S&WB: Critical part of pump system back in service
NEW ORLEANS (WVUE) - The Sewerage & Water Board of New Orleans announced Monday that it has returned to service another large power turbine at the Carrollton Water Plant.
According to the report, Turbine 3 was successfully tested this past weekend, and can deliver another 12 MW of 25 Hz power to run New Orleans' drainage system.
It is the third turbine to be restored since the 2017 summer floods.
Turbines 1 and 5 have also been returned to service and are available during future rain events.
The turbine has been down for repairs since May 2017.
Those three turbines, combined with backup power from Turbine 6, four electro-motive diesel (EMD) generators, frequency changers and additional auxiliary generators at drainage pumping stations, can produce 71.25 MW of 25 Hz power, according to the report.
The entire drainage system needs about 52 MW of power to run at full go.
As the city prepares for the upcoming 2018 hurricane season, the agency now has more 25 Hz power available than it has had in years.
According to the S&WB. it has also made necessary repairs to a drainage pump at Drainage Pumping Station 12 in Lakeview after it experienced an issue with is suction capability during the April 14 rain event.
Five pumps – four drainage pumps and one constant duty pump – remain under repair.
The S&WB's drainage system has 115 of its 120 pumps in service and available for the next rain event.
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