West Bengal Medical Services Corporation Limited Tender

SITC of 30 KVA UPS 3-phase input & 3-phase out put on line UPS systems Topology, IGBT BASED DSP CONTROLED- with warranty for the period of Three Years including Batteries. (Make: Neumeric / Schneiders / VERTIVE /Power one) Rating of UPS(KVA=KW): 30 KVA Input Specifications: Input Voltage: 304- 478 VAC 180-264 Volt /Phase(selectble) Input Frequency: 45 to 55 Hz Input PF at full load: .99 with Three Level IGBT Rectifire Total harmonic distortion THDI: 4% at linear Load Output Specifications: Output Voltage: 380----400-----415V ( Selectble) Overload: 110% for 60 minutes, 125% for 10 minutes, 150% for 1 minutes. Output Voltage Regulation: Static Variation +/- 1% and Dynamic variation +/-3% THDU: 3% linear Load/ 5% non- linear Load Output Frequency: 50 Hz Output Waveform: Sinewave Bypass Specifications: Overload: 125%- Continuous, 125-130%- for 10 minutes, 130-150% for 1 minutes. Static By Pass: 100% rated static switches with fuse protection.

Isolation Transformer: Inbuilt Isolation Transformer (Cu Coil) in input of the UPS; with 1:1 ratio to be provided . Back feed Protection: UPS should have back feed protection DC Ripple: Residual ripple Voltage should be 1% i.e. Zero Input Reverse Phase Sequence Correction: Builtin Crest Factor: 3:1 THDv: 1% (full linear load), 5% full (non linear load) Waveform: Sinusodial Birdge: Microprocessor based and IGBT Technology Overall Efficiency: 93% (With Isolation Transformer)

Battary Stand: With power coated MS angle with suiteble dimention and gadge, well air ventilation to ensure the battery optimum life cycle.Useing Nyvin cable with proper rating for interlink cables and battery input with DC MCCB and necessary acessiress. (Note: There should be a redundancy band in the case of a number of batteries) Battery : 12 V, SMF VRLA Batteries. DC Bus : Suitable for 240-480V (variable DC Bar) or above,30 min back up required (Minimum 31200 VAH) for each 30 KVA UPS. Battery Make: Exide/Amar Raja(Quanta) Protections: Input & Output Over / Under Voltage, Under Voltage, Battery Charging Over Current, Output Overload / Short Circuit / Over Temp/ Fan failure Audio Alarm: Mains Fail, Battery Low Pre-alarm, Inverter Trip, Over Load & Over Temperature