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sf6 Load break switch transformer maintenance leakage test suppliers

SF6 Gas Insulated Switchgear(GIS) Manufacturers and ... fuse and load switch build the transformer protection circuit. ... Five Anti-Locking Test. When the load switch is on the closing spot, the ground switch must not be closed. ... The SF6 load switch is sealed in a closed device filled with SF6 gas. Check the SF6 barometer to ensure that the air pressure is between 0.4 and 0.5Mpa.

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