Installation
Calculation of th e SF
6
gas f illing pressure
for using the p ressure gauge (tool)
L31--901EN/02
1/6
08--2000
E ALSTOM
Presentatio n
Introduction
SF
6
pressure values, for the filling, must obligatorily be read on the pressure
gauge 0--1 MPa (tooling). Pay no attention to indications given by the dial
densimeter (MPa -- psi), it is not accurate enough for the filling.
Pressure gauge 0--1 MPa
Pressure units
(reminder)
D The international unit pressure is the Pascal (Pa).
1 bar (14.503 psi) = 1,000 hPa
1 bar = 100 kPa
10 bar = 1 MPa
Symbols
IEC symbols for the apparatus technical characteristics.
Symbol Designation
p
re
Filling rated pressure for the insulation
p
ae
Alarm pressure for the insulation
p
me
Minimal pressure for the insulation
In this module
This module contains the following topics :
Topic Page
Example of the filling pressure calculation 2
Calculation of the filling pressure at site 3
Values of the SF6 gas pressures in accordance
with the temperature
4
To Next Page
Loading...
