LM317T Voltage Regulator with Pass Transistor

(Joel Dingman): It's a good day to make electricity at Dry Fork Station. (Tom Stalcup): There it is. We just synced. The Dry Fork Station has been synced to the transmission grid. That means electricity is flowing from the plant for the very first time. Crews have dedicated a lot of time and energy preparing for major milestones like this one. It's all part of getting the plant ready for commercial operation. (Tom Stalcup): Friday morning we rolled the turbine for the first time. We had several valve tests we had to run; we had to test the emergency lube oil system. We had to test the emergency trip system. We did all of that over Friday and Saturday and towards the end of the day on Saturday, about half way through I guess, we started working on the AVR which is the auto voltage regulator. The auto voltage regulator is what controls the voltage on the generator, which is how the plant actually syncs to the grid. (Tom): Then we did a dummy synchronization. What we did is we left the disconnects, the line side disconnects open on the generator breaker and then we first manually synced, by closing the generator breakers, but it wasn't connected to the transmission system so it had no power output and then once we proved that then we proved the auto-synchronization. (Tom): "Let's roll the turbine." For the actual sync, crews roll the turbine and increase its rotations per minute to 3600, increasing about 360 rpms every minute. Then with the click of a mouse, electricity is ...



http://www.youtube.com/watch?v=sgBzQaH5pWY&hl=en