TF704015342:
Three-phase oil distribution transformer
In accordance with the standards
EN 50588-1 AAoAk
Eco design (Eu) 548-204 TIER 2
CEI 60076-1
Extra reduced losses AAoAk
Rated power | 400 kVA |
---|---|
Rated primary voltage | 15 375 V |
Rated secondary voltage (off load) | 420 V |
Standard technical specifications
- Cooling: ONAN (natural)
- Thermal classification-(Heatings) oil and windings: A- 60/65 K
- Max. ambient t°: 40°C
- Rated primary voltage (one primary voltage such as): 15375 V
- Primary off load voltage regulation: +-2,5+-5%
- Max. rated primary insulation level: 17,5 kV
- Rated secondary voltage: 420 V
- Vector group: Dyn11
- Frequency: 50 Hz
- No load losses: 387 W
- On load losses by 75°C: 3250 W
- Impedance voltage: 4%
- Voltage drop at full load:
- At P.F. =1: 0,89%
- At P.F. =0,8: 3,03%
- Efficiencies To confirm: 4/4 3/4 2/4 1/4
- By cos phi=1: 99,07 99,22 99,04 – %
- By cos phi=0,8: 98,84 99,03 99,17 – %
- Noise level:
- Acoustic pressure at 1 m (Lp): 39 dBA
- Acoustic power level (Lw): 49 dBA
- Overall dimensions: L x W x H: 1250 x 820 x 1590 mm
- Total weight: 1940Kg
- Oil weight: 320Kg
Fittings
Standard fittings:
- 3 HV Plug in Bushings fixed part only
- 4 LV DIN porcelain Bushings with their cable clamps
- 2 earthing terminals
- 2 lifting lugs
- 1 rating plate Cotrabel Dutch/French
- 1 filling plug
- 1 combined drain and sampling valve Type DIN
- 1 DMCR
- 4 bi-directional flat rollers
Execution
- Hermetical sealed type
- Mineral oil in accordance with the standard IEC60296 class II
- Bolted cover
- Overloads in accordance with the standard IEC 60354
- Tolerances in accordance with the standard IEC 60076-1
- Aluminium windings
Remark
Po and Pcc losses without tolerances (Commission Regulation(EU) N° 548 of 21st May 2014.