Checking The Gas Quality; Checking The Contact Resistance; Checking The Operating Times; Checking The Threaded Connections - GE GL 310 F3/4031 P/VR Operating Instructions Manual

High voltage circuit breaker
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9.3.4

Checking the Gas Quality

9.3.5

Checking the Contact Resistance

9.3.6

Checking the Operating Times

9.3.7

Checking the Threaded Connections

REV6
/REV3
Take a gas sample and check for compliance with the limits.
- Dew point:
- SF
conten
:
6
t
- Acidity (SO
):
2
1) Based on the operating pressure and 20°C.
2) Measurements earliest perform three days after a short circuit.
The required measuring and testing equipment is listed in (see
"Tools and Auxiliary Equipment" on Page 109).
• Check the contact resistance as described in the commissioning
section.
• Check the operating times as described in the commissioning
section.
• Check all accessible threaded connections (screwed or bolted
joints) to make sure they are tight.
The tightening torques are given in the following sections:
- Installation
- Commissioning
- Troubleshooting
- Reconditioning
OI 248 (EN)
I
NSPECTION AND
1)
-5°C
97%
2)
< 180 ppmv
M
AINTENANCE
71

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