PT. TRAFOINDO PRIMA PERKASA Spec. No. PT.
TRAFOINDO PRIMA PERKASA
Kantor : Jl. Hayam Wuruk 4 FX Jakarta 10120 Phone : 3451384,3850703,3861865 ; Fac. : 3850702,3861869
Pabrik : Jl. Siliwangi (Pasar Kemis), Desa Gembor, Kecamatan Jatiuwung, Tangerang 7. APPROXIMATE WEIGHT AND DIMENSION WITHOUT PACKING : to be informed later on
e-mail : trafo@trafoindonesia.com ; http : //www.trafoindonesia.com 7-1 The outline drawing of the transformer will be submited to customer
SPECIFICATION FOR TRANSFORMER
8. ACCESSORIES : The transformer will be furnished with all necessary accessories as follow :
To. Date 31 AUGUST 2018
Spec No. GENERAL ACCESSORIES SPECIAL ACCESSORIES
- HV Porcelain Bushing on Cover √ Plug in Bushing 50 mm2 c/w straight connector on cover
1. TYPE KNAN : Oil immersed self cooled / in / out door use / step-up / step-down / hermetically sealed √ LV Porcelain Bushing on Cover
distribution transformer - Oil Level Indicator w/o Contact √ Integrated Safety Device c/w Contact
- Thermometer w/o Contact - Magnetic Oil Level Gauge c/w Alarm Contact
2. SERVICE CONDITION : The transformer will be installed at the altitudes below 1.000 meters and the maximum √ Manual Off-Load Tap Changer - Dial Thermometer c/w Alarm & Trip Contact
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ambient temperature does not exceed 40 C √ Name Plate - Buchholz Relay c/w Alarm & Trip Contact
√ Earth Terminal - Conservator c/w Sampling Valve
3. STANDARD : The transformer is designed, manufactured and tested in accordance with : √ Radiator - Breather c/w Silicagel
IEC 600-76 / SPLN 50 / 97 / SLI 1985 √ Drain Valve - Air-filled LV Junction Box
- Sampling Valve - HV/LV Cable Box
4. RATING √ Lifting lug - N2 Filling Valve
4-1 Number of Phase : 3 phase 4-2 Frequency : 50 Hz - Jacking Lug - Pressure Vacuum Gauge c/w Bleeder
4-3 Primary Voltage : 20 kV 4-4 Secondary Voltage : 400 Volt √ Roller - Pressure Relief Valve w/o Contact
Winding Connection : DELTA Winding Connection : WYE - Square Hole - Pressure Relief Device c/w Alarm Contact
4-5 Rated Capacity (total) : 1,250 kVA - Skid Base (Pad Mounted) - Radiator Fans
Incase of double primary voltage, Capacity will be : - Hanger ( Pole Mounted ) - Radiator Valves
at : - kV Rated Capacity : - kVA √ Oil Filter Valve - Terminal Control Box
at : - kV Rated Capacity : - kVA - Voltage Change Over Board - Neutral CT
Incase of double secondary voltage, Capacity will be : - Thermometer Pocket
at : - V Rated Capacity : - kVA - Winding Thermometer c/w Alarm & Trip Contact
at : - V Rated Capacity : - kVA - CT for Winding Thermometer
4-6 Additional Taps on High Voltage : +/- 2.5 % & +/- 5 % ( 5 Taps ) - Sudden Pressure Rise Relay + Seal in Relay c/w Alarm & Trip Contact
9. ADDITIONAL INFO : - Ladder
5. POLARITY AND PHASOR RELATIONSHIP : The transformer will be subtractive polarity for single phase and
phasor relationship for three will be Dyn-5 DESCRIPTION
6. ELECTRIC PERFORMANCE :
Primary Voltage Secondary Voltage
6-1 Insulation Class : 24 kV 1.1 kV
6-2 Basic Impulse Level : 125 kV - kV
6-3 Applied Voltage Test During 1 Minute : 50 kV 3 kV
6-4 Induced Voltage Test : Apply 2 times of the rate voltage at 350 cycles per second for 18 second
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6-5 Temperature Rise : The coil temperature rise measured by resistance method will not exceed 65 C
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and the oil temperature rise will not exceed 60 C
6-6 Losses at Rated Voltage 20 / 0.4 kV
No Load Losses : 2,000 Watt Note : - FR-3 Fluid
Load Losses ( at 75 °C ) : 15,000 Watt
Total Losses : 17,000 Watt
6-7 Efficiency at % Rated Capacity : 100 75 50 25 %
at P.F. = 1,0 : 98.66 98.90 99.09 99.07 %
6-8 Exciting Current / Off load Current at Nominal Voltage : 2.00 % Date of Approval :
6-9 Percent Impedance : 5.50 % PROPOSER :
6 - 10 Voltage Regulation at P.F. = 1,0 : 1.34 %
Voltage Regulation at P.F. = 0.8 : 4.24 % hp
P180949 - Af
