This report presents the results of discussions during and work subsequent to a Workshop on Quench Analysis and Power Supply Operation held at the SSC-CDG on April 1-4, 1985. The major portion of this volume addresses quenches in the Design C and D magnets, as described in detail in Appendices A through H. Some work has been carried out on the power supply operation and the appropriate control philosophy as described in Appendices I through K. Further work will be required for a complete understanding of the quenches and of power supply operation, in particular of the response under transient conditions. A list of participants is included as Appendix L. The results of the appendices are presented in the main test of the report along with enough of the figures to verify the conclusions. Some of the effort on power supply operation can be found in the Commissioning and Operations Workshop report, SSC-SR-1005.