S280-75-2

1 Figure Type ME electronic recloser controlThese instructions do not claim to cover all details or variations in the equipment, procedure, or process described, nor to provide direction formeeting every possible contingency during installation, operation, or maintenance. When additional information is desired to satisfy a problem notcovered sufficiently for the user s purpose, please contact your Cooper Power Systems sales 2002 Supersedes 12/88 ReclosersType ME Electronic Recloser Control,Form 3 and 3 AMaintenance Instructions - Basic1 CONTENTSS afety Information .. 2 Introduction .. 3 Description .. 3 Operation .. 5 Periodic Field Inspection and Maintenance .. 6 Servicing .. 8 Circuit Logic ..8 Plug-In Circuit Boards Function ..10 Battery Charging Board ..10 Phase Trip No. 1 Board ..11 Phase Trip No.

2 2 Board ..11 Ground Trip No. 1 and No. 2 Boards ..11 Output Board ..12 Diode Board ..12 Recloser-Reset Board ..12 Closing Coil Control Fuse ..12 Interchangeability of Boards Between Form 2,Form 3 and Form 3A Electronic Controls ..12 Troubleshooting and Testing ..13 Detailed Circuit Checks ..14 Input Circuits ..17 Internal dc Load Current Signal ..18 Internal Minimum Trip Signal ..19 Time-Current Characteristic Curves (TCC) ..20 Control-Recloser operation ..22 Major Control Damage ..29 Battery Charging ..31 Mechanical and Electrical Hardware ..35 Battery Maintenance ..35 Battery Specifications ..35 Maintaining Battery Charge ..35 Field Testing a Battery ..35 Shop Testing a Battery ..36 Appendix I ..37 Test Sheet ..37 Appendix II ..38 List of Electronic Recloser Maintenance Manuals ..38 Appendix III ..38 List of Electronic Control Accessory Manuals.

3 38 Appendix IV ..38 Service Parts List ..38 Appendix V ..41 Form 2 Connection Diagram ..42 Form 3 Connection Diagram ..44 Form 3A Connection Diagram ..4888936 KMAS280-75-2 Service Information2 TYPE ME ELECTRONIC RECLOSER CONTROLThe instructions in this manual are not intended as asubstitute for proper training or adequate experience inthe safe operation of the equipment described. Onlycompetent technicians who are familiar with this equip-ment should install, operate, and service competent technician has these qualifications: Is thoroughly familiar with these instructions. Is trained in industry-accepted high- and low-voltagesafe operating practices and procedures. Is trained and authorized to energize, de-energize,clear, and ground power distribution equipment. Is trained in the care and use of protective equipmentsuch as flash clothing, safety glasses, face shield,hard hat, rubber gloves, hotstick, is important safety information.

4 For safe instal-lation and operation of this equipment, be sure to readand understand all cautions and InstructionsFollowing are general caution and warning statementsthat apply to this equipment. Additional statements, relat-ed to specific tasks and procedures, are located through-out the INFORMATIONSAFETY FOR LIFEC ooper Power Systems products meet or exceed all applicable industry standards relating to product safety. We activelypromote safe practices in the use and maintenance of our products through our service literature, instructional trainingprograms, and the continuous efforts of all Cooper Power Systems employees involved in product design, manufacture,marketing, and strongly urge that you always follow all locally approved safety procedures and safety instructions when workingaround high voltage lines and equipment and support our Safety For Life mission.

5 !SAFETYFOR LIFE!SAFETYFOR LIFEThis manual may contain four types of hazardstatements:DANGER: Indicates an imminently haz-ardous situation which, if not avoided, willresult in death or serious : Indicates a potentially haz-ardous situation which, if not avoided, couldresult in death or serious : Indicates a potentially hazardoussituation which, if not avoided, may result inminor or moderate : Indicates a potentially hazardous situ-ation which, if not avoided, may result in equip-ment damage only.!!Hazard Statement Definitions!WARNING: This equipment is not intended toprotect human life. Follow all locally approvedprocedures and safety practices when installing or oper-ating this equipment. Failure to comply can result indeath, severe personal injury and equipment !DANGER: Hazardous voltage.

6 Contact withhazardous voltage will cause death or severepersonal injury. Follow all locally approved safety pro-cedures when working around high and low voltagelines and equipment. !WARNING: Before installing, operating, main-taining, or testing this equipment, carefully readand understand the contents of this manual. Improperoperation, handling or maintenance can result in death,severe personal injury, and equipment !WARNING: Power distribution equipment mustbe selected for the intended application. It mustbe installed and serviced by competent personnel whohave been trained and understand proper safety proce-dures. These instructions are written for such personneland are not a substitute for adequate training and expe-rience in safety procedures. Failure to properly select,install, or maintain this equipment can result in death,severe personal injury, and equipment !

7 s280 -75-23 Figure control Information S28O-75-2 covers basic maintenanceinstructions for the Type ME electronic control. The manualincludes a general description of the control, its operatingprinciples and instructions for periodic inspection and parts lists along with ordering information are includ-ed in Appendix introduction to the Form 3A, Type ME, electronic controlis available on video cassette (KSPV3); in this program thefunction of all standard operating and programming featuresis factory service department offers maintenance trainingcourses for Type ME controls. These classes, taught by ex-perienced service technicians, are held at the factory s in-housetraining facility. For additional information, contact your sales Kyle Type ME electronic recloser control (Figure 1 ) is com-prised of a number of programmable, solid-state electronic circuitsthat perform the command functions involved in automatic recloseroperation.

8 It is used to operate all Kyle electronically swing-out front panel contains the programming and operatingelements of the control (Figure 2). The upper, black portion4 Figure board on back of front panel mounts the individual printed circuit ME Electronic Recloser Control88938 KMAof the front panel contains the plug-in components and settingknobs for programming automatic recloser operation. Theswitches and indicators used for manual operation and serviceare grouped on the bottom, light portion of the front panel is backed by a printed-circuit tie board whichsupports and interfaces the plug-in circuit boards with otherrelated circuit components (Figure 3). Program-altering,remote control, indicating, and general convenience acces-sories can be added to further expand and enhance the appli-cation capabilities of the current flowing through the recloser is sensed by threeinternally mounted bushing-current transformers, one on eachphase.

9 When the phase current, or the zero-sequence (ground)current, exceeds its programmed minimum-trip value, theelectronic control initiates the programmed sequence ofrecloser tripping and reclosing operations. If the fault is tempo-rary, the control ceases to command recloser operations aftersuccessful reclose, and the control resets to the start of itsoperating sequence after a preset time delay. If the fault ispermanent, the control performs its complete programmedsequence of recloser commands and locks out with the reclos-er open. Once locked out, the control must be manually resetto the start of its operating sequence which simultaneouslycloses the timing plugs establish the time-currentcharacteristics for both phase and ground tripping. Two sets ofindividual timing curves provide dual timing for both phase operating sequence of an electronically controlled recloser under permanent fault operating sequence of an electronically controlled recloser under temporary fault the understanding of the terminology and the operat-ing sequences of an electronically controlled recloser isimportant to the rest of this maintenance manual, examplesof typical operating sequences of an electronically controlledrecloser under permanent fault (Figure 4) and temporaryfault (Figure 5) conditions are given.

10 The definition of theterms and callouts used in Figures 4 and 5 are: Minimum Trip Minimum trip is usually set at greaterthan 2 times (200%) the maximum expected load currentto help prevent nuisance tripping on inrush currents, whilestill being sensitive to low level faults. Over-Current Any current that exceeds the minimum-trip level of the control. Permanent Fault Any over-current condition that per-sists through the operating sequence of the control. Temporary Fault Any over-current condition that doesnotpersist through the operating sequence of the control. Home Position Position of sequence relay immediately after areset operation of the control. Reset operation can be eithermanual, by moving the Manual Control Switch to CLOSE , or automatic, after a temporary fault. Lockout Sequence-relay position when over-current is not cleared before the operating sequences of the control are exceeded; control and recloser are tripped and held open until manually reset with the Manual Control Switch, or remotely with one of the remote close accessories.