Construction of 6 bedded Hybrid CCU at Tehatta SDH SITC 20 KVA UPS and 30 KVA Servo Voltage Stabilizer

Amount

Supply, installation, testing & commissioning 20 kVA UPS with on-line double conversion with PWM Hi-Frequency technology & 30 Mins Back-up, passing trough neutral and Modular Architecture with the possibility to have N+X internal redundancy. The UPS should have modular architecture composed by identical redundant intelligence modules which work in parallel. These modules should be installed inside the UPS and have identical functions. Power Modules consist of the following circuits:-(i)Rectifier/PFC, (ii) Inverter, (iii) Battery-Charger, (iv) Command Logic Circuit, (v) Automatic By-Pass. The Redundancy is achieved using more modules than needed being run in "load sharing". The UPS 20 KVA should have Single Phase / three–phase input and output, the architecture is distributed parallel architecture in each phase. In each Power Module, there should be built-in static by-pass system which transfer the load to utility power without interruption in case of heavy overloaded or faulty conditions. A dedicated software of Remote Monitoring & Management, installed on a PC connected to the UPS, allows to check & set all working parameters and the same functions is available on the UPS control panel & fyrthermore to schedule & programme for Computer Remote shutdown. [Make:- Legrand/Emerson/Schneider] Nominal Power: 20 KVA Active Power : 20 KW UPS Topology: DSP-Controlled On line double conversion VFI-SS-111 system In/Out phase Configuration: Three/ Three, Single/Single, Single/Three, Three/Single (Configurable at site)

Module: Minimum 5 modules to be provided. Neutral: Neutral Passing through Output wave form on mains run: Pure Sinusoidal Output wave form on battery run: Pure Sinusoidal Bypass type: Static and electro - mechanical Transfer time: Zero ECO Mode: Availabale Cold Start Features: Availabale. UPS can be power tested without load INPUT Rated Input Voltage: 380/400/415 VAC 3 PH +N( for 3 Phase) and 220/230/240 VAC ( for 1 Phase) Input Voltage range: 305V-477V Rated Operating Frequency: 50 Hz/ 60 Hz (Autosensing) Input Frequency Range: 40-70 Hz THDi: < 4 % at 100 % of nominal load Isolation Transformer : At the Input side Input Power Factor: >=0.99 OUTPUT WITH MAINS (AC-AC) Nominal Voltage: 380/400/415V 3PH + N( for 3 Phase), 220/230/240V ( for 1 Phase) Nominal Power: 20 kVA Active Power: 20 kW Voltage variation (static): ± 1% Voltage variation ( dynamic 0-100%;100-0%): ± 1% THDv on nominal power (linear load): < 0.5 %

THDv on nominal power (non- linear load): < 1% Nominal Output Frequency: 50 Hz/ 60 Hz (Autosensing) Frequency Range: 50 Hz +/- 1% or 60 Hz +/- 1% Frequency tolerance: Synchronized with input frequency or ± 1% in free running Current Crest Factor: 3:1 according with IEC C62040 -3 Overload Capability: @ unity PF 10 min: 110% load rate with no bypass intervention 60 sec: 130% load tare with no bypass intervention 30 sec: >130% load tare with no bypass intervention BATTERY Type & Voltage: SMF & 12V Minimum VAH required: 18000 VAH Make: Exide/Quanta Charging Cycle: Automatic float cum boost charging capability with settable float & boost charging voltages & current levels and boots charger timer. GENERAL FEATURES Efficiency in online mode: Upto 96% Efficiency in Eco Mode: 99% Noise level @1m: 46 dBA Working temperature range: from 0°C to 40°C Storage temperature range: from - 20°C to + 50°C ( Excluded batteries) Relative Humidity range: 20-95% without condensation Protection Degree: IP 21

Configuration and Management Technology Rectifier/Booster/Inverter: IGBT Communication Interface: (i) Smart Port RS 232, RS 485, SNMP Enabled (ii) Slots for communication interface for SNMP & BMS integration Input /Output connection: 3P + N + PE Connectors on omega bar Remote Monitoring Features : Available Standards, Regulatory compliance and Certification General and Safety requirements for UPS: EN/IEC-62040-1-1 EMC requirements for UPS: EN/IEC-62040-2 Design and Test Method: EN/IEC-62040-3 Certificates: CE Display/Indication, Metering, Alarm Audio alarm: Mains fail, Battery low pre-alarm, Inverter trip etc. Metering: (i) Input & Output: Current:- RMS Value, peak value Crest factor Voltage:- Ph-N RMS Value, Ph-Ph RMS value, By-Pass Line voltage( for Input) Power:- Nominal Power(VA), Active Power(W), Power factor, frequency (ii)Battery: Voltage, Current, Capacity, History data, Residual capacity, Charging status (iii) Bypass: Enabling, Forced, DIP Speed, ECO Mode (iv) Miscellaneous: Internal Temperature, Fan speed, DC Bus Voltage

Indication/Display: Mains:- On/Fail/High/Low/Single Phasing, DC:- On/High, Battery:- Low Pre-alarm/Low Trip, Inverter:- On/Trip, By-Pass Intervention, Overheats, Overloads, Battery Intervention, Total Discharge etc.

SITC of Servo voltage stabilizer 30 KVA, 3 PHASE,Input Voltage Range : 350 - 470 V, Output Voltage (3 Ph) 415V AC System Unbalanced 4 wire: R Y B N Connections Star Operating Frequency 47 to 53 Hz Output Voltage Adjustable 350 to 470V AC in 3 Ph Output Voltage Regulation + 1% (No Load) Output Voltage Regulation + 1% (Full Load) Overload Capacity 120% Correction Rate 60 / 30 / 25V per Sec-3 Phase Waveform Distortion Nil Output Waveform True Reproduction of Input Insulation Class F Short Circuit period & Percentage 300% for 250 Milli Sec. Normal Operation Temperature 0° C to 45° C Climate Conditions 90% Rh Max.( Make-Estonics/Electra)

T.D.K. ENTERPRISE

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