- Gilberton pumping station is designed to pump approximately 650l/s from Gilberton to Hope Valley 103 tank & supply zone.
- Gilberton Pump station consists of 2 no’s of Horizontal, split case, centrifugal pumps (KSB Omega 300-435 B SC G F ) each with capacity of 325 l/s at 45m head each powered by 250 kW, 400 V motor operated by VSD.
- Each pump is fitted with flywheel of weight 1027 kg providing inertia of 95 kgm² for surge mitigation.
- Each pump is automatically controlled by their local PLC or manually controlled via the HMI panel. A separate System Wide Control (SWC) PLC will provide control signals to each pump’s PLC and the critical control links, SCADANet and the other local PLCs on the site.
- Operating philosophy: Based on the Hope Valley 103 tank levels the pump will on and off. The pump gets the start permission when the Clapham tank level is above 35{87a03eb4327cd2ba79570dbcca4066c6d479b8f7279bafdb318e7183d82771cf} tank level and the pressure in the pump suction is above 95m AHD. Once on, the pump ramps up to the maximum speed to discharge the desired flow of 650l/s. When operating, it ramps up and down to maintain the suction pressure above 90m AHD. If unable to maintain the suction pressure and the pressure reaches 85m AHD the pump is switched off.
- Volume: 55 Ml/day (625l/s x 24 hrs)
Click here for more background on SA Water’s North South Interconnection System Project (NSISP)
