8 Technical data
Maschinenfabrik Reinhausen GmbH 2020
229
7545652/00 EN
VACUTAP
®
VR-Ex
Maximum rated step voltage
U
irm
[V]
6 000
6 000
6 000
12 000
2)
12 000
2)
Step capacity P
stm
[kVA]
3 000
6 000
12 000
6 000
12 000
Rated frequency [Hz]
50…60
Table 18: Electrical data for VACUTAP® VRH/VRX I/II/III
1)
Forced current splitting by two parallel winding branches required. Not for
electrical arc furnace operation.
2)
Double the number of windings needed
Mechanical data for VACUTAP® VR
Number of operating positions
Without change-over selector: maximum 18
With change-over selector: maximum 35
With multiple coarse change-over selector: maximum 107
Number of equipped sectors
1…3
Selector sizes
R selectors: RC, RD, RDE, RE, RF, RES
M selectors: B, C, D, DE
Dimensions
Weight
Displacement and oil volume
Table 19: Mechanical data for VACUTAP® VR
8.1.2 Permissible ambient conditions
Air temperature during operation
-25°C…+50°C
Temperature of the insulating fluid in operation
Insulating fluid in accordance with IEC 60296: -25°C…+105°C
(when the transformer is in emergency operation based on IEC
60076-7, up to +110°C in accordance IEC 60214-1)
Synthetic ester liquid in accordance with IEC 61099: -15°C…
+105°C (when the transformer is in emergency operation, up to
+115°C)
Transport temperature, storage temperature
-40°C…+50°C
Drying temperatures
See installation and commissioning instructions, "Assembly"
chapter
Compressive strength
See technical data TD 61 – General Section
Alternative insulating fluids
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 20: Permissible ambient conditions
