Title: SF6 gas density relay corrector and its detecting method
Application Number: 200610128476 Application Date: 2006.12.27
Publication Number: 1987412 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01N9/00;G01K11/00;G01M19/00;H01H35/18
Applicant(s) Name: Sai Address:
Inventor(s) Name: Zhang Canli;Hao Shangping
Attorney & Agent:
Abstract:
    The check meter includes structure: infrared temperature measurement device (ITMD) and gas cylinder are connected to host; through transition joint, host is connected to SF6 density relay to be tested; faceplate is setup on the host connected to electrical source; the host includes gas pressure regulating device connected to SF6, single chip system, as well as display screen, printer, and pressure regulating valve (PRV) connected to the single chip; through pipe, the gas cylinder is connected to the inlet of the quick replaced connector plug of gas circuit, inlets of the inlet socket and PRV; through socket of the measurement port, the test gas pipe and the transition joint, PRV is connected to SF6. Through ITMD, the meter can collect temperature to accomplish dynamic compensation based on pressure conversion at 20 deg.C. Under effective temperature range, the meter carries out calibration for close, close resetting, alarming, and pressure value for resetting alarm.
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