v e l e g n i h s u B — 1 . 3 e r u g i F


IEEE Std C57.19.01-2000


Table 4—Cantilever design test requirements for outdoor power apparatus bushings (not applicable to circuit breakers) Transverse static force top and bottom

Rating Nominal system voltage (kV)

Rated continuous current (A)

(N)

(lbf)

Col. 1

Col. 2

Col. 3

Col. 4

34.5–69

Up to 2000

890

200

3000

1300

300

5000

2200

500

138

All

3100

700

230 and above

All

4000

900

NOTES 1—For draw-lead only bushings, no test is required for the bottom end. °

2—The above values apply to bushings operated at inclinations up to 20 from the vertical. For angles greater than 20 , an equivalent force appearing at the top terminal due to the weight of the bushing should be added to the above values when testing the bushing in the vertical position. °

3—The above values are design test requirements only and are not associated with permissible loads that can be applied to the top terminal during service. Refer to IEEE Std C57.19.100-1995 for additional information. 4—The permanent de flection measured at the bottom end 1 min after the removal of the force shall not exceed 1.52 mm (0.060 in).

Table 5—Partial discharge limitsa Type of constructionb

At 1.5 times maximum L-G voltagec (pC or µV)

Oil-impregnated, paper-insulated

10

Resin-impregnated, paper-insulated

10

Resin-bonded, paper-insulated

100

Cast insulation

25

Solid

50d

a

These limits include background corona. Since these measurements are related to partial discharges within the major insulation, external shielding may be used to reduce corona that may occur at the bushings terminals or the grounded projections. b Refer to IEEE Std C57.19.00-1991 for definitions of the types of constructions. For application to power transformers that require partial discharge at 1.5 times maximum L-G voltage, bushings may be selected from appropriate types of constructions. c The duration of 1.5 times maximum L- G voltage in the design test is 1 h. During this test, the parti al discharge measurements shall be made at 5 min intervals. For the routine test, the same voltage shall be applied for a period long enough to make a stable partial discharge reading. d Measured at 2 times maximum L-G voltage.


9

IEEE Std C57.19.01-2000


Table 6—C1 or C power factor and capacitance limits C1 or C power factor and capacitance Power factora

Type of construction Limit (%) Col. 1

Capacitance

Acceptable change

b

Acceptable change (%) c

Col. 2

Col. 3

Col. 4

Oil-impregnated, paper-insulated

0.50

+0.02/–0.04

±1.0

Resin-impregnated, paper-insulated

0.85

±0.04

±1.0

Resin-bonded, paper-insulated

2.00

±0.08

±1.0

Cast insulation

1.00

±0.04

±1.0

Solid

N/Ad

—

—

a

°

Corrected to 20 C. The algebraic difference in power factor (expressed in percent) measured at 10 kV or at the rated maximum L-G voltage before and after the dielectric withstand voltage test must be within the specified limits. For example, if the power factor of the oil-impregnated, paper-insulated bushing was 0.30% before the withstand test, the maximum acceptable power factor after the test would be 0.32%. c The percent change in capacitance after the dielectric withstand test based on the initial value must be within the specified limits. The measurements are to be made at 10 kV or at rated maximum L-G voltage. d There is no power factor limit for solid bushings, since the effect of stray capacitance and/or surface dielectric loss for low capacitance specimens (<100 pF) such as these can cause significant variations in the measured power factor. Tests on such bushings are usually rated on the basis of comparison of capacitance and ac dielectric loss between similar bushings, when tested at the same time and under similar conditions. b

10


IEEE Std C57.19.01-2000


Annex A (informative)

Electrical insulation characteristics characteristics Table A.1 includes the electrical insulation characteristics for ratings that were a part of IEEE Std C57.19.01-1991, but which were not included in Table 1 of this standard. This information is provided for replacement purposes only.

Table A.1—Electrical insulation characteristics for outdoor apparatus bushings (nominal system voltage 15–800 kV) (for replacement purposes only) Withstand tests Basic lightning impulse insulation level (BIL)

System voltage

(kV)

(kV)

(kV)

Col. 1

Col. 2

Col. 3

110

15

10

280

150

25

16

250

46

450

Rated maximum line-toground voltage

60 Hz Creepage distance minimum

Lightning impulse

1 min dry rms

10 s wet rms

Full wave

(kV)

(kV)

Col. 5

Col. 6

11

50

430

17

29

890

92TRb

73

550

115

650 750 750

Chopped wave crest minimum time to flashover

Wet Wet switching impulse

2 µs withstand

3 µs withstand

(kV)

(kV)

(kV)

(kV)

Col. 7

Col. 8

Col. 9

Col. 10

45

110

142

126

—

60

50

150

194

175

—

35

105

95

250

322

290

—

1 680

66

185

155

450

—

520

—

88

2 010

79

260

230

550

710

632

—

138

102

2 340

92

310

275

650

838

750

—

161

102

2 900

114

365

315

750

968

865

—

146

3 560

140

365

315

750

—

865

— —

161TRb

(mm)a

(in)

Col. 4

900

196

146

3 560

140

425

350

900

1 160

1 040

900

362

220

5 590

220

395

—

900

—

1 035

700

1 050

362

220

5 590

220

460

—

1 050

—

1 210

825

1 300

550

318

8 080

318

575

—

1 300

—

1 500

1 050

1 425

550

318

8 080

318

630

—

1 425

—

1 640

1 110

1 550

550

318

8 080

318

690

—

1 550

—

1 780

1 175

1 800

800

485

12 320

485

800

—

1 800

—

2 070

1 360

NOTES 1—Dry negative switching impulse withstand voltage of the bushing must be at least equal to the dry switching impulse withstand voltage for the corresponding BIL speci fied in IEEE Std C57.12.00-1993. 2—The above ratings are not a part of the main standard and are included in this annex for replacement purposes only. a Primary units for dimensions are in b

millimeters.

For reduced BIL transformers only. only.


11

C57.19.01-2000

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