Sulfur hexafluoride gas density relay

Abstract

The invention discloses a sulfur hexafluoride gas density relay. The sulfur hexafluoride gas density relay comprises a shell, a signal control part and an indicating value display part, wherein the signal control part and the indicating value display part are arranged in the shell and are relatively independent. The signal control part comprises a control base, a control end seat, a control Burdon tube, a control temperature compensation piece, a control connecting arm, a control signal regulating piece and a plurality of control microswitches serving as signal generators. The control microswitches are arranged in the mode that the width direction of operating handles of the control microswitches is perpendicular to the width direction of the Burdon tube. The indicating value display part comprises a display Burdon tube, a display temperature compensation piece, a display base, a display end seat, a display machine core, a pointer, a display connecting arm, a display signal regulating piece and a plurality of display microswitches serving as signal generators. The sulfur hexafluoride gas density relay can achieve overpressure alarming and control, the accuracy of dense relays is improved to the maximum extent, the thickness of the dense relays is reduced, the application range of the dense relays is enlarged, and the sulfur hexafluoride gas density relay is suitable for being applied to various occasions.

Description

technical field [0001] The invention relates to a sulfur hexafluoride gas density relay. Background technique [0002] At present, oil-free gas density relays with micro switches as contacts are generally used to monitor the gas density of sulfur hexafluoride in electrical equipment, such as Chinese patents or patent applications 200510110648.5, 200520045890.4, 200520045891.9, 200520115321.2, 200610023139.3, Gas density relays disclosed in 200610118940.6, 200810201462.4, 200910195174.7, 201020190271.5 and 201010171798.8 (such as figure 1 and figure 2 As shown) generally includes dial 1, pointer 2, Baden tube 3, temperature compensation sheet 4, base 5, movement 6 with display amplification mechanism, connecting rod 7, housing 8, joint 9, micro switch 101, 102, 103, adjusting parts 111, 112, 113, contact operating arm 12, connecting arm 13, end seat 14, wiring seat 15, watch glass 16, cover case 17, printed circuit board 18, positioning plate 19, fixing Plate 20 , wire 21...

AI Technical Summary

Problems solved by technology

Similarly, the microswitches 91-93 of this gas density relay are arranged in such a way that the width direction of the operating handle is parallel to the width direction of the Baden tube 6, and an anti-misoperation mechanism is added, so that the thickness of the density relay is thick. , especially when 3 to 4 contacts are required, the thickness is very thick, and it is difficult to meet various application occasions

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