MR VACUTAP VM I 1002, Руководство по эксплуатации, Страница: 62 / 82

8 Technical data
Maschinenfabrik Reinhausen GmbH 2020 62 4360571/02 EN VACUTAP
®
VM
®
Electrical data for VACUTAP® VM III
On-load tap-changer VM III 650 Y
Max. rated through-current I
rm
[A] 650
Rated short-time current [kA] 6.5
Rated duration of short-circuits [s] 3
Rated peak withstand current [kA] 16.25
Max. rated step voltage U
irm
[V]
1)
3,300
Step capacity (P
StN
) [kVA] 1,625
Rated frequency [Hz] 50...60
Table 10: Electrical data for VACUTAP® VM III
1)
The maximum rated step voltage may be exceeded by 10% due to overex-
citation of the transformer if the step capacity is limited to its rated value.
Mechanical data for VACUTAP® VM I II III
Number of operating positions Without change-over selector: maximum 18
With change-over selector: maximum 35
Number of equipped sectors 1…3
Selector sizes RC/RD/RDE
Dimensions See dimensional drawings
Weight
Displacement and oil volume
Table 11: Mechanical data for VACUTAP® VM I II III
8.1.2 Permissible ambient conditions
Air temperature during operation - 25 °C…+ 50 °C
Oil temperature during operation - 25 °C…+ 105 °C (up to + 115 °C when the transformer is in
emergency operation)
Transport temperature, storage temperature - 40 °C…+ 50 °C
Drying temperatures See installation and commissioning instructions, chapter "As-
sembly"
Compressive strength See technical data TD 61 – general section
Alternative insulating liquids Natural ester liquid (IEC 62770) on request
Synthetic ester liquid (IEC 61099) on request
Installation height of the oil conservator See technical data TD 61 – general section
Installation height above sea level See technical data TD 61 – general section
Table 12: Permissible ambient conditions