SPL REPAIRS AND REPLACEMENT OF 120 KVA ONLINE UPS AND CONNECTED WORKS AGAINST BER UPS AT TS-1 DOLPHIN HILL UNDER AGE E/M NO II OF GE(U-I) VISAKHAPTNAM

Amount

M&L earthing complete with galvanised steel earth plate electrode of size 600 x 600 x 6 mm thick buried directly in ground in vertical position (earth pit not less than 2.25 m deep below the normal ground level) with top edge of the earth plate not less than 1.5 m below normal ground level, connected to earth lead of galvanised iron strip 32 x 6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel, all as shown in electrical plate No. 3 of SSR connected to earthing test point complete all as specified and directed. Note:- The unit rate shall also include for earth work in any type of soil, PCC 1:3:6 type C1 chamber, RCC 1:1.5:3, type A1 cover slab, 50 mm thick reinforced with 8 mm dia TMT bar @ 140 mm C/C both ways, 10 mm dia plain bar lifting handle embedded in cover slab, Main earthing lead from earth electrode to test point upto 7.5 m length, 20 mm bore medium grade GI watering pipe, 40 mm bore GI light grade earth lead protection pipe, funnel, wire mesh, copper lugs, charcoal and common salt in alternate layer etc.

Supply & laying LT XLPE insulated, armoured heavy duty electric cable with alumimium conductor, 1100 volts grade, cross sectional area 16 Sqmm x 4 Core, laid in trenches / duct / on pole including all as specified and directed. Make :- Havells / KEI / Polycab / Gloster

Supply, installation, testing and commissioning of 3 X 120KVA online UPS system with following technical specification Including dismantling of existing 3 nos UPS of any capacity from TS1 Dolphin hill after disconnecting all electrical connections from batteries and shifting the UPS system to AGE E/M No-II store yard complete all as specified and as directed by Engr-in-Charge:- (i) (a) Technology : IGBT based true online double conversion microprocessor controlled with parallel configuration built in Isolation transformer. (b) Rated Output: 120 KVA / 108 KW (c) The UPS system is compatible for 0.7 lagging to 0.9 leading PF loads without deration. (d) Input Power factor at full load : ≥ 0.99 (e) Input Power factor at 50% load : ≤ 0.98 (f) Input current YHDi at full load ≤ 3% (g) Input current THDi at 50% load ≤ 6% (h) Input rectifier IGBT based (j) Voltage 380 / 400 / 415v (k) Voltage tolerance 320-480V at rated load, upto 240-480V at 50% load (l) Frequency 50 / 60Hz & Frequency tolerance + 10% (Contd...)

(viii) Protection: Input voltage, Output voltage, Input efficiency. Output Frequency Battery Charging Discharging level, Load Level, Input high / Normal / Low / fail, output overload, output short circuit, output fault etc. (ix) Overall efficiency: Including the transformer loss (a) At full load ≥ 93.0% (b) At 75% load ≥ 93.5% (c) At 50% load ≥ 93.5% (d) At 25% load ≥ 90.5% (x) Battery bank: Existing battery bank of led Acid sealed (a) Maintenance free batteries shall be connected with UPS. Minor spares If any to be replaced as per manufacture instructions shall be done at no extra cost. (b) Backup : 30 Min on full load battery (c) By pass / Remote Monitoring : Automatic static Bypass switch / SNMP support (xi) UPS shall also include following :- (a) Alarm indication, Main ON, Inverter ON / OFF, faulty indication, battery level static, Bypass ON, load Level, over Temperature Audible alarms, Mains failure, low battery, over load. (b) UPS must be IGBT based rectifier / IGBT / Charger. (c) Automatic Phase sequence should be at input side. (d) Battery cabinets should be matching with existing available at site and as directed. Note:- (i) Contractor shall provide three years written replacement warranty from date of completion for UPS (ii) Unit rate quoted against this item shall deemed to include cost of required inter connecting wires / cables. (iii) Unit rate quoted against this item shall deemed to include cost of taking down existing UPS system and shifting the same safely to AGE E/M No-II store yard including all arrangement of T&P, Manpower & transport. Make:- Microtek / Tata liebert / Luminous / MEGAPOWER / Fuji Electric Consul Neowatt Private Limited / Aplab / Kirloskar

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