Courtesy of NationalSwitchgear.com
Page 1: ...5H AM 13 8 500 5HB AM 13 8 500 5HV AM 13 8 50Q 5HVB AM 13 8 500 6C AM 13 8 500 6CB AM 13 8 500 6H AM 13 8 500 6HB CONTENTS Introduction Receiving Handling and Storage Installation Description of Opera...
Page 2: ...Cover Photo 8034807...
Page 3: ...this combination has avery corrosive effect on many parts 3 Unfinished surfaces of rollers latches etc of the operating mechanism should be coated with grease to prevent rusting If the breaker is stor...
Page 4: ...he test coupler to the circuit breaker and operate ittelectrically several times Check the control voltage as de scribed under CONTROL POWER CHECK Page 14 4 Disconnect the test coupler and replace box...
Page 5: ...0 Spring Blocking Device 7 10 11 12 1 Figure 2 8034473 Left Side View ML 13 Operating Mechanism 2 Secondary Coupler Interlock Switches Auxiliary Switch Latch Checking Switch Switch Cam Charge Discharg...
Page 6: ...the metal clad unit In cases where breakers with type ML 13 mechanisms must match and line up with breakers having type ML 11 mechanisms the spring charging circuit for both mechanisms should be fused...
Page 7: ...l provides for maximum safety in the event that control power is suddenly restored without warning In this event the motor drive will override the ratchet wrench and continues to charge the springs Cl...
Page 8: ...age to collapse The energy stored in the opening springs is released to provide the required opening speed for successful interruption of the circuit 14 15 25 Fig 7 0114C5320 Sectional Side View of Me...
Page 9: ...rtion of each additional blow out coil into the circuit At the time the arcing con 12 13 f 15 14 t 3 16 17 18 19 4 20 t 21 22 23 24 25 26 27 iii 28 in 29 II t i I 7 V 4 Fig 8 0634D0372 Cross Section o...
Page 10: ...S All adjustments should be checked during per iodic inspections and whenever it becomes nec essary to repair or replace parts that have become worn or defective while in service The following adjustm...
Page 11: ...e 10 loosenthe check nut 4 and turn the adjusting nut 3 Screw ing up onthe adjusting nutwill decrease the primary contact wipe down will increase it Tighten the check nut close the breaker and recheck...
Page 12: ...ng pawls and to the front if the clearance is under the minimum at the driving pawl Move the motor assembly approximately twice the dimensional in crease required at the pawl Be certain the motor asse...
Page 13: ...nger Interlock Refer to Figure 14 With the breaker in the closed position the vertical distance A from the top of the plunger bolt 1 to the bottom of the breaker lifting rail 3 should be 11 7 32 to 11...
Page 14: ...ed range check the voltage at the source of power and line drop between the power source and breaker When two or more breakers operating from the same control power source are required to close simult...
Page 15: ...ons give the items that should be included in an inspection and general recommendations on the maintenance of breakers Interrupters Since there are nomovingparts the interrupters of a magneblast break...
Page 16: ...ey can be made smooth with a fine file After completing inspection of the contacts check the contact adjustments as specified under ADJUSTMENTS In order to maintain reliable operation it is important...
Page 17: ...driving pawl lever Bronze or cast iron Remove bearings or links clean per in structions and apply D50H15 lubricant liber ally Contact Arm Hinge Assembly Cup Bearing Loose rings between bushing and con...
Page 18: ...n a container of clean petroleum solvent or similar cleaner TETROCHLORIDE has become badly oxidized it may be necessary to use alcohol type used for thinning shellac to remove it Ordinarily by agitati...
Page 19: ...tant surface coating replace runner when surface coating has been penetrated Its electrical operation 2 1 2 3 The contacts should be 3 4 Check the stationary arc contacts to assure that the arcing con...
Page 20: ...strated asshown in Figure 19 8 The arc chute sides 6 Figure 19 can also be separated for inspection i 9 On the 6 design do not disassemble the muffler assembly 4 Figure 18 ft REPAIR AND REPLACEMENT Th...
Page 21: ...y Bolts Assembly Bolt Upper Interrupter Support Assembly Bolts Upper Insulation Side Shield Assembly Bolts Lower Interrupter Support Assembly Bolts Assembly Bolt 13 2 14 15 if 3 16 4 13 5 f 3 6 7 17 5...
Page 22: ...ooler 9 Lower Arc Runner 10 Lower Insulation 11 Lower Arc Runner Spacers 12 Lower Arc Runner Assembly 13 Lower Coil Connection I i j i Fig 19A 8021965 5 Design Fig 19 Interrupter Assembly with Side Re...
Page 23: ...stud platefrom contact support remove two bolts 6 5 Reassemble in the reverseorder make sure locking plates are properly re assembled with bolts 8 B Movable Arcing Contact 14 Figure 23 1 Remove the as...
Page 24: ...olt 9 Stud for Mounting Arcing Fingers 10 Stationary Arcing Contact Assembly 11 Spring Baffle 12 Insulating Plate 7 8 9 10 11 12 13 14 F 15 i C Stationary Primary Contacts 9 Figure 24 1 Compress the c...
Page 25: ...igure 24C 8034469 Method of Installing Primary Contact Springs Using a Spring Compressor Figure 24 6 Spring 7 Contact Support 1 Spring Guide 2 Compressor Nut 3 Spring Compressor 8 Stop Plate 9 Station...
Page 26: ...ange of the rear bushing being removed and lower the bushing assembly NOTE Shims may be found between the breaker mounting plate and the bushing mounting flange on some or all bolts These shims are fo...
Page 27: ...the latch checking switch 7 Figure 12 when furnished remove the two mounting screws and disconnect the lead wires Reassemble in the reverse order and check the switch adjust ments as explained under A...
Page 28: ...ey and check shaft for burrs 5 Remove shaft out left side of frame 6 Reassemble in reverse order using the cor rect number of washers and spacers topro perly locate the parts 7 Rotate the mechanism th...
Page 29: ...dentical to the original parts since improvements are made from time to time The parts which are furnished however will be interchangeable The listed terms Right and Left apply when facing the mechani...
Page 30: ...0 Hz 230 V AC 60 Hz 48 V DC 15 1 6 j 006174582G001 006174582G015 006174582G002 006174582G010 006174582G014 006174 582G 034 0456A0866P005 0456A0866P006 y 0161A4231P001 0137A9252P001 0161A4241P001 0161A...
Page 31: ...ll 9 Movable Primary Contact 3 0137A9164P003 23 1200 All 10 Movable Primary Contact Movable Primary Contact 3 0137A9164P004 23 1200 All 10 0137A9164P003 3 23 10 1200 A Movable Primary Contact 0137A916...
Page 32: ...1 GENERAL ELECTRIC COMPANY SWITCHGEAR BUSINESS DEPARTMENT PHILADELPHIA PA 19142 I GENERAL ms ELECTRIC j s Ml V V i 2 80 7 69 Courtesy of NationalSwitchgear com...
