supply installation testing and commissioning of submersible pumping unit and other works at wss kothair.-1 supply, installation, testing & commissioning of 10 sq mm submersible cable to be used from sub pumping unit to control panelto be laid underground in pvc pipe etc. 2 supply, installation, testing & commissioning of open wellsubmersible pumping units as per is 14220 pump: - • type of pump : open well vertical submersible pump • quality of water to be handled :spring water material of construction:pump casing: cast iron impeller: sspump shaft : stainless steelmotor body : cast iron sealing : dual mech. seal rating : suitable for above parametermethod of starting: star – delta. • frequency : 50hz + 3% voltage : 415 + 6 %, - 15% manufactures motor rating : 7.50 hp 3 providing, fitting, testing and commissioning of voltage stabilizer 25 kva as per specifications below: type of voltage controller: manually operated copper wound, 3-phase, ac power supply multi step. type of regulator: double plate type with electrolytic copper contacts. input voltage: 250-400 volts. ( 3 phase ) output voltage : 400 ±10% volts. frequency: 50 ±3 c / s. windings: electrolytic grade copper of adequate section, vacuum impregnated.