14 Technical data
Maschinenfabrik Reinhausen GmbH 2021
121
8209941/00 EN
ECOTAP
®
VPD
®
III 30D-24 / MD&C
14.5 Limit values for dielectric strength and water content of on-
load tap-changer oil
The following table provides the limit values for dielectric strength (measured
in accordance with IEC 60156) and water content (measured in accordance
with IEC 60814) of the on-load tap-changer oil for the ECOTAP® VPD® on-
load tap-changer. The values have been established based on IEC 60422.
U
d
H
2
O
When commissioning the transformer for
the first time
> 60 kV/2.5 mm
< 12 ppm
During operation
> 30 kV/2.5 mm
< 30 ppm
Table 31: Limit values for on-load tap-changer oil
14.6 Technical data of the control unit
Permissible voltage range
Note: The measured voltage is
the supply voltage
U
N
: 100...240 VAC
Measuring range: 100...240 V AC
Measuring accuracy (at U
N
= 100 V (-25...
+70 °C): < ±2.00%
Measuring accuracy (at U
N
= 240 V (-25...
+70 °C): < ±0.85%
Intrinsic consumption: 7.5 W
Permissible frequency range
50/60 Hz
Overvoltage category
IV
Input current
Max. 1.5 A at 100 V AC
Max. 0.63 A at 240 V AC
Power consumption
Max. 150 W
Internal fuse (F1)
Fine-wire fuse, 6.3 x 32 mm, min. 250 V, T4A
Nominal voltage of the control cir-
cuit
24 V DC
Nominal current of the control cir-
cuit
5 A
Duration of the tap-change opera-
tion
Approx. 420 ms
Table 32: Electrical data
Operating temperature
-25 °C...+50 °C (continuous)
-25 °C...+70 °C (max. 2 h per day)
Storage temperature
-25 °C...+85 °C
Relative humidity
10...95% non-condensing
Air pressure
Corresponds to 2000 m above sea level
Degree of protection
Standard: IP30
With control cabinet: IP54
Содержание ECOTAP VPD 3 30D-24
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