Electrical Works

Amount

Supply & fixing of 30KVA online UPS (three phase input/three phase output) micro processor controlled Double conversion true online UPS system with builtin isolation transformer and power factor correction, auto phase sequence correction with Exide SMF batteries for 1hour backup time & with suitable MS powder coated rack for batteries and interlink cables complete with the following specifications.

Supply & fixing of 40KVA online UPS (three phase input/three phase output) micro processor controlled Double conversion true online UPS system with builtin isolation transformer and power factor correction, auto phase sequence correction with Exide SMF batteries for 1hour backup time & with suitable MS powder coated rack for batteries and interlink cables complete with the following specifications. Configuration : True ON LINE Double Conversion UPS SYSTEM with Pulse Width Modulation (PWM) Technology using IGBT Inverter. Rectifier : Full Wave(Shall Fully meet the specified Input Power requirements) Input : 400V ± 15% Output : 400V ± 1% Frequency : 50 Hz ± 0.5Hz System DC Voltage : 360V Inversion Technology : Microprossessor Controlled, PWM with Instantaneous Sine Wave control using IGBT.

Charger : Built in solid state Automatic float-cum-boost charger with constant current, constant voltage mode of charging along with current limiting features. Ripple in DC shall not exceed 2% when battery is disconnected. Protection (Inbuilt) : a. Output Under Voltage b. Output Over Voltage c. Output Overload d. Output Short Circuit e. HRC Fuses-input/output/battery f. Battery Low trip g. Battery Charging Current Limit. Indications : 1. Mains ON 2. Inverter ON 3 . UPS ON Battery 4. Battery Low 5. Mains Failure 6. Overload Trip 7. Inverter Trip Metering : i. Output AC voltage ii. Output DC voltage iii. Frequency Terminals : Input - 4 Pole MCB Output - 4 Pole MCB

Electrical work for 30KVA UPS Supply and fixing of 100A FP MCB in suitable sheet steel enclosure with inter connection. (Legrand (MDS) /Hager (L&T) Make/Equ)

Supply and fixing of 63A FP MCB in suitable sheet steel enclosure with inter connection. (Legrand (MDS) /Hager (L&T) Make/ Equ)

Supply and fixing of 63A FP MCB in suitable sheet steel enclosure with inter connection. (Legrand (MDS) /Hager (L&T) Make/Equ)

30KVA UPS: Supply and run of 4 of 16 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100 V grade in suitable PVC rigd pipe on wall and ceiling with continuous earth wire connection by 16 sq.mm. PVC insulated SC unsheathed FRLS copper wire with painting of suitable colour.

Supply and run of 4 of 10 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100 V grade in suitable PVC rigd pipe on wall and ceiling with continuous earth wire connection by 10 sq.mm. PVC insulated SC unsheathed FRLS copper wire with painting of suitable colour.

40KVA UPS:Supply and run of 4 of 25 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100 V grade in suitable PVC rigd pipe on wall and ceiling with continuous earth wire connection by 25 sq.mm. PVC insulated SC unsheathed FRLS copper wire with painting of suitable colour.

Supply and Installation maintenance free GI Earthing system comprising of 50mm dia and 2 mtr long earth electrode of low carbon steel rod with 100 micron bonding and 25kgs of carbon based environment friendly backfill compound and suitable clamp.

Supply and run of 25mm x 3mm tinned copper flat with necessary clamps / supports on wall / floor / ground for earth connection

Fabrication, Supply and fixing of 300mm length and 32mm projection type 25mm x 3mm Cu flat clamp including bolt nut provision at equal interval.

GST at 18%

Thiru G. Ramachandran (BID ID -1248036)