China 11kv 132kv 35mva 40mva 50Hz 60Hz Power Transformer

SPECIFICATION 2.4.1 TECHNICAL SPECIFICATION FOR STEP UP POWER TRANSFORMER35/40MVA STEP UP TRANSFORMER35/40MVA STEP UP TRANSFORMERSl. No. ParticularsFactory DataFactory Data1.0 GENERAL 1.1 Name of Manufacturer HEMG1.2 Description The specification refers to a Three Phase Oil immerged ONAN/onAF Cooling according to VDE/IEC/DIN/BS Standard. 2 Rated KVA35000/4000035000/400003 No Load Voltage Ratio6.6/132KV6.6/132KV4 No. of Phase HT -3 , LT - 3HT -3 , LT - 35 Cooling ONAN/ONAF ONAN/ONAF6 Installation OutdoorOutdoor7 Frequency 50 Hz50 Hz8 Winding connection and material Star-Delta, Copper Star-Delta, Copper9 Vector Group Ynd1Ynd110tap- Range +10% to -20% at HV side.+15% to -15% at HV side. - No. of steps/POS 24 Steps, 25 Position 24 Steps, 25 Position - Variation per step, %1.25%1.25%11 Temperature rise, Deg. C- Top oil 50 0C 50 ºC - Winding 55 0C55 ºC12 Total loss at rated voltage at principal tapping and rated frequency, kW192.22190.2213 Component losses, kW- No load loss at rated voltage at principaltapping and rated frequency, kW3028 - Load loss at rated current at principal tapping at 75 Deg. C160(122 ONAN)160(122 ONAN) - Auxiliary Loss2.222.2214 Impedance at rated current for principal tapping, % 11.35%11.5%15 No load current at rated voltage and frequency, Amps 16 Full wave lightning impulse withstand kVp 650 HV/ 70LV650 HV/ 95 LV17 Efficiency at 75 Deg. C at unity power factor, %- At full load99.682499.52% - At 75% load 99.683399.50% - At 50% laod99.685299.45%18 Regulation at full load- At unit pf 44 - At 0.8 lagging pf10.0110.0119 Details of tap changer- MakeHuaming ChinaHuaming China - Type- Range +10% to -20% at HV Side.+15% to -15% at HV side.20 No. of steps/Position 24/2524/25 a) Rated Voltage, kV 132 kV72.5 kV b) Step Voltage, V 1.25%1000-1500V21 Terminal arrangement- HV Bushing - LV Bushing - Neutral Bushing 22 Approximate masses, Kg- Core & Windings 2930031600 - Tank, fittings & accessories 1920012000 - Oil 1450012000 - Total630005560023 Heaviest package, Kg49050(WITH OIL)50000(WITH OIL)24 Overall dimensions 6260*4950*5380mm(L*W*H)25 Auxiliary power voltage AC3-phase, 220-240/415-440V, 50Hz3-phase, 220-240/415-440V, 50Hz 1-phase, 220-240Vac, 50Hz1-phase, 220-240Vac, 50HzDC110Vdc110VdcFITTINGS & ACCESSORIES: The following fittings and accessories will be YESYESprovided along with the main transformers.YESYES1Rating and diagram plateYESYESa) Two (2) Nos. safety earthing terminals fortransformer tank and radiator banksYESYESb)Lifting lugsYESYESc)Jacking padsYESYESd)Skids e)Pulling eyesYESYESf) Terminal marking plate g) Conservator (main chamber and OLTC chamber) with filling cap. drainYESYESvalve, vent pipe and equaliser connection.YESYESh)RTCC Panel i)Magnetic type oil level indicator with 150mm dia dial and alarmYESYESinitiating contacts for low and high oil levels.YESYESj) Explosion vent with double diaphragmYESYESk)Inspection coverYESYESl)Pressure relief deviceYESYES- Air release devices - De-hydrating breather complete with 1st fill of activated alumina orYESYESsilica gel - 150 mm dial type oil temperature indicator with alarm and tripYESYEScontacts and maximum reading pointer. - 150 mm dial type winding temperature indicator with alarm & tripYESYEScontacts and maximum reading pointer. - Double float Buchholz relay with alarm and trip contacts, tests,YESYEScocks and window to view the trapped gas. - Oil drain valve at bottom.YESYES- Oil sampling valves at top, middle and bottom.YESYES- One (1) shut-off valve each, on either side of Buchholz relay.YESYES- Sampling gas collectors for Buchholz relay at accessible height.YESYES- Bank of radiators with isolating valves at top and bottom for connections between the transformer tank and radiator banks.YESYES- Plain oil level gauge.SIZE DESIGN AS PER USSIZE DESIGN AS PER US- Bi-directional flanged rollers suitable for 1676 mm gauge.2000x14352000x1435- Weather proof marshalling box for housing dial type temperature indicators, terminal blocks etc. and complete with toughened glass window, space heater, internal illumination etc. The wiring from various accessories / fittings to marshalling box will be by 1.1 kV grade PVC insulated, sheathed and armoured copper conductor cable of size 2.5 sq.mm. Marshalling box shall be mounted on the transformerYESYEStank and not on radiator banks. - Climbing rungs or ladder.YESYESX HV neutral bushingTERMINAL BOX SHOW WTI OTITERMINAL BOX SHOW WTI OTI- WTI CT terminal box - Earthing terminal with M12 tapped holes x HV and LV cable boxes with bushingsLT bushing up outline with flange,HT CANCELLT bushing up outline with flange,HT CANCEL- On Load Tap Changer (OLTC) with oil surge relay, RTCC, AVR - Oil filler pipe with cap for transformer conservator and OLTC Chamber (50 mm dia). CT HV CT: 200/1 , 15 VA, 5P 20HV CT: 300/1 , 15 VA, 5P 20 1PC/PHASEHV CT: 100/1 , 15 VA, 5P 20 1PC/PHASEHV Neutral CT: 200/1-1. (Two core) 15 VA 5P 20 for REF & SEFHV N CT: 300/1 15 VA 5P 20 1PC/PHASEHV N CT: 100/1 15 VA 5P 20 1PC/PHASELV CT : 2400/1, 15 VA, 5P20LV CT : 4000/1, 15 VA, 5P201PC/PHASELV CT : 1200/1, 15 VA, 5P20 1PC/PHASEWTI CT: 1837/5 A (Depends on your WTI)WTI CT: 300/5 AWTI CT: 100/5 A