China 34.5kv V3 Pole Mounted Single Phase Self Protect Power Source Transformer for Recloser

SINGLE PHASE DISTRIBUTION TRANSFORMERS - AUTO PROTECTED - VARIOUS CAPACITIES FOR 35,5kV PARAMETERSPECIFICATION REQUIREDSPECIFICATIONS OFFEREDPage. Ref.1.GENERAL CHARACTERISTICS 1.1Transformer ClassDistributionDistribution 1.2Transformer TypeSingle phase - Self-protectedSingle phase - Self-protected
1.3Manufacturing StandardsINEN NTE - National norm ANSI C.57.12 and INEN 2114INEN NTE - National norm ANSI C.57.12 and INEN 2114 1.4Country of Manufacture specifyspecify 2.TERMS OF SERVICE 2.1ServiceExterior - ContinuousExterior - Continuous
2.2MountingIn postIn pole 2.3Type of coolingONANONAN 2.4Height above sea level (masl)0 - 30001000 2.5Minimum ambient temperature4°C4°C 2.6Maximum ambient temperature40°C40°C 2.7Average ambient temperature30°C30°C 2.8Relative Media Moisture80%80% 3.CHARACTERISTICS OF THE PARTS3.1CORE CHARACTERISTICS3.1.1Material Silicon steel grain oriented and cold rolled or other magnetic materialSilicon steel grain oriented and cold rolled or other magnetic material
3.1.2Construction (rolled or stacked)
()SpecifyRolled 3.1.3weightSpecify15kva:66kG
25kva:95kG
37.5kva:120kG
50kva:150kG 3.1.4Method of fixing the core to the tankSpecifyBolt fixed 3.2CHARACTERISTICS OF WINDINGS3.2.1Material used in primary and secondary coils Copper Copper 3.2.2insulating paperNorm ANSI / ASTM A 1305Norm ANSI / ASTM A 13053.2.3TypeSpecifyWinding 3.2.4Class of InsulationAA 3.3CHARACTERISTICS OF OIL3.3.1Liquid mineral insulating and cooling, new norm NTE INEN 2133-98Norm ANSI / ASTM A 1305 3.3.2Typeinhibitedinhibited 3.3.3Dielectric Strength (kV)norm ASTM D 877inhibited 3.3.4Free PCBEnvironmental norm Standard D 4059Environmental norm Standard D 4059 3.4TANK CHARACTERISTICS3.4.1Material Carbon steel sheetEnvironmental norm Standard D 4059 3.4.2Typecylindricalcylindrical
3.4.3Pressure limits without deformation (kgf / cm2) From - 65 to + 65cylindrical
3.4.4Cover attachment to tankBand bolted closure and packaging / No welded
/Ring fasten type
3.4.5Regional sequential number 6.5 x 4.2 x 1.0 cm. Five Digits red reflective adhesive Arial type letterFive Digits red reflective adhesive Arial type letter 3.4.6Initials CNEL _____ Recorded in the tank, in high or low relief and / or adhesiveRecorded in the tank, in high or low relief and / or adhesive 3.4.7Identification of the nominal power of the transformer leEctric Blue, Arial, Size 7 x 3.5 x 1 cm visible from the groundYES 3.4.8Painting ASTM norm B117-3396 NTC ASTM G 154YES 3.4.8.1anticorrosive Material specifyPainting 3.4.8.2Paint MaterialspecifyRESIN 3.4.8.3Paint thicknessnorm NTC 339680μm 3.4.8.4Color paint finish Light gray similar to RAL series 70Light gray similar to RAL series 70 3.4.8.5Method paint finishspecifyPainted 3.4.8.6Degree of adhesionAccording 4A (ASTM D3359)Light gray similar to RAL series 70 3.4.8.7For non-PCB dielectric oilGreen Circle Sticker 10cm фGreen Circle Sticker 10cm ф 3.4.8.8Tank top (lid)Provided with an adequate slope to prevent water stagnationProvided with an adequate slope to prevent water stagnation 3.5CHARACTERISTICS OF PASS CAPS (BUSHINGS)3.5.1applicable standard ANSI C57.12.20, IEC 137, ANSI C76.1ANSI C57.12.20, IEC 137, ANSI C76.1 3.5.2Settings bushings MT Indoors with one lock nut Indoors with one lock nut 3.5.3Material - Bushings Medium and Low Voltage :PorcelainPorcelain 3.5.4Number of bushings BT 33 3.5.5Number of bushings MT11 3.5.6Insulation class - Medium Voltage Bushings 34,5 kV34,5 kV 3.5.7Insulation class - Low Voltage Bushings1,2 kV1,2 kV 3.5.8Number of Connectors for earth leakage tank type eye 11 3.5.9Terminal Type eyeeye 3.5.10Material terminalUniversal para cobre - aluminioUniversal para cobre - aluminio 3.6ACCESORIOS3.6.1Transformer mounting brackets Norm NTE INEN 2139Norm NTE INEN 2139 3.6.2Ears to lift the transformer NormNorm 3.6.3Tap changer with external drive 5 posiciones5 posiciones 3.6.4Domestic oil level indicator Norm NTE INEN 2139Norm NTE INEN 2139 3.6.5Pressure Relief Valve Norm Norma NTE INEN 2139 - NTC 3609Norm Norma NTE INEN 2139 - NTC 3609 3.6.6Alarm pilot light externally changeable without suspension (for self protected) Above the oil level. anti-rotation lock,Above the oil level. anti-rotation lock 3.6.7Nameplate Norm NTE INEN 2130 / 2139Norm NTE INEN 2130 / 2139 3.6.8Location of the terminal Norm NTE INEN 2139Norm NTE INEN 2139 4.ELECTRICAL CHARACTERISTICS4.1FREQUENCY CHARACTERISTICS, REGULATION4.1.1Rated frequency (Hz) 6060 4.1.2Position of the primary winding taps. +1 a - 3 x 2,5%. +1 a - 3 x 2,5% 4.1.3rated Power 25-37,5-50 KVA25-37,5-50 KVA 4.1.4IEC Connection Group Ii0Ii0 4.1.5polarity Subtractive Subtractive 4.1.6Transformation ratio at nominal tap19920 V/ 120-240V 19920 V/ 120-240V 4.1.7Nominal line voltages: primary winding 34500 V GRDY / 19920 V 34500 V GRDY / 19920 Vsecondary winding 120 / 240 V120 / 240 V 4.1.8Maximum level of audible sound in nominal conditions:48 dB (according to norm NEMA TR1)48 dB (according to norm NEMA TR1) 4.2NSULATION CHARACTERISTICS4.2.1Basic Insulation level - NBA (BIL) NTE INEN 2125 / 2127NTE INEN 2125 / 2127 4.2.2primary 150 kV pico150 kV pico 4.2.3secondary 30 kV pico30 kV pico 4.2.4Test voltage applied NTE INEN 2125 / 2127NTE INEN 2125 / 2127 4.2.5Induced voltage test NTE INEN 2125 / 2127NTE INEN 2125 / 2127 4.3FUNCTIonIN IN ALTITUDE AND TEMPERATURE ConDITIONS TO DIFFERENT STANDARDIZED4.3.1Overload Capacity ANSI, IEEE Std. C57.91ANSI, IEEE Std. C57.91 4.3.2Increase allowable temperature NTE INEN 2119NTE INEN 2119 4.3.3Heating limitsNTE INEN 2126 / 2128NTE INEN 2126 / 2128 4.4MAXIMUM PERMISSIBLE LEVELS OF LOSS4.4.1Load losses at 100% of rated voltageNTE INEN 2113 / 2114:
25 KVA: ≤ 185 W
37,5 KVA: ≤ 229 W
50 KVA: ≤ 267 WNTE INEN 2113 / 2114:
15 KVA: ≤ 165 W
25 KVA: ≤ 185 W
37,5 KVA: ≤ 229 W
50 KVA: ≤ 267 W 4.4.2 Winding losses at rated load (85 ° C)
85NTE INEN 2114 / 2116:
25 KVA: ≤ 360 W
37,5 KVA: ≤ 488 W
50 KVA: ≤ 606 WNTE INEN 2114 / 2116:
15 KVA: ≤ 320 W
25 KVA: ≤ 360 W
37,5 KVA: ≤ 488 W
50 KVA: ≤ 606 W 4.4.3Total losses at full load (85 ° C)
85NTE INEN 2114:
25 KVA: ≤ 545 W
37,5 KVA: ≤ 717 W
50 KVA: ≤ 873 W NTE INEN 2114:
15 KVA: ≤ 502 W
25 KVA: ≤ 545 W
37,5 KVA: ≤ 717 W
50 KVA: ≤ 873 W 4.4.4Impedance (85 ° C)NTE INEN 2116: 4.0 %NTE INEN 2116: 4.0 % 4.4.5Excitation current (max.)% InNTE INEN 2113 / 2114:
25 KVA: 2.4 % In
37,5 KVA: 2.0 % In
50 KVA: 2.0 % InNTE INEN 2113 / 2114:
15 KVA: 2.4 % In
25 KVA: 2.4 % In
37,5 KVA: 2.0 % In
50 KVA: 2.0 % In 4.5PROTECTIONS4.5.1OVER CURRENT PROTECTIONS: In medium voltageImmersed fuse oil expulsionImmersed fuse oil expulsion In low voltage Disyuntor inmerso en aceite, acción con pértiga. Tipo monoblockDisyuntor inmerso en aceite, acción con pértiga. Tipo monoblock Maximum rated voltage (kV)0.600.60 Rated breaking capacity (kA) 1111 Maximum MCOV (kV)0.600.60 Rated current (A)25 KVA: 104.17 A
37,5 KVA: 156.25 A
50 KVA: 208.33 A15 KVA: 75.17 A
25 KVA: 104.17 A
37,5 KVA: 156.25 A
50 KVA: 208.33 A 4.5.2PROTECTIONS OVERVOLTAGE:4.5.2.1LIGHTNING ROD MEDIUM VOLTAGE Type Silicone rubber Silicone rubberClass distribution distributionManufacturer specifyspecify Breaking Capacity 10 KA10 KA Max. Nominal voltage 27 kV27 kV Breaking Capacity 10 kA10 kA Max. Continuous operating voltage MCOV 22 kV22 kV Max. Discharge voltage at 10 kA86.60 kV86.60 kV rules applicable ANSI C62.22 or equivalentANSI C62.22 or equivalent Cable Connector 4-2 AWG4-2 AWG Connector for land > 2 AWG> 2 AWG Disconnect visible action failsobligatoryobligatory Cover avifauna1 por polo1 por polo 4.5.2.2BT LIGHTNING ROD Type SpecifySilicon rubber Max. Nominal voltage 0.48 kV0.48 kV Breaking Capacity 10 kA10 kA rules applicable SpecifySpecify Maximum continuous operating voltage (MCOV) 0.48 kV0.48 kV Maximum discharge voltage at 10 kA1.9 Kv1.9 Kv 4.6Certificate / test protocols NTE INEN 2138NTE INEN 2138 5.WEIGHTS AND DIMENSIONS 5.1Total weight including oil and AccessoriesSpecify15kva:190kG
25kva:250kG
37.5kva:320kG
50kva:370kG 5.2Dimensions includingSpecify15kva:664X624X1225
25kva:714X674X1245
37.5kva:734X694X1285
50kva:814X750x1355