For Standby Transformers - Maintenance Purposes - Pr 2021-14733

*The deadline for this tender has passed.

Tender Organisation:

METRO LIPA WATER DISTRICT

Tender Sector:

Industry-leather Tenders

Tender Service:

Worldwide

Tender Region:

Asian

Tender Country:

Philippines

Tender CPV:

9000001 : Asian bulk upload

Tender Document Type:

Tender Notice

Tender Description:

Request for Quotation RFQ For Standby Transformers - Maintenance Purposes - Pr 2021-14733Closing Date Time 22092021 500 PMArea of Delivery BatangasProcurement Mode ShoppingBrief 3 Pcs Distribution Transformer 25 Kva 240480 345 KvSpecsType Distribution TransformerPhase Single PhaseApplicable Standard Ieee Std C571200 Ieee Std C571220Ieee Std C571270Ieee Std C571290AnsiIeee Std C5792Nema Std Pub No TriAstm D3487Primary Voltage 34500grd Y19920 VTap Settings One 1 - 2 12 Taps above and Three 3 - 2 12 Taps below Rated Primary VoltageSecondary Voltage 240 480 VFrequency 60 HzKva Rating 25 KvaInsulation Level Hv SideGtImpulse Insulation 12 X 50 Micro WaveFull Wave Bil Crest 95 KvChopped Wave Crest 105kvMinimum Time to Flashover 18 Micro SecLow Frequency Voltage Insulation Level 60 Hz 1 Min RmsApplied Voltage Test 34kvInduced Voltage Test 17kvInsulation Level Lv SideFull Wave Bil Crest 30kvChopped Wave Crest 33kvMinimum Time to Flashover 10 Micro SecLow-Frequency Voltage Insulation Level 60 Hz 1 Min RmsApplied Voltage Test Rms 34kvInduced Voltage Test Rms 17kvPercent Impedance 20 10LossesReference Temperature 30 Degrees Celsius for No - Load Loss and 85 Degrees Celcius for Load LossTolerance for Actual Losses over Guaranteed Losses 10 for No- Load Loss and 6 for Total LossesLimit for Total Losses Silicon CoreNo- Load Loss 80 WLoad Loss 290 WShort Circuit Rating Per AnsiIeee C571200Loading Capability Per Ansi C5792Audible Sound Level Limit 48 DbConstructionCooling Class Oa or OnanCore Amorphous Metal or Silicon SteelCoil High Conductivity CopperPrimary Bushing Number 2Mounting Cover MountedVoltage Class 15 KvCreepage 255mm 10inColor Ansi 70 GrayDesignation H1 and H2Insulation Level 60 Hz Dry One - Minute Withstand 35 Kv60 Hz Wet Ten Second Withstand 30 KvImpulse Full Wave Dry Withstand 12 X 50 Micro Sec 95 KvArrangement Per Ieee Std C571220Secondary Bushing Number 4Mounting Side - Wall MountedInsulation Class 12 Kv Class 30 Kv BilDesignation X1 X2 X3 and X4Arrangement Per Ansi C571220Insulation Level60 Hz Dry One Minute Withstand 10 Kv60 Hz Wet Ten Second Withstand 6 KvImpulse Full Wave Dry Withstand 12 X 50 Micro Sec 30 KvBushing TerminalsType Tinned Copper - Alloy Eyebolt - Type Connector with Stainless Steel Spring WasherConductor Range 8mm2 Awg No8 Solid to 30 Mm2 Awg No 2 Stranded Copper ConductorLv BushingType Tinned Copper - Alloy Eyebolt - Type Connector with Stainless Steel Spring WasherTerminal Markings Per Ansi C571270Polarity AdditiveTankConstruction Sealed - Type with Steel Cover and Reusable GasketCover Grounding Copper Ground Strap Connected to the Tank Body Sized for the Short - Circuit Rating of the TransformerTank Grounding Teinned Copper Alloy Eyebolt-Type Connector to Accomodata 8mm2 Awg No8To 30 Mm2 Awg No 2 Stranded Copper ConductorsHv Neutral Grounding Tinned Copper Alloy Eyebolt Connector to Accomodota 8mm2 Awg No 8 to 30 Mm2 Awg No2 Stranded Copper ConductionsHv Neutral Grounding Tinned Copper Alloy Eyebolt ConnectorProvided with Removable Copper Ground StrapSupport Lugs Per Ansi C57 1220Lifting Lugs Permanently Attached near the Top of the Tank Designed with Safety Factor of 5Markings Kva Marking Painted in Black Using 75 Mm 3-Inch Block Letters and Numerals Located below the Low Voltage BushingTap ChangerDesign Provided with External Operating Handle Mounted on the Tank WallOperation Clockwise Direction from the Highest to the Lowest Tap PositionTap Changer MarkingsTap Position and Caution Sign Tap Position Marked with Reflectorized Non Weathering Decals at Least 25mm 10 Inch High With Numeral 1 Assigned to the Highest TapCaution Marking Do not Operate when EnergizedPressure Relief ValveDesign Provided with a Pull Ring for Manually Reducing Pressure to Atmospheric Leel Using a Standard Hot StickIt shall be Capable of Withstanding a Static Pull Force of 1134 Kg 25 Pounds for One Minute without Permanent DeformationVenting Pressure 69 Kpa 10 Psig 13 Kpa Gauge 2 Psig Resealing Pressure 42 Kpa Gauge 6psig MinimumZero Leakage from Reseal Pressure Top -56 Kpa Gauge 8psigFlow at 103 Kpa Gauge 15 Psig 165 Ls 35 Scfm Minimum Corrected for Air Pressure of 101kpa 147 Psi Absolute and Air Temperature of 21 Degrees CelciusEnclosure Integrity Cpmplete Assembled Transformer Enclosure shall be of Sufficient Strength to Withstand Pressure 49 Kpa Gauge 7psig without Permanent DistortionCan Withstand an Internal Pressure of 138 Kpa Gauge 20 Psig without Rupturing or Displacing Components Excluding the Cover Gasket and Gasket Oil Leaks of the TransformerInsulating Liquid Unused Mineral Oil Meeting the Requirements of the Latest Revision of Astm D3487Hardware Bolts Nuts and Washer All Energized Hardware shall be Made of Tinned Copper Alloy MaterialAll Other Hardware shall be Hot -Dip GalvanizedNameplate Material StainlessInformation Serial NumberClassNumber of PhasesFrequencyVoltage RatingKva RatingTemperature Rise OcPolarityPercent ImpedanceBilTotal Weight KgConnection DiagramName of ManufacturerInstallation and Operating Instruction ReferenceThe Word TransformerType of Insulating Liquid Generic NameConductor Material for each WindingEquipment Identification Number TestRoutine Test Winding Resistance Measurement TestsRatio TestPolarity Test and Phase RelationNo-Load Losses and Excitation Current at Rated Voltage and FrequencyImpedance Voltage and Load Loss MeasurementInduced Potential Test Low Frequency Dielectric TestDielectric Test of Insulation OilMechanical Leak TestDesign Or Type TestCertified Test Report to be SubmittedTemperature RiseLightning ImpulseInsulation Power FactorInsulation ResitanceShort - Circuit CapabilityNote Include the Damage Curve for each Kva RatingManufacturers CertificateManufacturers WarrantySuppliers WarrantyIso Certificate Distribution Transformer Manufacturer

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