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Tender For corrigendum : servicing / routine maintenance of various electrical gadgets like 705 hp ht motor high lift/ low lift f.a.s.d. starters and overhead travelling electric crane at rafiabad high lift irrigation scheme
Tender For repairing/re commissioning electrical wiring of komatsu dumper sl. no. n10356, n10357, motor grader bg825, sl. no. 3136 and til crane rt 740b, sl. no. 40852 at birsa project
Tender For providing of custom bid for services - hiring of hydraulic excavator capacity 0 pt 90 cum 20 ton with heavy duty rock breaker assembly 03 nos,custom bid for services - hiring of motor grader 01 nos,custom bid for services - hiring of road roller tvrr 8 to 10 ton 01 nos,custom bid for services - hiring of hydra crane 30 ton 01 nos
Tender For vvvf drive of 11 kw 415 v ac is required for eot crane auxiliary hoist moti on with crane control software. supply, installation and commissioning & testing vvvf (variable v oltage variable frequency) drive 11 kw heavy duty with inbuilt direct torque control system. power output : 1 1kw, 15 hp, 415 v three phase output voltage : 0 to 415 v, ac ,normal duty : 25 amps. heavy duty : 20 am ps.rated input voltage : 380-480 v, ac, 3 phase , fluctuation voltage : -15, 10% frequency : 50-60 hz ,frequen cy resolution : 0.1 hz (maximum ) ,over torque capacity - heavy duty :150% (minimum) for 1 minute. normal duty : 120% (minimum) for 1 minute and 200% for 3 seconds. transient over toque : 150 % (minimum) of nomin al motor torque for 60 second (minimum) speed : variable, suitable for preset speeds . ambient temperature : 1 0 to 50 degree celsius at full load basic features of the drive -: 1. performance - excellent crane control algorith m provides best in class torque performance and speed regulation. 2. control the large easy to read customizabl e 2 line display uses plain text words. 3. start-up the quick start menu incorporates macro configurations for eas y and fast commissioning. 4. an integrated mudbugs port for network connectivity and easy integration into auto mation system or other optional communications connectivity. 5. expandable the simple addition of i/o, commun ication cards, and programmable controller cards which make the drive highly adaptable and connectable to othe r product. 6.drive booting time drive booting time should not to be more than 02 seconds. and all specifica tions as per annexure a make -: crompton greaves, yaskawa , siemens , abb, l&t, schneider [ warr anty period: 24 months after the date of delivery ]
Tender For supply of ac drive with the following specification: 1.ac drive is required to drive squirrel cage in duction motor: 7.5 kw / 10 hp, 3 phase, 415 v ac, 50 hz, 4 pole / 6 pole, s1/s4 duty. 2. application: ac drive i s required for crane long travel / lathe / hydraulic pump motor/ conveyor applications. 3.ac drive mains supp ly: 3 phase, 380 ?400 v ac, 50 hz 4.ac drive nominal capacity (output rating): 7.5 kw, 16.0 amps rating. 5.m ounting type: panel mounting type, degree of protection: ip-20 6.the drive shall work without encoder feedback s ystem. the drive shall have to work with suitable current feedback system for speed control. the ac drive shall include required braking chopper, rfi / emc filter. 7.drive shall have inbuilt protection system: drive overload, e xcessive load, ground fault, heat sink over temperature, motor over load, over speed limit, over voltage, under vo ltage, short circuit etc. 8.the drive shall have provision to wok from the digital inputs in, up/down or forwar d / reverse direction, and in jog, start, stop, speed-1, speed-2 & speed-3 modes. 9.drive shall ha ve standard minimum; 6 digital inputs, 2 digital outputs, 2 analog inputs, 1 analog output and 2 relay outputs. 10.the drive shall have hmi with touchpad key mounted on it, to display various operating parameters in englis h. hmi shall also be capable of editing the drive parameters. drive shall have self-monitoring watch dog facility, t o display fault and alarm indications. 11.ac drive software program for crane duty application shall be supplied in soft copy. 12.suitable communication cable to communicate between laptop and ac drive shall be supplied al ong with the drive. 13.operating manual in hard copy shall be supplied along with the drive. 14.during the time of joint inspection at rwf, rwf will make necessary cable connections to the rated capacity induction motor & a c drive. the supplier has to test the ac drive for the rated capacity induction motor on the crane/ equipment, a nd t [ warranty period: 18 months after the date of delivery ]
Tender For corrigendum : supply of dg eot cranes up to 100t for mel singrauli tpp - 60t capacity double girder eot crane with 25m lift of main hook, nine point one meter span bfp area crane - refer un priced boq in gem atc and technical specification pe-ts- 504-501-a002 , dsl for 64 m bay length - refer un-priced boq in gem atc and technical specification pe-ts-504-501- a002 , 64 m bay length gantry rail- refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , set of axle bearings - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , set of gearbox bearings with sleeves - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , long travel end shaft bearings - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , coupling - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , seals for travel gear box - refer un priced boq in gem atc and technical specification pe-ts- 504-501-a002 , long travel brake shoes lining- refer un priced boq in gem atc and technical specification pe-ts- 504-501-a002 , axle bearings - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , set of seals for gearbox - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , cross travel end shaft bearing - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , cross travel brake shoes lining - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , main hoist pulley bearings - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , set of bearings for gear box - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , set of seals for main hoist - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , main hoist brake shoes - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , main hoist brake springs - refer un priced boq in gem atc and technical specification pe-ts- 504-501-a002 , main hoist brake shoe liners - refer un priced boq in gem atc and technical specification pe-ts- 504-501-a002 , bearings de and nde for each type and rating of motors - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , motor of each type and rating - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , site visits - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002 , supervision of erection and commissining - refer un-priced boq in gem atc and technical specification pe-ts-504-501-a002