Schneider Electric offers a comprehensive set of Square D engineering services associated with electrical distribution systems, energy and power management systems, and energy efficiency. Square D power system automatic controls includes the design and integration of programmable controllers and power system hardwire interlocking to align with customer needs for controlling energy costs or increasing power system reliability. Controls are typically coupled with supervisory software functions tailored to provide user interaction, digital alarming for extremely fast response, and graphical animation. Automatic throwover schemes provide automatic selection of available utility or generator sources to maintain service continuity to connected loads. Schemes include utility main-tie-main, main-main, open transition, synchronized momentary open transition, utility-generator schemes, momentary closed transition, extended closed transition (ramped load control), and maintained parallel (import/export control). Load shedding schemes can be implemented to control peak demand levels or to ensure service continuity to critical loads. Also, breakers can be selectively opened as needed according to user defined priorities, based on monitored power demand values. Load shedding schemes include frequency based, load reduction, demand control, or peak shaving. Load preservation systems are fast acting, sophisticated control systems designed to stabilize critical power systems to the greatest extent possible by monitoring frequency and power sources from utility plus generation capacity versus total circuit load, then dynamically determining the prioritized load trip sequence for non-critical loads so as not to overload generators when separation from utility occurs. Systems have been designed with high speed load shed, pre-armed shedding schemes, GPS time synchronization, and sequence-of-events recorded events (within 1 ms). Square D's engineering services solution specialists can work with clients to design or upgrade an existing system to best achieve the client's energy and power management objectives and informational needs. With expertise in electrical systems, communications, and automatic control systems, Square D can integrate, install, and commission a client's system for optimal performance. They offer system design, custom graphical interfaces, system integration, turnkey project management, startup and commissioning, and on-site training.