{ "item_title" : "An Introduction to Relays and Controls for Electric Power Distribution", "item_author" : [" J. Paul Guyer "], "item_description" : "This publication provides introductory technical guidance for electrical engineers interested in relays and controls for electrical distribution systems. Here is what is discussed:1. RELAY FUNCTIONS2. RELAY FUNDAMENTALS3. RELAY CONSTRUCTION4. RELAY MAINTENANCE PERIODS5. RELAY GENERAL FIELD INSPECTION6. RELAY PERFORMANCE TESTS7. COMMON ELECTROMECHANICAL RELAY TESTS8. RELAY TEST EQUIPMENT9. RELAY REPAIRS10. CONTROL FUNCTIONS11. PREVENTIVE MAINTENANCE AND INSPECTIONS OF CONTROLS12. TROUBLESHOOTING CONTROLS.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/97/342/157/1973421577_b.jpg", "price_data" : { "retail_price" : "47.95", "online_price" : "47.95", "our_price" : "47.95", "club_price" : "47.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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