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GEK-86038 

L I S T   OF  TA BLES 

TITLE 

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Relay  Model  Description  Table 

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Target  Seal-in  Unit  Ratings 

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Auxiliary  Telephone-Type  Relay 

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Interrupting  Ratings 

Operating  Unit  Burdens 

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Burden  for  IRT51E  - Target  Seal-in  Unit 

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Burden  for  IRT51F  - Auxiliary  Circuit 

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Burden  for  IRT51G  and  IRT51H  - Target 

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Seal-in  Unit  and  Auxiliary  Circuit 

Lead  Wire  Resistance 

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Calibration  Resistor  Values 

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Содержание IRT51 E

Страница 1: ...c INSTRUCTIONS TEMPERATURE RELAY TYPES IRT51E IRT51F IRT51G IRT51H GENERAL ELECTRIC GEK 86038C 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 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 2: ... INS PECTION ACCEPTANCE TESTS PERIODIC CHECKS AND ROUTINE MAINTENANCE 14 V I SUAL I N S P E CT I O N 14 M E C HAN I CAL I N S P E CT I O N AN D ADJUSTM ENTS 15 CONTA CT INS P E CT I ON AN D C L EAN I NG 16 AUX I L I A RY B RUS H E S 16 R H EO STAT CL EAN I N G 16 EL E CT R I CAL T E ST S 16 CALIBRATION PROCEDURE 18 RENEWAL PARTS 20 LIST OF TABLES 21 L I ST OF ILLUSTRATIONS 22 2 w w w E l e c t r i...

Страница 3: ...acts are provided by an au xil iary unit operating from the main induction disk unit contacts in a pickup seal in knock do circuit as shown in Figure 8 The rel ay is sel f resetting when the detected temperatu fal l s bel ow a presel ected l evel This reset temperatu re is continuousl y adjustabl e ov a range from soc to 300C bel ow the set o perating temperatu re A manual reset ta rget incl uded ...

Страница 4: ...I 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 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 5: ...heatin g with a ssociated RTO s pl aced in strategic l ocation s in the ta nk Typical external connections for the type IRT51E rel ay are shown in Figure 10 Typical external connections for the type IRT51F rel ay are shown in Figure 11 The types IRT51G and IRT51H rel ays a re temperature protection of rotating equipment these rel ays are shown in Figure 12 intended primaril y for bearing Typical e...

Страница 6: ...rature X X X X X X X X X X Operating Circuit 1 20 240 VAC 50 60 Hz X X X X X X X X X X Auxil iary Circuit 1 20 240 VAC 50 60 Hz X X X X X X X 1 25 25 0 VDC X X X X X X X Target X X X Target Seal in 0 2 2 0 amp DC X X X X X X X X X X Reset Features Manual l y X X X X X X X El ectrical l y remote X X X X Sel f X X X X X X X X X X Number of Contacts El ectrical l y Sepa rate N O 1 1 1 1 1 1 1 1 1 2 2...

Страница 7: ... I The type IRT relays are suitable for o peration on 5 0 hertz and 60 hertz powe r systems The type IRT relays are designed for use with the following specific type resistance temperatu re detectors a 1 0 ohms at 250C copper RTDs b 100 ohms at ooc planinum RTDs c 1 20 ohm at ooc nickel RTDs Use only the specific RTD for which the particular model IRT was designed The IRT5 1E IRT5 1G and IRT5 1 H ...

Страница 8: ...he facto ry with the 1 ink in the 11HIGH pOsition Some models of the IRT51F A relay are rated at 110 220 VAC or D C See Table I The target shows whenever an overtemperature condition is first sensed It must be manually reset The target is not a s eal in type The auxiliary telephone type relay contacts will close and carry 30 amps DC momentarily for tripping duty at control voltages of 2 50 volts D...

Страница 9: ...urdens for the operating units of the type IRT relays based u pon the type of RTD for which the unit is designed TABLE 4 OPERATING UNIT BURDENS RTD DESCRIPTION OHMS U MAl tiUAL VOLTS FREQUENCY MILLIAMPS VOLT AMPS WATTS 1 0 25 co pper 1 20 60 63 5 7 62 2 61 240 60 3 1 7 7 61 2 60 1 20 5 0 7 3 1 8 77 2 7 1 240 5 0 36 5 8 76 2 7 1 I 1 00 0 platinum 120 60 65 4 7 80 2 67 240 60 32 8 7 87 2 69 1 20 50 ...

Страница 10: ...s 2000 ohms infinite ohms 3700 ohms infinite ohms 4000 ohms infinite ohms 1760 ohms infinite ohms 2000 ohms infinite ohms 3520 ohms infinite ohms 4000 ohms infinite ohms CON STRUCTION The relay case is suitabl e for either surface or semi fl ush panel mounting Hardware is provided with the rel ay for either mounting method The cover attaches to the case with four cover screws which have provisions...

Страница 11: ...he relay case to avoid damaging the reset mechanism RECEIVING HANDL ING AND STORAGE These relays when not included as part of a control panel are shipped in cartons designed to protect them against damage Immediately upon receipt of a relay examine it for any damage sustained in transit If damage due to rough handling is evident file a damage claim at once with the trans portation company and prom...

Страница 12: ...o be used for different voltage sou rces See Table 1 fo r the relay voltage ratings 1 20 volt AC Operation Coil H1 H2 must be placed in parallel with coil H3 H4 To make the parallel connection connect lead H1 to lead H3 and lead H2 to lead H4 Polarity is important 240 volt AC Ope ration Coil H1 H2 must be placed in series with coil H3 H4 To make this connection connect lead H2 to H3 Polarity is im...

Страница 13: ...ontact is desired the green lead should be connected to terminal 1 0 There is a sho rting bar between terminals 9 and 1 0 This sho rting bar is u sed to protect current transfo rmer circuits from being o pened whenever the relay connection plug is removed This shorting bar may be removed if it is not u sed Some models of IRT5 1F A relays are rated at 1 1 0 220 VAC or DC See Table 1 IRT5 1G and IRT...

Страница 14: ... 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 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 15: ...al interlock arrangement that will maintain the last energized position of the contacts This position will be maintained even if power is removed from the relay This s pecial feature must be considered when first placing the relay into service or when returning a relay back into service after completing maintenance on the relay To avoid tripping on start up for reasons other than overtemperatu re ...

Страница 16: ...ical imperfections If any of these are found they should be corrected immediately INSPECTION ACCEPTANCE TESTS PERIODIC CHECKS AND ROUTINE MAINTENANCE Immediately upon receipt of the relay it should be inspected and tested to make sure that no damage has been sustained in shipment and that the relay calibrations have not been disturbed Also in view of the vital role of protective relays in the oper...

Страница 17: ... the shaft has 1 64 to 1 32 inch end play Both set screws must be secu rely tightened after the adjustment is complete 3 The contacts should have appro ximately l 32 inch wipe That is the stationary r contact tip should be deflected about 1 32 inch when the disk and moving _ contact complete their travel The contact wipe on the left stationary contact is adjusted by turning the screws in the conta...

Страница 18: ...h It is especially important on current circuits and other circuits with shorting bars that the auxiliary brush be bent high enough to engage the connecting plug or test plug before the main brushes do This will prevent the current transformer secondary circuits from being opened or the current circuits from being interrupted RHEOSTAT CLEANING Although the sliding contact in the temperature select...

Страница 19: ... is the resistance to be used as the simulated RTD load Measure the resistance of the resistor very carefully since a small difference in resistance values can mean several degrees difference between what is desired and what is actually obtained During the 30 minute warm up period set a temperature on the temperature selection dial just over the temperature associated with the simulated RTD load T...

Страница 20: ...ect resisto r A from Table g across terminals 4 and 5 Short terminals 5 and 6 to gether 5 Turn the temperature selection dial to the 16QOC setting 6 Apply rated voltage and frequency to the o perating circuit 7 Adjust R1 until the moving contact just makes the left IRT stationary contact IRTL Tighten the slide band in this position If the Rl sliding tap does not permit this setting precisely adjus...

Страница 21: ... point mark the location of the temperature selection dial Do not disturb this dial setting until the reset temperature calibration is complete Next determine the reset temperature with respect to the overtemperature setting For example the overtemperature setting that is required for a particular application is 120oc and the desired reset temperature is uooc The temperature difference between the...

Страница 22: ...e wo rn broken o r damaged When o rdering renewal pa rts add ress the nea rest sales office of the General Electric Company Specify the name of the pa rt wanted quantity required and complete nameplate data of the relay 20 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 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 23: ... Interrupting Ratings Operating Unit Burdens 8 Burden for IRT51E Target Seal in Unit 9 Burden for IRT51F Auxiliary Circuit 9 Burden for IRT51G and IRT51H Target 9 Seal in Unit and Auxiliary Circuit Lead Wire Resistance 14 Calibration Resistor Values 19 21 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 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 24: ...1E Relay External Connections Diagram Type IRT51F Relay External Connections Diagram Types IRT51G and IRT51H Relays Resistance of 10 ohm Copper RTD versus Temperature When Used With the IRT Relay Resistance of 100 ohm Platinum RTD versus Temperature When Used With the IRT Relay Resistance of 120 ohm Nickel RTD versus Temperature When Used With the IRT Relay Fahrenheit to Centigrade Conversion Outl...

Страница 25: ...PER T PIVOT INDUCTION DISK SPRING Figure 1 050283 1 Type IRT51 G and IRT51 H Relay Front View Figure l 050283 1 Type IRTSIG and IRT51H Relay Front View 23 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 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 26: ...re 2 050283 2 Type IRT51 G and IRT51 H Relay Right Srde Vrew Figure 2 050283 2 Type IRT51G and IRT51H Relay Right Side View 24 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 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 27: ...TCHING RELAY __ GEK 86038 Figure 3 050283 3 Type IRTSJG and IRTSJH Relay left Side and Back View 25 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 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 28: ... WIRE 1T 36 LONG u AWG 22 PIPE SIZE _z_HEX 8 1 1 P T 77 L JJ PI PE SIZE BRASS REDUCING BUSHING PIPE FITTING Figure 4 0285A6731 0 R esistance Temperature Detector Assembly 26 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 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 29: ... GEK 86038 ARMATURE OPERATING ARM RESIDUAl SCREW LOCKNUT POLE PIECE Figure 5 8012106 Telephone Relay 27 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 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 30: ...G BAR__ NOTE AFTER ENGAGING AUXILIARY BRUSH CONNECTING PLUG TRAVELS Y4 INCH BEFORE ENGAGING THE MAIN BRUSH ON THE TERMINAL BLOCK Figure 6 8025039 Drawout Case Contact Assembly 28 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 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 31: ...GER 5 GEK 86038 I 7 HI H2 H3 H4 8 IRT UPPER COILS Figure 7 0285A6213 0 Internal Connections Diagram for the Type IRT51E Relay 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 c o m 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 32: ...RELAY T TARGET HI H2 H3 H4 RT UPPER COILS GREEN LEAD A REMOVE IF NOT USED 6 fl 7 10 Figure 8 0285A6214 2 Internal Connections Diagram for the Type IRT51F Relay 30 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 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 33: ... R M 5 Mbll iJAL RE5ET 5 1 ITCH Q P AUX I LI A RY OPERATI NG U N IT RE AUX I LI A RY RESET U N IT i TARGET SE A l I N U N I T F i gure 9 028 5A6215 I Inte rnal Connections Diagram fo r the Type IRT5 1G and IRT5 1H Rel ays 3 1 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 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 34: ... P r I r CLUDED D E S C R I P T I O N rw E L U UJ T 4 9 IR T3It I rJ O U C T I O J H M P REL A Y tRTt L E F T c o rn H O T T S i T A R G E T S E A L I N J J I T 2 C R u T fl R A K t R a A U X C O N T A C T T C T R J P C O I L 2 8 R E S I S T TEMP D E T E C T O R F i gure 10 018488779 1 Sh 1 External Connect i ons Di agram for t he Type IRT51 E Rel ay 32 w w w E l e c t r i c a l P a r t M a n u a ...

Страница 35: ... I 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 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 36: ...P O S I T I O N F O R 2 4 0 V 5 0 6 0 H Z OR 2 5 0 V D C Dt V 10 9 2 1 C R 1 1_ _ _ TR l c P d r U S_ _ _ 91 9 GREEN LEAD A 19 GREEN LEAD TO STUD 10 A REMOVE SHORTING BAR BETWEEN STUDS 9 AND 10 _E_ s tL T FE I NCL U D E D DES CR PTIO I ELEMENT I R T F I ND U C T I O N TE M P R E L 4 IRTR R IGHT CONT lCOI Dl I RT Lf FT CONT HOT A A JX RY dNI T ARGF 1 C I R CU I T llR AKE R lL AUX C O N 1 C T T C T ...

Страница 37: ...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 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 38: ...T P O W ER S U P P L Y T O S T UDS 1 3 F O R F O R 240V 50 60 HZ O R 250V D C 2 IJR 3 DEV JO 4 9 28 j2 T YPE I JCLUDED DESCR IPT imJ EU J E JT RT51G I N D U C T I O N T E M P R E L A Y O il H r fTo R GHT CONT 1COil2l IRT LFFT CO JT CHOT l OF AUX OPER U J T F UX RESt Jr T r s I ANUAI R ES F T SWI TCH T r T A R G F T S F A I _ I J U N I T f ESIS T MP Dl fE OR CIR CUlT llR _ AKER T C TRIP COIL _ t U ...

Страница 39: ...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 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 40: ... I I I I I I I I I I I I I I I I I I I I I I I I I v I I I I J I I I I I I I I I I I I I I I v I I I I I I I I I I t I I I I I I I I I I I I I I I I I I I I I I I I I J I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I _l I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I l I I I I I I I I ...

Страница 41: ... 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 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 42: ...J I I I _l Y l I I j I I I I I I I I I I I I I I I I I I I j_ I I I I 1 I I I I l T I I I I I I I y I I I I I I I L _l I I I I I I I I I I I I I I I I I I v I I I I I I I I I I v I I I 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 I I I I I I I I I I I I I I I I I J __ I I I I I I I I I I I I I I I I I I I I l j_ I I I I I I I 1 _1_ J I I I I I I l I I I I I I I I I I I I I __ I J I I ...

Страница 43: ... 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 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 44: ...I I I I I I v I I I I I I I I I I I J I I l I V I I I I I I I I I I I I I Vi I I I I I I I I I I I _I J I I I 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 I 11 I LA I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I _I I I I I I I I I I I I _j_ I I I I I I I I I I I I I I I I I I I I I I I t I I I I I I I I I I I 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 I I I I I ...

Страница 45: ...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 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 46: ...I I 1 I i i I J I I I 1 I i I I I 1 I l I ll I j 1 1 1 I I I I 17 I I I I I ll I I II I I ll I v I I I i I I I I I I I I i I I I I I I I I J II II I I l I I i I I I I I I 0 40 80 1 20 1 60 2 0 0 24 0 T E M P E R A T U RE I N D E G R E E S C E N T I G R A D E F i gure 16 0285A6732 Sh 4 1 Fahrenhe i t t o Cent i grade Conversi on Revi sed si nce l ast i ssue 38 l 1 1 f hr I I I I I I I I 1 r I I I I...

Страница 47: ...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 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 48: ...8 8 1 223M I 2 M 2 1 8 J 5MM I 2 1 8 r 5MM 1 1 I I FOR 5 687 1 4 4 M M PANEL DR I L L I NG SEM I F L U S H MOUNT I NG FRONT V I EW PANELJ i l 7 1 8 1 8MM 3 4 DR I LL 1 0 H O L E S 1 9MM PANEL DR I LL I NG F O R SURFACE MOUN T I NG FRONT V I EW 5 1 6 1 8 S T U D TYP I CAL D I M 3 0 I 7 6MM _ I NCHE S MM V I EW SHOW I NG A S SEMBLY OF HARDWARE FOR SURFACE M T G ON S TE E L PA NE L S F i gure 17 0062...

Страница 49: ...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 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 50: ... 5 1 23MM 1 75 I 46MM f PANEL DR I L L I NG 1 33MM 314 D R I L L 2 0 H O L E S 1 9MM PANEL DR I LL I NG FOR SURFACE MOUNT I NG FRONT V I EW FOR S E M I FLUSH MOUNT I NG FRONT V I E 1 C A TYP I CAL D I M I NCHES MM 3 0 76MM 5 1 6 1 8 S TUD V I EW SHOW I NG ASSEMBLY OF HARDWARE FOR SURFACE MTG ON S T E EL PANE L S F i gure 18 006209272 6 Out l i ne and Pane l Dri l l i ng for Type IRT51G and IRT51H ...

Страница 51: ...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 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 ...

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