GE AKR-100 Series Instructions - Installation And Operation Download | Manualshive

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Summary of Contents for AKR-100 Series

Page 1: ...OLTAGE POWER CIRCUIT BREAKERS AKR sA l OO Manually operated AKD S type AKR 5 100 Manually operated AKD type i T AKR 5B 75 Electrically operated substructure type i t w d r 1i r t a 1l Lu Y B tr s X i rr i l i liiir F r i k AKR sC 75 Electrically operated AKD 6 type l s S Ff i ...

Page 2: ...g 14 MAINTENANCE lnspection 14 Lubrication 14 Reference Publications 15 CurrentRatingsforAuxiliaryDevices 15 INTERCHANGEABILITY OF DRAWOUT BREAKERS 16 E Type Rejection 16 PHOTOGRAPHS AKR 2 75 E 6 AKR 5 100 M cover AKR 5A 75 E 7 AKR 5A 100 M cover Drawout substructure I AKR 5B 75 E cover 18 AKR 58 75 M e AKR 5C 75 E cover AKR 5C 75 M 10 FuseRolloutElement 11 E Electrically Operated M Manually Opera...

Page 3: ... identifies the trip device type as follows 2 EC tB DC onty 4 EcS s Sdi 50 60 Hertz only N Non automatic ln addition all non automatic 250 VDc breaker types carry the suffix letter D after their frame number e 9 AKR NB 7SD EC 18 trip devices are the electro mechanical type ECS and SST units are Solid State For detailed information on these trio devices refer to the following publications ECS SST c...

Page 4: ...ience for operation and maintenance The breaker should be easily accessible to the operator and there should be sufficient space available for maintenance work MOUNTING TYPES AKR 75 and 100 breakers are furnished in both drawout and stationary construction The mounting type is identified by the second middle digit in the breaker s nameplate desig nation as follows AKR 4 f 75 where t mounting type ...

Page 5: ...t To do this insert the rack ing handle and rotate it fully clockwise t lf a compartment contains a keylock it will not ac cept the AKR 751100 replacement breakers as re ceived The AKR drawout mechanism differs from that of its predecessor AK model causing the AKR breaker to mechanically interfere with the keylock during breaker insertion To remedy this it will be necessary to relocate the keylock...

Page 6: ...mounted on tne compartment wail Keeps rne breaker trip free during the outward tiavel from the TEST oosition 5 Before proceeding with subsequent operations to re_ move the breaker from the tray visually check the breaker s CHARGED DTSCHARGED anO Opf ru_blOSf O tnOicators to verify that the breaker is open and the springs re OiscnargeO This precaution is particularly important a t locations where A...

Page 7: ...ally pulled out from the DISCONNECTED to the WITHDRAWN position here the breaker is completely out of its compartment ready for re moval NOTE All electrically operated AKR 751100 breakers employ a spring discharge interlock which prevents removal of the breaker with lfs c os ing springs in the charged state Before the breaker can be moved away from the DISCON NECTED position toward the WITHDRAWN p...

Page 8: ...ed and are not present in existing compart ments originally furnished for non quick close type electrically operated AK 751 1 00 breakers Regard ess of whether this interlocking hardware is present in a compartment ALWAYS verify that the closing spnngs are discharged and the breaker is tripped OPEN before removal is attempted Fig 3 AKR drawout substructure Cat No TAK8SS02 3200 amperes 5 Attach lif...

Page 9: ...bottom flange of the breaker rests against the guides behind the dowel pins 6 Slowly lower and guide the breaker onto the tray so the holes in the rear flange fit over the two dowel pins When correctly positioned on the dowel pins the breaker s rear and side bottom flanges will rest firmly on the tray 7 Secure the breaker to the tray by inserting and tighten ing two 3 a inch hex head screws into t...

Page 10: ...artment visually check the breaker s spring charge and close indicators to verify that the breaker is open and the springs are discharged 5 Remove the two g e inch hex head screws which fasten the breaker to the compartment tray 6 Attach the lifting device to the cutout notches in the top wraparound frame of the breaker using care to prevent dam age to the wiring 7 Lift the breaker approximately o...

Page 11: ...eel screen in front of the fuses This panel can S be opened to allow access to the fuses only when the FRO is in the WITHDRAWN oosition In all other oositions an inter ference angle attached to its left side prevents the panel from being opened Unlike the other three types AKD fuse rollouts do not employ a screen in front of the fuses lnstead of acting directly on the racking mechanism the keylock...

Page 12: ...654321 Lq loooooo 1234567a9rc Control connections to stationary breakers are made to a terminal board mounted on the breaker Figure 7 shows typical closing and tripping connections lf equipped with an overcurrent trip device which includes a ground fault element for use on 4 wire circuits an additionil terminal board is provided on the breaker for connecting to the equipment mounted neutral sensor...

Page 13: ...otor through the G switch contacts see fig 9 The motor through the gear reduction output crank compresses lhe closing springs until they are fully charged As this fully charged position is reached mechanically operated switches F and G reverse their shown position the G switch deenergizlng the motor and the F switch establish ing a circuit to the X relay At the same time a mechanical prop is posit...

Page 14: ... moisture or other unfavorable conditions exist or if the vital nature of the load warrants it Always inspect the breaker after a short circuit current has been interrupted At the time of inspection the following checks should be made after the breaker has been deenergized 1 Manually operate the breaker several times checking for obstructions or excessive friction Manual closing of an electrically...

Page 15: ...00 1 High Cunent Testing of AKR BreakerswithECS SST GEK 64455 TABLE 5 CURRENT RATINGS FOR AUXILIARY DEVICES Type Load or P F Voltage Interrupting Rating Nominal Range Auxiliary Switch Bell Alarm Switch Resistance 48 dc 38 56 25 00 125 dc 1 00 1 40 11 00 2 5 250 dc 200 280 2 O0 0 9 600 dc 508 672 0 45 0 3 Electro Magnet 48 dc 38 56 15 00 125 dc 1 00 1 40 6 25 2 5 250 dc 200 280 1 75 0 9 600 dc 508 ...

Page 16: ...match and will not seat on the tray Becaus tthe B type drawoutmechanism is nearly identical to the AKD type all B elements include additionat means to rejectthemfrom AKD compa rtments e n iiiigger Oracfueti attached to the riqht edoe of the re rlr r l r h B breaker per Fis 1 2 rh is interfe es with th o iine risnt warr of the AKD compartment d i iffi the B unit CODE C TYPES All C elements are uniq...

Page 17: ...EAKER MOUNTING PINS AKR SUBSTRUCTURES Deeo Escutcheon coce T6t r AKD 6 T l 1 r Ir i u il 3200A F _il 3200A F__ t_ lr 4 cocre H H lt il I AKR 100 ttrt I TAKg4FCC 1Qt1lte g1 F ll oo F l l 25 rl Fig 10 Drawout breaker interchangeability chart plan view All breaker units joined by r fit the same compartment All others have unique mounting and are not interchangeable 17 ...

Page 18: ...tion hardware on AKR 75 AKD type units to prevent insertion into B type substructures jis s is i t is REJECTION BRACKET _ INTERFERES WITH RAMP CAM ON SIDE WALL OF AKD COMPARTMENT Fig 1 2 Reiection means on AKR 75 1 00 code B type drawout breakers to exclude them from AKD type compartments 18 ...

Page 19: ...FCB AKR I OO 1 Breaker side plate 2 Bottom flange of side plate 3 Rejection plate 4 3 8 diam pin in drawout tray 5 V2 diam pin in drawout tray G Clearance hole in plate and flange 7 Breaker mounting bolt hole Fig 13 Rejection hardware on AKR 75 100 Code B type drawout breaker elements Plan views AKR 75 19 ...

Page 20: ...K T iON IDE PTATE AKR 7 5 t l zrz l I tue vrL q I F l L 14 l I_pz 1 J l PrNrN t tf SLIDE r rz lHi I rv e J4 t9 91 I r oo l BREAKER MOUNTING PIN F l A qrii r rzk J I a l l E l z re l lT 41 G_ 20 Fig 14 Reiection hardware on AKR 75 100 code c type drawout breaker elements side views ...

Page 21: ... ro 600VAc AKR IOO 600VAc lz tzj i l l r I l l r rz eE lS SI tF LP1 Frtr l I th vIL q I l j1 l y v l9 l LP1 I l lr rz 9rr 32OOA FUSE ROLLOUT ELEMENT TAKs3FCC 4OOOA FUSE ROLLOUT ELEMENT TAKg4FCC zl l I l l E f t l I h a l l LTJ LP5 21 ...

Page 22: ...LES AND PINS ADDED FOR E TYPE REJECTION BASIC REJECTION SYSTEM PER FIG 13 PLAN VIEW Fig 15 optionat E Type reiection hardware on AKR 75 100 code B type drawout breaker elements IT I JJ Y ul r c0 LL F z cf L I I I I t Y 22 ...

Page 23: ...GEI 861518 RIGHT SIDE PLATE OF BREAKER MOUNTING PINS 4 it r L RIGHT SLIDE BAIL FRONT l t Fig 16 optional E Type rejection system on AKR 75 100 Gode c drawout breaker elements 23 ...

Page 24: ...Distribution Equipment Division o General Electric Company Plainville Connecticut 06062 GEitERAT ETECTRtC ...

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