San Gabriel Dam
Butterfly Valve Actuator Rehabilitation, ANGELES NATIONAL FOREST, CA
KDC Systems provided electrical and control system expertise to remove and replace control panels and related electrical equipment which control the San Gabriel Dam butterfly valves for the County of Los Angeles. The dam controls flood water from the San Gabriel mountains and related reservoir utilizing (2) 123” butterfly valves, (1) 96” butterfly valve, (1) 51” butterfly valve, and the related hydraulic power unit. Electrical work included removing, procuring, and installing transformer and power distribution panels in a valve chamber ¼ mile inside mountain, installing a power feed and buss bar power rail for a new ¼ mile long crane hoist located inside the penstock tunnel, installing, terminating, and testing a 1/3 mile long fiber optic cable between the valve chamber and control house, wiring a new hydraulic power unit, and wiring all field devices and control panels (much of it located in confined spaces).
Control system work included designing, procuring, building, testing, and commissioning new control panels. complete with an Allen Bradley CompactLogix PLC and HMI control hardware, designing and commissioning a new 1/3 mile fiber optic cable link between the main PLC panel located in the valve chamber and a remote PLC panel located in the control house, and programming and commissioning butterfly valve control logic operation for the newly supplied butterfly valve control system. KDC provided drawings and as-builts for the entire system, as well as complete training for operations and maintenance personnel.