1 Technical Requirements

Self-balancing primary differential overcurrent (induction motors greater than 1,500 hp) Phase current unbalance (induction motors greater than 1,500 hp) 460 V motors fed from MCC’s. Phase overcurrent (instantaneous and timed) Ground timed overcurrent (motors 20 hp and above) Panels, transformers, heaters, and miscellaneous loads fed from MCC’s ................
................