DC Analysis Discussion
The need for direct current (dc) power system analysis of emergency standby power supplies has steadily increased during the past several years in data processing facilities, long distance telephone companies, and generating stations.
DC emergency power is used for circuit breaker control, protective relaying, inverters, instrumentation, emergency lighting, communications, annunciators, fault recorders, and auxiliary motors.
The analysis may include Battery (UPS) Sizing, Load Flow, & Short Circuit Analysis, and evaluating all loading conditions for DC duty cycle loads and AC emergency loads.
Compliance: IEEE std. 485, 1115, 399, 946, and IEC std. 61660.