A prototype component to the turbines at Tyee Lake's hydroelectric facility will be put into use this summer.
A new needle position feedback assembly will be going into service, replacing the current models. Southeast Alaska Power Agency executive Trey Acteson explained the current assembly units have a tendency to leak, and are experiencing senor failures.
The needle position feedback assembly sits atop the control head of the turbine nozzle restoring mechanism, and is a critical part in controlling the amount of water directed into the turbine runner. This in turn controls the speed of the g...
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