The present invention is a method and system of load balancing in a group of one or more servers connected to one or more subnetworks. The two towers are mounted in parallel between the upper and lower air valves and respectively filled with a drying agent. The first and second knit plies are made from an endless yarn and have respective orientations different from each other. If any one of the first, second and third output signals occurs, a trip signal is generated and directed to the associated circuit breaker.