SF6 Quality Analyzer
WIKA SF6 Quality Analyzer
SF6 - Percentage, Moisture, SO2 - Content
Primary Features
• Battery-powered pump back
• No transportation limitations
• Compact, lightweight
• Best in class sensitivity / accuracy
• Plug and play sensor replacement
• Flexible data (USB, LAN, onboard)
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The SF6 Quality Analyzer is the zero-emission solution for verifying the moisture,
decomposition products and SF6-purity inside SF6-filled tanks.
The SF6 Quality Analyzer can measure up to seven SF6 gas parameters.
Moisture, Purity, and SO2 sensors are standard. Measurements are carried out
in a closed loop. The sample gas can be pumped back into the SF6 switchgear,
storage cylinder, or collection vessel.
Over time, arching to
lead to a toxic and corrosive
environment inside of
SF6-filled equipment
The SF6 Quality Analyzer is easy to use! The operator connects the 4m PTFE
hose to the switchgear or cylinder under test. With the push of a button, readings display immediately for moisture,
decomposition products and SF6-purity. Results are automatically compared to SF6 contamination or reuse standard
(CIGRE B3.02.01, IEC, or client-specified) and a pass / fail indicator illuminates accordingly. Five hundred test results are
stored on board and are quickly downloadable via USB. The free SF6-Reviewer software may be used for gas quality trending
and also to export results into .xls format for entry into other databases.
SF6 Quality Analyzer
Measuring
Indication Flow Plan
Enlarged view of touch screen
SF6
SF6 Quality Analyzer
Discharges
Impurity
Specification
Air and or CF4
3% volume [note 1]
SF4 + 2F
H 2O
25 ppmw [notes 2 and 3]
Mineral oil
10 ppmw [note 4]
Total reactive gaseous decomposition
products
50 µl/l total for 12 µl/l for (SO2+SOF2) or
25 µl/l HF
O2
Note 1: In case of SF6 mixtures, the equipment manager shall specify the levels for
these gases
Note 2: Converted to ppmv, these levels shall also apply to mixtures until a suitable
standard becomes available.
Note 3: 25 mg / kg (25 ppmw) is equivalent to 200 ppmv (200 µl/l) and to a
dew point of -36OC, measured at 100 kPa and 20OC.
Note 4: If gas-handling equipment (pump, compressor) containing oil is used, it may
be necessary to measure the oil content of the SF6. If all equipment in contact
with the SF6, is oil-free, then it is not necessary to measure oil content.
IEC 60480 SF6-purity standard for reuse of SF6 in GIS
IKA Instrument Corporation
Pressure and Temperature Measurement
1000 Wiegand Boulevard
Lawrenceville, GA 30043
Toll Free 1-888-WIKA-USA (945-2872)
Tel (770) 513-8200 Fax (770) 277-2641
[email protected] • www.wika.com/sf6
MF8
M (= variable for
the electrode material)
H2O
F2
SOF4
SOF2 + HF
SiO2
SiF4 + 2H2O
H2O (large amount)
H2O
O2
SO2F2 + HF
SO2 + 2HF
Decomposition scheme of SF6 gas in high-voltage equipment
:
ProgUSA LLC
356 Harbour Isle Way,
Longwo (Orlando), FL 32750
Tel (407) 332-8678
[email protected]
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