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Содержание IJC51E

Страница 1: ...GEK 65583B INSTRUCTIONS TYPE IJC51E CURRENT BALANCE RELAY GE Meter and Control 205 Great Valley Parkway Malvern PA 19355 07 15 ...

Страница 2: ...TS 7 DRAWOUT RELAYS GENERAL 7 POWER REQUIREMENTS GENERAL 7 TARGET SEAL IN UNIT TEST 8 INDUCTION UNIT 9 RECEIVING HANDLING AND STORAGE 10 ACCEPTANCE TESTS 10 VISUAL INSPECTION 11 MECHANICAL INSPECTION 11 CAUTION 11 INSTALLATION PROCEDURE 12 LOCATION 12 MOUNTING 12 CONNECTIONS 12 ADJUSTMENTS 12 PERIODIC CHECKS AND ROUTINE NAINTENANCE 12 CONTACT CLEANING 13 SERVICING 13 RENEWAL PARTS 13 2 ...

Страница 3: ... in current in the protected circuit regardless of magnitude will not cause a relay operation as long as the unbalance does not exceed the slope setting of the relay 115 125 135 or 150 When a fault or unbalance occurs in the machine or line and causes the current in one of the phases to exceed that in the others by more than the slope setting the torque produced by the operating coil will be great...

Страница 4: ...UNIT The target seal in units are Hi G units with 0 2 and 2 0 ampere taps The 0 2 ampere tap can be used for trip circuits that have 2 amperes or less of tripping current The 2 0 ampere tap is used in trip circuits that have at least 2 amperes and up to 30 amperes of trip current available at the maximum control voltage If the tripping current exceeds 30 amperes an auxiliary relay and contact must...

Страница 5: ...e shifting one flux away from the other by use of shading rings on one half of the U magnet pole face the other half is unshaded The operating U magnet produces torque to close the normally open contact while the restraining U magnet produces torque to open the contact The relay will close its contact when the restraining quantity is some percentage plus or minus a tolerance of the slope tap selec...

Страница 6: ...to complete the circuit The outer block attached to the case has the studs for the external connections and the inner blocks have the terminals for the internal connections Every circuit in the drawout case has an auxiliary brush as shown in Figure ii to provide adequate overlap when the connecting plug is withdrawn or inserted Some circuits are equipped with shorting bars see internal connections...

Страница 7: ...es a target into view which latches up and remains exposed until released by pressing a button beneath the lower left corner of the cover NOTE All tests must be performed with the relay in its case or in an equivalent case TESTS DRAWOUT RELAYS GENERAL Since all drawout relays in service operate in their cases it is recommended that they be tested in their cases or an equivalent steel case In this ...

Страница 8: ...he target seal in unit picks up This should occur at the value listed in Table III Remove the jumper and note that the contact of the target seal in unit remains closed Reduce the current gradually and note the value of current needed to drop out the target seal in contacts This should occur as listed in the dropout portion of Table III The target seal in flag should remain latched in It can only ...

Страница 9: ...tion If the disk stops somewhere in its travel look for excessive friction parts that may be touching or foreign matter in the drag magnet air gap Time Tests Figure 9 is the operating time curve with zero restraint current Figure 10 is the operating time curve with 2 5 and 5 0 amperes restraint current with the relay set in the 115 slope tap The time curve settings can he verified using the connec...

Страница 10: ...signed 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 transportation company and promptly notify the nearest General Electric Sales Office Exercise care when handling or unpacking the relay to avoid disturbing adjustments or damaging the relay If the re...

Страница 11: ... There should be at least 1 32 inch wipe on the seal in contacts 4 The targets in the seal in unit must come into view and latch when the armature is operated by hand and should unlatch when the target release lever is operated 5 Make sure that the fingers and shorting bars agree with the internal connections diagram Figure 12 CAUTION Every circuit in the drawout case has an auxiliary brush It is ...

Страница 12: ...sions are shown in Figure 13 CONNECTI ONS The internal connections diagram for the relays is shown in Figure 12 Typical external connections are shown in Figure 14 One of the mounting studs or screws should be permanently grounded by a conductor not less than 12 B S gage copper wire or its equivalent ADJUSTMENTS Target Seal in There are no adjustments available on the target seal in unit in the fi...

Страница 13: ... described in the section on ACCEPTANCE TESTS Relays that are out of calibration can be returned to satisfactory operation by making some minor adjustments Pickup can be reset by adjusting the control spring with the adjusting sprocket The time can be varied with the drag magnet By design the slopes have no adjustment other than that which was performed at the factory U magnet air gaps have a sign...

Страница 14: ... ____ I n I __zEz I i i a j LU D J L Cu 0 0 J 0 C LU LU cc uJzL I Ci CD 0 C I S Ci LC 4 4 C 0 o 70 CD 0 LC CD 4 C 5 0 LL ijf a r ...

Страница 15: ... I I I I LZ LJ U U U 0 H LiJ 4 cca i DH w U H 6 1 Li LL Li 0 C a F C I C I Lf ri c ci CJIa1 i S C p U S 0 LI r 0 i p a Q LL co i C rC C C 5 U LCD I4 F Ni ...

Страница 16: ...0 U S ci 4 J Lfl 5 ci S_ r 0 ci ci 5 1 1 I z 4 H w uJ 11 4 co LU uJ I2 0 J Cr IC cJ 1 I 1 w LC L 3 LU S 7 H LU 1 II 14 _r j ...

Страница 17: ...J oSLQPE CUPVE 5 40 AMPERE RESTRAINT Zz RLY4ORERAi1 4 C I 1 1r 1 z t Ill I m rz_t Jzttz _z i __ z_________ L 1 I _ U25 Er _ 4 3 E __ Figure 4 0285A6675 1 Slope Curve for 125 Percent Slope at Five to Forty Amperes Restraint 17 ...

Страница 18: ...N 1 i 11111Ff11 UI Lf LLJz I UJ b U Q Th LL _ro T ZZZ ZZJi I 7 c I LiZ 0 _ _QC L 41 I1i1 jI L _ b C 0 L 0 OD C bJ C cD C 0 C LL C r iv 4 ç i or 1iiijjJ U ...

Страница 19: ...LU cii 0 C ci I ci LO co S cliv 0 0 0 0 0 0 0 0 ai 4 C J ro 0 ci S D N I LU i Q w L _Jw uD 0 F U a h 0 I 1 N 1 ci 4 I 0 12 cC to Qi L ...

Страница 20: ... cr 1 i GEK 65583 Figure 7 0285A6673 1 Slope Curve for 150 Percent Slope at One to Eight Amperes Restraint 12 i 1 If I2JJC5IE A 150 SLOPE CURE1 8 AMPERE ESTRAINT ELAY bPERA ON THI SIDE ES L 3___ i r z 1 j 1 1z 20 ...

Страница 21: ... 14 C FL 441 fi 0 i itII Ct cr3 r Cr3 J I I CD J rI o ri 0 7 r V I rD r nrD Do D 31 rl V CD Cr 7 0 V CD ti1i t 1iLi i l 1i 4 I I I Ti jooJJ S L4t sç D r 1 t t t L iji VIII 00 mr rn rj rr1 rn cno Hc H rr I 1 f l JL ZtLH L L iL ...

Страница 22: ...i I IF H F 2 1 ri IzJ r r T 4 ir GE K 6558 3 MULTI PLLS OF PICKUP CURRLNT Figure 9 0138B7643 O Operating Time Curve for the H5 Percent Slope at Zero Restraint Current Revised since Inst issue IOU ID 2 ID On 4 z DI z 0 22 ...

Страница 23: ...GEK 65583 MiTRES OF PC UP_CURRENT Figure 10 0138B7644 o Operating Time Curve for the 115 Percent Slope at 2 5 and 5 0 Amperes Restraint L i Revised since last issue 23 ...

Страница 24: ...FTER ENGAGING AUXILIARY BRUSH CONNECTING PLUG TRAVELS 1 INCH BEFORE ENGAGING THE MAIN BRUSH ON THE TERMINAL BLOCK Figure 11 8025039 Cross Section of Case and Cradle Block Showing the Auxiliary Brush and Shorting Bar AUXILIARY BRUSH TERMINAL BLOCK SHORTING BAR 24 ...

Страница 25: ...GEK 65583 TARC ET SEAL IN IJC CONTACTS RESTRAINT COILS OPERATING COILS Figure 12 0285A5621 O Internal Connections Diagram for the JJC5I E Relay 25 4 IS SHORT FINGER ...

Страница 26: ...ince last issue 6 625 168MM PANEL LOCATION SEMI FLUSH SURFACE 4 5 16 18 STUDS FUR SURFACE MTG 20 31 516MM GLASS N I 6 10 32 X 3 8 MTG SCREWS 1 125 29MM STUD NUMBERING 97531 00000 00000 10 8 6 4 2 6 187 157MM BACK VIEW 3 5 t 5 8 DRILL 9MM 4 HOLES 175 I 15MM f 0 252MM t 13 500 I I A342MMt 6 75 I I I 171MM 19 875 I 9 875 504MM 9 50 L 241MM 250MM c a 11468 718 18MM f 13 ft3 4 DRILL 25 3MM 10 HOLES 19M...

Страница 27: ...OSED WHEN BRKR IS CLOSED TC TRIP COIL 4 CURRENT BALANCE CC OPERATING COIL RC RESTRAINING COIL flSI TARGET SEAL IN 2 3 1 D C TRIP BUS I 4G 46 46 R S I T Ts L TSIT TSI 3 52 0 52 TC 321 RELAY TYPE IJCSIE Figure 14 0285A6789 O External Connections Diagram for the IJC51E Relay 27 ...

Страница 28: ...EAD TOP MID SOT A STLJD3 STUD5 STUD 7 STUD STUD STUD B 14T018 14T016 1610 8 C STUD8 STUD4 STUD6 Figure 15 0285A5110 1 Test Connections for the IJC51E Relay 6 91 500 GENERAL ELECTRIC METER AND CONTROL BUSINESS DEPT MALVERN PA 19355 NG CBACK VIEW 18 1614 000 7531 6 4 2 000 C A B 28 ...

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