| 2 | Includes supply, installation, trial run and commissioning of Control Module for remote operation of VT pump sets are equired 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. 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 electroniccomponents shall be adequately rated and circuits shall be designed so that change of component characteristics shall not affect pump operation.The system should suit for different type of starters like AutoTransformer VFD, Soft starter, FCMA, Star-Delta etc 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. The system may communicate the status including the number of pumps in operation under an office, running hours, idling time, error logs etc. The system should have areplacement 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. 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 canbe set according to demand 24X7. In case of over current, Phase change and underoltage /overvoltage the pump can be turned off. Monitor the pumping time Monitor the Voltage, current. Themotor operation should be compatible on all mobile phone platforms, 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-bypasses’ of manual ON- OFF button, dynamic water hammer 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 facilityor compatibility ,true manual mode, manual Emergency off provision, auto-Manuel mode interlocks facility, etc. o Trial runshould be conducted in presence of Assistant Engineer. Requisite safety precautions should be taken before trial run so as prevent damages to Pump/Motor/Starter. viii. Trouble shooting and Operation of the system should be elaborated to the Operating staff. The work should have a warranty of 5 years. |
