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- Page 1 GEK-34054H INSTRUCTIONS TIME OVERCURRENT RELAYS TYPES IACS3A FORM 800 AND UP IAC53B FORM 800 AND UP IAC54A FORM 800 AND UP IAC54B FORM 800 AND UP GENERAL ELECTRIC...
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Page 2: Table Of Contents
GEK-34054 TABLE OF CONTENTS DESCRIPTION • • • • • APPLICATION • • • • • CONSTRUCTION • • • • • • • • • RATINGS • • • • • • • TIME-OVERCURRENT UNIT • • • • INSTANTANEOUS UNIT •... -
Page 3: Description
GEK-34054 TIME OVER CURRENT RELAYS TYPES IAC53A FORM AND UP IAC53B FORM AND UP IAC54A FORM AND UP AND UP IAC54B FORM DESCRIPTION The Type IAC 5 3 a nd I AC 5 4 r ela ys cove r ed by the s e i ns tr u c ti ons a r e e x te nd e d -r a ng e , s i n g le - ph a s e ti me... -
Page 4: Application
GEK-34054 APPLICATION Ti me ove r c ur r e n t r e lays a r e us ed e xte n s ively prote c t i on uti li ty i nd us tr ia l d i str i buti on s y s te ms , freque n tly ove r load... -
Page 5: Ratings
GEK-34054 pi c ks i t r a i s e s ta r g e t i n to vi ew tha t latches up and re ma i n s e x pos e d unti l re le a s ed by pre s s i ng button be neath... -
Page 6: Instantaneous Unit
GEK-34054 The one - s e c ond the rma l r a t i n g s a re li s ted in Table I I I . TABLE III TIME OVERCURRENT UNIT 1-SEC RATING -{AMPS) {AMPS) 140.0 19,600 - 12.0 260.0 67,600... -
Page 7: The C On Tinu Ous
GEK-34054 Th e i ns ta nta ne ous uni t c onti nuous r a ti ng t i me s 1. 5 mi ni mum s e tti ng a mpe re s , wh i ch e ve r s ma lle r . -
Page 8: Tap Rating
GEK-34054 t he t r ipping c u r r e n t e xceeds a mpe r e s , a uxilia r y r e la y s hould be u s e d, t he conne c t ions being s uc h tha t t he t r ipping c u r r en t doe s not pa s s t hr oug h t he conta cts o f the ta r g e t a n d s ea l-in c oils o f the pr ote c ti ve r e la y . -
Page 9: Characteristics
GEK-34054 The in s ta n tane ous unit burdens a re lis ted in Ta bl e X. TABLE X RANGE BURDENS AT MIN. BURDENS IN OHMS (Z) tCON- MIN. PICKUP 60 HZ V.A. AT 5 AMPS NEC- TIMES PICKUP RELAYS CALCULATED FROM ONLY... -
Page 10: Acceptance Tests
, a n d t ha t a ll t he s c r e ws a r e t i ght . -
Page 11: Mechanical Inspection
GEK-34054 MEC HANICAL INSPECTION Ther e s hould n oticea ble fr iction when dis k r otated s lowly clockwis e. The dis k s hould r eturn by its elf to its r es t pos ition . Ma ke s ur e contr ol... -
Page 12: Time-Overcurrent Unit
AC r el a ys pr oper l y i t i s essen t i a l t o use a t est volt a ge a n d/or cur r en t wa vef or m t h a t i s si n u soi da l . -
Page 13: Tap
GEK-34054 movi ng ma g n e t towar d d i s k s ha ft d e c re a s e s th e ti me , whi le moving i t away i n c r ea s e s the ti me . Se t th e r ela y... -
Page 14: Table Xi
GEK-34054 TABLE XI UNIT RANGE MINIMUM CALIBRATION MAXIMUM AMPERES AMPERES AMPERES AMPERES 0. 5 4. 0 3. 6 4. 0 4. 5 14. 4 2. 0 16. 0 16. 0 17. 7 10. 0 80. 0 72. 0 80. 0 89. -
Page 15: Installation Time-Overcurrent Unit
GEK-34054 INSTALLATION followi ng t e s t s a r e pe r for me d t he t ime i n s t a lla t ion. T IME-OVERCURRENT UNIT Se t t a p s cr e w on de s ir e d t a p. Us i ng t he t e s t ci r cu i t... -
Page 16: Time-Overcurrent Unit
GEK-34054 These t e s t s a r e i n t en de d t o make s u r e t h a t 't h e r e l a ys h a ve n ot de vi a t e d fr om t he ir or ig ina l s e t t i ng. -
Page 17: Table Xiii
d... -
Page 18: Instantaneous Unit
GEK-34054 Adjust drag magnet obtain closing time near possible to 1.31 seconds, but at least between 1.24 and 1.38 seconds. The magnet should be approximately in the middle of its travel. magnet adjusted loosening under magnet shelf. Moving magnet decreases time. -
Page 19: Renewal Parts
GEK-34054 RENEWAL PARTS recommended that sufficient quantities renewal parts carried stock enable prompt replacement that worn, broken, or damaged. When ordering renewal parts, addres s nearest Sales Office General Electric Company, s pecify the quantity required, name part wanted, complete model number relay... -
Page 20: List Of Figures
GEK-34054 LIST OF FIGURES FIGURE PAGE Cutaway of Drawout Case Showing Position of Auxiliary Brush Type IAC53 Relay Removed from Case (Front View) Type lAC 53 Relay Removed from Case (Rear View} Type IAC53A Internal Connections (Front View) Type IAC53B Internal Connections (Front View} Type IAC54A Internal Connections (Front View) Type IAC54B Internal Connections (Front View) Time/CurrentCharacteristics for the Type-IAC53... - Page 21 GEK-34054 CONN ECTING PLUG AUXILIARY TERMIN AL BLOCK SHORTING NOTE: A FTER ENGAGING A UXILIARY BRUSH, CON NECTING PLUG TRAVELS I NCH BEFORE ENGAGING THE MAIN BRUSH ON THE TERMINAL BLOCK ( 8025039 ) Figure 1 Cutaway of Drawout Case Showing Position of Auxiliary Brush and Shorting Bar...
- Page 22 GEK -34 054 U N IT IN ST A N TA N EO U S TO P A D JU ST A BL E C O MA IN STA TtO N ARY BR USH AN D C ON TACT ASSf M Bl Y SEA L-I N UNI T STATIO N A R Y otSK...
- Page 23 G E K - 3 4 0 5 4 D I S C A N D S H A F T M A G N E A N D TA. P B L O C K. A S S E M B L Y T I M E O S H EL F...
- Page 25 GEK-34054 INDUCTION INDUCTION UNIT SEAL-IN UNIT SHORT FINGER Fig u r e (6 2 09 6 6 2 [ 5 ]) Type IAC54A Int e r na l Conne ct ions ( F r ont Vie w ) INSTANTANEOUS UNIT UNIT T�-�...
- Page 26 GEK-34054 ·' lOGO ••• • o• •• • • ·' ·' ·" . 01 . � .Dt '--' '-'-" "" "" "- -- --'- -'-'-'"- '- -="- -"- -'-" "- 5 31 a i! § 1111 • • • 1 • 110 ·•...
- Page 27 GEK-34054 I I Ull I IIIII I I I 111 .. . , .I .I .I .I I 1111 "' 1111 RWH (BGO SfRI E�} EXW!Df[) ADJUSTI�EHTS RAHHGS UNIT INST. UNIT TII· I E UNIT TAPS Tl ME UNIT I �ST 8' ,, 3·...
- Page 28 GEK-34054 �� SliMC UTm UISTMl-.us; tMIT (I'EJUTIWi TIM( - =-'-- · 1110 �>![ l.et& �RAllHiiTIM( �· R.tMif FOR lllf Y �·.ruo f>lCliU' SETIIIC ..,l T1 pt (S nr PIOWP ( 0 20 8A8 6 9 5-l) Time/Cu r r e nt Cha r a ct e r is t ics t h e Fig ur e...
- Page 29 GEK-34054 P A N E L L O C A T I ON S E M I - F L U S H S UR F A C E ( 2 ) 5 / 1 6 - 1 8 S T U D S 6 .
- Page 30 GEK-34054 I 3 5 0 0 0 - 10- 32 SCREW � :: : ,__ _ (OR S TU D ) NUMBERING OF STUDS ( FRONT VIEW) PlPE:L FOR SEMI - FLUSH DRLLNG MOUNTNG (FRONT VEW ) AU.IEL DRILLING FOR SURF4CE ..al.NTWG &FRONT 'I/£W \ A6S£M8...
- Page 31 GE K-34054 T I MER " STOP" TO I N D I CAT I NG L I GHT WH EN C H EC K I NG P I C KU P O F M A I N UN I T TO I N D I CAT I NG L I GHT WHE N - �...
- Page 34 GE Power Management 21 5 Anderson Avenue Markham , Ontario Canada L6E 1 83 Tel : (905) 294-6222 Fax: (905) 201 -2098 www.ge. com/indsys/pm...
- Page 35 M U LTI LIN GE Power Management 20j Great V alley Parlcway Malvern. PA J 9JJj. JJJ7 6/0 }51 7()00 E rrata Sheet Revisions to 34054H pages 5, 6 and 8 GEK- PAGE S On TA BLE I of this page under PICKUP RANGE� AMPERES the range value f or...