Kerala Water Authority Tender

Automation of Raw water Pump set and Water levels monitoring and alerting system for storage tanks

OD89886/2024-2025:Supply, installation, trial run and commissioning of Control Module for remote operation of 3 Nos 100 HP VT pump set only 2 pumps running at a time at Ellackal Pump House which is required to automate the start, stop, monitor the operation of VT pump taking care of protection features in situation like over voltage, under voltage, phase changes, single phasing, overload and situations like impeller jam, air lock, foot valve blocked, sump dry. The system should suit for different type of starters like VFD, Soft starter, FCMA, StarDelta etc*. the input supply to the drive is through 440v, 3.3kv,6.6kv or 11kv, controlled by substations and transformers. The added system shall not interfere with the working of starters negatively and should be of externally fitting type. The communication shall be based on GSM and remote operation communication, system status communication should be made available for at least 2 users and to HMI dashboard. The pump should be controlled to start in step-by step mode in rpm increase, without causing over current flow/huge rise in ampere (Delivery valve in full open mode with NRV/reflux valve). The system may communicate the status including the number of pumps in operation under an office, running hours, idling time, error logs etc. The new system should go in hand with the future integration with PLC/SCADA/ or any remote control systems and should follow standard universal protocol in communication between systems, so that the pump shall be configurable in the PLC/SCADA/ any remote control systems and operation updates shall be visible in the HMI of the SCADA System. There should be sufficient provision in the PLC for taking inputs from flow meters, Pressure sensors, Vibration sensors, temperature sensors, provision for controlling of valves via actuators, to facilitate full automation at a later stage(30% spare capacity for each panel for future expansion shall be provided in PLC) other than current, voltage, energy readings/consumption and PF, and facility to control multiple pumps in the pump house and shall be suitable for HMI dashboard integration. Communication can be with GSM or any other suitable modes. Step by step RPM control is meant for VFDs. There should be Auto/Manual selector switch. Malfunctioning in the system shall be communicated through SMS/ or any other suitable communication modes. Real time monitoring of Electrical parameters should be there in the system, including system health. The installed mechanism shall be IoT based. The system should permit connectivity to third party devices for facilitation of future upgradation. Each pump/motor rating shall be taken/considered individually while design of the system for protection.The system should have a replacement warranty of 5 years against normal machine faults, power flash, memory flash, surge failure, lighting surge failure, harmonic failure etc. Scope of the works includes supply, installation, commissioning & testing of automation system for pump houses and real time monitoring of the working of pumps without resorting to any manual methods. Proposed Automation system shall be designed, manufactured, installed and tested to ensure the high standards of operational reliability. Instruments mounted in field and on panels shall be suitable for continuous operation. All electronic components shall be adequately rated and circuits shall be designed so that change of component characteristics shall not affect pump operation. Control the pump (ON/OFF) from local panel as well as remotely. Pump can be programmed to start if water is below a set level and turned off if reached to set level. The pump can also be operated on fixed time basis daily, or in other words pumping hours can be set according to demand 24X7. In case of over current, Phase change and under voltage/over voltage the pump can be turned off. Monitor the pumping time Monitor the Voltage, current, frequency. The motor operation should be compatible on all mobile phone platforms, Android, iOS, Windows, even from normal phone or land phone and with semi automatic star delta. The control module should have the features like high–voltage isolation, high voltage cut off, machine surge protection, software security provision, real time motor parameters without SMS or GPRS through IVRS, dynamic power fault correction, automatic reset facility, starter interlock facility, local HMI with exact error display for local troubleshooting, live local motor parameters display with at least 3 second refresh rate, non bypass of manual ON- OFF button, dynamic water habit stabilization, dynamic configuration facility 3 phases individual input rated fast blown replaceable fuse control, rated fast blown replaceable fuse control for machine board protection, motor or starter power or technology up gradation facility or compatibility, true manual mode, manual Emergency off provision and auto-Manual mode interlocks facility. The system should have a warranty of 5 years.

OD90410/2024-2025:Pressure sensor upto 16 bar with 4 to 20mA analog output for discharge line pressure sensing, remote monitoring and automatic pumping cutoff; Real-time pressure sensor reading display. Remote data access over SMS, web and mobile apps. with warranty for 5 years