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Tender For Supply, Installation And Commissioning Of Battery Pack Testing Equipment At Indian Institute Of Technology Dharwad; 1. Battery pack capacity requirement a. Voltage: 0 to 100 V b. Current: 0 to 1200Ah c. Number of Channels: 2 d. Control Mode: Independent control (Pulse and SIM tests disabled when in parallel mode). e. Channel Feature: Dual closed-loop control for constant current and constant voltage operation. 2. Power supply requirements parameters: a. Input Power Supply: AC 380V ±15%, 50/60Hz ±5% b. Power Factor: =99% (Full Load) c. THDi: =5% (Full Load) d. Input Impedance: =1 MO e. Input Power: 280-300 kW; Input Current: 429 A/single f. Overall System Efficiency (Max): 90- 95% g. Noise Level: =65 dB h. Power Control Module Type: MOSFET i. Input Power Wiring: Three-phase, five-wire system j. Power Input Protection: Anti-surge, anti-islanding, over/under-frequency, over/under-voltage, and open-phase protection. k. Input power supply cable length to battery pack tester unit: Minimum 3 meters. l. Connector cable length from battery pack tester unit to cell clamp holder unit: Minimum 5 meters. 3. Functional and Performance Specifications a. Voltage Output Range: Charge 0–100V; Discharge 3–100V (Min. Discharge Voltage: 3V), Accuracy: ±0.02% of FS; Resolution: 24-bit. b. Current Output Range: 60A / 120A / 240A / 1200A (Selectable Range), Current Accuracy: ±0.05% of FS; CV Cut-off Current: 100 mA; Resolution: 24-bit c. Single Channel Output Power: 120 kW; Total System Output Power: 240 kW d. Current response Time: =3 ms; Conversion Time: =6 ms; Minimum Step Time: 0.1 s e. Charge/Discharge Modes: CCC, CVC, CC-CVC, CPC, CCD, CVD, CC-CVD, CPD, CRD. Cut-off Conditions: Voltage, Current, ?Time, Capacity, -?V f. Simulation: Charging/Discharge with current and power mode,switching with programmable timestep control g. Pulse Step Mode: Charging/Discharge with current and power, Minimum Pulse Duration 50 ms, up to 32 Pulse Counts, Voltage/?Time cut-off control. h. DCIR Measurement: Supported via calculation. i. Safety and Protection Features: 1.Software Protection: Includes voltage, current and time limits, with data protection and offline mode. 2.Hardware Protection: Anti-reverse connection, over-voltage, over-current, and over-temperature. 4. Data Management and Communication a. Step Setting: Configurable via Form Editing b. Recording Interval: Minimum 10 ms (100 ms with AUX) c. Voltage Interval: 200 mV; Current Interval: 100–200 mA depending on range d. Recording Frequency: 100 Hz (10 Hz with AUX Channel) e. Database: MySQL Database; Output Formats: Excel, TXT or CSV. f. Curve Templates: Standard and customizable format. g. Barcode Scanning: Supported for data traceability and management. h. Communication Protocol: TCP/IP over Ethernet (1M bandwidth for lower computer; 10M–100M adaptive for host computer) i. Networking: Local area network via switch/router setup. j. Optional Communication: CAN, RS485 and BMS Communication (DBC Configuration Supported). 5. Environmental and Physical Conditions a. Operating Temperature: -10°C to 40°C (Accuracy drift <0.005% FS/°C within 25±5°C) b. Storage Temperature: -20°C to 50°C c. Operating Humidity: =70% RH (No condensation) d. Storage Humidity: =80% RH (No condensation) 6. Additional requirement along with the Battery pack tester 1. 100 Quantity of 46800 NMC cells, Nominal voltage: 3.7 V, Capacity: 22 Ah 2. 100 Quantity of 18650 NMC cells, Nominal voltage: 3.6 V, Capacity: 3 Ah 3. 100 Quantity of 21700 NMC cells, Nominal voltage: 3.6 V, Capacity: 4.9 Ah 4. Lithium Battery pack spot welding machine of capacity of 4KVA.
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