NIT NO. 06, ITEM NO.02 (2026-27)/WW-III

S.No. SPECIFICATION OF FBCP 30VDC / 20 Amp 1ɸ FCBC FOR HT/LT PANEL 1.Type FCBC, 2. Manufacturer Maha Mai Engineers, 3. Make “MMAX Power”,4. Nominal input voltage 1 PHASE 230V ±10%, 5. Frequency of input supply 50 Hz ±5%, 6. Nominal output voltage 30 V DC, 7. Output voltage variation ±0 .05V/cell at rectifier O/P, 8. Nominal output current 40A [20A Battery + 20A Load ], 9.DC O/P Voltage Settings Nominal DC Output Voltage : 30 V DC (12 Cells of 2 V, 200 Ah SMF VRLA Battery) Float Charging Voltage @ 27°C : 33.0 V DC (2.25 V/ Cell ±5%), Adjustable Boost Charging Voltage @ 27°C : 34.5 V DC (2.35 V/Cell ±5%), Adjustable Temperature Compensation: Automatic temperature compensation Output Voltage Regulation: Better than ±1% from no-load to full-load. 10. Ripple ≤ 5 % RMS, 11.Noise level < 65 DB, 12. Static stability INBUILT 13. Charging method Auto Boost & Float 14. Operational ambient temperature range 0⁰ C - 55⁰ C 15. Boost charging automatically and manually Both mode provided. 16. Rectifier Block Type Thyristor-Diode full bridge half controlled. 17. DC filter type LC, 18. Earthing From body. 19. Protection degree IP – 30, 20. Cooling method Natural & by Fan, 21.Structure steel CRCA, 22. Steel thickness 16 SWG as per IS, 23. Structure Paint Powder coating, 24. Paint Shade RAL-7035, 25..DC Volt Meter Type / Size /Range/Accuracy Class Analog /96 X 96 mm/0-50 A/1.5, 26. O/P Voltmeter Type / Size /Range/Accuracy Class Analog /96 X 96 mm/0-50 A/1.5, 27. O/P Ammeter Type / Size /Range/Accuracy Class Analog /96 X 96 mm/0-50 A/1.5, 28. Battery Charge/Discharge / Size /Range/Accuracy Class Analog /96 X 96 mm/0-50 A/1.5, 29. I/P breaker 32A DP MCB, 30. Battery breaker 63A DP MCB31 Load breaker 63A DP MCB, 31. Outgoing Feeders 16A DP MCB (6 Nos.), 32. Over Load protection Electronic, 33. Short circuit protection Electronic & MCB, 34. O/P Over voltage protection Electronic, 35. Rotary Switch 3 way 2 pole, 36. Potentiometer: Float /Boost/Voltage Adjust, 37. Rectifier transformer Make: MAHA MAI VA RATING 2200 VA WINDING Class F Copper Wire Limits of temperature rise over ambient of 50°C not more than 90⁰ C, 38. Filter Choke Make: MMAX POWER RATING 20A WINDING Class F Copper Wire Limits of temperature rise over ambient of 50°C not more than 90⁰ C, 39. Control & Electronics Wiring 1.5 sq. mm AC Power Wiring 2.5 sq. mm DC Power Wiring 2.5 sq. mm & 10 Sq mm, 40. Blocking Diode Provided, 41. Standards Applicable Relevant IS & IEC, 42. Indications MAINS ON MAINSA FAIL CHARGER ON CHARGER FAIL* Auto Mode, Float Mode, Boost Mode DC High Voltage Trip RECTIFIER FUSE FAIL FILTER FUSE FAIL DC OVER LOAD EARTH FAULT

Renovation of Existing BCP for HT Panel. The work includes disconnection of cables from the Main HT Panel and BCP, termination of cables to the FBCP and HT/LT Panel using suitable thimbles and allied accessories. The work also includes necessary civil works., the system shall be tested and commissioned successfully under both no-load and full-load operating conditions.

Packing and forwarding , Freight unloading Charges