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GE AM-13.8-500-5A, Instructions Manual

The GE AM-13.8-500-5A is a high-quality electrical transformer used for industrial applications. Ensure safe and optimal usage by referring to the comprehensive Instructions Manual available for free download from our website. Access the manual instantly to understand the product's features, installation process, and maintenance guidelines.

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Summary of Contents for AM-13.8-500-5A

Page 1: ...13 8 500 5C AM 13 8 500 5CB AM 13 8 500 5H AM 13 8 500 5HB CONTENTS 1 Introduction Receiving Handling 2 and Storage 2 Installation Description of 4 Operation 7 Adjustments 12 General Maintenance Renewal Parts 30 SWITCHGEAR DEPARTMENT GENERAL m VM j ELECTRIC PHILADELPHIA PA of NationalSwitchgear com ...

Page 2: ... r Courtesy of NationalSwitchgear com ...

Page 3: ...g life 0 magne blast breaker Is available In a number of current Refer to the breaker nameplate for the complete rating mation of any particular breaker imposed on the breaker must not exceed its rating nor should it be called upon to operate at voltages or currents greater than those given on the nameplate Since this book is written to cover several ratings of breakers that are of the same genera...

Page 4: ... should be carefully protected against condensation pre ferably by storing it in a warm dry room since water absorption has an adverse effect on the insulation parts Circuit breakers for out door metal clad switchgear should be stored in the equipment only when power is available and the heaters are in operation to prevent condensation 2 The breaker should be stored in a clean location free from c...

Page 5: ...er should not be operated electrically until It has been operated several times manually to insure freedom of action At this time also check the following adjustments Refer to page 7 Refer to page 7 Refer to page 7 a Primary contact wipe b Arcing contact wipe e Primary contact gap DO NOT WORK ON EITHER THE BREAKER OR MECHANISM UNDESS THE CLOSING SPRINGS ARE BLOCKED AND THE OPENING SPRINGS HAVE BEE...

Page 6: ... electrically by the metal clad or remote relaying and mechanically by the manual close and trip levers on the breaker All secondary connections from the breaker to the metal clad unit are made through the coupler l Fig 1 A positive interlock 2 Fig 3 and interlock switch 2 Fig 1 are provided between the breaker and metal clad unit to prevent raising or lowering of the breaker in the unit while in ...

Page 7: ...rlock switches 6 are released and the driving pawl is raised from the ratchet wheel surface This allows the motor and driving mechanism to coast to a natural stop expending all residual energy During the time the springs are being compressed a relay 6 Fig 6 locks the closing power circuits open and the relay will remain ener gized until the springs are fully charged and the control contacts are re...

Page 8: ...y from the arcing contacts The interrupter contains three up per blowout coils and three lower blowout coils each Individually con nected in series with its respective section of arc runner As the arc is forced outward along the diverging arc runners the magnetic field is progressively increased with the addition of each coil in the cir cuit By v At the same time the arc is being forced into the a...

Page 9: ...e correctly adjusted the clearance between the contact arm 6 and the buffer block should be l l6 or greater as shown in Fig 8 breaker is fully closed Arcing Contact Wipe Refer to Fig 8 Close the breaker until the arcing contacts just touch This can be determined with the use of a circuit continuity tester such as a light indicator or bell set In this position the gap between the stationary primary...

Page 10: ...am l6 rotated so that the prop pin 13 is at its maximum height over the prop 14 the clearance between the prop and prop pin should be l l6 to 5 32 No adjustment is pro vided and a visual inspection is usually all that is required Release Latch Wipe Refer to Fig 6 The wipe between the release latch 3 and roller 2 should be 3 l6 to 1 4 If re setting is required loosen set and re tighten adjustment n...

Page 11: ...ng load against the driving members With the mechanism un blocked hand charge the closing springs with the manual charging wrench until they are slightly more than half charged Slowly rotate the charging wrench until the driving pawl 5 Pig 4 has traveled through Its return stroke and check the maximum clearance between the pawl and the ratchet tooth Rotate the charging wrench until the driv ing pa...

Page 12: ... plus or minus l l6 To change this adjustment add or remove washers 2 Auxiliary Switch Linkage Furnished Special on Breakers With A Suffix Refer to Fig 14 With the breaker in the open position the distance from the centerline of the front bushing 1 to the center of the switch operating pin 2 should be 12 r as shown To change this set ting loosen the locking bolts 6 remove the pin 4 and turn the cl...

Page 13: ...ions 6 See that any place where the surface of the paint has been damaged is repainted immediately 7 Check the trip coil plunger and the release coil plunger to see that they move freely Opening and Closing Speeds The closing speed of the arcing contact of the breaker should be a minimum of 11 feet per second This represents the average speed of the movable arcing contact from a point 1 before the...

Page 14: ...rely energizing the closing or trip coil circuit Control switches are provided for this purpose on the metal clad unit It is also possible to trip or close the breaker manually by pressing the manual trip lever 11 Fig 2 or the manual close button 7 Before the breaker is finally raised into position in the metal clad unit rub a small amount of G E contact lubricant D50H47 on the silver ed portion o...

Page 15: ...there Is evidence of damage or if the arc chutes are removed for any reason When in specting an arc chute it should be disassembled and the following points noted 1 Scale formed over the surface of the arc chute must not be removed but loose particles collected in the chute should be blown out 2 Cracks which have formed in the fins of the arc chute are to be ex pected In ceramic materials of this ...

Page 16: ...oving the box barrier the movable and stationary primary contacts and the movable arcing contacts can be inspected The stationary arc ing contacts can be inspected only after removing the arc chute assem bly as explained under REPAIR AND REPLACEMENT If the contacts are burned or pitted they should be made smooth with a fine file After completing inspection of the contacts check the contact adjust ...

Page 17: ... insulation LUBRICATION In order to maintain reliable operation it is important that all cir cuit breakers be properly lubricated at all times Most of the bear ings and rolling surfaces utilize a new type of dry lubrication that will require no maintenance and will last the life of the equipment Only few bearings and surfaces listed in the chart Fig 20 require lubrication These have been properly ...

Page 18: ... similar cleaner and using a stiff brush Do not remove the bearings from the links DO NOT USE CAR BON TETRACHLORIDE t V The hinge of the primary contact arm 24 Fig 7 should be disassembled cleaned and lubricated with G E D50H47 lubricant at general overhaul periods The main shaft bearings 24 Fig 5 and the driving pawl lever bearing should be removed cleaned and lubricated with G E D50H15 lubricant...

Page 19: ...be removed After re moving the shaft and inner race the bearing can usually be cleaned satisfactorily with petroleum solvent or a similar cleaner and a stiff brush Follow the procedure outlined above using a light machine oil and G E lubricant D50H15 before reassembling the inner race and shaft Rolling Surfaces A number of rolling and rubbing surfaces in the mechanism have been lubricated with a b...

Page 20: ...ng or replacement Do not grease the arcing contacts under any circumstances 6 Check the breaker and mechanism adjustments as summarized under INSPECTION AND TEST The necessary readjustments should be made as described under ADJUSTMENTS 7 The breaker and operating mechanism should be carefully inspect all cam latch ed for loose nuts bolts retaining rings etc and roller surfaces should be inspected ...

Page 21: ...erely burned and or eroded from arc ac tion should be replaced NOTE Fine cracks may develop in the fins of the arc chute sides This is to be expected with ceramic materials when sub jected to the high heat of an arc and may be disregarded unless they are long and present a possibility of fin sections breaking completely off Small broken corners on the exhaust end of the arc chute will not interfer...

Page 22: ... trip failure to close or latch closed closing springs will not recharge and overheating The following is a brief outline showing particular types of distress that might be encoun tered together with suggestions for remedying the trouble Failure to Trip 1 Mechanism binding or sticking caused by lack of lubrication REMEDY Lubricate complete mechanism 2 Mechanism binding or sticking caused by being ...

Page 23: ...Replace contacts if necessary 3 4 Overloading REMEDY Replace breaker with one of adequate rating for present or future load or re arrange circuits so as to remove excess load Primary connections of inadequate capacity REMEDY Increase size or number of conductors or remove excess cur rent 5 6 Loose connections or terminal connectors REMEDY Tighten 7 Ambient temperature too high REMEDY Relocate in a...

Page 24: ...ig 16 5 Remove the lower mounting support l6 by removing the assembly bolts 17 Fig 16 and the connection nut 7 Fig 18 6 At this point the fiber side shields 4 Fig 18 arc runner assembly 2 can be removed 7 Further disassembly of both the upper and lower arc runner assemblies can be done by removing the various screws and 1 4 assembly bolts not illustrated as shown in Fig 17 8 The arc chute sides 6 ...

Page 25: ...he back of the con tact support 4 Fig 22 4 Tighten the supporting bolts 2 and 9 Fig 19 These bolts serve as both the electrical and mechanical connections between the bush ing and the arc runners 5 Check that the movable arcing contact 4 Fig 19 passes between the probes on the upper arc runner 5 Fig 17 without touching Contacts Open the breaker and remove the box barrier and arc chutes as previous...

Page 26: ...ent spring from slipping out of the compressor 4 Place washer not shown on guide on top of spring place top of guide into hole in spring retainer 4 and the round end of spring guide in cutout in primary finger Fig 23C 5 Hold spring assembly firmly in place and remove spring compressor C Movable Arcing Contact 7 Fig 24 1 Remove the assembly bolts 8 2 Reassemble in reverse order D Movable Primary Co...

Page 27: ...nd reassembled one at a time Also before removing any one bushing measure the dis tance from that particular bushing to adjacent bushings in both direc tions so that it may be reinstalled in the same location It is also possible to remove and reassemble three bushings at one time If this is preferred alignment of the bushings may be accomplished by placing the breaker in a de energized spare metal...

Page 28: ...rm 4 and replace pin ll The contact sur faces at the hinge point of the contact blade and bushing should have a thin coating of D50H47 grease 6 Check all contact adjustments as outlined under ADJUSTMENTS INTERLOCK SWITCH 1 To remove the interlock switch 3 Fig 10 remove the two mounting screws and disconnect the lead wires Reassemble in the reverse order and check the switch adjustments as explaine...

Page 29: ...t removed Reassemble the parts in the reverse order Be sure the latch spring is properly Installed and the latch is aligned in the center of the latch roller Check latch adjustment as described under ADJUSTMENTS 1 2 3 4 5 6 7 TRIP LATCH ROLLER BEARING 1 Remove 2 cotter pins at ends of shaft 8 Fig 12 2 Partially remove shaft out right side of frame until latch roller 6 is free 3 Reassemble in rever...

Page 30: ...ibed under DRIVING PAWL ADJUSTMENTS CAM 1 Remove 2 set screws from ratchet wheel 3 Fig 3 and remove wheel from main shaft 8 2 Remove 2 set screws from cam 12 Fig 1 3 Remove prop reset spring 10 Fig 2 4 Remove 2 set screws from cam l6 Fig 5 and move cam to the right on the shaft as far as it will go Slide the shaft to the left until key is fully exposed Remove key and check shaft for burrs 5 Remove...

Page 31: ...ove the spring release coil 5 Fig 6 proceed as follows 1 Block the closing springs as described in INSTALLATION 2 Remove the left hand closing spring as described in CLOSING SPRINGS below 3 Remove two mounting bolts 17 coll support 18 and spacers 4 Cut wires at the butt connectors and remove coil 5 Replace the coil and the correct number of fiber spacers before bolting support 6 Butt connect wires...

Page 32: ...fficient renewal parts be carried in stock to enable the prompt replacement of any worn broken or damaged parts A stock of such parts minimize service interruptions caused by break downs and saves time and expense When continuous operation is a primary consideration more renewal parts should be carried the amount depending upon the severity of the service and the time required to secure replacemen...

Page 33: ...and the mechanism 2 Specify the quantity catalog number if listed reference number if listed and description of each part ordered and this bulle tin number 3 Standard hardware such as screws bolts nuts washers etc is not listed in this bulletin Such items should be purchased lo cally 4 For prices refer to the nearest office of the General Electric Company L v 31 of NationalSwitchgear com ...

Page 34: ... Contact Finger Spring Primary Contact Finger Spring Primary Contact Finger Spring Primary Contact Finger Primary Contact Finger Upper Shield Insulating Plate Lower Shield Movable Arcing Contact Movable Primary Contact Movable Primary Contact Movable Primary Contact Movable Primary Contact Upper Runner Insulation Lower Runner Insulation Lower Shield Motor 48 VDC Motor 110 VDC 125 VDC Motor 220 VDC...

Page 35: ...15 VAC Spring Release Trip Coil 230 VAC Switch Normally Open Switch Normally Closed Auxiliary Switch Closing Latch Spring Prop Spring Pawl Spring 11 All 1 2 All 2 All All 11 2 6 5 2t 11 2 All All 6 5 2 11 2 All All 6 5 2t 11 All All 2 6 5 2 11 2 All All 6 5 11 2 2 All All 6 5 2 11 2 All All 6 5 6 10 5 All All 6 10 All All 1 11 9 All All 1 6 16 All All 1 C v 13 1 11 All All 3 3 1 All All Check conn...

Page 36: ...es Auxiliary Switch Latch Checking Switch Charge Discharge Indicator Power Switches Closing Springs Motor Fuses Closing Latch Roller Closing Latch Switch Cam 1 1 Trip Coil 2 Open Close Indicator 3 Auxiliary Switch 4 Counter 5 Trip Latch 6 Charge Discharge Indicator 7 Close Button 8 Motor 9 Fuse 10 Prop Spring 11 Trip Lever 2 3 4 5 6 7 8 9 10 11 12 v 34 of NationalSwitchgear com ...

Page 37: ...ng Spring 8 Manual Charging Wrench 9 Support Bolts 10 Charge Discharge Indicator Fig 3 Right Side View ML 13 1 Latching Pawls 2 Positive Interlock Roller 3 Ratchet Wheel 4 Eccentric 5 Fuse 6 Closing Spring 7 Main Shaft Bearing 8 Cam Shaft 9 Opening Spring 10 Guide Block 11 Lower Spring Pin 12 Upper Spring Pin CO 1 CO 8 CO to rt 35 of NationalSwitchgear com ...

Page 38: ...m Shaft Bearing Pig 5 Sectional Side View of Mechanism 10 Trip Latch Roller Support 11 crank Shaft 12 Cranks 13 Prop Pin 14 Prop 15 Drive Shaft 16 Cam 17 Check Nut 1 Handle 2 Trip Coil Support 3 Trip Coil 4 Trip Armature 5 Prop Reset Spring 6 Cam Follower Roller Trip Shaft Trip Latch 9 Trip Latch Roller l r 3 N co 00 I i yo 00 Courtesy of NationalSwitchgear com ...

Page 39: ...6 Closing Latch Spring 17 Release Coil Bolts 18 Release Coil Support 19 Closing Latch Shaft 20 Switch Mounting Bracket 14 15 9 t 2 vo 10 ST 3 4 00 14 o CO 19 4 VO 17 16 bO 11 20 12 5 18 13 V l 7 o 01 n in o 1 i ri 5 CT 1fe r H 2 CO 2 3 I 3 I bO 4 v H 4 6 ft T Q 5 5 Primary Contact Wipe Arcing Contact Wipe Fig 8 Contact Adjustments 4 Stationary Arcing Contacts 5 Movable Arcing Contacts 6 Contact Ar...

Page 40: ...Primary Contact 23 Movable Contact Arm Assembly 24 Cup Bearing 25 Booster Tube and Piston 26 Front Vertical Barrier 27 Check Nut 28 Connection Bar 29 Booster Cylinder Fig 7 1 Box Barrier Catch 2 Box Barrier 3 Arc Chute 4 Arc Runner Upper 5 Blow Out Coil Upper 6 Blow Out Core Upper 7 Movable Arcing Contact 8 Arc Runner Lower 9 Blow Out Coil Lower 10 Blow Out Core Lower 11 Pole Pieces 12 Front Bushi...

Page 41: ... Contacts 7 Contact Arm 8 Yoke 1 Operating Rod 2 Operating Rod Pin 3 Adjusting Nut 4 Check Nut y V r A CO o CO o r V to V MMbim Pig 10 Positive Interlock Switch 1 Positive Interlock Shaft 6 Switch Support 2 Switch Arm 3 Interlock Switch 4 Switch Support 5 Auxiliary Switch 7 Latch Checking Switch 8 Switch Arm 9 Trip Shaft 39 y of NationalSwitchgear com ...

Page 42: ... Open Close Indicator 9 Auxiliary Switch 10 Switch Arm 11 Latch Set Screw 12 Cotter Pin 13 Prop Spring Trip Coil t n 1 1 H m 1 Switch Support 2 Latch Checking Switch 3 Switch Arm 4 Trip Latch 5 Reset Pin Stop 6 Latch Roller 7 Latch Roller link 8 Latch Roller Pin ro i O VJ1 03 fO o AT x ki S 4o y of NationalSwitchgear com ...

Page 43: ... H D 3 O 4 i r 3 hd pj So ct htf ct p F oq 3 D Oq 3 M hj 5 H 3 4 H 3 ct ro a i a H O 3 H O H F r S Q VJ1 4 F ct oo ro H o 3 O Q TJ 3 M H fl I 3 i r H w n 3 3 H o 3 0 w to 0 3 fl 3 l 3 3 4 ct H H ct ct F P W P H F H 00 00 4 4 Courtesy of NationalSwitchgear com ...

Page 44: ...ual Close Button 1 Assembly Bolts 2 Assembly Bolt 3 Upper Pole Pieces 4 Lower Pole Pieces 5 Rear Brace 6 Assembly Bolt 7 Assembly Bolt 8 Lower Brace 9 Assembly Bolts 10 Assembly Bolts 11 Assembly Bolt 12 Assembly Bolts 13 Upper Mounting Support 14 Side Brace 15 Assembly Bolts 16 Lower Mounting Support 17 Assembly Bolts 18 Assembly Bolt 19 Upper Insulation H H 1 G 00 O w o VO ro vo 42 of NationalSw...

Page 45: ...rs 11 Lower Coil Connection 12 Lower Insulation in UD C rH 04 O CO to ft Fig 17 Arc Chute Assembly With Side Removed V t i CO cr b CO cc 1 Upper Mounting Support 2 Upper Arc Runner Assembly 3 Upper Arc Runner 4 Side Shield 5 Lower Arc Runner Assembly 6 Lower Coil Connection 7 Connection Nut o as Q _ OJ CL z o 60 CO o 2 CO O OJ rH QC i 60 tu o ft T o y Fig 18 Front View Arc Chute Assembly VL 43 y o...

Page 46: ...te Brace 7 Support Bracket 8 Lower Arc Chute Support 9 Lower Supporting Bolt 10 Upper Horizontal Barriers 11 Lower Horizontal Barriers 12 Stationary Arcing Contacts 13 Arc Chute Lifter Bolt 14 Handle 15 Trolly 16 Arc Chute Lifter 17 Grappling Hooks 18 Lifting Bolt 19 Arc Chute mmm MflpP S H JSSil mmBto m SdSi 09 C ro iC ml HP 00 mmmam o y I ro vo A V m m 00 s U Fig 21 Arc Chute Fin Spacing t Vv y ...

Page 47: ...rm No lubrication required Wipe clean and apply D50H4 Roller and Needle Bearings Light applica tion of machine oil SAE 20 or SAE 30 Clean per instructions and repack with D50H15 lubricant Ground surfaces such as cams ratchet teeth etc Surfaces coated with Mc No lubrication required No lubrication required Ground surfaces such as latches rollers prop etc Wipe clean and apply D50H15 lubricant Wipe c...

Page 48: ...ft Pig 23 Method of Installing Primary Contact Springs re CO Using a Spring Compressor w 6 Spring 1 Spring Guide 00 N o 7 Contact Support 2 Compressor Nut u 8 Stop Plate 3 Spring Compressor 4 Spring Retainer tr 9 Stationary Primary o CD Finger 5 Assembly Bolts of NationalSwitchgear com ...

Page 49: ...olts 7 Movable Arcing Contact 8 Assembly Bolts 9 Connection Bar 10 Piston Assembly 11 Hinge Pin 12 Buffer 1 Rear Bushing 2 Guide and Support for Arc Chute 3 Bolts for Contact Support 4 Contact Support 3 Bolt for Flexible Braid 6 Mounting Bolt 7 Flexible Braid 8 Connection Bolt 9 Stud for Mounting Arcing Fingers 10 Stationary Arcing Contact Assembly 11 Spring Baffle 12 Insulating Plate o t H in cu ...

Page 50: ...icago 60680 _ 840 S Cana St Peoria 416H 7008 N E Perry Ave Rockford 6T108 4223 East State St Springfield 62701 38 3 Center St t NEW MEXICO v f AIbuquerque 87108 w 120 Madeira Dr N E 607 E Adams St t NEW YORK t Albany 12201 8 Colvin Ave f Binghamton 13902 19 Chenango St Buffalo 14202 625 Delaware Ave 570 Lexington Ave 89 East Ave Syracuse 13201 3532 James St 1001 Broad St P O Box 308 P O Box 1038 3...

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