Our safety people are grappling with the PPE required to work on our third and fourth rail dc power systems used in rapid transit systems. The fault levels in the dc switchgear is "typically" around 30,000 Adc with a normal operating voltage of 750 Vdc. In the substations the clearing times for...
Does anyone know of a GOOD software package for short circuit calculations? Our company bought EDSA some time ago (hey, the sales-guy made it look so friendly)and we have since found that it has a pathetic "users manual" thus requiring several thousands of extra dollars for training.
