Sectionalizer Maintenance Manual

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1 Sectionalizers Type GWC Maintenance Instructions Service Information S70-- Figure. Type GWC sectionalizer. CONTENTS Safety Information. Hazard Statements. Safety Instructions. Additional Information. Operating Data.

Discrete apparatus and MV components available for Original Equipment Manufacturers (OEM) to incorporate in their own installations or for use in repair.

Basic Sectionalizer Ratings. Description of Operation. Electronic Control Circuit. Actuator Mechanism Operation. 4 Maintenance. 5 Frequency of Maintenance. 5 Battery Maintenance.

6 Battery Specifications. 6 Maintaining Battery Charge.

6 Field Testing Battery. 6 Shop Testing Battery.

7 Oil Condition. 8 Insulation Level Withstand Tests. 8 Operating Instructions. 8 Electrical Operation. 8 Manual Operation. 8 Test Procedures and Troubleshooting. 8 Test Circuit and Equipment.

9 Test Procedures. 9 Minimum Actuating Current. 9 Count Restraint. 0 Voltage Restraint KMA Number of Counts-to-Open. 0 Count Reset. 0 Inrush-Current Restraint.

Post Test Procedures. Current Transformers. Continuity Check. Ratio Test for Sensing CT s.

Polarity Test for Sensing CT s. CT Protection Board.

Shop Maintenance Procedures. 4 Contact Inspection. 4 Stationary Contact Assembly. 4 Contact Rod.

4 Contact Alignment. 5 Actuator Mechanism. 6 Electrical Components. 6 Trip Solenoid. 6 Closing Solenoid. 6 Motor Replacement. 7 Speed Reducer.

9 Service Parts Lists. 9 Bushings and Contacts. 0 Head and Tank Assemblies.

Operating Mechanism, Part. 4 Operating Mechanism, Part. 6 Speed Reducer.

8 Sectionalizer Control. 0 October 005 Supersedes /90 Printed in USA 2 Type GWC Maintenance Instructions! SAFETY FOR LIFE SAFETY FOR LIFE Cooper Power Systems products meet or exceed all applicable industry standards relating to product safety.

We actively promote safe practices in the use and maintenance of our products through our service literature, instructional training programs, and the continuous efforts of all Cooper Power Systems employees involved in product design, manufacture, marketing, and service. We strongly urge that you always follow all locally approved safety procedures and safety instructions when working around high voltage lines and equipment and support our Safety For Life mission.! SAFETY FOR LIFE The instructions in this manual are not intended as a substitute for proper training or adequate experience in the safe operation of the equipment described. Only competent technicians who are familiar with this equipment should install, operate, and service it. A competent technician has these qualifications: Is thoroughly familiar with these instructions. Is trained in industry-accepted high- and low-voltage safe operating practices and procedures.

Is trained and authorized to energize, de-energize, clear, and ground power distribution equipment. Ford Lgt 125 Manual. Is trained in the care and use of protective equipment such as flash clothing, safety glasses, face shield, hard hat, rubber gloves, hotstick, etc. Following is important safety information. For safe installation and operation of this equipment, be sure to read and understand all cautions and warnings. Hazard Statement Definitions SAFETY INFORMATION Safety Instructions Following are general caution and warning statements that apply to this equipment.

Additional statements, related to specific tasks and procedures, are located throughout the manual. DANGER: Hazardous voltage. Contact with hazardous voltage will cause death or severe personal injury. Follow all locally approved safety procedures when working around high- and low-voltage lines and equipment. WARNING: Before installing, operating, maintaining, or testing this equipment, carefully read and understand the contents of this manual. Improper operation, handling or maintenance can result in death, severe personal injury, and equipment damage.!

G0.0 This manual may contain four types of hazard statements:! DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.!! CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.