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TYP I CAL T I NE CURVES

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Содержание IRV

Страница 1: ...hase air gap fluxes produced cause a contact closing torque SUPERSEDES I L 41 133 3D Denotes change from superseded 1ssue Indicat i ng Contactor Switch Units IC S 1 and ICS T The d e indicating contac...

Страница 2: ...g Rectifier 0 03 MFD Capacitor D Unit CSl Unit ICS I CO Unit ICS T Fig 1 Type IRV Relay Without Case Front View Fig 2 Type IRV Relay Without Case Rear View 1 23 MFD co Unit m a a m r E l e c t r i c a...

Страница 3: ...resulting in one time curve throughout the range of the relay Across the secondary is connected a non linear resistor known as a varistor The effect of the varis tor is to reduce the voltage peaks ap...

Страница 4: ...it breaker The indicating contactor switch has two taps that provide a pickup setting of 0 2 or 2 amperes To change taps requires connecting the lead located in front of the tap block to the desired s...

Страница 5: ...8 29 0 7 29 4 1 5 51 2 4 51 6 1 7 45 1 2 45 4 16 8 1 8 40 0 7 40 9 1 9 38 0 6 38 12 2 2 34 0 37 34 16 2 5 30 0 24 31 10 1 7 28 0 43 28 15 2 4 21 0 27 21 20 3 1 16 0 20 17 10 40 24 3 6 15 0 15 15 30 4...

Страница 6: ...850 800 920 1008 1120 1216 1500 1800 848 1020 1128 1260 1408 1720 2064 AMPERE CONTINuOUS ONE SECOND POWER AT AT 3 TIMES AT 10 TIMES RA11NG RATING t FACTOR TAP VALUE TAP VALUE TAP VALUE RANGE TAP AMPER...

Страница 7: ...48 459 24 8 174 552 25 9 185 640 21 3 111 306 21 8 120 342 22 5 129 366 23 4 141 413 23 1 B 25 2 163 530 27 183 624 22 8 129 392 24 2 149 460 25 9 168 540 27 3 187 626 29 8 211 fi88 33 260 860 37 5 30...

Страница 8: ...131 6 600 12 0 26 460 16 1 8 16 3 180 0 720 t Thermal capacities for short times other than one second may be calculated on the basis of time being inversely proportional to the square of the current...

Страница 9: ...2 TYP I CAL T I ME CU RVES TYPE C0 2 OVER CU RREN T RELAY 50 60 CYCL ES I T I ME DIAL SETTING I I 1 1 10 I 9 1 1 8 I 7 6 l oo r 5 r 4 I oo 3 I t 2 r r jooojo 3 4 5 6 7 8 9 10 12 14 16 18 20 MUL T I P...

Страница 10: ...T I ME CURVES TYPE C0 5 OVER CURREN T REL AY 50 60 CYCLES 11 i II I j J I I I II I II I I I I T I ME m m 1 1 tt I I I 5 I I I I I I I I I I I II I I I I I I i I i I I I I I i I I I I I II I I I I I I...

Страница 11: ...tl i1 4 _ 1 t r I iT Ii 4 t b t P 3 t1 b 1 f tt 2 f1f 1 4 I H 1 1 r _ I 1 2 o i 1 It lttT il tt I I t l 1H i i l I I i I N I I I _ I I I TYP I CAL T I ME CU RVES TYPE C0 6 I OVER CURRENT R ELAY i I 5...

Страница 12: ...I I I 10 9 1 1 I I I I I I I TYP I CAL T I ME CU VES TYPE C0 7 OVER CURRENT RELAY 0 60 CYCLES T I ME D I AL S ETT I N G lo t o I l oo __ _ _ r 6 7 8 9 10 12 11J 16 JB 20 MULTIP L ES OF TAP VALU E CURR...

Страница 13: ...L T I ME CURVES TYPE C0 8 OVER CURRENT RELAY e0 60 CYCL ES I I I I I 1 T I ME D I AL SETT I NG 1 1 10 9 a 7 6 5 I I 1 3 2 r I 1 1 1 2 2 a 1 5 6 7 a g 10 12 111 16 18 ro MULT I PL ES OF TAP VALUE CURRE...

Страница 14: ...VER CURRENT RELAY 50 60 CYCL ES 1 T I ME D I AL S ETT I NG 1 1 10 1 9 8 7 6 I 5 3 2 _ 1 1 _ r 1 2 10 r 2 3 6 7 8 9 10 12 1 16 18 20 MULT I PLES OF TAP VALUE CURRENT Curve 418249 Fig 9 Typical Time Cur...

Страница 15: ...0 03 0 02 0 01 1 2 J i li 7 8 9 10 1mv L 1 1 l m 1 l f 1 rv 1 l L 1 I 1 l 1 1 1 1 r 1 1 1 l 1 1 1 i 1 1 1 i i r I 1 1 2 3 1 9 10 r f 1 I I 20 JO ItO t 1 r r 11 10 II I 7 i 2 1 2 2888655 TYP I CAL T I...

Страница 16: ...block connector screw car ries operating current be sure that the screw is turned tight In order to avoid opening the current transformer circuits when changing taps under load connect the spare conn...

Страница 17: ...x cept for the selection of the required 48 125 or 250 voltage on the tapped resistor This connection can be made by referring to Fig 13 I N S T A L LATI O N The relays should be mounted on switchboar...

Страница 18: ...ormal deflection There fore with the stationary contact resting against the backstop the index mark is offset to the right of the 0 mark by approximately 020 The placement of the various time dial pos...

Страница 19: ...ical l y cleaned A contact burnisher tt 18 2A836HO 1 i s recommended for thi s purpo se Th e use o f abrasive material for cl ean ing contacts i s not r ecommended because o f the danger of embedding...

Страница 20: ...1tact circuit when en ergized with 1 2 volts and 4 an1ps current l eading 30 for the 4 to 1 2 amp ere range relays and 1 2 volts and 2 amp s for the 0 5 to 2 5 and 2 to 6 amp ere range rel ays Thi s c...

Страница 21: ...per Tabl e 1 for p erma nent magnet adjustment e g IRV 8 2 tim es tap value and measure the operating time Adjust th e p ermanent magnet keeper until the operating time corresponcls to the value of T...

Страница 22: ...l i ary S w i t c h C S 1 Adjust the stationary core of the switch for a cl earance between the stationary core and the moving 2 2 core when the switch i s picked up This can b e done by turning the r...

Страница 23: ...0 20 20 20 20 OPERATING TIME SECONDS 0 22 14 30 1 19 1 1 1 1 1 1 0 65 0 24 DI RECTIONAL UNI T CALI BRATION Current 50 amps 100 amps Adj ust Magnetic Plugs Ad justment If spurious torque is in the con...

Страница 24: ...S OR CUTOIJT 5 9 25 r ij I r PAIIEL CUTOUT lo DRILLIMG FOR SEMI FLUSII MfQ 2 ____ 1 6 I I I M i 0 PAIIEL DRI LLING OR CUTOUT FOR PRO If CTIOII MTG FROIIT V I EW DI A HOLES FOR 190 32 MTG SCIEWS i II O...

Страница 25: ...ting on the interaction between the SUPERSEDES I L 41 1 33 26 Denotes change from superseded i ssue polarizing circuit flux and the operating circuit flux Mechanically the directional unit is composed...

Страница 26: ...N 1 tt m o 0 o m r Fig 1 Type IRQ Relay without Case Rear View Fig 2 Type IRQ Relay without Case Front View E l e c t r i c a l P a r t M a n u a l s c...

Страница 27: ...cause a contact closing torque The electromagnet for the type IRQ 2 and IRQ 1 1 relays has a main coil consi sting o f a tapped primary winding a secondary winding Two identi cal coils on the outer le...

Страница 28: ...ontact for high spe ed op eration The transformer i s of the saturating type for limiting the energy to the instantaneous overcurrent unit at higher values of fault current and to reduce 4 ID J 1 z 8...

Страница 29: ...1 5 2 0 2 5 4 5 6 8 10 12 REST O F C I RCUIT MillE SAME AS THAT AT CLOSE CS 1 COIITACT LEFT TO TEST OYEICUIREIT ALTERNATIVE COMMECT IOIIS FOR 5 T0 2 5 u PERE flANGE IRQ 5 A ll IRQ 6 RELAYS UIIIT CO T...

Страница 30: ...act assembly has been factory adjusted for low contact bounce performance and should not be changed The time vs current characteristic for the direc tional unit is shown in Fig 6 T r i p C i r c u i t...

Страница 31: ...ordinating time of 0 3 seconds plus circuit break er time is recommended between rel ay being set and the relays with which coordination is to be effected The connector screws on the tap plate above t...

Страница 32: ...oad connect the spare tap screw in the desired po sition before re moving the other tap screw from the ori ginal tap position N egative S e q u e n c e F i l ter 8 No setting i s required lndi eating...

Страница 33: ...d to insure that the relay is in proper working order Negative Sequence F i l ter The filters are adjusted for balance in the factory and no further adjustments or maintenances should be required The...

Страница 34: ...minus 3 3 Time Curve Table 1 shows the time curve calibration points for the various types of relays With the time dial set to the indicated position apply the current specified by Table 1 e g for the...

Страница 35: ...below the knee of the saturation i e use 10L50 or better All contacts should be periodically cleaned A contact burnisher tt 18 2A836H0 1 is recommended for this purpose The use of abrasive material fo...

Страница 36: ...e spring is adjusted by placing a screwdriver or similar tool into one of thB 1 2 notches located on the periphery o f the spring ad juster and rotating it The spring adjuster i s located on the under...

Страница 37: ...t l Oo c and will return to the backstop at tap value current l Oo c 3 Time Curve Calibration Install the perma nent magnet Apply the indicated current per Table 1 for perma nent magnet adjustment e g...

Страница 38: ...A to proper terminal per Fig 14 Block directional unit D contacts close and ener gize trip circuit with rated voltage Contacts of aux iliary switch C 1 should make as indicated by a neon lamp in the...

Страница 39: ...AP VALUE TAP VALUE RANGE TAP AMPERES AMPERES ANGLE CURRENT CURRENT CURRENT CURRENT 0 5 0 91 28 58 4 8 39 6 256 790 0 6 0 96 28 57 4 9 39 8 270 851 0 8 1 18 28 53 5 0 42 7 308 1024 0 5 2 5 1 0 1 37 28...

Страница 40: ...6 2 21 21 6 22 1 23 1 23 5 24 8 26 5 22 4 23 7 25 3 26 4 27 8 30 1 35 6 180 1 10 1 18 126 136 144 162 183 126 143 162 183 204 247 288 270 288 325 360 462 548 630 308 342 381 4 17 448 540 624 376 450 5...

Страница 41: ...SECOND POWER AT VOLT AMPERES AT 3 TIMES AT 10 TIMES AT 20 TIMES AMPERE RATING RATING FACTOR TAP VALUE TAP VALUE TAP VALUE TAP VALUE RANGE TAP AMPERES 0 5 2 5 2 6 4 1 2 0 5 0 6 0 8 1 0 1 5 2 0 2 5 2 0...

Страница 42: ...actor Angle 1 4 66 5 5 32 2 4 92 5 0 100 3 3 30 3 7 27 The voltage burden of the relay with positive sequence voltage applied n o output voltage to the direc tional unit is as follows Pot Transf Acro...

Страница 43: ...GL E VA AT 5 AMPS 39 24 36 13 35 8 5 34 6 0 32 4 6 30 2 9 36 9 0 32 5 0 3 0 3 0 2 8 2 1 26 1 5 2 4 0 93 49 6 5 43 3 3 3 8 2 1 35 1 4 33 1 1 29 0 7 5 1 2 4 45 1 2 40 0 7 3 8 0 6 34 0 37 30 0 24 28 0 43...

Страница 44: ...l i 1 1 1 i I 1 1 I lo r 1 I 1 1 1 1 2 0 t t i D ti tttttt d t i ttb ti tllitl llli l t lli d i tl C J I l l 1 2 3 ij 5 6 7 8 9 10 12 14 16 18 20 MUL T I P L eS OF TAP VALU E CURRENT Curve 418244 Fig...

Страница 45: ...i I 1 i I I I 1 1 l o l 1 0 I 9 a 7 3 TYP I CAL T I ME CURVES TYPE C0 5 OVER CU RREN T RELAY 50 60 CYC L ES I I l i I I I I I I I I I I I I I i II I i I I I 1 I I I I I l i I I I I II I i I I I I I ll...

Страница 46: ...f N 1 1 r f i tF ti 10 l 1 9 t f 8 I 7 rs 1 1 r 1 I t r r _ _ 5 f j j 4 1 3 H t 1 i 1 1 I 1 I I t T 1 j 1 I j_ _ t _ I I I I t I I j 1 1 lo H _ r r f i I I I l f I I P I T I I I fh i 1 i I I 1 i SETT...

Страница 47: ...NT RELAY i 50 60 CYCL ES I I I I I I I I I i T I ME D I AL SETT I N G 1 1 10 I 9 e _ 7 r 1 r I 6 I 5 r ij ll r r r r I L 3 I 1 o 2 3 ll 5 6 7 e 9 10 12 1ll 16 lB 20 MUL T I PL ES Of TAP VAL U E CU RRE...

Страница 48: ...L AY I 0 60 CYCL ES f r I I I I I I I I I I I I T I ME D I AL S ETT I NG 1 l 1 1 IN i 10 1 9 IN I 8 I N 7 1 I _ 6 I N c 5 loo I I I 3 l 2 I iI iiO N 1 0 I r 1 I I no 112 I I I I I 2 3 li 5 6 7 8 9 10...

Страница 49: ...E CURVES TYPE C0 9 OVER CU RRENT RELAY 50 60 CYCL ES I I I I T I ME D I AL S ETT I NG 1 1 10 1 9 1 8 7 6 5 4 I 3 2 1 r r 1 2 _ 2 3 5 6 7 8 9 10 12 14 16 18 20 MULT I PLES OF TAP VALU E CU RREN T Curve...

Страница 50: ...0 02 0 01 1 2 3 II i 6 7 8 9 10 m 1 l _l l 1 1 1 1 U l l I X 1 1 l 1 1 1 1 i r 1 2 3 s 7 9 10 t 20 30 110 t t r r r r r r t I r r 20 30 o 1 1 10 I I 7 2 1 1 IWLTI I LES Of T UUI CUIR 11T 2888655 TYP I...

Страница 51: ...2 _i_ I I 7 2 14 16 s 1 J 8 PAIIEL CUTOUT DR I LLING FOR SEM I FLUSH MTG PANEL DRILLING Oft CUTOUT FOR PROJ ECTI ON I lTG I I _ 01 A ll HOLES FOR 19G 32 MTG SC EWS 3 D U 20 HOLES II OR CUT OUT N Fig...

Страница 52: ...W E S T I N G H O U S E E L E C T R I C C O R P O R A T I O N R E LAY I N STR U M E NT D I VI S I O N N EWAR K N J Printed in U S A w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 53: ...primary winding a secondary winding Two identical coils SU PERSEDES I L 41 l 33L Denotes change from superseded i ss ue o n the outer I e g s o f th e I amination structure are con nected to the main...

Страница 54: ...olarized D irect ional Unit 3 Voltage Polarized Directional Unit 4 Time Over current Unit 5 Indicating Contactor Switch 6 A uxiliary Switch 1 3 Fig 2 Type IRD Relay Without Case Rear View l Varistor 2...

Страница 55: ...onary Contact Pressure Spring 3 Magnetic A djusting Plugs 4 Upper Bearing Screw 5 Moving Contact 6 Spring A djuster Clarnp 7 Current B ias Vane 2 Fig 4 Time Overcurrent Unit 1 Tap B lock 2 Time Dial 3...

Страница 56: ..._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4 Fig 5 Instantaneous Overcurrent Unit 1 Saturating Transformer 2 Tap Block 3 Stationary Contact 4 Moving Contact Fig 6 Indicating Contactor Switch ICS w w w E l...

Страница 57: ...unit is similar in construction to the directional unit The time phase relationship of the two air gap fluxes necessary for the development of torque is achieved by means of a capacitor connected in...

Страница 58: ...lus trate the use of the curves Example 1 Using the formulas and definition of symbols on Fig 1 7 we have L et Ipol 2 amps lop 2 31 Tap Value T 0 5 amp 40 0 For timing unit assume C0 9 with Yz time di...

Страница 59: ...nd this ad justment should not be disturbed WITII IEUTIU IIIUITAIEOUS POUIITY AS liM TME DIIECTIOtiAL lllll lT CIIITACT CLOSES TO Till LffT IATWT II i TIAISfoe ll lED toT DllftTI OIAL UIII T LOW 1 CYL...

Страница 60: ...33 1 1 33 8 1 8 29 0 7 29 4 1 5 51 2 4 51 6 1 7 45 1 2 45 4 16 8 1 8 40 0 7 40 9 1 9 38 0 6 38 12 2 2 34 0 37 34 16 2 5 30 0 24 31 10 1 7 28 0 43 28 15 2 4 21 0 27 21 20 3 1 16 0 20 17 10 40 24 3 6 15...

Страница 61: ...6 0 0 07 0 59 6 6 26 0 1 04 9 9 106 0 4 20 0 1 1 6 10 8 1 2 1 2 472 0 t Thermal capacities for short tim e s other than one second may be calculated on the basis of tim e being inversely proportional...

Страница 62: ...04 38 7 262 800 2 5 4 0 1 10 55 5 13 39 8 280 920 3 0 4 4 1 10 51 5 37 42 8 3 1 2 1008 2 6 3 5 4 8 1 10 47 5 53 42 8 329 1 120 4 0 5 2 1 10 45 5 72 46 0 360 1 2 16 5 0 5 6 1 10 41 5 90 50 3 420 1500...

Страница 63: ...IRC 7 I RP 7 T I M E O V E RC URR E N T U N I T S CONTINUOUS RATING AMPERES 2 2 2 2 5 2 8 3 4 4 0 4 4 8 8 8 9 7 10 4 11 2 12 5 13 7 16 18 8 19 3 20 8 22 5 25 28 ONE SECOND RATlNGt AMPERES 88 88 88 88...

Страница 64: ...OVERCURRENT UNITS VOLT AMPERES tt One Second Power At At 3 Times At 10 Times Rating t Factor Tap Value Tap Value Tap Value Amperes Angle Current Current Current 56 36 0 7 2 6 54 7 1 8 56 34 0 75 6 80...

Страница 65: ...I 1 1 1 2 2 2 I I I 9 8 7 I 6 1 5 _ iji N 3 i TYP I CAL T I ME CURVES TYPE C0 2 OVER CU RREN T RELAY 50 60 CYCL ES I T I ME D I AL SETT I N G 1 1 10 1 1 o o p r r 1 r r Jo T 3 1 5 6 7 8 9 10 12 14 16...

Страница 66: ...0 9 8 7 6 j 3 TYP I CAL T I ME CURVES OVER I l l I I i 1 I I i T IT ll I I I I I 60 I I I T I ME D I l l 1 1 i i l l I i I 1 1 5 TYPE C0 6 CU RREN T RElAY 60 CYCLES I u I II I I I I I I l I i I I I l...

Страница 67: ..._ U 0 z 0 u UJ U 2 1 _ l Ll l_ 1 _l 1 I 1 1 1 I I I N N I t o 1 o r 5 I rt I I 6 7 8 9 10 MULTI PLES O F TAP VALUE CURRENT 12 I I 1 16 18 20 Curve 41846 Fig 12 Typical Time C urve ol the Time Overcurr...

Страница 68: ...RELAY I I I i 0 60 CYCLES 1 I I 1 i I I I 1 1 1 T I ME D I AL SETT I N G 1 1 10 9 1 8 7 6 too 5 I I 3 _ F oo I _ r 2 1 112 I I 2 3 5 6 7 8 9 10 12 1 16 JB 20 MULT I PLES OF TAP VALU E CU RRENT Curve 4...

Страница 69: ...EL AY e0 60 CYCL E I I T I ME D I AL SETT I NG I 11 10 9 8 T 7 6 5 3 I 2 r 1 r 1 2 2 3 5 6 7 8 9 10 12 1ij 16 18 20 MULT I PLES OF TAP V AL U E CURRENT Curve 418248 Fig 14 Typ ic ol Tim e Curve of th...

Страница 70: ...RENT RELAY 50 60 CYCL ES I I i T I ME O I AL SfTT I NG 1 1 10 9 7 8 6 5 4 3 2 lo 1 r I 1 2 2 6 7 8 9 10 12 11J 16 18 20 MU LT I P L ES O F TAP VALUE CU RREN T Curve 418249 Fig 15 Typical Time Curve of...

Страница 71: ...l l I l 1 1 l 2 1 l 1 l 1 1 1 l 1 1 i 3 II i I 7 8 9 10 1 1 r r l I I MIILTI I LES Of T VAlli C li WIT 20 30 110 r 1 C 1 r I r 1 I I r r r _ 1 1 10 9 I 7 i 2 1 2 2888655 TYP I CAL T I E CURVES TYPE C...

Страница 72: ...S OF PRODUCT PICKUP EpoL POLARIZ ING VOLTAGE IpQL POLARIZING CURRENT Iop OPERATING CURRENT 9 ANGLE BY WHICH Io LAGS EP CI ANGLE BY WHICH I0 LlAOSi p DIVIDE BY 4 FOR 4 1 2 AUP RANGE DIVIDE BY I FOR 4 1...

Страница 73: ...2 amperes with the current lagging voltage by 60 For the directional units used with the 4 to 12 amp ere range time overcurrent units the minimum pick up is 1 ampere for the current polarized dtrec t...

Страница 74: ...cuit the voltage polarizing circuit at the terminals of the relay 22 A D J U S T M E N T S A N D M A I N T E N A N C E The proper adjustments to insure correct operation of this relay have been made a...

Страница 75: ...the time overcurrent unit POS 67N Tcf I ST S E C c c_s_ ___ _ co DEVICE NUMBER CHART 67N DlRECTIONAL OVERCURRENT GROUND RELAY TYPE IRP D DIRECTIONAL UNIT CO TIME OVERCURRENT UNIT t INSTANTANEOUS 0 C...

Страница 76: ...S 1 67N 10 I S 1 1S CO I cs cs T I 5 2 o 67N 1 ST S E C C S 1 C0 NE G ___ __ __ __ __ __ ____ 289B508 Fig 2 1 External Schematic of the IRD Relay for Ground Fault Protection S T A T I O N BUS DE CE NU...

Страница 77: ...contact C al i bration use the following procedure for calibrating the relay if the relay has been tak en apart for rep airs or the adjustments have been disturbed This procedure should not be used u...

Страница 78: ...lzeci relays IRC and IRD current polarized unit are open circuited Upon completion of either a or b current is applied to the operating circuit terminals as per 26 Table 2 Plug adjustment is then mad...

Страница 79: ...rew Back off the core screw approximately one turn and lock in place This prevents the moving core from striking and sticking to the stationary core because of residual magnetism Adjust the contact cl...

Страница 80: ...ng Direction Then the plug is screwed in Until Spuri ous Torque is Reversed t Short circuit the voltage polarizing circuit at the relay terminals before making the above adjustment TAB LE I l l T I M...

Страница 81: ...__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ I L 4 1 1 3 3M B r Ill S I S 1 R c B A I _ _ A t Pt O P G L t ft ne K D __ d VP 1 Il C c A L J A r 1 b Fig 24 Test Connections 29 w w w E l e c t...

Страница 82: ..._ TOOTHED Uf __ LOWIASHER PANEL S PACERS FOR I 2 s i _J PANEL CUTOUT DR I LL I NG FOR SEMI FLUSH MTG PANEL DR I LL I NG OR CUTOijT FOR PROJECT I ON MTG FROitT Y I EW Fig 25 Outline and Drilling Plan f...

Страница 83: ...IIEL USi 1 32 STUD 1 r _ tftrrrrBm J D I A D I A 10 HOLES 611 OR CUT OUT TEIIMI UL AIID MOUNTI NG DETAI LS 9 16 h ta I 1 s s en PAIIEL CUTOUT I DRI LL I NG FOR SEMI FLUSH MTG PAIIEL OR I LLI IQ OR CUT...

Страница 84: ...W E S T I N G H O U S E E L E C T R I C C O R P O R A T I O N R E LAY I N STR U M E NT D I V I S I O N N EWA R K N J Printed in U S A w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 85: ...d by the el ectromagnet result in out of ohase fl uxes in the air gap The out of phase air gao fl uxes oroducerl cause a contact closing torque SU PERSEDES I L 4 1 133M dated A ug ust 1 974 Denotes ch...

Страница 86: ...Polarized D irect ional Unit 3 Voltage Polarized Directional Unit 4 Time Over current Unit 5 Indicating Contactor Switch 6 A uxiliary Switch 1 3 Fig 2 Type IRD Relay Without Case Rear View 1 Varistor...

Страница 87: ...essure Spring 3 Magnetic A djusting Plugs 4 Upper Bearing Screw 5 Moving Contact 6 Spring A djuster Clarnp 7 C urrent B ias Vane 2 7 F ig 4 Time Overcurrent Unit l Tap B lock 2 Time D ial 3 Control Sp...

Страница 88: ..._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Fig 5 Instantaneous Overcurrent Unit 1 Saturating Transformer 2 Tap B lock 3 Stationary Contact 4 Moving Contact T Fig 6 Indicating Contactor Switch ICS 4 w w w E...

Страница 89: ...nstantaneous overcurrent unit is similar in construction to the directional unit The time phase relationship of the two air gap fluxes neces sary for the development of torque is achieved by means of...

Страница 90: ...trate the use of the curves Example 1 Using the formulas and definition of symbols on Fig 1 7 we have L et Ipol 2 amps Iop 2 3 1 Tap Value T 0 5 amp 40 0 For timing unit assume C0 9 with Y z time dial...

Страница 91: ...WE IIIUIITAIEOUS OLAI ITY AS IMM HIE DIIECTIIMIU llaiT COITACT CLOSES TO TilE LifT IUTUTAif OIII OWUCUUEJT WilT U U CYLIIMI Ill I T SATUUTIIi TU ISFOI I lED DOT OllftTIIIIAL IHI I T L OW 1 CYLIJIOU UI...

Страница 92: ...5 8 8 10 10 10 P F ANGL E 39 36 35 34 32 30 36 3 2 3 0 28 26 24 49 43 38 35 33 29 5 1 45 40 38 34 30 28 21 16 15 12 11 3 1 24 20 18 16 15 t t 1 VA AT 5 AMPS P F ANGLE 24 46 13 37 8 5 34 6 0 32 4 6 3...

Страница 93: ...04 9 9 1 0 6 0 4 20 0 1 1 6 1 0 8 1 2 1 2 472 0 t T h e rrn al capaciti e s fo r short tim e s o th er than one s e c ond m ay be cal culated on the basis o f tim e b einy in v e rs ely proportional t...

Страница 94: ...9 5 04 38 7 262 800 2 5 4 0 1 10 55 5 13 39 8 280 920 3 0 4 4 ao 51 5 37 42 8 312 1008 2 6 3 5 4 8 1 10 47 5 53 42 8 329 1 120 4 0 5 2 1 10 45 5 72 46 0 360 1216 5 0 5 6 1 10 41 5 90 50 3 420 1500 6 0...

Страница 95: ...462 548 630 308 342 381 417 448 540 624 376 450 531 6 l l 699 880 1056 CONTINUOUS ONE SECOND RATING RATINGt POWER AT AT 10 TIMES AT 20 TIMES TAP VALUE TAP VALUE RANGE TAP AMPERES AMPERES FACTOR TAP V...

Страница 96: ...Tap Value Tap V alue T ap V alue Range Tap Amperes Amperes Angle Current Current Current Current 0 5 1 7 5 6 36 0 7 2 6 54 7 1 8 250 0 6 1 9 5 6 3 4 0 7 5 6 80 75 0 267 0 8 2 2 5 6 3 0 0 8 1 7 46 84 0...

Страница 97: ...4 0VER CU R R ENT R E LAY H r 1 l l 1 r 1 cr t t t t t h tl t tt 1 t i r H r t 50 60 H E RTZ 60 1 SEC t 1 t t t t I r 4 H t H 4 4 4 4 1 1 t t 1 r H 1 t t t f t ri t t t HI t l ooi 1 t t 1o d 1 2 I t I...

Страница 98: ...I i I I I I TYPI CA L TI M E CU R V ES TYPE C0 5 OVER CU R R ENT R E LAY 50 60 H ERTZ I I I I I i i i i i I I l l I II I i I i I I 1 i i I I I I I I I I i I I I I I I I i I i i r I I I I i I I I I I...

Страница 99: ...I i 1 1 I I I I 1 1 I N 1o l i I h 5 9 A 8 X 1 7 I r b 5 h T 3 n 2 I I r f 1 _ __ t 1 I I 1 t 1 W l Jtil w i 1 oj o 11 j j t J r _ I TYPI CA L T I M E CU R V ES TYPE C0 6 O V E R CU R R ENT R E LAY I...

Страница 100: ...C0 7 I OVE R C U R R ENT R E LAY I 50 60 H ERTZ I I r t r I r r i I _A I I i I I I I I I Ll T I ME D I AL SETT I N G I 1 1 1 IN 10 N 9 8 I 7 r I 1 o 6 r I r 5 r r r l L 3 1 2 r 3 5 6 7 8 9 10 12 1 16...

Страница 101: ...I TYPE C0 8 OVER CU R R E NT R E LAY I I 1 1 4 4t 50 60 H ERTZ t I I t i t 1 1 1 r H t f l r __ f 1 t T I ME D I AL S ETT I NG t 1 1 r 7 IV to r t N r X 1 r r t 1 4 t i t _ ___ J t 3 _ _ 1 t I X l r...

Страница 102: ...H tH HTH H OVER CU R R ENT R E LAY r r I f r 1 t l 1 11 2 50 60 H E RTZ I I I I I I I I I I I I I I I I I I I I 1 I I I I I fu I I i I I I I t i f I I I I 3 6 7 8 9 10 12 114 16 18 20 MULT I PLES OF T...

Страница 103: ..._1_ I 2 1 1 3 6 7 8 9 10 m l l I 1 1 2 1 1 l 1 1 i _ 3 II 6 7 8 9 10 r r r r r r MIILTI I LES Of Til VAlli CIIIIEIIT 20 30 110 r r I 20 30 llO 1 1 10 9 I 7 s l 2 1 2 2888655 TYPI CA L T I M E CU R V...

Страница 104: ...OF PRODUCT PICKUP EpoL POLARIZ ING VOLTAGE IpQL POLARIZING CURRENT lop OPERATING CURRENT 8 ANGLE BY WHICH Io LAGS EP Cf ANGLE BY WI11CH Io LlADS Ip DIVIDE BY 4 FO R 4 12 AMP RANGE Q DIVIDE BY I FOR 4...

Страница 105: ...and 2 amperes with the current lagging voltage by 60 For the directional units used with the 4 to 12 ampere range time overcurrent units the minimum pick up is 1 ampere for the current polarized dtrec...

Страница 106: ...Prnal a c con n ecti o n s u f the directi o n al o Y ercl rrent rel ay s arr shown i n Figs 20 2 1 and 2 2 I f n o voltage polarizing source i s t o b e connected t o the IRD relay short circuit t h...

Страница 107: ...D E V t C E NUMBEk C H A R T 6 7 N DIRECTIQNAL OVERCURRENT G R OUND REL A Y TYPE f RP o lJIRECT I O N A L UNIT C O t iME OVE R CURRENT UNIT l fNSTANTANEOUS 0 C UNIT l iS T SATU R A T I N G T RANSFORME...

Страница 108: ...E A U X p T Pos 6 7N TO Fig 21 External Schematic of the IRD Relay for Ground Fault Protection 1 s c a c s__ __ __ _ __ __ __ __ ___ A 8 A 8 C L I N E D E V I C E N U M B E R H A R T I P O L A R I Z I...

Страница 109: ...e contact C a l i bration use the following procedure for calibrating the relay if the relay has been tak en apart for repairs or the adjustments have been disturbed This procedure should not be used...

Страница 110: ...ized relays IRC and IRD current polarized unit are open circuited Upon completion of either a or b current is applied to the operating circuit terminals as per 26 Table 2 Plug adjustment is then made...

Страница 111: ...screw Back off the core screw approximately one turn and lock in place This prevents the moving core from striking and sticking to the stationary core because of residual magnetism Adjust the contact...

Страница 112: ...n Contact Closing Direction Then the plug is screwed in Until Spuri ous Torque is Reversed t Short circuit the voltage polarizing circuit at the relay terminals before making the above adjustment TABL...

Страница 113: ...IRP IRC AND IRD RELAYS _ L_ 4_ _ 1 13 3N A 8 c v I PHASE SH I FTER c A I 8 6 6 PHASE ANGLE D METER o _ 4 VARIAC J J J J a b Fig 24 Test Connections 29 w w w E l e c t r i c a l P a r t M a n u a l s...

Страница 114: ...3 SEM I FLUSH MTG PROJECT I O N MTG TERMINAL AND MOUNTING DETAILS 250 DIA 4 HOLES FOR 6 351 190 32 MTG SCREWS PAN E L C UTO U T 8 DRI LLING FOR S E M I FLUSH MTG 1 0 25 4 2 0 50 8 57 D 7902 Fig 25 Out...

Страница 115: ...250 i 489 00 1 j_ 1 375 161 93 2 781 70 64 f 8 938 227 01 250 DIA 4 HOLES FOR 6 351 190 32 MTG SCREWS 9 250 235 00 2 938 74 63 18 500 496 9 57 D 7904_ Fig 26 Outline and Drilling Plan for the IRD Rel...

Страница 116: ...W E S T I N G H O U S E E L E C T R I C C O R P O R A T I O N R E LAY I N STR U M E N T D I VI S I O N N EWAR K N J Printed i n U S A w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 117: ...r in con struction to the 0 2 2 0 ampere res except that the main coi l i s not tapped TRIP CI RCUIT CONSTANTS 1 amp ICS 0 1 Ohms de re s i s tance THERMAL CAPACI TY Ampere 1 second 1 4 0 Rating Coi l...

Страница 118: ...w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 119: ...f phase air gap fluxes produced cause a contact closing torque SU PERSEDES I L 4 1 1 33 3C Denotes change from superseded i ssue I ndicating Contactor Sw itch U n its I C S 1 and I C S T The d e indic...

Страница 120: ...Rectifier 0 03 MFD Capacitor D Unit CSl Unit ICS I CO Unit ICS T Fig 1 Type IRV Relay Without Case Front View Fig 2 Type IRV Relay Without Case Rear View 1 23 MFD co Unit t m a a m r E l e c t r i c...

Страница 121: ...ing resulting in one time curve throughout the range of the relay Across the secondary is connected a non linear resistor known as a varistor The effect of the varis tor is to reduce the voltage peaks...

Страница 122: ...to trip a circuit breaker The indicating contactor switch has two taps that provide a pickup setting of 0 2 or 2 amperes To change taps requires connecting the l ead located in front of the tap block...

Страница 123: ...33 1 1 33 8 1 8 29 0 7 29 4 1 5 51 2 4 5 1 6 1 7 45 1 2 45 4 16 8 1 8 40 0 7 40 9 1 9 38 0 6 38 12 2 2 34 0 37 34 16 2 5 30 0 24 3 1 10 1 7 28 0 43 28 15 2 4 21 0 27 21 20 3 1 1 6 0 20 17 10 40 24 3...

Страница 124: ...848 1020 1 1 28 1260 1408 1720 2064 IRV 5 I RV 6 TI ME OVERCURRENT UNI TS AMPERE RAl lE TAP 0 5 0 6 0 8 0 5 2 5 1 0 1 5 2 0 2 5 2 2 5 3 2 6 3 5 4 5 6 4 5 6 4 12 7 8 10 12 CONTINuOUS RA l1NG AMPERES 2...

Страница 125: ...2 640 306 342 366 413 448 530 624 392 460 540 626 688 860 1032 CONTINUOUS ONE SECOND POWER AT AT 3 TIMES AT 10 TIMES AT 20 TIMES AMPERE RATlNG RANGE TAP AMPERES 0 5 2 7 0 6 3 1 0 8 3 7 0 5 2 5 1 0 4 2...

Страница 126: ...9 131 6 600 12 0 26 460 16 1 8 16 3 180 0 120 t Thermal capacities for short times other than one second may be calculated on the basis of time being inversely proportional to the square of the curren...

Страница 127: ...YP I CAL T I ME CU RVES TYPE C0 2 OVER CURRENT RELAY 1 50 60 CYCL ES SEC i 1 T I ME D I AL SETT I N G I I 1 1 10 1 I 9 8 7 1 6 r r 1 5 f ij 1 3 r roo 1 r 2 1 r 1 f o 1 2 2 3 5 6 7 8 9 10 12 14 16 18 2...

Страница 128: ...CURRENT R ELAY 50 60 CYCLES ll_ l1 1 I I ll I I 1 1 l I _ 1 _ L j _ l l _ _ _ l l 1 l i _ _ l I 1 I I 1 1 I l l T I ME D I AL S ETT I NG 1 1 1 1 1 I 1 0 9 8 1 7 1 1 6 5 r r 3 2 lo 1 1 1 2 2 3 5 6 7 8...

Страница 129: ...U i r Hi 2 _ 1 1 1 I j 1 r r r i I I t i t t r 1 2 I I I t tt fffi t l It I H t JH t 1 I r I I TYP I CAL T I ME CU RVES TYPE C0 6 I OVER CURRENT RELAY I 60 60 CYCL ES I I I I I I I I I I I SETT I NG...

Страница 130: ...I OVER CURRENT RELAY I I I IT 0 60 CYC L ES I 1 1 I 1 I 1 1 T I ME D I AL SETT I N G 1 1 10 9 8 lo 7 r r 1 o 6 l oo t 5 1 o 1 r 3 I _ I 2 r 1 t 1 2 2 3 5 6 7 8 9 10 12 1 16 lB 20 MULT I PLES OF TAP V...

Страница 131: ...I CAL T I ME CURVES TYPE co a OVER CURRENT R ELAY 50 60 CYCL ES I I I I T I ME D I AL SETT I NG u 10 1 9 I I 8 7 I I 6 5 I I 3 2 1 o 1 1 2 2 3 5 6 7 8 9 10 12 1 16 18 20 MULT I P L ES OF TAP V AL U E...

Страница 132: ...R CURRENT RELAY 50 60 CYCLES 1 T I ME D I AL SETT I NG 1 1 10 i 9 8 7 6 ti 14 3 2 loo 1 iii r _ 1 2 I 2 3 6 7 8 9 10 12 111 16 18 20 MULT I PLES OF TAP VALUE CURRENT Curve 418249 Fig 9 Typical Time Cu...

Страница 133: ...05 o o 0 03 0 02 0 01 1 2 B l 1 1 v l 1 l 1 s 1 1 J 16 i 1 7 8 9 10 U W l 1 L l l 1 l r 1 t 1 I I 1 2 3 II S I 7 I 9 10 r 1 I MIILTI LES Of Tl VAUI CUIIEJIT 20 tO 0 r r r r 11 10 9 I 7 5 l 2 1 2 28886...

Страница 134: ...current curves C A U T I O N Since the tap block connector screw car ries operating current be sure that the screw is turned tight In order to avoid opening the current transformer circuits when chang...

Страница 135: ...the selection of the required 48 125 or 250 voltage on the tapped resistor This connection can be made by referring to Fig 13 I N ST A L L A T I O N The relays should be mounted on switchboard panels...

Страница 136: ...lf of its normal deflection There fore with the stationary contact resting against the backstop the index mark is offset to the right of the 0 mark by approximately 020 The placement of the various ti...

Страница 137: ...t transformers should be work ed well below the knee of the saturation i e use 10L50 or better All contacts shoul d be periodically cleaned A contact burnisher tt 182A836HO 1 is recomm ended for thi s...

Страница 138: ...volts and 4 amps current leading 30 for the 4 to 1 2 ampere range relays and 1 2 volts and 2 amps for the 0 5 to 2 5 and 2 to 6 ampere range relays This can be done approximately using current in phas...

Страница 139: ...he 1 30 times tap value operating time from the number 6 time dial position is 54 9 5 seconds It is important that the 1 30 times tap value current be maintained accurate ly The maintaining of thi s c...

Страница 140: ...core and the moving core when the switch is picked up This can be done by turning the relay upside down Then screw up the 22 core screw until the moving core starts rotating Now back off the core scr...

Страница 141: ...tic Plugs Adjustment Rotate core by means of adjuster located on bottom side of cylinder unit Adjust core so that a slight contact opening torque is made Recheck at 15 and 5 amps to see there is no cl...

Страница 142: ...RI LLING OR CUTOUT FOR PRO If CTIOII MTG FROIIT VIEW D I A HOLES FOR 190 32 MT8 SCREWS I I DU 2 NOLES TE114111AL IIUMBER 57 D 7902 Fig 7 6 Outline and Drilling Plan for the Type IRV Relay in the Type...

Страница 143: ...ing on the interaction between the SUPERSEDES I L 41 1 33 2A Denotes change from superseded i ssue polarizing circuit flux and the operating circuit flux Mechanically the directional unit is composed...

Страница 144: ...N Fig 1 Type IRQ Relay without Case Rear View j Fig 2 Type IRQ Relay without Case Front View t tl m 0 0 0 m E l e c t r i c a l P a r t M a n u a l s c...

Страница 145: ...ntact closing torque The electromagnet for the type IRQ 2 and IRQ 1 1 relays has a main coil consisting o f a tapped primary winding a secondary winding Two identi cal coil s on the outer legs of the...

Страница 146: ...t for high speed op eration The transformer is of the saturating type for limiting the energy to the instantaneous overcurrent unit at higher values of fault current and to reduce 4 ID 1 z 8 7 0 6 1 z...

Страница 147: ...7 1 5 2 0 2 5 4 5 6 8 10 12 REST OF C I RCUIT MOTE SAME 1 TIIAT AT CLOSE CS 1 COitTACTS lEFT TO TEST OYEICUIIEIT ALTERIU TJVE CONNECTI O S FOR 5 T0 2 S uti ERE U IIGE I RJI 5 AND I Q 6 RH I YS I Ult T...

Страница 148: ...s will safely clo se 3 0 amperes at 250 volts d c and the seal in contacts of the indi cating contactor switches will safely carry this cur rent long enough to trip a circuit breaker The indicating co...

Страница 149: ...The connector screws on the tap plate above the time dial makes connections to various turns on the operating coil By placing this screw in the various tap plate holes the relay will just close its c...

Страница 150: ...when changing taps under load connect the spare tap screw in the desired position before re moving the other tap screw from the original tap position N egative Sequence F i l ter 8 No setting is requi...

Страница 151: ...be required A c c e ptance Check The following check is recommended to insure that the relay is in proper working order N egative Sequence F i l te r The filters are adjusted for balance i n the facto...

Страница 152: ...equal tho se of Table 1 plus or minus 5 p ercent For type IRQ 1 1 relay only the 1 30 times tap value operating time from the number 6 time dial position in 54 9 5o c seconds It is important that the...

Страница 153: ...rmers should be worked well below the knee of the saturation i e use 10L50 or better All contacts should be periodically cleaned A contact burnisher i t 18 2A836HO 1 is recommended for this purpo se T...

Страница 154: ...r or similar tool into one of tha 1 2 notches located on the periphery o f the spring ad juster and rotating it The spring adjuster i s located on the underside of the bridge and is held in place by a...

Страница 155: ...will return to the backstop at tap value current l Oo c 3 Time Curve Calibration Install the perma nent magnet Apply the indicated current per Table 1 for perma nent magnet adjustment e g IRQ 8 2 time...

Страница 156: ...proper terminal p er Fig 14 Block directional unit D contacts close and ener gize trip circuit with rated voltage Contacts of aux iliary switch C 1 should mak e as indicated by a neon l amp in the co...

Страница 157: ...AP VALUE TAP VALUE TAP VALUE RANGE TAP AMPERES AMPERES ANGLE CURRENT CURRENT CURRENT CURRENT 0 5 0 91 28 58 4 8 39 6 256 790 0 6 0 96 28 57 4 9 39 8 270 851 0 8 1 18 28 53 5 0 42 7 308 1024 0 5 2 5 1...

Страница 158: ...1 247 47 4 92 35 6 288 270 288 325 360 462 548 630 308 342 381 417 448 540 624 376 450 53 1 611 699 880 1056 IRQ 7 TIME OVERCURRENT UN ITS CONTINUOUS ONE SECOND RATING RATING AMPERES AMPERES 2 2 2 2...

Страница 159: ...OVERCU R R EN T UNITS CONTINUOUS ONE SECOND POWER AT AMPERE RATING RATING FACTOR TAP VALUE RANGE TAP AMPERES AMPERES ANGLE CURRENT 0 5 1 7 56 36 0 72 0 6 1 9 56 34 0 75 0 8 2 2 56 30 0 81 0 5 2 5 1 0...

Страница 160: ...or Angle 1 4 66 5 5 3 2 2 4 92 5 0 100 3 3 30 3 7 27 The voltage burden of the relay with positive sequence voltage applied n o output voltage to the direc tional unit is as follows Pot Transf Across...

Страница 161: ...ING AMPERES 39 24 36 13 35 8 5 34 6 0 32 4 6 3 0 2 9 3 6 9 0 3 2 5 0 3 0 3 0 2 8 2 1 26 1 5 24 0 93 49 6 5 43 3 3 38 2 1 35 1 4 33 1 1 29 0 7 5 1 2 4 45 1 2 40 0 7 3 8 0 6 34 0 37 30 0 24 28 0 43 2 1...

Страница 162: ...I I I I T I i I I l 1 I 1 I I 1 1 i r I I T I I r 1 l I lf t t 1 L 1 f 1 1 1 iil T N f T I ME DIAL SETTING N T 1 _ 1 1 l J I 1 0 I 1li 10 I 9 i il J 8 I rN N I r 7 I N I INo 1 I i N 6 I N I r T 1 l N...

Страница 163: ...0 9 8 TYP I CAL T I ME CURVES TYPE C0 5 OVER CU RRENT RElAY 50 60 II i II I 1111 II I I II IIII I i I I i I I I 1 1 I l I i I I I I I i I I I I I l l T I ME J I Noo l l II il I I II I I I u I D I AL...

Страница 164: ...I I N I I T I ME D I AL SETT I NG r t t t J I Ji l l lrr 1 1 I I N I _ I I 10 I I 9cH 1 1 r to 8 7 1 of 6 1 N 1 l Kf t fltt k 4 _ Lt 3 11 1 1 l I t I I I I I n lo oi I I I I r r t i It tr t _ I I I I...

Страница 165: ...7 o l OVER CU RRENT RELAY I I I I 50 60 CYCL ES I I I 1 I 1 1 I I I I I I I I 1 T I M E D I AL SETT I N G 1 1 1 1 10 9 1 8 lo 7 1 6 1 _ 5 r 1 r r r f o 3 L _ 2 1 _ 1 2 I I 2 3 5 6 7 8 9 10 12 1 16 1B...

Страница 166: ...3 TYP I OAL T I ME CURVES I TYPE co a OVER CURRENT R ELAY I I I I I 1 I I I I I I T I ME 1J l lol I N _ I I I 0 60 CYCL ES I I I i I D I AL SETT I NG i i N 1 r to I I I I iii _ to t 3 lt 5 6 7 8 9 10...

Страница 167: ...CURVES TYPE C0 9 OVER CURRENT RELAY 50 60 CYCLES l T I ME D I AL S ETT I NG 1 1 1 10 1 9 8 7 6 5 3 I 2 1 l ooo _ r 1 2 2 3 6 7 8 9 10 12 1 16 18 20 MULT I PLES OF TAP VALUE CU RREN T Curve 418249 Fig...

Страница 168: ...1 l rv l 1 1 l l 1 1 1 L l l 1 1 l 1 1 l l L 1 1 1 l 1 1 1 1 1 1 1 I I I 1 1 l 1 l l I I r I l l r I 1 r I I 1 a 3 s a 1 a 9 10 I MiiLTI P LES Of Till VALli CU IEIIT 20 30 0 I l I I I I r t r r j r r...

Страница 169: ...8 STUD 16 1 190 32 SC EW rj 1 111 I D I A i e TE I NAL AIIO MOUIITIIIG DETAI LS l__ TEIIMIIIAL IIIJ48EII 5 J 2 r l6 I DI A q HOLES FOil 2 19G 32 NTG SC EWS 3 h i N r f t t I _ I _ i I I L I I I I l r...

Страница 170: ...W E S T I N G H O U S E E L E C T R I C C O R P O R A T I O N R E LAY I N STR U M E N T D I VI S I O N N EWAR K N J Printed in U S A w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 171: ...f a tapped primary winding a secondary winding Two identical coils SUPERSEDES I L 41 1 33E Denotes change from superseded i ssue on the outer l egs of the lamination structure are con nected to the ma...

Страница 172: ...Polarized Direct ional Unit 3 Voltage Polarized Directional Unit 4 Time Over current Unit 5 Indicating Contactor Switch 6 A uxiliary Switch 1 3 Fig 2 Type IRD Relay Without Case Rear View 1 Varistor 2...

Страница 173: ...nary Contact Pressure Spring 3 Magnetic A djusting Plugs 4 Upper Bearing Screw 5 Moving Contact 6 Spring A djuster Clarnp 7 Current B ias Vane 2 Fig 4 T ime Overcurrent Unit l Tap B lock 2 Time Dial 3...

Страница 174: ..._ __ __ __ __ __ __ __ __ __ __ __ __ ___ _ __ ___ Fig 5 Instantaneous Overcurrent Unit 1 Saturating Transformer 2 Tap Block 3 Stationary Contact 4 Moving Contact Fig 6 Indicating Contactor Switch ICS...

Страница 175: ...The instantaneous overcurrent unit is similar in construction to the directional unit The time phase relationship of the two air gap fluxes necessary for the development of torque is achieved by mean...

Страница 176: ...AS SMM TilE OIIECTIQIAL ua I T COIITACT CLOSES TO TillE LEFT IISTAITAIIEOWS OVEICUU 1H UI I T WI f El CYLIID 1 IalT SATUIATIIi TUISFOIIIU lED DOT DIIECTIQIAL IHiil LOWU CYLUIOEI UIIT C ASJI S OPUUU S...

Страница 177: ...8 2 8 8 4 16 10 10 40 10 20 80 10 cp t t P F ANGLE VA AT 5 AMPS P F ANGLE 39 24 46 36 13 37 35 8 5 34 34 6 0 32 32 4 6 3 1 30 2 9 28 36 9 0 36 3 2 5 0 3 2 3 0 3 0 29 28 2 1 27 26 1 5 2 6 24 0 93 24 49...

Страница 178: ...2 12 280 32 4 1 16 10 8 121 2 472 0 Degrees current lags voltage at tap value current t Thermal capacities for short times other than one second may be calculated on the basis of time being inversely...

Страница 179: ...10 59 5 04 38 7 262 800 2 5 4 0 1 10 55 5 13 39 8 280 920 3 0 4 4 1 10 5 1 5 37 42 8 312 1008 2 6 3 5 4 8 1 10 47 5 53 42 8 329 1 120 4 0 5 2 1 10 45 5 72 46 0 360 1 2 16 5 0 5 6 1 10 41 5 90 50 3 42...

Страница 180: ...880 1056 I R D 7 I R C 7 I RP 7 T I M E O V E R C UR R EN T U N I T S CONTINUOUS ONE SECOND POWER AT AMPERE RATING RATlNGt FACTOR TAP VALUE RANGE TAP AMPERES AMPERES ANGLE CURRENT 0 5 2 5 2 6 4 12 0...

Страница 181: ...URRENT 350 365 400 440 530 675 800 360 395 430 470 500 580 660 420 480 550 620 700 850 1020 RANGE TAP CONTINUOUS RATING MPERES AMPERES ANGLE CURRENT AT 3 TIMES TAP VALUE CURRENT AT 10 TIMES TAP VALUE...

Страница 182: ...ME CU RVES TYPE C0 2 OVER CURREN T RELAY 50 60 CYCL ES SEC I I I 1 T I ME D I AL SETT I N G 1 1 I 10 1 1 9 8 7 1 6 r r 5 I r 1 4 3 r 2 r 1 r 1 2 2 3 1 4 5 6 7 8 9 10 12 14 16 18 20 MUL T I PL S O F TA...

Страница 183: ...3 2 1 1 2 I 2 I I I i I 1 i 1 0 i 9 8 7 6 5 too 14 TYP I CAL T l ME CURVES TYPE C0 5 OVER CU RREN T RELAY 50 60 CYC L ES I I II i I I T I ME I 1 1 1 lol 1 5 t II I 0 1 I I I I I I I I I Al SETT I NG...

Страница 184: ...ooo H I Ht T 1 ME 0 I AL SETT I NG f l 1 lO H H l j st r F 9 1 I 2 r t H rl rl f 11 t 1 j 1 oi I 8 _ 4 4 7 f 4o 1 rt f N c l f F 6 _ I i oo r t t t t f t H ot l r I 1 1 t 11 1 t 5 1 1 _ r t_ l t 1 t...

Страница 185: ...RENT RELAY i 1 I t 50 60 CYCLES I I I I 1 I l l 1 T I ME D I AL SETT I NG 1 1 1 10 9 c 8 1 7 r o 6 r o 5 r r 1 o _ __ 3 _ __ r r i lo 2 1 1 112 2 3 5 6 7 8 9 10 12 1 16 lB 20 MUL T I PL ES OF TAP VALU...

Страница 186: ...I 1 1 10 9 8 7 6 l 5 t 3 I TYP I CAL T I ME CURVES TYPE co a OVER CUR REN T RELAY I I I I I T I ME T I I I 0 60 CYCl ES I D I AL SETT I NG I fi O o I r 3 lt 5 6 7 8 9 10 12 11 16 18 20 MUL T I PLES Of...

Страница 187: ...ES TYPE C0 9 OVER CURRENT RELAY 50 60 CYCL ES 1 1 T I ME D I AL S ETT I NG 1 1 10 I I 9 8 7 6 1 5 3 2 1 r r 1 2 2 3 5 6 7 8 9 10 12 111 16 18 20 MULT I PLES OF TAP VALUE CURRENT Curve 418249 Fig 15 Ty...

Страница 188: ...1 1 y 1 1 1 1 1 l 1 1 fl 1 I 1 1 1 1 1 I I r 1 1 l 1 L l l 1 I 1 t f 2 3 fl 6 7 I 9 10 I I 20 30 0 f 1 f f f l to r 1 1 r 1 I 1 r 20 30 0 1 1 10 i 7 s 3 2 1 2 MULTI P LES OF TAr YWI C UIII 11T 288865...

Страница 189: ...stantaneous Circuit When Directional Unit is Voltage Polarized 10 t n rn rr ffi t ffi1f t i _ I tL TYPICAL TIME CURVES Iff OF CURRENT POLARIZED DIRECTIONAL OVERCURRENT RELAY 20 30 40 50 Curve 471060 A...

Страница 190: ...volt and 2 amperes with the current lagging voltage by 60 For the directional units used with the 4 to 12 ampere range time overcurrent units the minimum pick up is 1 ampere for the current polarized...

Страница 191: ...voltage polarizing circuit at the terminals of the relay I L 4 1 1 33 F A DJ U S T M E N T S A N D M A I N T E N A N C E The proper adjustments to insure correct operation of this relay have b een ma...

Страница 192: ...ent unit pos DEVICE NUMBER CHART 67N OIRECTIONAL OVERCURRENT GROUND RELAY TYPE IRP D DIRECTIONAL UNIT tO T IME OVERCURRENT UNIT 1 INSTANTANEOUS 0 C UNIT liST SATURATING TRANSFORMER FOR INST 0 C UNIT I...

Страница 193: ...D CURRENT SOURCE Q I S 4 I S CO I qs t67N 2 52 a 67N 3 I ST S E C CS 1 _____ C D NEG 289B508 Fig 21 External Schematic of the IRD Relay for Ground Fault Protection STATION BUS 67N 8 RELAYS co D liST 6...

Страница 194: ...following procedure for calibrating the 24 relay if the relay has been taken apart for repairs or the adjustments have been disturbed This procedure should not be used unle ss it is apparent that the...

Страница 195: ...circuits of the current polar ized relays IRC and IRD current polarized unit are open circuited Upon completion of either a or b current is applied to the operating circuit terminals as per Table 2 Pl...

Страница 196: ...cked up This can be done by turning the relay upside down Then screw up the core screw until the moving core starts rotating Now back off the core screw until the moving core stops rotating This indic...

Страница 197: ...act Closing Direction Then the plug is screwed in Until Spuri ous Torque is Reversed t Short circuit the voltage polarizing circuit at the relay terminals before making the above adjustment TABLE I l...

Страница 198: ...CREW FOR T H I C K P WlO L US 190 32 STUO OIA T RMI o IAL AW D ME Ut TI NCJ DElAI L OIA 4 0LES f OR 190 32 MT DCR f WS PANEL c UTO lT t ORILLINGr FOR SEMI FLU CQH MT i P _NEL DRI LL 1 G OR C JTOU T PR...

Страница 199: ...S I O N S I N I N C H E S I DI A H o L E S F OR 4 1 90 32 MTG SCREWS z _ I G c 1 1 8 I co PANEL CUTC UT D RI L L I N G F O R S E MI F L U SH MT G TL f M I NAL N U M BER PA N E L D R I L L I N C1 OR C...

Страница 200: ...w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 201: ...w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 202: ...W E S T I N G H O U S E E L E C T R I C C O R P O R A T I O N R E LAY I N STR U M E N T D IVI S I O N N EWAR K N J Printed i n U S A w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 203: ...f a tapped primary winding a secondary winding Two identical coils SUPERSEDES I L 4 1 1 33C Denotes change from superseded i ssue on the outer legs of the l amination structure are con nected to the...

Страница 204: ...olarlzea Direct Ional Unit 3 Voltage Polarlzea Directional Unit 4 Time Over current Unit 5 Ina eating Contactor Switch 6 A uxiliary Switch 1 3 Fig 2 Type IRD Relay Without Case Rear View 1 Varistor 2...

Страница 205: ...ary Contact Pressure Spring 3 Magnetic Adjusting Plugs 4 Upper Bearing Screw 5 Moving Contact 6 Spring Adjuster Clamp 7 Current B ias Vane 2 7 Fig 4 Time Overcurrent Unit l Tap B lock 2 Time Dial 3 Co...

Страница 206: ..._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Fig 5 Instantaneous Overcurrent Unit J Saturating Transformer 2 Tap Block 3 Stationary Contact 4 Moving Contact Fig 6 Indicating Contactor Switch ICS 4 w w w E l e...

Страница 207: ...eo u s O vercurrent U n i t 1 The instantaneou overcurrent unit is similar in construction to the directional unit The time phase relationship of the two air gap fluxes necessary for the development o...

Страница 208: ...ECTIOIAL UII IT COMTACT CLOSES TO TilE LEFT IUTAIITAIEOU O IEIC IUEMT WilT UH EI CYLIIKI MIT UTUIATIIIQ TIAISFOIMll lED DOT DIIECTIOIAL IT LOIIIEI CYLIIIIEI UIIIT IUUCTI UIIT CMASSIS Of 1AJED SMOI TII...

Страница 209: ...33 29 5 1 45 40 38 34 30 28 21 16 15 12 1 1 3 1 24 20 18 16 15 24 13 8 5 6 0 4 6 2 9 9 0 5 0 3 0 2 1 1 5 0 93 6 5 3 3 2 1 1 4 1 1 0 7 2 4 1 2 0 7 0 6 0 37 0 24 0 43 0 27 0 20 0 15 0 1 1 0 08 0 40 0 25...

Страница 210: ...12 12 280 32 4 1 16 10 8 121 2 472 0 Degrees cu ent lags voltage at tap value current Thermal capacities for short times other than one second may be calculated on the basis of time being inversely p...

Страница 211: ...7 9 73 6 700 2850 2 0 3 1 1 10 59 5 04 38 7 262 800 2 5 4 0 110 55 5 13 39 8 280 920 3 0 4 4 1 10 5 1 5 37 42 8 312 1008 2 6 3 5 4 8 1 10 47 5 53 42 8 329 1 120 4 0 5 2 1 10 45 5 72 46 0 360 1216 5 0...

Страница 212: ...C 7 I RP 7 TI M E O V E R C UR R EN T U N I T S CONTINUOUS RATING AMPERES 2 2 2 2 5 2 8 3 4 4 0 4 4 8 8 8 9 7 10 4 1 1 2 1 2 5 13 7 16 18 8 19 3 20 8 22 5 25 28 ONE SECOND RATING AMPERES 88 88 88 88...

Страница 213: ...550 620 700 850 1020 I R D 1 1 IRC 1 1 I R P 1 1 OVERCURRENT UNITS CONTINUOUS ONE SECOND RATING RATING TAP AMPERES AMPERES 0 5 0 6 0 8 1 0 1 5 2 0 2 5 2 0 2 5 3 0 3 5 4 0 5 0 6 0 4 0 5 0 6 0 7 0 8 0 1...

Страница 214: ...YP E C0 2 I I I OVER CU RRENT RtlAY 50 60 CYCLES I I I I I I I I 1 I I 1 I I I I I I 1 I I I I I T I ME D I Al SETT I N G I I I 1 1 I 10 9 N I 8 7 I N6 I loo l r 5 r I N 1 41 I 3 I I t 2 r r I r 1 r _...

Страница 215: ...1 0 a 9 7 I 6 5 li 1 11 TYP I CAL T l ME CURVES TYPE C0 5 OVER CURREN T RELAY 50 60 CYCL ES i i I l l I II II I I I I I I I I I I I T I ME D 1 f Il l I ll looiJ I ll 5 i I I I I I I I I I f I I AL SE...

Страница 216: ...r 1 I 1 r 1 L 11 1 1 I I N i o I 10 i i P4 l 9 1 f c 1 N _ i ___ __ _ 8 r 1 X 7 1 _I_ 6 J 5 r 4 I I 3 t r i t t J t o H o I I 2 l l 1 I f I 1 2 _ i i l l i H t j tn f 1 t j 2 3 I I r I 5 I I I I I L...

Страница 217: ...l 3 2 3 5 I I 10 I I I I I TYP I CAL T I ME CU VES TYPE C0 7 OVER CURRENT RELAY 50 60 CYCLES T r r r I T I M E D l AL SETT I N G 1 1 T 1 I r 1 r I _ r r _ 6 7 8 9 10 12 11l 16 18 20 MULT I PL ES OF TA...

Страница 218: ...YPE C0 8 OVER CURRENT RELAY e0 60 CYCL ES I I I T I ME D I AL SETT I NG 1 1 10 9 8 7 6 1 5 1 ro o 3 r I 2 1 _ 1 _ _ 1 I 1 2 2 3 1 5 6 7 8 9 10 12 11 te 18 ro MUL T I P L ES O F TAP VALUE CURRENT Curve...

Страница 219: ...NT RELAY 50 60 CYCLES ll T I ME D I AL S ETT I NG 1 1 10 ll 9 8 7 6 5 3 2 to L 1 r r loo 1 2 r 2 3 5 6 7 8 9 10 12 11 1 16 18 20 MULT I PLES OF TAP VALU E CU RRENT Curve 418249 Fig 15 Typical Time Cur...

Страница 220: ...f l L 1 1 i 1 1 I I l 1 1 I ll 1 1 Ill 1 1 I I r 1 1 l I 1 1 1 i I r 2 3 II f 8 7 I 9 10 I r I IWLTl I LES Of Till VAUI CU IfiiT 20 30 110 t I I t 1 I f 1 f r _ r 1 1 10 g I 7 i 2 1 2 2898655 TYP I CA...

Страница 221: ...peres with the current lagging voltage by 60 For the directional units used with the 4 to 1 2 ampere range time overcurrent units the minimum pick up is 1 ampere for the current polarized dtrec tional...

Страница 222: ...circuit the voltage polarizing circuit at the terminals of the relay 20 A D J U S T M E N T S A N D M A I N T E N A N C E The proper adjustments to insure correct operation of this relay have been ma...

Страница 223: ...urrent unit Pas DEVICE NUMBER CHART 67N DIRECTIONAL OVERCURRENT GROUND RELAY TYPE IRP D DIRECTIONAL UNIT CO T IME OVERCURRENT UNIT t INSTANTANEOU S 0 C UNIT liST SATURATING TRANSFORMER FOR INST 0 C U...

Страница 224: ...f c_s_ _1_ _ _ c o NEG __ _ _ 289B507 Fig 1 9 External Schematic of the IRC Relay for Ground Fault Protection RELAYS DEVICE NUMBER CHART 67N OIRECTIDNAL OVERCURRENT GROUND RELAY TYPE IRO DIU UPPER DI...

Страница 225: ...he contact C al i bration Use the following procedure for calibrating the relay if the relay has been taken apart for repairs or the adjustments have been disturbed This procedure should not be used u...

Страница 226: ...d relays IRC and IRD current polarized unit are open circuited Upon completion of either a or b current is applied to the operating circuit terminals as per 24 Table 2 Plug adjustment is then made per...

Страница 227: ...n the assembly is taken up and where the moving core just separates from the stationary core screw Back off the core screw approximately one turn and lock in place This prevents the moving core from s...

Страница 228: ...Closing Direction Then the plug is screwed in Until Spuri ous Torque is Reversed t Short circuit the voltage polarizing circuit at the relay terminals before making the above adjustment TABL E I l l T...

Страница 229: ...Wli l US 190 3 STUD DIA T RMI IAL AW D MCUHT I NCJ DE TA I L S k OIA 4 0LE S FOR 190 32 MT CR WS PANEL C UTOUT l DRILLIWGr FOR SEI 1 t LU C H MTG TERMINAL NUM IER PA NEL DRILL OR C UTOU T FOR ROJa C...

Страница 230: ...DI A H O L E F OR 4 1 90 32 MTG SCREWS Z I _ I G c 2 I a 1 PI N E L CUTO UT D RI L L I N G F O R S E MI FLU SH M T G Tf l 1 I N AL I N U M BER PA N E L D f I L L I N O R CUT O U T FOR r R C E C TI o...

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