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UNDERVOLTAGE RELAYS

TYPES:

IAVSSC

IAV54E

IAVSSF

IAV54F

IAVSSH

IAV54

�

AV55J

GEH-1768G

INSTRUCTIONS

.

d

control

GE Protection an

arkway

205 Great Val

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5-1337

Malvern, PA

www

. ElectricalPartManuals

. com

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Содержание IAV54E

Страница 1: ...LTAGE RELAYS TYPES IAVSSC IAV54E IAVSSF IAV54F IAVSSH IAV54 AV55J GEH 1768G INSTRUCTIONS d control GE Protection an arkway 205 Great Val 5 1337 Malvern PA 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: ...RESET BUTTON COVER GEH 1768 SEAL IN UNIT OUTER BLOCKS CASE CONNECTING PLUGS Figure 1 8007477 Type IAV54E Relay Dis assembled 2 Cover 8007476 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 3: ...s for the external connections while the inner blocks carry the terminals for the internal connections The operating coil is connected in parallel with both the upper and the lower inner molded blocks and the trip circuit is connected in series with these blocks In this way insertion of either the upper or lower connecting plug will energize the operating coil but the trip circuit will not be comp...

Страница 4: ...ts at 60 SO or 25 cycles The operating coil will stand rated voltage continuously on any tap and will s tand tap voltage continuously on the taps above rated voltage The current closing rating of the contacts is 30 amperes for voltages not exceeding 250 volts The current carrying ratings are affected by the selection of the tap on the seal in coil as indicated in the Table 1 Function Tripping Duty...

Страница 5: ...AVSSF 82 164 328 60 8 9 0 28 2 5 are approxi 70 140 280 60 12 4 0 29 3 6 mately 60 of 64 128 256 60 15 1 0 30 4 5 these values 55 110 220 60 21 6 0 31 6 7 Burdens for 140 280 560 50 2 5 0 28 0 70 IAVS4B IAVSSH 120 240 480 50 3 3 0 28 0 92 IAV55J are approxi 105 210 420 50 4 3 0 28 1 2 mately 40 of 93 186 372 50 5 7 0 28 1 6 these values 82 164 328 50 7 4 0 28 2 1 70 140 280 so 10 3 0 29 3 0 64 128...

Страница 6: ... blocks have terminals for internal connections The relay mechanism is mounted in a steel framework called the cradle It s a complete unit with all leads terminated at the inner block This cradle s held firmly in the case by a latch at the top and the bottom and a guide pin at the back of the cas e The case and cradle are so constructed that the relay cannot be inserted upside down in the case Bes...

Страница 7: ...ay be changed by the position of the tap plug in the tap block at the top of the relay The range of this adjustment is from 55 to 140 volts on the 115 volt ratings from 110 to 280 volts on the 230 volt rating and from 220 to 560 on the 460 volt ratings Screw the tap plug firmly into the tap marked for the desired voltage i e above which the relay is not to operate The tap settings indicate voltage...

Страница 8: ...arnished contacts loose screws or other imperfections Corrections to the relay should be made in the manner described in the section on maintenance OPERATION Before putting the relay into service a check should be made to determine that factory adjustments have not been dis turbed On relays that have time dials the dials will be s et at zero before the relay leaves the factory This setting s hould...

Страница 9: ...ontact Fine silver contacts should not be cleaned with knives files or abrasive paper or cloth Knives or files may leave scratches which increase arcing and deterioration of the contacts Abrasive paper or cloth may leave minute particles of insulating abrasive material between the contacts preventing them from closing completely The burnishing tool described above can be obtained from the factory ...

Страница 10: ...GEH 1768 Figure 2 0362A0648 2 Time Voltage Curves for Type IAV54E and IAVSSC Relays 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 11: ...0 l l l K 1 I lo 90 80 GEH 1768 r to r t r 70 60 ERCliiT OF CLOSING VOLTS iO 20 10 TillE DIAL SETTING 0 l O 9 8 7 6 3 2 1 2 Figure 3 0362A0668 Time Voltage Curves for Type IAV54F and IAVSSF Relays 11 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 12: ...I _ t r r r 80 f r r t _p 60 1 _ _ _ r _ 40 _ 20 100 90 80 70 60 50 40 30 20 PERCENT OF CLOSING VOLTS f 10 DIAL d NGS 8 7 6 5 4 3 2 1 1 o2 Figure 4 0362A0650 l Time Voltage Curves For Type IAV54H IAV55H and IAV55J Relays 12 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 13: ...NG COIL SHORT FINGER Figure 6 6400515 3 Internal Connections for Type IAV55C IAV55F IAV55H Relays Front View 13 A C BUS l TR 1 P ii B U S _ _ H DEVICE FUNCTION NUMBERS 27 A C UNOERVOLTAGE RELAY TYPE IAV54E 52 POWER CIRCUIT BREAKER a AUXILIARY CONTACT CLOSED WHEN CIRCUIT BREAKER CLOSES 51 SEAL IN UNIT TC TRI P COIL 2 c _f_ 52 Figure 8 6209277 2 Typical External Connections using an IAV54E Relay for...

Страница 14: ...l 0 1 1 j ro Cll t I Q d ro Cll H JI j Ill I 0 H JI JI 0 ro 1 Ill Cll 16 6 A C SUPPLY OF CORRECT FREQ POTENTIOMETER 52 15 5 MF 2 TIMER 11 DEVICE FUNCTION NUMBERS 27 A C UNDERVOLTAGE RELAY TYPE IAV Sf SEAL IN UNIT 0 w E l e c t r i c a l P a r t M a n u a l s c ...

Страница 15: ...OVING CONTACT AND _ _ CARRIER CONTROL SPRING AND ADJUSTING RING ASSEMBL MAIN STATIONARY CONTACT AND BRUSH ASSEMBLY CRAG MAGNET Figure 10 8007475 Type IAV54E Relay Removed from Case Front View COIL MAGNET AND TAP BLOCK ASSEMBLY SHAFT _DISK Figure 11 8007478 Type IAV54E Relay Removed from 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: ...00000 00000 10 8 6 4 2 6 187 1 M l 3 0 I 157MM 176MM BACK VIEW CUTOUTS MAY REPLACE DRILLED HOLES 5 000 127MM _L 10 000 M 254M _1 L 218 I 5MM I I PANEL_ J I 718 18MM 5 25 1 75 L46MM 4 875 123MM t PANEL DRILLING 133MM 3 4 DRILL 20 HOLES 19MM PANEL DRILLING FOR SEMI FLUSH MOUNTING FRONT VIEW CA TYPICAL DIM INCHES MM FOR SURFACE MOUNTING FRONT VIEW Figure 12 K 6209272 7 Outline and Panel Drilling Dime...

Страница 17: ...LTAGE RELAYS TYPES IAV54E IAV55C IAV55F IAV54F IAV55H IAV54 AV55J GEH 1768F INSTRUCTIONS d Control GE Protection an Parkway 205 Great Va 55 1337 Malvern PA 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: ...RESET BUTTON COVER GEH 1768 OUTER BLOCKS CASE L CONNECTING PLUGS l Figure 1 8007477 Type IAV54E Relay Disassembled 2 Cover 8007476 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: ...or the external connections while the inner blocks carry the terminals for the internal connections The operating coil is connected in parallel with both the upper and the lower inner molded blocks and the trip circuit is connected in series with these blocks In this way insertion of either the upper or lower connecting plug will energize the operating coil but the trip circuit will not be complet...

Страница 20: ...t 60 50 or 25 cycles The operating coil will stand rated voltage continuous ly on any tap and will s tand tap voltage continuous ly on the taps above rated voltage The current closing rating of the contacts 1 s 30 amperes for voltages not exceeding 250 volts The current carrying ratings are affected by the selection of the tap on the seal in coil as indicated in the Table 1 Function Tripping Duty ...

Страница 21: ...VSSF 82 164 328 60 8 9 0 28 2 5 are approxi 70 140 280 60 12 4 0 29 3 6 mately 60 of 64 128 256 60 15 1 0 30 4 5 these values 55 110 220 60 21 6 0 31 6 7 Burdens for 140 280 560 so 2 5 0 28 0 70 IAV54H IAVSSH 120 240 480 so 3 3 0 28 0 92 IAVS4J are approxi 105 210 420 so 4 3 0 28 1 2 mately 40 of 93 186 372 so 5 7 0 28 1 6 these values 82 164 328 so 7 4 0 28 2 1 70 140 280 so 10 3 0 29 3 0 64 128 ...

Страница 22: ...r blocks have terminals for internal connections The relay mechanism is mounted in a steel framework called the cradle It s a complete unit with all leads terminated at the inner block This cradle s held firmly in the case by a latch at the top and the bottom and a guide pin at the back of the case The case and cradle are s o constructed that the relay cannot be inserted upside down in the case Be...

Страница 23: ... may be changed by the position of the tap plug in the tap block at the top of the relay The range of this adjustment is from 55 to 140 volts on the 115 volt ratings from 110 to 280 volts on the 230 volt rating and from 220 to 560 on the 460 volt ratings Screw the tap plug firmly into the tap marked for the desired voltage i e above which the relay is not to operate The tap settings indicate volta...

Страница 24: ...s hed contacts loose screws or other imperfections Corrections to the relay should be made in the manner described in the section on maintenance OPERATION Before putting the relay into s ervice a check should be made to determine that factory adjustments have not been dis turbed On relays that have time dials the dials will be s et at zero before the relay leaves the factory This s etting s hould ...

Страница 25: ...ontact Fine silver contacts should not be cleaned with knives files or abrasive paper or cloth Knives or files may leave scratches which increase arcing and deterioration of the contacts Abrasive paper or cloth may leave minute particles of insulating abrasive material between the contacts preventing them from closing completely The burnishing tool described above can be obtained from the factory ...

Страница 26: ... GEH 1768 L IN 1 r H ft J_j io t r 1 I t t I H t f 1 1 lA Figure 2 0362A0648 2 Time Voltage Curves for Type IAV54E and IAVSSC Relays 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 27: ...0 100 l l l 1 V l 1 90 80 70 GEH 1768 F i ooo r 60 50 0 20 10 TillE SETTI DIAL NG 10 9 8 7 6 5 3 2 1 1 2 0 Figure 3 0362A0668 Time Voltage Curves for Type IAV54F and IAVSSF Relays 11 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: ... 1 1 r I r r f r t r r _ 80 I r _ oo _ _ _ _ _ _ _ 60 r r 40 r 20 100 90 80 70 60 50 40 30 20 PERCENT OF CLOSING VOLTS SF 10 DIAL d NGS 8 7 6 5 4 3 2 1 1 o2 Figure 4 0362A0650 1 Time Voltage Curves For Type IAV54H IAV55H and IAV55J Relays 12 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: ...HORT FINGER Figure 6 6400515 3 Internal Connections for Type IAV55C IAV55F IAV55H Relays Front View 13 A C BUS 1 T RI P 1 8 U S _ _ DEVICE FUNCTION NUMBERS 27 A C UNDERVOLTAGE RELAY TYPE IAV54E 52 POWER CIRCUIT BREAKER a AUXILIARY CONTACT CLOSEC WHEN CIRCUIT BREAKER CLOSES 51 SEAL IN UNIT TC TRIP COIL 2c _1_52 Figure 8 6209277 2 Typical External Connections using an IAV54E Relay for Undervoltage P...

Страница 30: ...I t z w t o a GEH 1768 0 w _ N I u e w a 0 LLJ CD E U 0 z LLJ z 0 _ u 0 z z 0 LL w 0 z L4J z u l I u 1 la J c f N Figure 9 6154392 5 Connections for Testing Types IAV54 and IAVSS Relays 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 ...

Страница 31: ...OVING CONTACT ANO CARRiER CON TROL SPRING AND ADJUSTING RING ASSEMBLY _ MAIN STATIONARY CONTAC f AND BRUSH ASSEMBLY DRAG MAGNET Figure 10 8007475 Type IAV54E Relay Removed from Case Front View COil MAGNET AND TAP BLOCK ASSEMBLY SHAFT _DISK Figure 11 8007478 Type IAV54E Relay Removed from 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 32: ...M L 218 I 5MM I I PANEL_ J I 718 18MM 5 25 133MM 314 DRILL 20 HOLES 19MM 9 7 5 3 1 00000 00000 10 8 6 4 2 BACK VIEW CUTOUTS MAY REPLACE DRILLED HOLES 1 75 L 46MM 4 875 123MM t PANEL DRILLING FOR SEMI FLUSH MOUNTING FOR SURFACE MOUNTING FRONT VIEW FRONT VIEW CA TYPICAL DIM INCHES MM Figure 12 K 6209272 7 Outline and Panel Drilling Dimensions for Type IAV54 and IAVSS Relays 9 93 1M GE PROTECTION CON...

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