Group CBS
Derreck Barnhill is an operations manager and president at Solid State Exchange & Repair Co. since September 1997, specializing in the sales and repair of industrial electronics, including circuit breaker trip units, relays, and multifunction relays. Additionally, Barnhill has been a partner at Derafi Technology since August 2004, overseeing daily operations, and serves as a research engineer at Group CBS, Inc., focusing on the research and development of industrial controls. Previously, Barnhill worked as an electronics engineer at Del Norte Technology, designing electronic systems for GPS equipment, and served as a noncommissioned officer in the United States Air Force, where responsibilities included repairing and operating auto-tracking radar systems. Barnhill holds a Bachelor of Science in Electrical Engineering from The University of Texas at Arlington.
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Group CBS
Headquartered in Addison, Texas, Group CBS has operations throughout the U.S. and in the U.K. which provide premier products and unparalleled capabilities and services to the industrial, utility, electrical distribution, and repair markets. If it's electrical... we have it! We're the one-stop for all your electrical apparatus sales, service and engineering requirements. ● Largest inventory of new, surplus or reconditioned low and medium voltage power equipment and replacement parts available in North America. ● Servicing of Class 1E nuclear rated switchgear and circuit breakers in compliance with 10CFR50 Appendix B. ● Modern shop facilities with skilled engineers and technicians. ● Comprehensive quality repair, rebuild, retrofit, retrofill, and life extension capabilites. ● Emergency or scheduled electrical testing, maintenance and troubleshooting at your facility. ● Power engineering services such as short circuit and coordination studies, arc flash hazard analysis, design-build services. ● Custom manufacturing: engineered, reverse engineered and remanufacturing of obsolete parts. ● Replacement electrical contacts for load tap changers, circuit breakers and other switchgear. ● Remote racking systems for automatic racking of circuit breakers from a remote location. ● Remote switch operators - actuators for automatic opening and closing circuit breakers and other control switches from a remote location. ● Replacement vacuum interrupters for contactors and circuit breakers. ● Vacuum Interrupter test equipment to determine the condition of circuit breaker and contactor vacuum interrupters. ● Indoor dry type and cast coil power transformers to 4000 kVA in stock. ● Millions of replacement parts and assemblies. ● We rent most equipment in our vast inventory.