Study of arc by-products in gas-insulated equipment. Final report
The project objective was to develop a chemical data base for sulfur hexafluoride, SF/sub 6/ decomposition products as generated by electrical discharges within gas-insulated equipment to serve as a basis for unified handling procedures of faulted SF/sub 6/ equipment and disposal of the arc products. An analysis capability was to be developed that could be used by utilities for incipient and actual fault analysis on SF/sub 6/ insulated power equipment. Arced SF/sub 6/ gas and solid samples were generated in test devices which simulate SF/sub 6/ circuit breakers or SF/sub 6/ insulated bus. Actual production hardware and procedures were used for assembly of the test devices. Fault arc currents ranged between 15 kA and 50 kA. Arced SF/sub 6/ samples were obtained and shipped in stainless steel cylinders. Gaseous arc products were analyzed with a combination of gas chromatography-mass spectrometry. The attained sensitivity is 100 ppM. The major SF/sub 6/ arc products are SOF/sub 2/ and CF/sub 4/. The amount increases with the arc energy. SOF/sub 2/ can effectively be removed by absorber-scrubbers containing soda-lime, activated alumina and molecular sieves. The solid arc products consisted of metal fluorides (AlF/sub 3/ and CuF/sub 2/.2 H/sub 2/O). Airborne dust, collected upon opening of the faulted test section had a size of about 10 micron.
- Research Organization:
- Gould-Brown Boveri, Greensburg, PA (USA)
- OSTI ID:
- 6706742
- Report Number(s):
- EPRI-EL-1646
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
CABLES
CARBON COMPOUNDS
CARBON FLUORIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CIRCUIT BREAKERS
CONDUCTOR DEVICES
CURRENTS
DATA
DECOMPOSITION
DIELECTRIC MATERIALS
ELECTRIC ARCS
ELECTRIC CABLES
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
GAS CHROMATOGRAPHY
GAS-INSULATED CABLES
HALIDES
HALOGEN COMPOUNDS
INFORMATION
MASS SPECTROSCOPY
MATERIALS
NUMERICAL DATA
SEPARATION PROCESSES
SPECTROSCOPY
SULFUR COMPOUNDS
SULFUR FLUORIDES
24 POWER TRANSMISSION AND DISTRIBUTION
CABLES
CARBON COMPOUNDS
CARBON FLUORIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CIRCUIT BREAKERS
CONDUCTOR DEVICES
CURRENTS
DATA
DECOMPOSITION
DIELECTRIC MATERIALS
ELECTRIC ARCS
ELECTRIC CABLES
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
GAS CHROMATOGRAPHY
GAS-INSULATED CABLES
HALIDES
HALOGEN COMPOUNDS
INFORMATION
MASS SPECTROSCOPY
MATERIALS
NUMERICAL DATA
SEPARATION PROCESSES
SPECTROSCOPY
SULFUR COMPOUNDS
SULFUR FLUORIDES