The SPAS, Start of Pump Against System, program can calculate the start-up sequence for both direct on line D.O.L. start and start with different starting methods (i.e. star/delta, auto transformer and soft starter). If the settings are unknown the program will calculate and recommend suitable settings for the selected starting method and optimise for minimum starting current. A key feature of the SPAS program is its ability to account for the acceleration of the water column when analysing the starting process. This yields more accurate results than most methods found in handbooks etc.

Contact Your local Xylem Water Solutions office to get a start calculation for Your system started with a Flygt pump.

Output from the SPAS program