C
OMMISSIONING
OI 250 (EN)
REV7
/REV6
7.3
Filling the Breaker with Gas
As an option, the circuit breaker may be equipped with a separate
density monitor for each pole. The respective operations must then
be carried out for each pole.
• Connect the filling hose of the gas-filling device (gas cylinder with
pressure-reducing valve or gas handling cart) to the central
supply connection (DILO DN8 coupling).
• Fill the circuit breaker gradually until rated pressure is reached.
Never set the pressure-reducing valve higher than the rated
breaker pressure.
• After a temperature equalization period of approximately 1 hour,
check the gas pressure again and correct it, if necessary.
• Check all gas piping seals for leaks using a leak detector.
• Screw on the protective cap for the central supply connection.
SF
6
pressure curve -25°C
(ND=0.74 MPa [p
e
] / UW1=0.64 MPa [p
e
] / UW2=0.61MPa [p
e
])
All pressure specifications are given in terms of relative pressure
(p
e
).
CAUTION
3,5
4,0
4,5
5,0
5,5
6,0
6,5
7,0
7,5
-40
-30
-20
-10
0
10
20
30
40
50
t / °C
p_r
e
l / ba
r
Liquid
Gaseous
(1)
(4)
(2)
(3)
(1)=Nominal Density 48,77 g/L
(2)=Alarm Density 41,58 g/L
(3)=Lockout Density 39,46 g/L
(4)=Liquifaction Curve
1
Rated pressure curve
-
2
Alarm pressure curve
-
3
Lockout pressure curve
-
4
SF
6
liquefaction curve
-
Summary of Contents for GL 311 F3/4031 P/VE
Page 2: ......
Page 10: ...INTRODUCTION 10 146 OI 250 EN REV7 REV6...
Page 12: ...SAFETY 12 146 OI 250 EN REV7 REV3...
Page 48: ...INSTALLATION 48 146 OI 250 EN REV7 REV7...
Page 80: ...INSPECTION AND MAINTENANCE 80 146 OI 250 EN REV7 REV3...
Page 102: ...RECONDITIONING 102 146 OI 250 EN REV7 REV7...
Page 104: ...END OF LIFE MANAGEMENT 104 146 OI 250 EN REV7 REV2a...
Page 114: ...SPECIAL EQUIPMENT OPTIONAL 114 146 OI 250 EN REV7 REV0...
Page 128: ...REPLACEMENT PARTS AND ACCESSORIES 128 146 OI 250 EN REV7 REV6...
Page 130: ...HANDLING USED SULFUR HEXAFLUORIDE 130 146 OI 250 EN REV7 REV2...
