Kyle® Distribution Switchgear Application Brief Standardization with Kyle® Type L Reclosers Results in Economic Savings Bob Simmons, Field Operations Supervisor, at Illinois Power states, “We have been a customer for many years and we have found it cost effective to purchase Cooper products.” Recently Illinois Power has initiated a standardization effort to effectively operate its distribution system, while providing a high level of distribution system reliability and holding down costs. Single-phase hydraulic reclosers were an integral factor in the standardization effort. "Fuse savings" on the laterals were achieved by using single-phase reclosers throughout the system. Temporary fault protection has many benefits to Illinois Power: • Increasing overall system reliability by shortening duration of system outage (SAIDI). • Increasing fault sensitivity by using lower minimum trip values (smaller coil sizes) compared to backup devices. “We recognized savings when we looked at our emergency requirements and five-year change-out maintenance schedule. Ongoing savings are worthwhile with the L reclosers.” Bob Simmons, Field Operations Supervisor, Illinois Power Next, Illinois Power evaluated its system fault devices and determined that a significant portion of their 15 kV system has available fault current below 4000 Amps. The objective of evaluating cost and performance resulted in the standardization of the Type L recloser, rated for 4000 Amps interrupting rating for 14.4 kV systems. The selection of series coils down to 25 Amps with an interrupting fault current/series coil ratio of 60 provides ample interrupting ratings for lightly loaded feeders. The completely self-contained hydraulic mechanism requires no external AC power batteries for complete operating performance. Kyle® Type L Recloser. • Preventing tempoBased on the low fault currary faults from evolvrents, product capabilities, ing to permanent overall maintenance program, and initial costs of other faults by quickly clearing the temporary fault. alternatives, the Type L recloser was selected as the • Reducing momentary outages (SAIFI) by using best option to improve reliability in the economic value single-phase reclosers on laterals to provide model. "fuse savings" rather than using substation breakers/reclosers for temporary fault protection. • Clearing temporary faults has the least amount of impact to their distribution systems or their customers as high magnitude faults can be cleared in 2–3 cycles. • Simplifying coordination with small downstream fuses and upline three-phase reclosers. Simmons comments, “We are standardizing, centralizing, and simplifying to make our business better.” Kyle® Distribution Switchgear • Substation Breakers • Substation Reclosers • Line Reclosers • Sectionalizers • Padmount Reclosers • Expanded Website Support at www.cooperpower.com • Software Training • Interface Software Downloads • Expanded Literature Database • E-mail Help-Site • Cooper Power Systems Newsletter E-mail • Microprocessor-Based Controls • Capacitor Switches • General Purpose Switches • Distribution Automation Switches • Transfer Packages • Padmount Switches • Subsurface Switches • Padmount Fault Interrupters • Subsurface Fault Interrupters • Specialized Hands-On Training Classes • Factory and Regional Authorized Service Shops • Worldwide Field Service • Switchgear Support Group • 1-800-497-KYLE • 1-800-497-5953 After 60 years of continued customer service growth, Kyle® has an unmatched history as the leader in the distribution switchgear industry. Even as we look to the future, we remain committed to that legacy. Innovative Products Exceptional Customer Service Contact your Cooper Power Systems Representative for additional information. The Quality System at Cooper Power Systems, Kyle Distribution Switchgear is ISO 9001 certified. ©2002 Cooper Industries, Inc. Kyle® is a registered trademark of Cooper Industries, Inc. Bulletin 02040 • October 2002 • New Issue P.O. Box 1640, Waukesha, WI 53187 USA Phone: 1-262-524-3300 Fax: 1-262-524-3313 www.cooperpower.com KGF 10/02