engines={image=false textcolor=true vector=false text=true} tetml={filename={D:\drim\repository\projects\drim_85_0\metadata\0\1\0162afb0c83738044d302bf09d8229ae\0162afb0c83738044d302bf09d8229ae.para.xml} elements={annotations=false bookmarks=false destinations=false fields=false javascripts=false} } granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Internal I n t e r n a l Requirements R e q u i r e m e n t s Classification: C l a s s i f i c a t i o n : Internal I n t e r n a l Status: S t a t u s : Relevant R e l e v a n t Version: V e r s i o n : 4.0 4 . 0 TR3123 T R 3 1 2 3 Transformers T r a n s f o r m e r s Project P r o j e c t development d e v e l o p m e n t Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0, 4 . 0 , Document D o c u m e n t replaces r e p l a c e s version v e r s i o n 3.02 3 . 0 2 Relevant R e l e v a n t versions: v e r s i o n s : 3.01 3 . 0 1 (2017-09-08 ( 2 0 1 7 - 0 9 - 0 8 14:41) 1 4 : 4 1 ) 3.02 3 . 0 2 (2019-06-05 ( 2 0 1 9 - 0 6 - 0 5 13:56) 1 3 : 5 6 ) 4.0 4 . 0 (2021-07-09 ( 2 0 2 1 - 0 7 - 0 9 18:30) 1 8 : 3 0 ) Project P r o j e c t development, d e v e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 1 1 of o f 11 1 1 granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} 1 1 Objective, O b j e c t i v e , target t a r g e t group g r o u p and a n d provision p r o v i s i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 1.1 1 . 1 Objective O b j e c t i v e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 1.2 1 . 2 Target T a r g e t group g r o u p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 1.3 1 . 3 Provision P r o v i s i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 2 2 Common C o m m o n design d e s i g n requirements r e q u i r e m e n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 2.1 2 . 1 Neutral N e u t r a l points p o i n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 2.2 2 . 2 Terminals T e r m i n a l s and a n d wiring w i r i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 2.3 2 . 3 Labelling L a b e l l i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 2.4 2 . 4 Vibration V i b r a t i o n damper d a m p e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 2.5 2 . 5 Painting P a i n t i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 3 3 Liquid-immersed L i q u i d - i m m e r s e d transformers t r a n s f o r m e r s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 3.1 3 . 1 Insulating I n s u l a t i n g liquid l i q u i d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 3.2 3 . 2 Access A c c e s s to t o internals i n t e r n a l s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 3.3 3 . 3 Bushings B u s h i n g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 3.4 3 . 4 Tank T a n k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 4 4 Dry D r y insulated i n s u l a t e d transformers t r a n s f o r m e r s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 4.1 4 . 1 Windings W i n d i n g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 4.2 4 . 2 Protective P r o t e c t i v e housing h o u s i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6 4.3 4 . 3 Testing T e s t i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6 5 5 Additional A d d i t i o n a l information i n f o r m a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 5.1 5 . 1 Definitions D e f i n i t i o n s and a n d abbreviations a b b r e v i a t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 5.2 5 . 2 Changes C h a n g e s from f r o m previous p r e v i o u s version v e r s i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 8 5.3 5 . 3 References R e f e r e n c e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 9 Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Internal I n t e r n a l Project P r o j e c t development, d e v e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 2 2 of o f 11 1 1 granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Interna I n t e r n a This T h i s documentandits d o c u m e n t a n d i t s content, c o n t e n t , is i s for f o r authorized a u t h o r i z e d companyuse c o m p a n y u s e only o n l y 1 1 Objective, O b j e c t i v e , target t a r g e t group g r o u p and a n d provision p r o v i s i o n 1.1 1 . 1 Objective O b j e c t i v e The T h e specification s p e c i f i c a t i o n establishes e s t a b l i s h e s requirements r e q u i r e m e n t s for f o r design, d e s i g n , construction c o n s t r u c t i o n and a n d testing t e s t i n g of o f high h i g h voltage v o l t a g e transformers t r a n s f o r m e r s for f o r onshore o n s h o r e and a n d offshore o f f s h o r e service. s e r v i c e . The T h e specification s p e c i f i c a t i o n contains c o n t a i n s three t h r e e parts. p a r t s . Section S e c t i o n 2 2 is i s valid v a l i d for f o r all a l l transformers, t r a n s f o r m e r s , section s e c t i o n 3 3 is i s applicable a p p l i c a b l e to t o liquid-immersed l i q u i d - i m m e r s e d transformers, t r a n s f o r m e r s , and a n d section s e c t i o n 4 4 is i s applicable a p p l i c a b l e for f o r dry d r y insulated i n s u l a t e d transformers. t r a n s f o r m e r s . The T h e referred r e f e r r e d standardsare s t a n d a r d s a r e either e i t h e r based b a s e d on o n IEC I E C or o r based b a s e d on o n IEEE. I E E E . The T h e standards s t a n d a r d s have h a v e been b e e n referred r e f e r r e d to t o by b y one o n e common c o m m o n numberas n u m b e r a s shown s h o w n in i n section s e c t i o n 5.3. 5 . 3 . The T h e IEEE I E E E standards s t a n d a r d s are a r e applicable a p p l i c a b l e in i n US U S or o r Canada, C a n a d a , while w h i l e IEC I E C standards s t a n d a r d s are a r e applicable a p p l i c a b l e elsewhere. e l s e w h e r e . SR-47869 S R - 4 7 8 6 9 - - The T h e requirements r e q u i r e m e n t s in i n this t h i s documentshall d o c u m e n t s h a l l be b e used u s e d in i n addition a d d i t i o n to t o IOGP I O G P S-720 S - 7 2 0 specification s p e c i f i c a t i o n and a n d datasheet d a t a s h e e t ST518 S T 5 1 8 The T h e specification s p e c i f i c a t i o n can c a n be b e usedfor u s e d f o r low l o w voltage v o l t a g e transformers, t r a n s f o r m e r s , such s u c h as a s 690 6 9 0 - - 400 4 0 0 V V transformers. t r a n s f o r m e r s . 1.2 1 . 2 Target T a r g e t group g r o u p The T h e target t a r g e t group g r o u p for f o r this t h i s documentis d o c u m e n t i s personnel p e r s o n n e l involved i n v o l v e d in i n preparing p r e p a r i n g technical t e c h n i c a l and a n d operational o p e r a t i o n a l requirements r e q u i r e m e n t s and a n d standardsto s t a n d a r d s t o be b e applied a p p l i e d in i n project p r o j e c t developmentwork d e v e l o p m e n t w o r k for f o r oil o i l and a n d gas. g a s . 1.3 1 . 3 Provision P r o v i s i o n Provision P r o v i s i o n is i s made m a d e in i n Management M a n a g e m e n t System S y s t e m (TR3020 ( T R 3 0 2 0 Electrical, E l e c t r i c a l , Technical T e c h n i c a l Requirements R e q u i r e m e n t s and a n d Standards). S t a n d a r d s ) . 2 2 Common C o m m o n design d e s i g n requirements r e q u i r e m e n t s Project P r o j e c t development, d e v e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 3 3 of o f 11 1 1 granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Internal I n t e r n a l 2.1 2 . 1 Neutral N e u t r a l points p o i n t s For F o r Neutral N e u t r a l Earth E a r t h Resistors R e s i s t o r s (NER), ( N E R ) , see s e e requirements r e q u i r e m e n t s in i n TR3120. T R 3 1 2 0 . 2.2 2 . 2 Terminals T e r m i n a l s and a n d wiring w i r i n g Reference R e f e r e n c e is i s made m a d e to t o TR3120 T R 3 1 2 0 section s e c t i o n 4.11 4 . 1 1 regarding r e g a r d i n g marking m a r k i n g of o f internal i n t e r n a l components c o m p o n e n t s and a n d wiring. w i r i n g . Reference R e f e r e n c e is i s made m a d e to t o TR3120 T R 3 1 2 0 section s e c t i o n 4.17 4 . 1 7 regarding r e g a r d i n g light l i g h t fixture f i x t u r e and a n d space s p a c e heaters h e a t e r s inside i n s i d e cabinets. c a b i n e t s . Reference R e f e r e n c e is i s made m a d e to t o TR3120 T R 3 1 2 0 section s e c t i o n 4.8 4 . 8 regarding r e g a r d i n g earthing e a r t h i n g of o f the t h e transformer t r a n s f o r m e r (high ( h i g h voltage v o l t a g e equipment). e q u i p m e n t ) . 2.3 2 . 3 Labelling L a b e l l i n g Reference R e f e r e n c e is i s made m a d e to t o TR3120 T R 3 1 2 0 regarding r e g a r d i n g the t h e requirements r e q u i r e m e n t s for f o r labelling. l a b e l l i n g . 2.4 2 . 4 Vibration V i b r a t i o n damper d a m p e r SR-47917 S R - 4 7 9 1 7 - - Use U s e of o f vibration v i b r a t i o n dampers d a m p e r s shall s h a l l be b e evaluated e v a l u a t e d to t o ensure e n s u r e that t h a t transformers t r a n s f o r m e r s do d o not n o t cause c a u s e unwanted u n w a n t e d vibration v i b r a t i o n and a n d noise n o i s e to t o their t h e i r surroundings. s u r r o u n d i n g s . 2.5 2 . 5 Painting P a i n t i n g SR-98074 S R - 9 8 0 7 4 - - Painting P a i n t i n g shall s h a l l be b e in i n accordance a c c o r d a n c e to t o TR0042 T R 0 0 4 2 and a n d IOGP I O G P S-715. S - 7 1 5 . 3 3 Liquid-immersed L i q u i d - i m m e r s e d transformers t r a n s f o r m e r s 3.1 3 . 1 Insulating I n s u l a t i n g liquid l i q u i d SR-98075 S R - 9 8 0 7 5 - - Use U s e of o f insulation i n s u l a t i o n liquids l i q u i d s for f o r allowing a l l o w i n g temperatures t e m p e r a t u r e s above a b o v e 105°C, 1 0 5 ° C , e.g. e . g . listed l i s t e d in i n IEC I E C 60076-14, 6 0 0 7 6 - 1 4 , shall s h a l l not n o t be b e used u s e d for f o r transformers t r a n s f o r m e r s with w i t h U U m m equal e q u a l to t o or o r above a b o v e 170 1 7 0 kV k V for f o r IEC I E C specifications s p e c i f i c a t i o n s due d u e to t o the t h e limited l i m i t e d experience e x p e r i e n c e of o f dielectric d i e l e c t r i c withstand w i t h s t a n d capability c a p a b i l i t y of o f such s u c h insulating i n s u l a t i n g liquids. l i q u i d s . The T h e high h i g h temperature t e m p e r a t u r e design d e s i g n should s h o u l d be b e based b a s e d on o n hybrid h y b r i d insulation i n s u l a t i o n system. s y s t e m . The T h e average a v e r a g e temperature t e m p e r a t u r e rise r i s e of o f the t h e transformer t r a n s f o r m e r windings w i n d i n g s at a t rated r a t e d power p o w e r should s h o u l d not n o t exceed e x c e e d 95 9 5 K, K , and a n d the t h e top t o p oil o i l temperature t e m p e r a t u r e should s h o u l d not n o t exceed e x c e e d 60 6 0 K. K . Reference R e f e r e n c e to t o other o t h e r requirements r e q u i r e m e n t s in i n IEC I E C 60076-14. 6 0 0 7 6 - 1 4 . Minimum M i n i m u m thermal t h e r m a l class c l a s s for f o r the t h e high-temperature h i g h - t e m p e r a t u r e solid s o l i d insulation i n s u l a t i o n should s h o u l d be b e 155 1 5 5 °C. ° C . Project P r o j e c t development, d e v e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 4 4 of o f 11 1 1 granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Internal I n t e r n a l 3.2 3 . 2 Access A c c e s s to t o internals i n t e r n a l s SR-47936 S R - 4 7 9 3 6 - - Liquid L i q u i d filled f i l l e d units u n i t s shall s h a l l be b e equipped e q u i p p e d with w i t h man m a n holes h o l e s to t o perform p e r f o r m access a c c e s s to t o OLTC, O L T C , bushings b u s h i n g s and a n d other o t h e r internal i n t e r n a l inspection i n s p e c t i o n points p o i n t s if i f relevant. r e l e v a n t . 3.3 3 . 3 Bushings B u s h i n g s Type T y p e of o f bushings b u s h i n g s will w i l l be b e described d e s c r i b e d in i n datasheet. d a t a s h e e t . SR-47958 S R - 4 7 9 5 8 - - For F o r plug-in p l u g - i n type t y p e bushing b u s h i n g or o r equivalent e q u i v a l e n t touch t o u c h proof p r o o f solution, s o l u t i o n , a a portable p o r t a b l e earthing e a r t h i n g device d e v i c e shall s h a l l be b e delivered, d e l i v e r e d , if i f not n o t otherwise o t h e r w i s e stated. s t a t e d . SR-47959 S R - 4 7 9 5 9 - - It I t shall s h a l l be b e provision p r o v i s i o n for f o r measuring m e a s u r i n g voltage v o l t a g e at a t the t h e bushing b u s h i n g to t o be b e able a b l e to t o check c h e c k if i f the t h e transformer t r a n s f o r m e r is i s energized. e n e r g i z e d . 3.4 3 . 4 Tank T a n k Transformers T r a n s f o r m e r s with w i t h U U m m equal e q u a l to t o or o r above a b o v e 24 2 4 kV k V should s h o u l d have h a v e a a diaphragm-type d i a p h r a g m - t y p e oil o i l preservation p r e s e r v a t i o n system s y s t e m to t o avoid a v o i d direct d i r e c t contact c o n t a c t between b e t w e e n the t h e transformer t r a n s f o r m e r oil o i l and a n d air. a i r . A A flexible f l e x i b l e diaphragm d i a p h r a g m or o r bladder b l a d d e r should s h o u l d be b e used u s e d for f o r this t h i s purpose. p u r p o s e . SR-47972 S R - 4 7 9 7 2 - - 316L 3 1 6 L stainless s t a i n l e s s steel s t e e l shall s h a l l be b e used u s e d for f o r fasteners f a s t e n e r s (screws, ( s c r e w s , bolts, b o l t s , nuts, n u t s , etc.) e t c . ) up u p to t o and a n d including i n c l u d i n g a a diameter d i a m e t e r of o f 10 1 0 mm. m m . For F o r diameters d i a m e t e r s above a b o v e 10 1 0 mm m m fasteners f a s t e n e r s shall s h a l l be b e hot h o t dip d i p galvanised g a l v a n i s e d in i n accordance a c c o r d a n c e with w i t h ASTM A S T M A153 A 1 5 3 or o r coated c o a t e d with w i t h PTFE P T F E with w i t h anticorrosion a n t i c o r r o s i o n pre-treatment. p r e - t r e a t m e n t . The T h e requirement r e q u i r e m e n t for f o r fasteners f a s t e n e r s does d o e s not n o t apply a p p l y to t o fasteners f a s t e n e r s inside i n s i d e the t h e transformer t r a n s f o r m e r tank. t a n k . 4 4 Dry D r y insulated i n s u l a t e d transformers t r a n s f o r m e r s 4.1 4 . 1 Windings W i n d i n g s See S e e section s e c t i o n 2.3 2 . 3 in i n this t h i s document d o c u m e n t for f o r general g e n e r a l requirements. r e q u i r e m e n t s . The T h e insulation i n s u l a t i o n level l e v e l will w i l l be b e according a c c o r d i n g to: t o : List L i s t 2 2 in i n table t a b l e 3 3 of o f section s e c t i o n 12.1 1 2 . 1 for f o r the t h e IEC-based I E C - b a s e d specification s p e c i f i c a t i o n IEC I E C 60076-11. 6 0 0 7 6 - 1 1 . The T h e highest h i g h e s t indicated i n d i c a t e d basic b a s i c lightning l i g h t n i n g impulse i m p u l s e level l e v e l stated s t a t e d in i n table t a b l e 5 5 in i n section s e c t i o n 5.10 5 . 1 0 for f o r the t h e IEEE I E E E based b a s e d specification s p e c i f i c a t i o n IEEE I E E E C57.12.01 C 5 7 . 1 2 . 0 1 and a n d IEEE I E E E C57.12.91. C 5 7 . 1 2 . 9 1 . The T h e minimum m i n i m u m winding w i n d i n g insulation i n s u l a t i o n class c l a s s should s h o u l d be: b e : Project P r o j e c t development, d e v e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 5 5 of o f 11 1 1 granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Internal I n t e r n a l 155°C 1 5 5 ° C (insulation ( i n s u l a t i o n class c l a s s F) F ) for f o r IEC I E C based b a s e d specifications s p e c i f i c a t i o n s (IEC ( I E C 60076-11) 6 0 0 7 6 - 1 1 ) 150°C 1 5 0 ° C for f o r IEEE I E E E based b a s e d specifications s p e c i f i c a t i o n s (IEEE ( I E E E C57.12.01 C 5 7 . 1 2 . 0 1 and a n d IEEE I E E E C57.12.91). C 5 7 . 1 2 . 9 1 ) . The T h e windings w i n d i n g s should s h o u l d be b e solid-casted s o l i d - c a s t e d or o r VPI. V P I . Reference R e f e r e n c e is i s made m a d e to t o IOGP I O G P S-720 S - 7 2 0 datasheet. d a t a s h e e t . SR-47991 S R - 4 7 9 9 1 - - All A l l terminals t e r m i n a l s shall s h a l l be b e of o f copper c o p p e r type. t y p e . This T h i s also a l s o applies a p p l i e s when w h e n aluminium a l u m i n i u m windings w i n d i n g s is i s specified. s p e c i f i e d . 4.2 4 . 2 Protective P r o t e c t i v e housing h o u s i n g See S e e requirements r e q u i r e m e n t s in i n TR3120. T R 3 1 2 0 . SR-48004 S R - 4 8 0 0 4 - - The T h e transformer t r a n s f o r m e r shall s h a l l be b e in i n a a housing h o u s i n g that t h a t is i s cooled c o o l e d by b y external e x t e r n a l air a i r or o r water w a t e r SR-48006 S R - 4 8 0 0 6 - - Doors D o o r s and a n d panels p a n e l s shall s h a l l be b e hinged. h i n g e d . There T h e r e shall s h a l l be b e isolating i s o l a t i n g bars b a r s behind b e h i n d the t h e doors. d o o r s . The T h e bars b a r s shall s h a l l be b e coloured c o l o u r e d yellow y e l l o w and a n d black b l a c k (zebra ( z e b r a stripes) s t r i p e s ) if i f not n o t otherwise o t h e r w i s e required r e q u i r e d by b y national n a t i o n a l regulation. r e g u l a t i o n . 4.3 4 . 3 Testing T e s t i n g SR-48016 S R - 4 8 0 1 6 - - The T h e following f o l l o w i n g non-routine n o n - r o u t i n e tests t e s t s shall s h a l l always a l w a y s be b e performed p e r f o r m e d (ref ( r e f IEC I E C 60076-11 6 0 0 7 6 - 1 1 or o r IEEE I E E E C57.12.01 C 5 7 . 1 2 . 0 1 and a n d IEEE I E E E C57.12.91 C 5 7 . 1 2 . 9 1 respectively): r e s p e c t i v e l y ) : Temperature-rise T e m p e r a t u r e - r i s e test t e s t together t o g e t h e r with w i t h the t h e planned p l a n n e d protective p r o t e c t i v e housing h o u s i n g unless u n l e s s otherwise o t h e r w i s e agreed a g r e e d upon. u p o n . Partial P a r t i a l discharge d i s c h a r g e measurement m e a s u r e m e n t special s p e c i a l test. t e s t . Determination D e t e r m i n a t i o n of o f capacitances c a p a c i t a n c e s windings-to-earth w i n d i n g s - t o - e a r t h and a n d between b e t w e e n windings w i n d i n g s for f o r all a l l converter c o n v e r t e r transformers. t r a n s f o r m e r s . If I f several s e v e r a l identical i d e n t i c a l transformers t r a n s f o r m e r s are a r e ordered, o r d e r e d , the t h e non-routine n o n - r o u t i n e test t e s t can c a n be b e performed p e r f o r m e d on o n one o n e transformer t r a n s f o r m e r only. o n l y . Project P r o j e c t development, d e v e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 6 6 of o f 11 1 1 granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Internal I n t e r n a l 5 5 Additional A d d i t i o n a l information i n f o r m a t i o n 5.1 5 . 1 Definitions D e f i n i t i o n s and a n d abbreviations a b b r e v i a t i o n s Shall S h a l l (requirement) ( r e q u i r e m e n t ) Requirement R e q u i r e m e n t strictly s t r i c t l y to t o be b e followed f o l l o w e d in i n order o r d e r to t o confirm c o n f i r m to t o the t h e document d o c u m e n t and a n d from f r o m which w h i c h no n o deviation d e v i a t i o n is i s permitted, p e r m i t t e d , unless u n l e s s a a deviation d e v i a t i o n permit p e r m i t is i s approved. a p p r o v e d . Should S h o u l d (recommendation) ( r e c o m m e n d a t i o n ) Indicates I n d i c a t e s that t h a t among a m o n g several s e v e r a l possibilities p o s s i b i l i t i e s one o n e is i s recommended r e c o m m e n d e d as a s particularly p a r t i c u l a r l y suitable, s u i t a b l e , without w i t h o u t mentioning m e n t i o n i n g or o r excluding e x c l u d i n g others, o t h e r s , or o r that t h a t a a certain c e r t a i n course c o u r s e of o f action a c t i o n is i s preferred p r e f e r r e d but b u t not n o t necessarily n e c e s s a r i l y required, r e q u i r e d , or o r that t h a t (in ( i n the t h e negative n e g a t i v e form) f o r m ) possibility p o s s i b i l i t y or o r course c o u r s e of o f action a c t i o n is i s deprecated d e p r e c a t e d but b u t not n o t prohibited. p r o h i b i t e d . May M a y Indicates I n d i c a t e s a a course c o u r s e of o f action a c t i o n permissible p e r m i s s i b l e within w i t h i n the t h e limits l i m i t s of o f the t h e document. d o c u m e n t . Can C a n Statements S t a t e m e n t s of o f possibility p o s s i b i l i t y and a n d capability, c a p a b i l i t y , whether w h e t h e r material, m a t e r i a l , physical p h y s i c a l or o r causal. c a u s a l . AC A C Alternating A l t e r n a t i n g current c u r r e n t AF A F Air A i r Forced F o r c e d AN A N Air A i r Natural N a t u r a l Converter C o n v e r t e r transformer t r a n s f o r m e r Transformer T r a n s f o r m e r feeding f e e d i n g a a converter c o n v e r t e r load l o a d CT C T Current C u r r e n t Transformer T r a n s f o r m e r DEH D E H Direct D i r e c t Electric E l e c t r i c Heating H e a t i n g IP I P Ingress I n g r e s s Protection P r o t e c t i o n NER N E R Neutral N e u t r a l Earth E a r t h Resistor R e s i s t o r OCTC O C T C Off O f f Circuit C i r c u i t Tap T a p Changer C h a n g e r OFWF O F W F Oil O i l Forced F o r c e d Water W a t e r Forced F o r c e d OLTC O L T C On O n Load L o a d Tap T a p Changer C h a n g e r ONAF O N A F Oil O i l Natural N a t u r a l Air A i r Forced F o r c e d ONAN O N A N Oil O i l Natural N a t u r a l Air A i r Natural N a t u r a l U U m m VPI V P I Highest H i g h e s t voltage v o l t a g e for f o r equipment e q u i p m e n t Vacuum V a c u u m Pressure P r e s s u r e Impregnation I m p r e g n a t i o n Project P r o j e c t development, d e v e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 7 7 of o f 11 1 1 granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Interna I n t e r n a 5.2 5 . 2 Changesfrom C h a n g e s f r o m previous p r e v i o u s version v e r s i o n Changesin C h a n g e s i n version v e r s i o n 4.0 4 . 0 e e Consolidated C o n s o l i d a t e d with w i t h latest l a t e s t versions v e r s i o n s og o g IEC I E C standards s t a n d a r d s and a n d IOGPstandard I O G P s t a n d a r d S-720 S - 7 2 0 e e Reference R e f e r e n c e update u p d a t e latest l a t e s t versions v e r s i o n s og o g IEC I E C standards. s t a n d a r d s . e e Removed R e m o v e d requirement r e q u i r e m e n t whois w h o i s covered c o v e r e d in i n standards. s t a n d a r d s . e e Created C r e a t e d and a n d implementet i m p l e m e n t e t an a n datasheet d a t a s h e e t ST518 S T 5 1 8 in i n Docmapfor D o c m a p f o r in i n accordance a c c o r d a n c e with w i t h |OGP | O G P S-720 S - 7 2 0 Changed C h a n g e d some s o m e requirementto r e q u i r e m e n t t o information i n f o r m a t i o n element e l e m e n t to t o understand u n d e r s t a n d the t h e purpose p u r p o s e of o f some s o m e of o f the t h e requirement. r e q u i r e m e n t . Changesin C h a n g e s i n version v e r s i o n 3.02: 3 . 0 2 : Document D o c u m e n t updated u p d a t e d from f r o m template t e m p l a t e to t o template. t e m p l a t e . Wording W o r d i n g " " hanged h a n g e d to t o "Insignificant " I n s i g n i f i c a n t changes, c h a n g e s , performed p e r f o r m e d by b y system s y s t e m administrator, a d m i n i s t r a t o r , on o n behalf b e h a l f of o f author/owner. a u t h o r / o w n e r . Changesin C h a n g e s i n version v e r s i o n 3.01: 3 . 0 1 : Published P u b l i s h e d in i n new n e w minorversion m i n o r v e r s i o n as a s part p a r t of o f the t h e GEM-project G E M - p r o j e c t (Governing ( G o v e r n i n g Element E l e m e n t Management). M a n a g e m e n t ) . TR-documentis T R - d o c u m e n t i s digitalized, d i g i t a l i z e d , and a n d each e a c h requirement r e q u i r e m e n t elementis e l e m e n t i s now n o w identified i d e n t i f i e d with w i t h a a unique u n i q u e ID. I D . Changesin C h a n g e s i n version v e r s i o n 3: 3 : General: G e n e r a l : Editorial E d i t o r i a l changes, c h a n g e s , updated u p d a t e d IEC I E C / / IEEE I E E E references r e f e r e n c e s and a n d added a d d e d referencesto r e f e r e n c e s t o TR3120 T R 3 1 2 0 Section S e c t i o n 2.1: 2 . 1 : Deleted D e l e t e d requirements r e q u i r e m e n t s for f o r base b a s e case c a s e transformers t r a n s f o r m e r s Section S e c t i o n 2.3: 2 . 3 : Deleted D e l e t e d requirement r e q u i r e m e n t for f o r uniform u n i f o r m winding w i n d i n g insulation i n s u l a t i o n and a n d included i n c l u d e d reference r e f e r e n c e to t o IEC I E C 61378-1 6 1 3 7 8 - 1 Section S e c t i o n 2.5: 2 . 5 : Removed R e m o v e d requirementfor r e q u i r e m e n t f o r 110 1 1 0 % % core c o r e dimensioning d i m e n s i o n i n g is i s required r e q u i r e d for f o r all a l l type t y p e of o f transformers t r a n s f o r m e r s Section S e c t i o n 2.9: 2 . 9 : Non-technical N o n - t e c h n i c a l information i n f o r m a t i o n removed r e m o v e d Section S e c t i o n 2.11: 2 . 1 1 : New N e w section s e c t i o n added a d d e d for f o r vibration v i b r a t i o n dampers d a m p e r s Section S e c t i o n 3.6: 3 . 6 : Updated U p d a t e d text t e x t and a n d that t h a t bushing b u s h i n g type t y p e will w i l l be b e described d e s c r i b e d in i n datasheet d a t a s h e e t Section S e c t i o n 3.7: 3 . 7 : Removed R e m o v e d requirement r e q u i r e m e n t for f o r CT C T for f o r thermal t h e r m a l image i m a g e Section S e c t i o n 4.3: 4 . 3 : The T h e transformer t r a n s f o r m e r core c o r e shall s h a l l be b e dimensioned d i m e n s i o n e d for f o r continuous c o n t i n u o u s operation o p e r a t i o n at a t 110 1 1 0 % % of o f rated r a t e d voltage v o l t a g e referred r e f e r r e d to t o the t h e principal p r i n c i p a l tapping t a p p i n g and a n d rated r a t e d power. p o w e r . Section S e c t i o n 4.6: 4 . 6 : Fire F i r e class c l a s s updated u p d a t e d from f r o m FO F O to t o F1 F 1 Project P r o j e c t dev d e v elopment, e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 8 8 of o f 11 1 1 granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Internal I n t e r n a l 5.3 5 . 3 References R e f e r e n c e s The T h e documents d o c u m e n t s listed l i s t e d below b e l o w include i n c l u d e provisions p r o v i s i o n s and a n d guidelines g u i d e l i n e s which, w h i c h , through t h r o u g h reference r e f e r e n c e in i n this t h i s specification, s p e c i f i c a t i o n , constitute c o n s t i t u t e provisions p r o v i s i o n s and a n d guidelines g u i d e l i n e s of o f this t h i s specification. s p e c i f i c a t i o n . SR-48025 S R - 4 8 0 2 5 - - Latest L a t e s t issue i s s u e of o f the t h e referred r e f e r r e d document d o c u m e n t shall s h a l l be b e used u s e d unless u n l e s s otherwise o t h e r w i s e agreed. a g r e e d . Other O t h e r recognized r e c o g n i z e d standards s t a n d a r d s may m a y be b e used u s e d provided p r o v i d e d it i t can c a n be b e shown s h o w n that t h a t they t h e y meet m e e t or o r exceed e x c e e d the t h e requirements r e q u i r e m e n t s and a n d guidelines g u i d e l i n e s of o f the t h e standards s t a n d a r d s referenced r e f e r e n c e d below. b e l o w . Note N o t e that t h a t references r e f e r e n c e s in i n this t h i s specification s p e c i f i c a t i o n (e.g. ( e . g . references r e f e r e n c e s to t o clause c l a u s e numbers n u m b e r s in i n standards) s t a n d a r d s ) are a r e based b a s e d on o n year y e a r of o f issue i s s u e as a s listed l i s t e d below. b e l o w . Table T a b l e 1: 1 : Standards S t a n d a r d s that t h a t are a r e the t h e basis b a s i s for f o r transformer t r a n s f o r m e r specification s p e c i f i c a t i o n IEC I E C 2011 2 0 1 1 Power P o w e r transformers, t r a n s f o r m e r s , Part P a r t 1: 1 : IEEE I E E E 2010 2 0 1 0 General G e n e r a l Requirements R e q u i r e m e n t s for f o r Liquid- L i q u i d - 60076-1 6 0 0 7 6 - 1 General G e n e r a l C57.12.00 C 5 7 . 1 2 . 0 0 Immersed I m m e r s e d Distribution, D i s t r i b u t i o n , Power, P o w e r , and a n d Regulating R e g u l a t i n g Transformers T r a n s f o r m e r s IEEE I E E E 2010 2 0 1 0 C57.12.90 C 5 7 . 1 2 . 9 0 Test T e s t Code C o d e for f o r Liquid-Immersed L i q u i d - I m m e r s e d Distribution, D i s t r i b u t i o n , Power, P o w e r , and a n d Regulating R e g u l a t i n g Transformers T r a n s f o r m e r s IEC I E C 2011 2 0 1 1 Power P o w e r transformers, t r a n s f o r m e r s , Part P a r t 2: 2 : IEEE I E E E 2010 2 0 1 0 General G e n e r a l Requirements R e q u i r e m e n t s for f o r Liquid- L i q u i d - 60076-2 6 0 0 7 6 - 2 Temperature T e m p e r a t u r e rise r i s e C57.12.00 C 5 7 . 1 2 . 0 0 Immersed I m m e r s e d Distribution, D i s t r i b u t i o n , Power, P o w e r , and a n d Regulating R e g u l a t i n g Transformers T r a n s f o r m e r s IEC I E C 2013 2 0 1 3 Power P o w e r transformers, t r a n s f o r m e r s , Part P a r t 3: 3 : IEEE I E E E 2010 2 0 1 0 General G e n e r a l Requirements R e q u i r e m e n t s for f o r Liquid- L i q u i d - 60076-3 6 0 0 7 6 - 3 Insulation I n s u l a t i o n levels, l e v e l s , dielectric d i e l e c t r i c C57.12.00 C 5 7 . 1 2 . 0 0 Immersed I m m e r s e d Distribution, D i s t r i b u t i o n , Power, P o w e r , and a n d tests t e s t s and a n d external e x t e r n a l clearances c l e a r a n c e s Regulating R e g u l a t i n g Transformers T r a n s f o r m e r s in i n air a i r IEC I E C 2006 2 0 0 6 Power P o w e r transformers, t r a n s f o r m e r s , Part P a r t 5: 5 : IEEE I E E E 2010 2 0 1 0 General G e n e r a l Requirements R e q u i r e m e n t s for f o r Liquid- L i q u i d - 60076-5 6 0 0 7 6 - 5 Ability A b i l i t y to t o withstand w i t h s t a n d short s h o r t C57.12.00 C 5 7 . 1 2 . 0 0 Immersed I m m e r s e d Distribution, D i s t r i b u t i o n , Power, P o w e r , and a n d circuit c i r c u i t Regulating R e g u l a t i n g Transformers T r a n s f o r m e r s IEC I E C 2005 2 0 0 5 Power P o w e r transformers, t r a n s f o r m e r s , Part P a r t 7: 7 : IEEE I E E E 2010 2 0 1 0 General G e n e r a l Requirements R e q u i r e m e n t s for f o r Liquid- L i q u i d - 60076-7 6 0 0 7 6 - 7 Loading L o a d i n g guide g u i d e for f o r oil- o i l - C57.12.00 C 5 7 . 1 2 . 0 0 Immersed I m m e r s e d Distribution, D i s t r i b u t i o n , Power, P o w e r , and a n d immersed i m m e r s e d power p o w e r Regulating R e g u l a t i n g Transformers T r a n s f o r m e r s transformers t r a n s f o r m e r s IEC I E C 2005 2 0 0 5 Power P o w e r transformers, t r a n s f o r m e r s , Part P a r t 10: 1 0 : IEEE I E E E 2010 2 0 1 0 Test T e s t Code C o d e for f o r Liquid-Immersed L i q u i d - I m m e r s e d 60076-10 6 0 0 7 6 - 1 0 Determination D e t e r m i n a t i o n of o f sound s o u n d C57.12.90 C 5 7 . 1 2 . 9 0 Distribution, D i s t r i b u t i o n , Power, P o w e r , and a n d Regulating R e g u l a t i n g levels l e v e l s Transformers T r a n s f o r m e r s Project P r o j e c t development, d e v e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 9 9 of o f 11 1 1 granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Internal I n t e r n a l IEEE I E E E 2011 2 0 1 1 C57.12.91 C 5 7 . 1 2 . 9 1 Test T e s t Code C o d e for f o r Dry-Type D r y - T y p e Distribution D i s t r i b u t i o n and a n d Power P o w e r Transformers T r a n s f o r m e r s IEC I E C 2004 2 0 0 4 Power P o w e r transformers, t r a n s f o r m e r s , Part P a r t 11: 1 1 : IEEE I E E E 2005 2 0 0 5 General G e n e r a l Requirements R e q u i r e m e n t s for f o r Dry-Type D r y - T y p e 60076-11 6 0 0 7 6 - 1 1 Dry-type D r y - t y p e transformers t r a n s f o r m e r s C57.12.01 C 5 7 . 1 2 . 0 1 Distribution D i s t r i b u t i o n and a n d Power P o w e r Transformers, T r a n s f o r m e r s , Including I n c l u d i n g Those T h o s e with w i t h Solid-Cast S o l i d - C a s t and/or a n d / o r Resin R e s i n IEEE I E E E 2011 2 0 1 1 Encapsulated E n c a p s u l a t e d Windings. W i n d i n g s . C57.12.91 C 5 7 . 1 2 . 9 1 Test T e s t Code C o d e for f o r Dry-Type D r y - T y p e Distribution D i s t r i b u t i o n and a n d Power P o w e r Transformers T r a n s f o r m e r s IEC I E C 2008 2 0 0 8 Power P o w e r transformers, t r a n s f o r m e r s , Part P a r t 12: 1 2 : IEEE I E E E 2005 2 0 0 5 General G e n e r a l Requirements R e q u i r e m e n t s for f o r Dry-Type D r y - T y p e 60076-12 6 0 0 7 6 - 1 2 Loading L o a d i n g guide g u i d e for f o r dry-type d r y - t y p e C57.12.01 C 5 7 . 1 2 . 0 1 Distribution D i s t r i b u t i o n and a n d Power P o w e r power p o w e r transformers t r a n s f o r m e r s Transformers, T r a n s f o r m e r s , Including I n c l u d i n g Those T h o s e with w i t h Solid-Cast S o l i d - C a s t and/or a n d / o r Resin R e s i n Encapsulated E n c a p s u l a t e d Windings W i n d i n g s IEC I E C 60076-14 6 0 0 7 6 - 1 4 2013 2 0 1 3 Power P o w e r transformers, t r a n s f o r m e r s , Part P a r t 14: 1 4 : Design D e s i g n and a n d application a p p l i c a t i o n of o f liquid-immersed l i q u i d - i m m e r s e d power p o w e r transformers t r a n s f o r m e r s using u s i n g high- h i g h - temperature t e m p e r a t u r e insulation i n s u l a t i o n materials m a t e r i a l s IEEE I E E E 1276 1 2 7 6 2000 2 0 0 0 IEEE I E E E Guide G u i d e for f o r the t h e application a p p l i c a t i o n of o f High-Temperature H i g h - T e m p e r a t u r e Insulation I n s u l a t i o n Materials M a t e r i a l s in i n Liquid-Immersed L i q u i d - I m m e r s e d Power P o w e r Transformers T r a n s f o r m e r s IEC I E C 2003 2 0 0 3 Tap-changers, T a p - c h a n g e r s , Part P a r t 1: 1 : IEEE I E E E 2012 2 0 1 2 Requirements R e q u i r e m e n t s for f o r Load L o a d Tap T a p 60214-1 6 0 2 1 4 - 1 Performance P e r f o r m a n c e requirements r e q u i r e m e n t s C57.131 C 5 7 . 1 3 1 Changers C h a n g e r s and a n d test t e s t methods m e t h o d s IEC I E C 2011 2 0 1 1 Converter C o n v e r t e r Transformers, T r a n s f o r m e r s , Part P a r t IEEE I E E E 1998 1 9 9 8 Practices P r a c t i c e s and a n d Requirements R e q u i r e m e n t s for f o r 61378-1 6 1 3 7 8 - 1 1: 1 : Transformers T r a n s f o r m e r s for f o r industrial i n d u s t r i a l C57.18.10 C 5 7 . 1 8 . 1 0 Semiconductor S e m i c o n d u c t o r Power P o w e r Rectifier R e c t i f i e r applications a p p l i c a t i o n s Transformers T r a n s f o r m e r s IEC I E C 2008 2 0 0 8 Insulated I n s u l a t e d bushings b u s h i n g s for f o r IEEE I E E E 2004 2 0 0 4 General G e n e r a l Requirements R e q u i r e m e n t s and a n d Test T e s t 60137 6 0 1 3 7 alternating a l t e r n a t i n g voltages v o l t a g e s above a b o v e C57.19.00 C 5 7 . 1 9 . 0 0 Procedure P r o c e d u r e for f o r Power P o w e r Apparatus A p p a r a t u s 1000 1 0 0 0 V V Bushings B u s h i n g s IEC I E C 2012 2 0 1 2 Fluids F l u i d s for f o r electrotechnical e l e c t r o t e c h n i c a l IEEE I E E E 2006 2 0 0 6 Guide G u i d e for f o r Acceptance A c c e p t a n c e and a n d 60296 6 0 2 9 6 applications a p p l i c a t i o n s – – unused u n u s e d C57.106 C 5 7 . 1 0 6 Maintenance M a i n t e n a n c e of o f Insulating I n s u l a t i n g Oil O i l in i n mineral m i n e r a l insulating i n s u l a t i n g oils o i l s for f o r Equipment E q u i p m e n t Project P r o j e c t development, d e v e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 10 1 0 of o f 11 1 1 granularity=word tetml={elements={line} glyphdetails={all}} contentanalysis={punctuationbreaks=false dehyphenate=false shadowdetect=false} layoutanalysis={tabledetect=0 layoutdetect=3} structureanalysis={list=true} Requirements: R e q u i r e m e n t s : Transformers T r a n s f o r m e r s Classification: C l a s s i f i c a t i o n : Internal I n t e r n a l transformers t r a n s f o r m e r s and a n d switchgear s w i t c h g e a r IEC I E C 2012 2 0 1 2 Instrument I n s t r u m e n t transformers t r a n s f o r m e r s – – IEEE I E E E 2008 2 0 0 8 Requirements R e q u i r e m e n t s for f o r Instrument I n s t r u m e n t 61869-2 6 1 8 6 9 - 2 Part P a r t 2: 2 : Additional A d d i t i o n a l C57.13 C 5 7 . 1 3 Transformers T r a n s f o r m e r s requirements r e q u i r e m e n t s for f o r current c u r r e n t transformers t r a n s f o r m e r s IEC I E C 60076-16 6 0 0 7 6 - 1 6 2011 2 0 1 1 Power P o w e r transformers, t r a n s f o r m e r s , Part P a r t 16: 1 6 : Transformers T r a n s f o r m e r s for f o r wind w i n d turbine t u r b i n e applications a p p l i c a t i o n s NA N A NA N A NA N A Table T a b l e 2: 2 : Other O t h e r technical t e c h n i c a l requirements r e q u i r e m e n t s TR0042 T R 0 0 4 2 Surface S u r f a c e preparation p r e p a r a t i o n and a n d protective p r o t e c t i v e coating c o a t i n g TR3120 T R 3 1 2 0 Electrical E l e c t r i c a l equipment, e q u i p m e n t , general g e n e r a l requirements r e q u i r e m e n t s Project P r o j e c t development, d e v e l o p m e n t , Requirements, R e q u i r e m e n t s , TR3123, T R 3 1 2 3 , Version V e r s i o n 4.0 4 . 0 Page P a g e 11 1 1 of o f 11 1 1 0.00 0.00 0.00 0.01 0.47 0.73 0.01 0.47 0.73 0.50 0.50 0.50 0.50 0.50 0.50