Areva HVX -F, Installation Operation & Maintenance

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3 Technical data
3
4
1
2
Rated voltage U
r
[kV] 12 17,5
Rated lightning impulse withstand voltage U
p
[kV] 75 95
Rated power frequency withstand voltage U
d
[kV] 28 38
Rated operating current I
r
max.
[A] 3150 1)
Rated cable-charging breaking current I
c
[A] 25 31,5
Rated short-circuit breaking current I
sc
max.
[kA] 50
Rated short-time current I
k
max.
[kA] 50 (3 s)
Rated frequency f
r
[Hz] 50/60
8
3.1 Type designation
The type designation on the name-
plate (Fig. 2.1) specifies essential
technical data. The type designation
(1) is broken down in this example.
The following data on the nameplate
are relevant for replacement or in
case of any queries:
•
Type designation (1)
•
Serial number (2)
•
Year of construction (3)
Fig. 2.1
Nameplate
1 Type
designation
2 Serial number
3 Year of construction
4 Technical
data
3.2 Technical data
1)
Higher rated currents possible on request (with fan)
Example HVX 12 - 50 - 12 - E
Series HVX
Rated voltage 12 kV
Rated short-circuit breaking current 50 kA
Rated normal current 1250 A
F: fixed type
E: Withdrawable unit