| Transformer Range |
Rated power: 30 kVA
Rated frequency: 50 Hz
Rated primary voltage: 19000 V
Rated secondary voltage: 460/230 V
Type of oil preservation system: Permanantly sealed without gas-cushion
Operation duty : continuous operation(Type DB): Yes
Max. temperature rise of winding, at full load: 65.0 K
Max. temperature rise of top oil, at full load: 60.0 K
Primary tapping : off-circuit condition: yes
Number of steps of primary tapping: 4.0 Steps
Percent of rated voltage of each tapping: +/ - 2x2.5%
Short-circuit impedance at 75 celsius&Tolerance: 2.0 +/- 10 %
Losses, for each transformer unit
No-load loss plus positive tolerance: 120 W
Load loss, plus positive tolerance, at 75 celsius: 430 W
Efficiency in %, 75 celsius and at load :
1/2 of rated power and P.F.=1.0 : 99 %
1 of rated power and P.F.=1.0 : 98.2 %
Voltage regulation at P.F.=1.0 : 1.4 %
Method of cooling: ONAN
Total cooling surface 1.5 square m
Brand of oil used for initial filling: NYNAS, Shell
Completely assembled transformer shall withstand, without
permanent deformation, a maximum pressure of : 0.7 kg/square cm
Colour of tank : grey Yes
Quantity of oil filling: 112 liter
Mass of core: 122 kg
Mass of winding: 33 kg
Mass of the part liftable from tank: 188 kg
Mass of complete transformer with oil: 334 kg
Dimensions of transformer
Overall height: 1432 mm
Overall width: 590 mm
Overall depth: 492 mm
Height over cover: 550 mm