Direct Powering of the 200-GeV Synchrotron Magnets from the Utility System

The main magnet system of the 200-GeV synchrotron of the National Accelerator Laboratory will be directly powered from the utilities without the use of local energy storage. The utility connections, power supply arrangement, and control philosophy have been adjusted to accommodate the difficulties generated by the direct connection. A system analysis was performed to ascertain if any stability or utility-line disturbance would be generated by the connection. Sophisticated controls will be utilized to minimize the effect of utility-line variations on the accelerator regulation. The result is a total system with no apparent degradation in the performance of the accelerator or the utility system.