Areva FP 73 - SF6 Gas Volumes and Pressures

17
 Close the bottle again as soon
as the dial of the pressure
reducing valve indicates the
desired pressure adjustment.
 Control the pressure with the
pressure gauge.
 Remove the protective netting.
 Before refitting the protective
plug, check the cleanliness of
the seal under the plug and the
contact surface of the seal on
the circuit breaker.
 Screw on and firmly tighten the
pole valve plug by hand.
Repeat these operations for
the other poles on the circuit
breaker.
7.6 Reminder of the SF6 gas volumes and pressures depending on the circuit breakers
Circuit breaker
Relative
pressure (bar)
Volume
released (litres)
Volume
enclosure (litres)
SF6 Weight
(g)
FP 61/ 62 (per pole) 3.5 (
-0
,
+0.2
) 19.5 4.5 120
FP 71 (per pole) 3.5 (
-0
,
+0.2
) 24.5 5.5 150
FP 63 (per pole) 5.5 (
-0
,
+0.2
) 40 7 240
FP 73 (per pole) 3.5 (
-0
,
+0.2
) 58.5 13 360
FP 731 (per pole) 5.5 (
-0
,
+0.2
) 90 13.5 550
FP 741 (per pole) 5.5 (
-0
,
+0.2
) 90 13.5 550