NCMC - Supply, Installation, Erection and Commissioning of 55KW AC Drives Panel with all the accessories at Mohanur Headworks in Namakkal City Municipal Corporation.

Supply, installation, erection and commissioning of 55KW AC Drives suitable for Pumping Station and the specifications were mentioned below (Ref: TWAD SOR 2024-25, Pg 231, MW-M0187) Technical Specifications: 400V Class Max Applicable Motor (KW) : 55KW 400V Class Rated Output Current (A) : 112A Overload Capacity : 110% for 60 sec. Output Frequency : 0~590 Hz (higher frequencies available with custom software) Control Methods Open and Closed Loop Current Vector; Open and Closed Loop V/f Motor Types Induction Surface Permanent Magnet (excluding 600V class) Interior Permanent Magnet (excluding 600V class) Protective Design IP20 10 to 50 °C and Up to 60°C with derating Braking Transistor : Standard through 75kW HD Global Certifications : UL, CSA, CE, C-Tick, RoHS

Standard I/O (8) multi-function digital inputs (24Vdc) (3) multi-function analog inputs (0 +/- 10 VDC, 4-20 mA) (1) multi-function pulse inputs (1) fault relay output (form C) (3) multi-function relay outputs (form A) (2) multi-function analog output (0 +/- 10 VDC, 4-20mA) (1) multi-function pulse output Feedback Incremental Absolute (Stegmann, Heidenhain EnDat, Resolver) Resolver Network Communication Built-in: Modbus RTU, RS-422/485, 115 kbps Optional: EtherNet IP, DeviceNet, Modbus TCP/IP, PROFINET, PROFIBUS-DP, MECHATROLINK-II Speed Control Range 1500:1 Closed Loop Vector (IM and PM Motors) 200:1 Open Loop Vector (IM Motors) 100:1 Open Loop Vector (PM Motors) Speed Control Accuracy £ 0.02%: Closed Loo Vector; ≤ 0.2%; Open Loop Vector Speed Response ≥ 60 Hz: Closed Loop Vector; ≥ 10 Hz: Open Loop Vector Torque Response ≥ 300 Hz: Closed Loop Vector Function Block Diagrams Up to 100 connections, 1ms program scan time

Supply, erection and commissioning of AC drive accessories as follows (Data-1) 1. MCCB 3Pole 160A with short circuit performance level of 50kA, Voltage capacity of 690VAC, 750VDC. 2. 2nos of Cooling fan 8 inches with inlet and outlet grill 3. Laying of Internal wiring with I/O terminals (Capacity: 160A) and ON/OFF push buttons and indicators DIGITAL MEASURING INSTRUMENTS

Supply, Installation and erection of IP55 Enclosure suitable to accomodate the VFD's and all the accessories.(Data-2) 1. Multifunction Meter suitable for Three Phase Application. 2. Copper Busbar arrangements for the Incoming power to the VFD's. 3. Copper Busbar arrangements for the Outgoing power from the VFD's. 4. Suitable Glands 5. Input Choke of 55KW suitable for above VFD's. 6. IP65 Powder Coated RAL7035 Metal Enclosure

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