TF706312342:
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 | 630 kVA |
---|---|
Rated primary voltage | 12 300 V |
Rated secondary voltage (off load) | 420 V |
Standard technical specifications
- Cooling: ONAN (natural)
- Thermal classification-(Heatings) oil and windings: A- 65/60 K
- Max. ambient t°: 90°C
- Rated primary voltage (one primary voltage such as): +-2,5+-5%
- Max. rated primary insulation level: 17,5 kV
- Vector group: Dyn11
- Frequency: 50 Hz
- No load losses: 54 W
- On load losses by 75°C: 4600 W
- Impedance voltage: 4%
- Voltage drop at full load:
- At P.F. =1: 0,81%
- At P.F. =0,8: 2,98%
- Efficiencies To confirm: 4/4 3/4 2/4 1/4
- By cos phi=1: 99,16 99,30 99,41 – %
- By cos phi=0,8: 98,95 99,13 99,26 – %
- Noise level:
- Acoustic pressure at 1 m (Lp): 41 dBA
- Acoustic power level (Lw): 51 dBA
- Overall dimensions: L x W x H: 1260 x 850 x 1745 mm
- Total weight: 2450 Kg
- Oil weight: 345 Kg
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
- Ester oil or similar in accordance with the standard IEC60296 class II
- Welded 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