H3SH-17-C atb loher flender Helical gearboxes H3

Flender/Flender Gear Units/Helical gearboxes H3

C/DC shall be generated within the drive. Only external UPS supply shall be considered. ) Any specific requirement for Mot or bearing lubrication during ower failure conditions shall be indicated ri etai en in eer ng. Motor bearings shall be designed to take lubrication till natural stop of compressor & Motor system due to inertia without the need for an xternal uninterrupted power di stribution for lubricating pumps for the motor. 5.0 PAINTING Painting of panels shall be carried out using minimum 7-tank pr ocess. Finish of all Panels shall be electro statically powde red coated. Interior & Exterio color shade of all panels shall be RAL-7. Other paint shades are indicated in Technical specifi cation of items. 6.0 SPARES Tenderer shall guarantee for supply of spares for their equipme nt for at least 1 years. 1 of 1 INDRADHANUSH GAS GRID LIMITED TECHNICAL SPECIFICATION FOR NATURAL GAS COMPRESSOR STATION FOR NORTH EAST GAS GRID PIPELINE PROJECT ______________________________________________________________________________________________ TS NO.: MEC//2UU/0/2/0 Electrical system Chapter-0.0 2, MECON Limited, All Right Reserved Pag 1 of 2 7.0 TECHNICAL SPECIFICATION 7.1 Rating Selection of MV VFD 1. Continuous current rating of Compressor MV drive shall be minimum 1% of the motors full load rated current. 2. Current rating of MV drive shall be calculated after de-rating to specified ambient temperature (5 degree ). 7.2 Rating Selection of Drive Transformer Drive transformer sizing shall be done based on Motor rating & considering the following modifying parameters. 1. Motor efficiency, drive efficiency & drive power factor 2. Harmonic loading on the transform ers due to the MV VFD drive. 3. Ambient temperature as 5 deg . 4. Design Margin of 2 % shall be considered over and above the calculated rating (including harmonics loading) for reac