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Summary of Contents for GE IAV51A
- Page 1 GEH-1814A INSTRUCTIONS SUPERSEDES GEH·1814 VOLTAGE RELAYS Types IAV51A IAV52C IAV51D IAV53A IAV53B IAV51K IAV53C IAV52 A IAV53D SWITCHGEAR DEPARTIEIT GENERAL ELECTRIC PHILADELPHIA,...
- Page 2 GEH-1814 Voltage Relays Type IAV . .., TIME DIAl SETTING 9 10 ::::e - 18 0 PERCENT OF MINIMUM OP RATING VOLTAGE � ..Fig. T ime-Voltage Curves For Types JAV51A And IAV52A Relays...
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Page 3: Application
OPERATIWG C HARACTERISTICS The case is suitable for either surface or semi flush panel mounting and an assortment of hardware The Type IAV51A is an overvoltage relay with is provided for either mounting. The cover attaches single-circuit closing contacts which close when... - Page 4 Voltage Relays Type IAV GEH-1814 The IAV51K relay is similar to the IAV51D except that it has an external capacitor. Amperes Function 0.2-Amp Tap 2-Amp Tap V52A relay is similar in every respect to the V51A relay except that it has additional contacts for closing a second circuit.
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Page 5: Table Of Contents
13.4 0{64) 13.3 0.93 12.2 60 - Cycle Burdens � IAV510 A{10) 37.4 0.21 B{15 30.6 0.52 C{25 22.2 0.82 18.3 IAV51A 0.34 0{40) � 13.6 0.97 13.2 & 0.35 IAV52A 0.34 IAV510 A(28 31.4 0.15 4.55 0.33 B(42 27.6 0.42... - Page 6 GEH-1814 Voltage Relays Type IAV PERCENTAGE 0 F VOLT AGE TO C L 0 S E lEFT CONTACTS AT WHICH RIGHT CONTACTS WERE SET TO CLOSE. TIME TO CLOSE RIGHT CONTACTS WHEN VOLTAGE IS THAN V 0 L TAG E R E Q U C L 0 S E LE FT CON T A C T, CUiVE.
- Page 7 GEH-1814 Voltage Relays Type IAV • . - - · · - -.- t--+- ,--! t-r : ,_ • • *'5TD -,-- - " ,.--- --+ --+- -- T TAP. """ 0.• :::: ::!: O. T 0 , & 0 , 5 c TAP .•...
- Page 8 Voltage Relays Type IAV GEH-1814 PERCENTAGE OF VOLTAGE TO CLOSl AT WHICH RIGHT CONTACTS WERE SET 70% 80 90 95 TIME TO CLOSE RIGHT CONTACTS WHEN VOLTAGE IS SUDDENL REDUCED FROM VALUE EQUAL OR GREATER THAN VOLTAGE REQUIRED TO CLOSE LEFT CONTACT TO VALUES ON THE CURVE TIME TO CLOSE LEFT CONTACTS WHEN VOLTAGE NCREASED FROM ZERO TO VALUES ON THE CURVE.
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Page 9: Receiving, Handling And Storage
Voltage Relays Type IAV GEH-1814 RECEIVING, HANDLING AND STORAGE RECEIVING HANDLING Reasonable care should be exercised in un packing the relay in order that none of the parts get These relays, when not shipped as a part of a injured or the adjustments disturbed. control panel, will be shipped in cartons designed to protect them against damage. -
Page 11: Iav53A, Iav53B
Fig. 1 shows the time-voltage characteristics of · the Type IAV51A and IAV52A relays with the dial "Maintenance." OPERATION Before the relay is put in s ervice, it s hould be such as the Types IAV51A, IAV51D and IAV52A. - Page 13 Voltage Relays Type IAV GEH-1814 Fine silver contacts should not be cleaned it is necessary to replace the jewel, the jewel with knives, files, or abrasive paper or cloth. should be turned up until the disk is centered in the air gap, after which it should be locked in position Knives or files may leave scratches which increase by the set screw provided for the purpose.
- Page 15 GEH-1814 Voltage Relays Type IAV 00 0 NUMBERING OF STUDS (FRONT VIEW) OUTLINE 2DRILL HOLES � CASE PANEL PANEL DRILLING FOR SEMI-FLUSH TIN G (FRONT VIEW) �NEL DRIL LING F OR SUR FA CE MOUNTING (FRONT VIEW) VIEW SHOWING ASSEMBLY OF HARDWARE F OR SU RFACE MTG.
- Page 16 Voltage Relays Type IAV GEH-1814 PANE.L LOCATION �TG. SURFACE SEMI-FLUSH co&bo NUMBE�NG OF STUDS (FRONT VIEW) OUTLINE � CASE PANEL SEMI-FLUSH PANEL DR ILLING VIEW) MOUNTING (FRONT SHOWING ASSEMBLY OF VIEW [::; HARDWARE NTG. FOR SURFACE ON STEEL PANELS � .
- Page 17 INSTRUCTIONS GEIH814F Supersedes GEH-1814E VOLTAGE RELAYS TYPES IAV53D IAV51A IAV53K IAV52A IAV53L IAV53A IAV53B IAV53M IAV53N IAV53C GENERAL ELECTRIC...
- Page 18 GEH - 1 81 4 CONTENTS PAGE DESCR I PT I ON ..............APPL I CATI ON .
- Page 19 G EH- 1 814 VOLTAGE RELAYS TYPES IAV 5 1 A IAV52A I AV 53A , 53B, 53C , 53D , 53K, 5 3L , 5 3M and 53N DESCRI PTION Type IAV relays are s i ngle-phase , voltage operated , i nd ucti on-d i s k relays with adj usta ble t i me delay . The IAV5 1A and IA\52A are overvoltage relays .
- Page 20 GEH-1814 TABLE I Con't. VOLTAGE RAT I NGS RELAY 1 40 1 00 IAV53A 1 1 5 1 1 5 1 1 5 1 1 5 2 30 2 30 2 30 IAV53B 1 1 5 1 1 5 IAV 53C 1 1 5 1 1 5 1 1 5...
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Page 21: Iav53D
Burdens for the vari ous rel ay types are gi ven i n Tab l e III. TABLE III RELAY VOLTAGE TAPn VOLT- POWER WATTS TYPES S ETTING RATING AMPS FACTOR 60 - CYCLE BURDENS IAV51A 1. 3 0.34 & 0.35 IAV52A 0.34 0.33 3. 9 0.32 0.31 0.31 0.35 IAV53A, 0.32 IAV53B, 0.30... -
Page 22: No Taps
GEH - 1 81 4 TABLE I I I Can ' t . ) POWER RELAY VOLTAGE TAP ** VOLT- WATTS AMPS FACTOR TYPES RAT I NG S ETT I NG 25 - CYCLE BURDE N S ( Can ' t . ) 0 . -
Page 23: Acceptance Tests
GtH-1214 seal - i n uni t pi cks up and sea l s i n . When the seal - i n u n i t pi cks up , i t ra i s es a target i nto vi ew wh i ch l a tches up and rema i ns exposed unti l rel eased by press i ng a button beneath th e l ower- l eft corner of the cover . -
Page 24: Mechan I Cal I Nspect I On
G EH-1814 CAUT I ON EVERY C I RCU IT I N THE DRAWOUT CASE HAS AN AUX I L I ARY BRUSH . IT I S ESPECIALLY I MPORTANT ON CURRENT C I RCU ITS ANU OTH ER C I RCUITS W I TH SHORT I NG BARS THAT THE AUX I L IARY BRUSH BE B ENT H I GH ENOUGH TO E NGAGE THE CONNECT I NG PLUG OR TEST PLUG B EFORE TH E MAI N B RUSHES DO . -
Page 25: I Nstallat Ion
G EH - 1 81 4 P I CKUP VOLTAGE TEST The pi ckup vol tage shoul d be checked on one or more taps on rel ays wh i ch cl ose contacts on i ncreas i ng vol tag e . The drop- out vol tage shoul d be checked on o n e or more taps on rel ays which cl ose contacts o n dec reas i ng vol tage . -
Page 26: Serv I C I Ng And Adjustments
GEH - 1 81 4 MAI NTENANCE D I S K AN D BEARI NGS The l ower j ewel may be tes ted for cracks by expl ori ng i ts surface wi th the poi n t of a fi ne needl e . I f i t i s nece ssary to re pl ace the j ewel , the jewel shou l d be turned u p unti l the d i s k i s centered i n th e ai r gap, after wh i ch i t shou l d be l ocked i n pos i ti on by the set screw provi ded for the purpose . -
Page 27: T Ime Setting
. Fi g . 12 s hows t he t i me-vol tage c haracteri stics o f t he Type IAV51A and IAV52A rel ays wi th the d i a l setti ng for obta i ni ng each characteri s ti c . - Page 28 GEH-1814 O PERAT I NG CO I L R E S I STOR "WHEN USED" • SHORT F I NG E R Fi g . ( K-6209664-6) INTERNAL CONNECTIONS O F THE TYPE I AV51A RELAY , FRONT V I EW...
- Page 29 GEH - 1 81 4 O P E R A T I N G C O I L S E A L- I �� UN I T • • • F i g . 2 ( K-6209665-3) I NTERNAL CONNECT IONS OF TH E TYPE IAV52A RELAY , FRONT V I EW...
- Page 30 GEH - 1 81 4 U N I T S E A L - I N U N ; T • • • • Fi g . 3 ( K-6209666- 3 ) I NTERNAL CONNECTI ONS OF THE TYPE IAV53A RELAY , FRONT V I EW...
- Page 31 O PE R A T I N G --- -:>-___,.�-. • "' • • "' F I N GE R Fi g . 4 ( K-6400 1 43-2) I NTERNAL CONNECTI ONS OF TH E TYPES I AV53B AND IAV530 RELAYS , FRONT V I EW...
- Page 32 GEH-1814 V O L T A G E U N I T S E A l - I N U N I T • • Fi g . 5 { K- 6400 385- 2 ) I NTERNAL CONNECT I ONS OF THE TYPE IAV53C RELAY , FRONT V I EW...
- Page 33 GEH - 1 81 4 I !: V O L T A G E E L E M E N T • = S H O R T F I N G E R ( K-6556579-0 ) I NTERNAL CONNECT I ON D I AG RAM FOR TYP"£ IAV53M RELAY F i g .
- Page 34 8 1 4 CO N N EC T I N G P L UG M A I N B R U S H C O N N E CT I N G B LO C K A UX I L I AR Y T E R M I N A L B LO C K S H OR T I N G N OT E : A F T E R...
- Page 36 GEH - 1 8 1 4 A-C B US O R L I NE POTE N T I AL T RANS. C LOSES ON ..29 OVERVOL TAGE TO AU X ILIA R Y RELAYS 6 i 6 5 1 5 I ND I C A TI N G D E V I C ES C LO SES O N...
- Page 37 GEH-1814 OV E R VOLTAGE R ELAY IAV51A TY P E TI ME \() LTAGE C U RVES ('"\ T IME D I A L SETI I N 6 2 3 4 5 9 1 0 1 1 0 1 70...
- Page 38 �. I r� � O F' L E F T CON TACT P I C K U P ) R i GH T CONT ACT - � ; g ��� nv6 Er r � � 5 0 % 6 . 0 % 7 0 'fo SO 'fo ;;><:...
- Page 39 ( I N "'to0 R I G H T CO N TACT C O F L E F T C ON TA C T 90 95 ..,., <.C T I ME TO CLOSE R I GHT CONTACTS WH EN VOLTAGE ..
- Page 40 GEH - 1814 TOP PI VOT ..TAR G E T STATIONARY · · � MAIN S E A L- I N UN I T S T AT I O N A RY B R U S t1 A N D GOtH A C T - CON T A C T...
- Page 41 GE H- 18 14 AN D DIS K LO W E R -� � J E W E L S C R EW F i g . (8 00 73 79 ) BA CK VI EW OF TY PE IA V5 1A RE LA Y WI TH DR AW N...
- Page 42 GEH - 1814 A -C S U P P L Y O F C O R R E C T F R E Q U E N C Y PO T E N T I O M E T E R M F-2 T I M E R D E V I C E F U N C T I O N...
- Page 43 GEH- 18 14 A - C S U P P L Y O F C O R R E C T F R E Q U E N C Y P O T E N T I O M E T E R MF-2 T I ME R 5 8 - U N D E R A N D O V E R V O L T A G E R E L A Y , T Y P E...
- Page 44 GEH-18 14 STUDS SURFACE M T G . - · - SCREW - 10- 3 2 :: : -'- - ( OR S TU D ) OUTLINE PAP.EL DRLl loiG FOR SE MI - FLUSH IIOJNTWG (FRONT V£W ) VIEW SH•:NING A5S£ MI:LY OF HAROWAFCE FOR SURfACE MTG.
- Page 45 GEH- 1814 P A N EL LO C AT I O N SU R FA C E M T C, U 6 8 MtJ ) 6 ..6 25 ( I S M M ) cu r our M AY (2 H OLES) P1...
- Page 46 GEH- 1814 15 1 3 1 1 oo o o o 0 0 0 0 0 20 1 8 16 1 4 12 SU RFACE G L ASS 9 1 5 3 I M TG 0 00 00 0 0 0 0 0 0 8 6 4 2 N U MBE R I N G STU DS...
- Page 48 G EN E RA L E L ECT R IC COM PANY POW E R SYST E M S MANAG E M E NT B US I N ESS D EPT. M A LV E R N , PA 1 9355 G E N E R A L E L E C T R I C 12-77...
- Page 49 GEH- 18 14J INS TR UCTIONS VOLTAGE RE LAYS TYPES I AV 5 1A I AV 5 3 D IAV52A IAV53K I AV 5 3A I AV 5 3 L I AV 5 3 B I AV 53M I AV 5 3 C I AV 5 3 N GENERA L ELECTRIC...
- Page 50 G E H - 1 81 4 TAB LE OF CONTE NTS PAG E D ESCRI PTION ..............APPLICATION .
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Page 51: D Escri Ption
G E H- 1 81 4 VOLTAG E R E LAYS TYP E S IAV 5 1 A IAV52A IAV 53A, 538, 53C, 530, 53K, 53L, 5 3 M , D E SCRIPTI O N Type IAV re lays a re sing le-phase, voltage-operated, i n d u ction-d isk rel ays with adj usta b l e time d e l ay. -
Page 52: Rati Ngs A N D B U R Dens
G E H- 1 81 4 RATINGS A N D B U R D E N S The operati n g-circuit rati ngs ava i lable a re shown in Ta ble I . The operat i n g coi l w i l l sta n d rated volta g e conti n uously on any ta p, and wi l l sta nd ta p voltage conti n uously o n t h e taps a bove rated volta g e . - Page 53 G E H - 1 8 1 4 T h e ta p setting used on t h e sea l - i n element is dete rm i n ed b y t h e cu rrent d rawn b y the tri p coi l .
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Page 54: Characteristics
G E H-1 8 1 4 TAB LE I l l (conti n u ed) TAPtt VO LT- POW E R R E LAY VO LTAG E AMPS FACTOR WAITS TYPES RATING SEITI NG 50 - CYCLE B U RD E NS 0.34 IAV5 1 A 1 1 5... -
Page 55: Constr Uction
G E H- 1 81 4 the other two ph ases a re g rou nded, the relay voltage i ncreases to rated volta g e a n d the left-hand contacts close in a pp roxi mately 1 0 seconds. The IAV53D relay is si m i lar to the Ty pe IAV538 relay except that it has a sh o rter time cu rve. -
Page 56: R Eceiving, Han Dling An D Storag E
G E H-1 81 4 volta g e ci rcu its a re opened . After the con necting p l u g has been removed, the lower l atch can be rel eased and the cradle easi ly d rawn out. To replace the crad le, the reve rse o rd e r sho u ld b e fo l lowed . -
Page 57: M Echan Ical I Nspection
G E H - 1 81 4 Remove the relay from its case and check that there are no bro ken or cracked molded pa rts o r other s i g n s o f p hysical d amage, and that a l l screws a re tight. Check that the s h o rti n g bars a re i n t h e proper locatio n (s) a n d that they a re properly formed (see Fig u re 9 ) . -
Page 58: Power Req U I Rements, Genera L
G E H - 1 81 4 Powe r Req u i rements, General A l l d evices operati ng on a lternating cu rrent {AC) a re affected by fre q u e ncy. Si n ce n o n -s i n usoid a l wavefo rms can be a n a l yzed as a fu n d a m e n ta l f re q u e n cy p l u s h a rmon ics of that fu ndamenta l freq uency, it fol l ows that a lte rnating-cu rrent d evices { re lays) wi l l be affected by a p p l i ed waveforms. -
Page 59: I N Stallation
G E H- 1 8 1 4 I N STALLATION I NSPECTION At the time of i n sta l l ati on, the relay should be i nspected for ta rn ished contacts, l oose screws, or other i m perfections. If any trouble is fou nd, it sho u ld be corrected in the m a n n e r d escri bed u nd e r Check t h e nameplate fo r mod el n u mber a n d rati n g . -
Page 60: Contact Cleaning
G E H - 1 8 1 4 CONTACT CLEAN I N G F o r clea n i n g fine silver contacts, a flexi ble b u rn ish i n g tool sh o u l d b e used . Th is consists o f a flexi b l e str i p of meta l with a n etch-ro u g hened su rface, resembl i n g i n effect a su perfi n e fi l e . -
Page 61: B Eari N G A N D Contacts
G E H - 1 8 1 4 O n t h e u nd e r - a n d overvoltage rel ays, such a s t h e I AV 5 3A, I AV 5 3 B , I AV 5 3 C, I AV 5 3 D , IAV 5 3 K , IAV 5 3 L, IAV53 M , a n d I AV 5 3 N , t h e o pe rati ng voltage f o r a g i v e n ta p s etti n g i s t h e m i n i m u m v o l t a g e a t wh i c h t h e l eft- h a n d contacts cl ose . -
Page 62: List O F F I G U R
G E H - 1 8 1 4 LIST O F FIG U R E S D E SC R I PTI O N PAG E F I G U R E I nt e r n a l Con n ecti o n s of the Ty pe-IAV 5 1 A R e l ay, F r o n t V i e w I nt e r n a l C o n n ecti ons o f t h e Type- IAV52A R e l ay, F ro n t V i e w I nt e r n a l C o n n ecti ons o f t h e Typ e - I AV 53A R e l ay, F ront V i e w I nt e r n a l Con n ecti ons o f t h e Type-IAV 5 3 B a nd - I AV 5 3 D R e l a ys,... - Page 63 G E H - 1 81 4 O P E RAT I N G CO I L R E S I STO R " WH E N U S E D" S EAL- I N S H O RT FI N G E R F i g u re 1 ( K-6209664 [7]) I nternal Con nections of the Type-IAV51 A Relay, Front V iew...
- Page 64 G E H - 1 8 1 4 O P E R A T I N G C O I L S E A L- I �� U N I T • • • F i g u re 2 { K-6209665-3) I nte rnal Con n ections of the Type-IAV52A Rel ay, Front View...
- Page 65 G E H - 1 81 4 E A L - S E A L - I N U N I T U N : T • • • • Fig u re 3 ( K-6209666-3) I nte rnal Co n n ections of the Type-IAV53A Relay, Front V i ew...
- Page 66 G E H-1 81 4 O PE R A T I N G C O I L • • • • F I N G E R Fi g u re 4 ( K-6400 1 43-2) I ntern a l Con nections o f the Type-IAV53 B a n d -IAV 5 3 D Relays, Front View...
- Page 68 G E H-1 81 4 ' r. V O L T A G E E L E M E N T • = S H O R T F I N C E R F i g u re 6 ( K-6556579) I ntern al Con n ection Diagram for Type-IAV 5 3 M R e l ay I �...
- Page 69 G E H - 1 8 1 4 CO N N ECT I N G P L U G M A I N B R U S H CO N N E CT I N G B LO C K A UX I L I AR Y T E R M I N A L B LO C K S HO R T I N G...
- Page 71 G E H - 1 8 1 4 A-C B U S OR L I NE I AL T RANS. C LOSES ON OVERVO L ..=;: U XILIA R Y RELAYS OR 6 1 6 5 1 5 I ND I C A TI N G D E V I C ES C LO SES O N U N DE R VO LTAGE...
- Page 72 G E H - 1 81 4 OV E R V O L T AGE R ELAY TYP E IAV 5 1 A T I M E \{) LTAG E C URVES T IME D I A L SETT I N G 3 4 5 1 1 0 1 40...
- Page 74 ..., R I G H T CO N T A C T C LO S U I N "to0 O F L E F T � p i <: K - C ON TA C T ..--·- .l::lo 90 95 ..
- Page 75 G E H - 1 81 4 TA P BLO C K TOP PI VOT . TAR G E T S T ATICNARY MAIN S E A L - I N U N I T S TAT I O N A RY B R U S H A N D CON TAC T CO N T A C T - L E F T�_...
- Page 76 G E H - 1 8 1 4 • DI SK AN D S H AF T - - · · -- #ib .hE !ilJU: L O W E R ··�· ._ J E W EL. S C R E W Fi g u re 1 6 (8 00 73 79 ) Ba ck V ie w of Ty p e- IA V 5 1 A R e la y, W it hd ra w n Fr...
- Page 77 G E H- 1 81 4 A -C S U P P L Y O F C O R R E C T F R E Q U E N C Y P O T E N T I O M E T E R E.X TE.R N A L C �"P' �C TO�...
- Page 78 G E H - 1 8 1 4 A-C S U P P LY O F C O R R E C T F R E Q U E N C Y MF-2 T I M E R D E V I C E F U N C T I ON N U M B E R S 5 8 - U N D E R A N D O V E R V O L T A G E R E L A Y , T Y P E...
- Page 79 G E H - 1 81 4 - 10- SCREW :: : -'-- - ( OR S TU D ) ou-rLINE PAP£L ORLLioiG FOP SEMI- FLUSH MOON T ..G (FRONT V£W ) VIEW SH·�NG A6S£ M�Y OF HAROWAFi E FOR SURfACE t.tTG. ON STEIL PANELS F i g u re 1 9 (K-6209270-2) Outl i n e and Panel Dri l l i n g for Relay Types IAV5 1 A, IAV52A, IAV53C...
- Page 80 G E H-1 8 1 4 P A N E L L O C A T I O N S E M I - F L USH S U R F A C E ( 2 ) 5 / 1 6 - 1 8 S T U D S 6 .
- Page 81 G E H - 1 8 1 4 EL L S T U D S ( 2 ) 5 / 1 6 - 1 8 S E M I - F L U S H S UR FACE F O R SURFACE M T G . 6 ' 6 2 5 �...
- Page 84 Pro tection and Con trol Business Departmen t G<· m· r a l E lectric C o m p a n y Pr o t l'ct r o n and C o n t r o l 205 G Valley Parkway 1 9 355- 1 33 7 Ma lver n , Pe nmylv a n i a...
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