Switch-on dead-point-crossing indicating apparatus used for single-pole dual-arm perpendicular telescopic isolation switch
A technology of isolating switch and indicating device, applied in the direction of air switch parts, etc., can solve the problems of equipment that is not in place, can not judge whether the active arm has passed the dead point through external observation, personal safety accidents, etc., and achieves a simple structure. , to avoid equipment and personal safety accidents, the effect of easy installation
Active Publication Date: 2017-08-08
HUNAN CHANGGAO HIGHVOLTAGE SWITCHGEAR CO LTD
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Problems solved by technology
Single-column double-arm vertical telescopic outdoor high-voltage isolating switch is a commonly used structural form of isolating switch under the condition of vertical fracture. Its main transmission part includes the active crank arm hidden in the sealed transmission box. The arm is connected to the drive mechanism through the transmission flange extending to the outside of the transmission box. The closing state of the single-column double-arm vertical telescopic isolator and the clamping force of the contact are guaranteed by the dead point of the active crank arm. The settings in the transmission box are limited. When the active crank arm passes the dead point, the limit bolt will withstand the active crank arm. However, during the daily inspection of the isolating switch closing state, it is impossible to judge whether the active crank arm has passed the dead point through external observation. Misjudgment may cause equipment and personal safety accidents due to improper closing
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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] Figure 1 to Figure 6 It shows an embodiment of the closing over-dead point indicating device for a single-column double-arm vertical telescopic isolating switch of the present invention, the indicating device includes a dynamic indicating part 1 and a static indicating part 2, and the moving indicating part 1 is installed It is installed on the transmission flange 3 of the isolating switch and can rotate synchronously with the transmission flange 3. The dynamic indicating part 1 is located outside the transmission box 4 of the isolating switch, and the static indicating part 2 is installed on the transmission box 4. When the active crank arm 5 and When the limit bolt 6 is in contact with the dead center position, the dynamic indicating part 1 rotates to the contact position with the static indicating part 2 . In this structur...
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The invention discloses a switch-on dead-point-crossing indicating apparatus used for a single-pole dual-arm perpendicular telescopic isolation switch. The switch-on dead-point-crossing indicating apparatus comprises a movable indicating part and a static indicating part; the movable indicating part is arranged on a transmission flange of the isolation switch and can rotate synchronously along with the transmission flange; the movable indicating part is positioned on the exterior of a transmission box of the isolation switch; the static indicating part is arranged on the transmission box; and when an active connecting lever and a limiting bolt are in contact and positioned in a dead-point-crossing position, the movable indicating part rotates to a position to be in contact with the static indicating part. The indicating apparatus has the advantages of simple structure, convenience in installation and capability of improving judgment accuracy and equipment safety.
Description
technical field [0001] The invention mainly relates to the technical field of power equipment, in particular to a closing over-dead point indicating device for a single-column double-arm vertical telescopic isolating switch. Background technique [0002] With the rapid development of the power system, the requirements for the safety and reliability of the power grid continue to increase. Single-column double-arm vertical telescopic outdoor high-voltage isolating switch is a commonly used structural form of isolating switch under the condition of vertical fracture. Its main transmission part includes the active crank arm hidden in the sealed transmission box. The arm is connected to the drive mechanism through the transmission flange extending to the outside of the transmission box. The closing state of the single-column double-arm vertical telescopic isolator and the clamping force of the contact are guaranteed by the dead point of the active crank arm. The settings in the t...
Claims
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IPC IPC(8): H01H31/02
CPCH01H31/02
Inventor 马伟君余军邓文华彭壮程卫
Owner HUNAN CHANGGAO HIGHVOLTAGE SWITCHGEAR CO LTD