Upgradation of 3 No. FCMA Starters for correction in Starting current of 695 KW, 11KV Squirrel Cage Induction Motors at Lift Water Supply Station Tangnar Stage-2nd.

Amount

Upgradation of FCMA Starter for correction in Starting current of 695 KW,11 KV Squirrel cage Induction Motor by limiting the initial inrush current 2.5 to 3 times of the FLC (Full load current) for this purpose the standby starter fitted with damaged core coil assembly originally fitted in starter of unit 2nd shall be shifted and unloaded at workshop of successful contactor following works/sub works shall be carried out in a sequential manner after disengaging the damaged FCMA starter from its controlling and tripping circuit/cabling using highly skilled technicians well versed with the Job, tools & tackles etc. Loading, Shifting and unloading the damaged FCMA starter from site to workshop in a private load carrier: - a) Dismantling the damaged core-coil Transformer assembly from main cabinet of the FCMA starter after dismantling all connections/tapping’s leading to 2 pole 11 Kv vacuum contactor, main controlling and tripping circuit with the starter assembly using highly skilled technicians well versed with the Job, tools &tackles as required. b) Extracting of damaged coils from damaged core-coil Transformer assembly by way of drilling /chipping out all Epoxy coatings/moulds using drilling/chipping machines, highly skilled technicians well versed with the Job & allied tools &tackles as required taking all precautionary measures to safeguard the core as well as Fibre glass container/frame of the coil -core transformer assembly of the starter. c) Complete rewinding of Three coils/cells on existing core with the available Fibre glass containers as per the Design, Gauge, No of turns, Insulation & Specifications required for achieving above objective of limiting the initial inrush current 2.5 to 3 times of the FLC (Full load current) by way of using Superior quality Copper conductor of 11 KV grade including copper bus bar terminals for tapping’s from each coil [Approx. of about 270 Kgs with 90 kgs per coil/cell] having purity not less than 99.9% [Certificate for Purity to be provided by Firm]with all required insulation of conductor by using Phlogopite mica tape, glass fibre tape, F-Class insulating paper etc. to withstand 11kv voltage with allied required fittings, knots etc. using Highly skilled Electrician well versed with the job & tools and tackles etc. followed by Heat Treatment/drying of the core coil Transformer assembly to extract moisture from windings by giving proper oven drying at the facility of the firm at 90 to 100 degree Celsius for minimum 24 hours and checking, recording desired parameters after Heat treatment procedure by required testing equipment’s followed by insulating with F-Class varnish to all portion. Heat Treatment/drying by manual means again after varnishing of the windings. The job further includes Re-enamelling by Spraying of epoxy resin coats [ Approx. abt 125 kgs] in red with hardener [Approx. abt 30 kgs] with the help of spray gun to cover the whole insulated core -coil assembly windings and drying of the same thoroughly by specific means using hot blower followed by final Measuring, recording the desired Insulation Resistance (IR) & Ratio test values again using testing equipment’s etc. after natural drying. Painting of whole Transformer assembly all over outside in blue. All required costs for hiring Qualified Electrical Engineer concerned, with Job, special tools &tackles are included in the said job.

Providing and Fitting of Six Channel based Programmable logic controller [PLC] with7 Inch Human-Machine Interface [HMI] having TFT Touch Screen display, User Management, Recipe Management, Alarm Management, Inbuilt Buzzer for Alarm conditions MODBUS RS485/RS232, Ethernet & USB2.0 port working on 220-volt AC and 24VDC Power Supply with (HMI) Programmable software enabling/ manage industrial and process control machinery via a computer-based graphical user interface (GUI) with RPM encoder in order to match and control the starting speed and time to limit Full Load Current for variable Voltage. The job includes Providing and Fitting of Six Channel based 7 Ampere 24 V DC relay card/Relay Module Single Change Over / Double Change over with 1NO and 1 NC complete with USB to serial Convertor, Serial to Serial converter & serial to Ethernet Converter complete with cables and adapters. The Job also includes Providing and Fitting of SMPS power supply 24 Volt DC 10 Ampere having input of wide band of AC with Protections of Overload / Over Voltage / Short Circuit, Auto-Recovery After Protection, Universal AC input / Full range,100% Full Load Burn-in Test, cooling by Free Air Convection, High Quality and High-Performance LED power supply with a metal body for hidden installation for LED lighting, Design with built-in EMI Filter, improve signal precision. The above whole PLC, HMI etc. arrangement shall be fitted inside of the existing FCMA Soft starter assembly with all required fixtures and fittings including backlite sheet of size 600x600x8mm with allied required accessories like connectors and 1 sq. mm copper cable FRSL for axially wiring system of starter with ferrule no’s. The job also includes dismantling of existing auxiliary as well as control wiring system of the starter assembly and up-gradation of same for accommodating above PLC, HMI and allied components. The job further includes providing and fitting of sensors at appropriate places within starter and Motor stool near flange coupling of Pump & motor with all fixtures required for efficient sensing. All required costs for hiring Highly Skilled Electrical/ Electronic Engineer concerned, HMI programmer /Software Engineer, special tools &tackles are included in the said job. (Preferable Makes of items: SELEC/DELTA/SIEMENS/Substantially equivalent

Providing and Fitting of New NF22E-13 100-250V50/60HZ-DC Contactor Relay of ABB Make as a replacement against damaged ones in main Control Panel of the starter assembly.

Providing and fitting of Moulded Case 200/5 A ratio Current Transformer CT switch Current Level of 0.66/3 KV confirming to IS 2705/1992 with all fixtures having rated primary current of 200 A and a secondary rated current of 5 A. The burden of the current transformer is 5 VA and its precision should be according to class 1confirming to IS 2705 with latest amendment and relevant IEC standard.

Providing and Fitting of New A1D1-X Timer 24 to 240V AC 50/60 HZ ,24 to 220 V DC -10% t0 + 10 %Timer assembly having contact of 5A,250 V AC/28 V DC Resistive load having Time range 3 sec to 30 min of EAPL/L&T make as a replacement against damaged ones in main Control Panel of the starter assembly.

Providing and fitting of New 300-ohm resistance assembly consisting of 3 No individual 100-ohm resistance as per existing sample as a replacement against damaged one.

Providing, fitting, laying & successful commissioning of 6 core 1.5 sq. mm multi strand unarmoured, XLPE insulated PVC inner-sheathed [2XWY] Copper cables suitable for voltage grade 1.1 Kv as per IS 7098-1 with latest amendments in Single lengths /runs for connecting Auxiliary L.T Panel with FCMA Starter Panel with proper thimbles/ lugs and insulation Tapping’s.

Providing, fitting, laying & successful commissioning of Armoured CAT 6 Jelly Injected cable insulated PVC Sheathed Copper cables suitable for Communication Purpose in Single lengths /runs for connecting Sensors from existing Pump-motor Flange upto FCMA Soft Starter PLC chamber /assembly with insulation Tapping ‘etc in cable trays along with cable ties/fixtures.

Loading, Shifting and unloading the upgraded FCMA Soft starter from workshop to site in a private load carrier followed by assembling/fitting it with existing system of supply leads, controlling and tripping circuit using highly skilled technicians well versed with the Job, tools &tackles as required and testing it on no load and then on full load and ascertaining of limiting the initial inrush current 2.5 to 3 times of the FLC (Full load current.

Less Old copper material/Scrap

In the first instance upgradation shall be undertaken to 01 Starter only. If the work is executed satisfactory and the desired output / objective is obtained, the successful contractor shall then be allowed to undertake the modification of the remaining starters

M/S SARIM ELECTRICAL SOLUTIONS