Bids Are Invited For Mtr Sc, 6.6Kv, 750Rpm, 1000Kw Total Quantity : 1, Bokaro-Jharkhand

Bids Are Invited For Mtr Sc, 6.6Kv, 750Rpm, 1000Kw -6.6KV, 1000 KW SQ. CAGE MOTOR FOR ASPIRATOR 1. Reference to IPSS : 1- 03- 024- 95 2. Site & operating condition :Dusty & continuous operation (conductive dust)Ambient temp. : 50 Degree Celsius. 3. Type of enclosure : IP55 4. Type of duty : S1 (Continuous). 5. Method of cooling : Closed Air Circuit Air Cooled (CACA) TETV (Totally Enclosed Tube Ventilated). 6. Type of construction : Fabricated. 7. Frequency in Hz. & permitted : 50 C/S –6 %, + 3 % variation 8. No. of phases : 3 Phase, all six (6) leads to be brought out at the bottom / at the Terminal box. 9. Capacity in KW : 1000 KW ( Sq. cage type ). 10. Rated voltage : 6.6 KV ± 10 % 11. Class of insulation : “F “with temp. limit of class B . 12. Speed of revolution : 750 rpm ( Sync. ) 13. Direction of rotation : Bi- directional. 14. Basic dimension : Existing motor & Base plate Drg. No. SP/EM/ MIS/ 005 enclosed. Base fixing dimension “A , B, Frame Height H and E+C should match 1:1. 15. Max. permissible temp. rise : Limited to Class B. 16. System of earthing : Un – Earth Neutral. 17. Detail of Shaft Extension: Single Shaft Extension. 18. Method of starting : D. O. L. on load. Contd…… 19. Ratio of T Start / T Rated : Equal to or MORE than 120 %. 20. Ratio of T max. / T Rated : Equal to or MORE than 220 %. 21. Ratio of T pull -out. / T Rated : Equal to or MORE than 220 %. 22. Ratio of I Start / I Rated : 6.0 (APPROX) 23. No. of Starts : a) No. of cold consecutive start : 3 b) No. of hot consecutive start : 2 24. Type of Mounting : Foot mounted ( B3 ). 25. Type of load : Sucking hot air from Sinter Bed and venting it out to Chimney. Working as Induced Draught Fan. 26. GD 2 of load : 1.58 TM2 27. Mode of power transmission : Flexible PB coupling 28. Efficiency : 96 .5 ( approx. ) 29. Power factor : 0. 87 ( approx. ) 30. Type of bearing : Anti – Friction bearing. 31. Stator Winding temp. Measurement: Six (6) nos. of RTD with termination in separate Terminal Box. 32. Bearing temp. : Two (2) nos. of RTD with Alarm & trip contact to be provided. 33. Moment of gyration of motor : To suit the GD2 of the load. Total Quantity : 1

Sr No	CorrigendumDate	Corrigendum	CorrigendumType	NewSubmissionDate
1	05-09-2024			11-09-2024
2	13-09-2024			20-09-2024

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