ABB SafePlus User Manual

23
SF
6
-gas temp Absolute filling
pressure
o
C mbar
0 1305
5 1328
10 1352
15 1376
20 1400
25 1424
30 1448
35 1472
40 1496
13.2 ALTITUDE
Max height above sea level for installation without reducing
gas pressure is 1500 meters. In the interval from 1500 to
2500 meters, gas pressure has to be reduced according to
the above figure. For installation above 2500 meters, please
contact ABB for instructions.
13.2.1 ADJUSTMENT OF GAS PRESSURE IN HIGHER
ALTITUDES
Remove the front cover in order to get access to the top of
the manometer. On top of the manometer, a screw is situa-
ted. Open this screw carefully until the arrow starts moving.
When the movement stops, tighten the screw again. Now the
pressure is equalized and unless there is a leak (which is very
unlikely) the arrow will be positioned at the correct level.
Top screw for adjusting
pressure in higher altitudes
Altitude
1,45
1,4
1,35
1,3
1,25
1,2
1,15
1,1
1,05
0
500 1000
2000
1500
1
Filing pressure Bar abs
30
o
C
20
o
C
10
o
C

ABB SafePlus Specifications

General

Rated voltage	Up to 24 kV
Rated current	Up to 1250 A
Insulation medium	SF6 gas
Rated Lightning Impulse Withstand Voltage	125 kV
Standards	IEC 62271-200
Dimensions	Varies by configuration
Weight	Varies by configuration
Short-time withstand current	Up to 25 kA