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SEis.IIC RATED-INSTANTANEOUS UNIT

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Figure 8 (8036365) Photograph:

High Dropout Unit Construction

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Содержание IAC66M

Страница 1: ...INSTRUCTIONS TYPE IAC66M TIME OVERCURRENT RELAY GENERAL f ELECTRIC Gt K 86105 Supersedes CE 1 6b75 I h 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: ...DENS 6 INDUCTION UNIT 6 TARGET AND SEAL IN UNIT 6 TELEPHONE RELAY 7 STANDARD INSTANTANEOUS UNIT 7 HIGH DROPOUT INSTANTANEOUS UNIT 8 CONSTRUCTION 9 RECEIVING HANDliNG AND STORAGE 10 ACCEPTANCE TESTS 10 VISUAL INSPECTION 1 0 MECHANICAL INSPECTION 11 ELECTRICAL TESTS 11 INSTALLATION 13 PERIODIC CHECKS AND ROUTINE MAINTENANCE 14 SERVICING 14 RENEWAl PARTS 14 2 w w w E l e c t r i c a l P a r t M a n u...

Страница 3: ...RATINGS INDUCTION UNIT The induction unit coil is available in several ranges of pickup current Table I lists ranges tap values continuous current ratings and short time current ratings of the induction unit coil The induction unit contacts will close 30 amperes for voltages not exceeding 250 volts The current carrying ratings are affected by the tap selected on the target and seal in coil as indi...

Страница 4: ...belled on the tap block To obtain a tap value of 4 0 amps on the 2 5 7 5 amp relay use taps D H TA BLE II RATINGS OF TA RGET AND SEAL IN CO ILS CURRENT OP ERA T E D Carry 30 amps for Carry 10 amps for Carry continuously Minimum operating Minimum dropout DC res istance 60 hertz impedance 50 hertz impedance SIX CYCLE TIME D ELAY TELEPHONE RE LAY seconds seconds amperes amperes amperes ohms ohms ohms...

Страница 5: ... 40 15 0 205 20 80 30 0 326 40 160 60 0 326 For forms 51 and up the standard instantaneous unit has the foll owing ratings l isted in Table IVb TABLE IVb STANDARD INSTANTANEOUS UNIT COIL RATINGS FORMS 51 AND UP SERIES OR RANGE PARALLEL 0 5 4 0 0 5 2 0 Series 1 0 4 00 Para11 e 1 2 0 16 0 2 0 8 0 Serie s 4 0 16 0 Parallel 10 0 80 0 10 0 40 0 Series 20 0 80 0 Paral l el 20 0 160 0 20 0 80 0 Series 40...

Страница 6: ...es electrical contact with a fixed member Figure 6 gives the time for the induction unit to close its contacts for various multiples of pickup current and time dial settings The time required for this unit to reset from contact closure to the Number 10 time dial position is approximately 60 seconds Burden data for induction unit coils is listed in Table VIa The impedance values are for the minimum...

Страница 7: ... 4 48 4 0 4 05 SIX CYCLE TIME DELAY TELEPHONE RELAY 15 2 0 13 12 7 0 13 6 7 0 13 5 6 0 13 2 5 0 13 2 1 0 13 0 95 0 13 0 79 0 13 as shown in Table 51 AND UP IMP POWER OHMS FACTOR 4 43 0 32 1 92 0 33 0 71 0 35 0 46 0 37 0 27 0 44 0 23 0 47 0 18 0 52 0 16 0 47 Vlb As mentioned the telephone relay OX has a six cycle time delay after it is energized through the high dropout instantaneous contacts The o...

Страница 8: ... 04 0 71 20 80 50 5 0 23 0 01 0 77 60 5 0 25 0 01 o 71 40 160 50 5 0 07 0 003 0 71 60 5 0 07 0 003 0 71 Volt amperes at five amps calculated from input at minimum pickup 12z HIGH DROPOUT INSTANTANEOUS UNIT The high dropout instantaneous unit is similar to the standard instantaneous unit except the dropout current is approximatel y 80 to 90 of the pickup current Refer to Figure 8 a photograph of th...

Страница 9: ...ICKUP I2Z 112 0 28 0 7 0 2 50 1 00 0 25 CONSTRUCTION The IAC66M r elay is mounted in an Ml case that does not have an upper contact block The case is suitable for either semi flush or surface mounting on panels up to two inches thick Hardware is available for al1 panel thicknesses To be sure that the proper hardware will be provided panel thickness should be specified on the order for the relay Ou...

Страница 10: ...is evident file a damage claim at once with the transportation company and promptly notify the nearest General Electric Sales Office If the equipment is not to be installed immediately it should be stored indoors in its original carton in a location that is dry and protected from dust metallic chips and severe atmospheric contaminants ACCEPTANCE TESTS An inspection and acceptance test should be ma...

Страница 11: ...to be made with the relay in its case and in a level position All alternating current operated devices are affected by frequency sinusoidal waveforms can be analyzed as a fundamental frequency plus the fundamental frequency it follows that alternating current devices be affected by the applied waveform Sinee non harmonics of relays will Therefore in order to properly test alternating current relay...

Страница 12: ...elay should pick up at 80 or less of its rating 4 Apply rated voltage to the OX unit The contacts should close six cycles 0 1 second after voltage is applied Target Seal in Units There are two target seal in units associated with the IAC 66M A relay The target seal in in the lower l eft front view is in the induction unit standard instantaneous unit circuit The other target seal in is located in t...

Страница 13: ...STALLATION MOUNTING AND CONNECTIONS Outline and panel drilling dimensions are shown in Figure 3 Unless the relay is mounted on a steel panel which adequately grounds the relay case the case should be grounded through a mounting stud or screw with a conductor not less than No 12 B S gage copper wire or equivalent Internal connections are shown in Figure 9A Figure 9B shows the internal connections f...

Страница 14: ... brings the operating current of the unit into agreement with the tap setting This adjustment al so makes any setting between the various tap settings possibl e Note however that if pickup is changed by turning the spring adjusting ring then the rel ay wil l be operating at a different torque level and the published time curves wil l not apply for this setting The unit has been factory adjusted to...

Страница 15: ...otograph IAC66M Relay Construction Relay Removed from Drawout Case Front View Figure 2 8027185 Photograph IAC66M Relay Construction Relay Removed from Drawout Case Rear View 15 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 16: ...BERING OF STUDS B CK VIEW 15MM DRILL 4 HOLES 7 40 I IBOMM II I 6UU ORILL _ I 250 6 HOLES PANEL D RLUN6 FOR SEMI FLUSH MOUNTING FRONT VIEW VIEW IHOWINb GMM A SEMSLY Of HARD 133M M WARE SURFA CE 5 25 MT i ON STEEL PANELS PANEL DRILLING FOR SURFACE MOUNTING FRONT V lEW Figure 3 6209273 3 Outl ine and Panel Drilling Dimensions for the IAC66M Relay 16 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...

Страница 17: ...ERMINAL BLOCK Figure 4 8025039 Photograph Cross Section of Drawout Case Showing Position o f Auxiliary Brushes 51 1 SI OC BU S T 51 52 s1 1 so 1 so f TOC Icc A IOC 3 SO roc A 51 sr 8 1 I 1 2 1 3 6 so IOC 13 ONE PHPSE ONLY IS S tO WN 5 0 6N PI ox I Figure 5 0207A7826 0 External Connections Diagram for IAC66M Relay 17 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 18: ..._ 1 r _ 4 t I 1 I 111 GEK 86105 JO 40 5I 10 lO 10 1 g 8 7 f 6 5 1 4 3 en 2 0 E P t 1 I lO 44 I 10 70 10 I II MULTIPLES OF RELAY TAP SETTING I i I i 1111I 1 I I I I I 1 M I I I UU Figure 6 0888B0273 0 Time Current Characteristics of IAC66M Rel ay 18 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 19: ...ME RANGE FOR ANY v PICKUP SETIINCi t I _ I I 3 5 6 7 8 Figure 7 0208A8695 l Operating Time Versus Current for the Standard Instantaneous Unit ADJUSTAI E CQf rA lOCKNUT SlEEVE C _ I 9 Figure 8 8036365 Photograph High Dropout Unit Construction 19 ___ 10 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 20: ...or the IAC66M Relay Front View 1i n 4 0 t t N f r OWN 1 f E LONN B AN ILJ10H M Q IN AN A l l T f M L l lll lo v NH C0NN A 5 S C wN H RANGE REV r E t REEN i 1 6LACK lEADS N TtRM 6 A NO 6 A SHORT FINGER OX AUX lt L H0 E REL AV Figure 98 0285A8839 0 Internal Connections Diagram for the IAC66M Relay Forms 51 and Up Front View 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 ...

Страница 21: ... rt lll ro N s s g n s o VI c m rtQj n r 0 rt r t 0 r 0 0 0 0 s rt 1 t ill 4 Hf 10 5 I TRANSIENT OVERREACH HNC RELAY lliilmmmammtm111111 m mrmiIt tmtilli it HIll 111 11111111 H en I co O t Q TI 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 22: ...l 3 s ffiT FINGER i 6 NST HI DROP OUT Wf1JERJ OX AU TELEftlCNE RELAY ox I j HI DROP OUT UPPER ox r 9 10 Sl UPPER WHEN USED FOR 250 V D C Figure 11 0104A8596 2 Internal Connections Diagram for the Timer Unit IAC66M Relay Forms 1 50 22 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: ...N AS HOWN HI RANGE CONN BAND D TOTERM 7 CONN C AND A TO TERM 4 HI G INST UNIT LOW RAN GE CONN AS SHOWN HI RANGE REVERSE GR EN AND BLACK LEADS ON T RM 6 AND 6 A 7 P S R R7 9 8 tO SHORT FINGER OX AUX TELEPHONE RELAY Figure 12 0285A8839 Internal Connections Diagram for the Timer Unit IAC66M Relay Forms 51 and Up 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 ...

Страница 24: ...GE Power Management 215 Anderson Avenue Markham Ontario canada L6E 183 Tel 905 294 6222 Fax 905 201 2098 www ge com indsys pm 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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