Anti-inadvertent touch type electricity-testing device of high voltage switch cabinet
A technology of high-voltage switchgear and electric inspection device, which is applied in the field of high-voltage switchgear, can solve the problems of unidentified equipment and potential safety hazards, and achieve the effects of good use and promotion value, reliable operation, and low cost
Inactive Publication Date: 2012-07-04
ZHUMADIAN POWER SUPPLY ELECTRIC POWER OFHENAN
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Problems solved by technology
However, some lines adopt the "dual circuit" power supply mode. When the equipment performs power outage work, the outlet side may still be supplied with power from other substations.
In this way, it is impossible to verify that the equipment has no voltage before closing the grounding switch.
Sometimes there will be a method of forcibly unlocking and opening the cabinet door for electrical inspection, which brings potential safety hazards
Method used
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[0028] Such as figure 1 As shown, the present invention includes a valve locking device 2 and an opening device 1 . Such as Figure 4 As shown, the valve locking device 2 includes a gear 3, a rack 4, a rack 11 and a base 5, the upper and lower sides of the base 5 are respectively provided with a chute 6, the chute 6 is slidably connected to a rack 4, and the gear 3 is located on the In the middle of the bars 4 and 11, and the racks 4 and 11 are arranged in opposite directions with respect to the gear 3. Such as Figure 5 As shown, the rack 4 is connected with a valve 7, the rack 11 is connected with a valve 12, and the gear 3 is engaged with the racks 4, 11 for transmission. Along with the relative movement of rack 4,11, valve 7,12 also opens or closes thereupon.
[0029] Such as figure 2 As shown, the inside of the opening device 1 is hollow. The opening device 1 includes an outer sleeve 13 and an inner sleeve 14, and a sliding connection is adopted between the outer s...
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The invention discloses an anti-inadvertent touch type electricity-testing device of a high voltage switch cabinet, comprising a valve locking device and an opening device. The valve locking device comprises a gear, racks and a base. The gear forms engaging transmission with the racks, the racks are both connected with valves, the racks are arranged in a bisected mode, and the valves are positioned at the rear side of the gear. The opening device is internally provided with an electroscope, and an opening mechanism is arranged between the valve locking device and the opening device. The opening mechanism comprises grooves / bulges arranged at the side face of the gear and the corresponding bulges / grooves arranged on the end part of the opening device. The valve locking device and the opening device are used for testing electricity, and a gear rack mechanism is used for opening and closing the valves. When electricity testing is needed, the valves are unlocked and opened by the opening device, a control rod of the electroscope is pushed to the inner part of the switch cabinet, and a signal of the electroscope is used for determining whether the inner part is charged. The locking mechanism can ensure the switch cabinet to be in a sealing state, and when the opening device is taken down, the valves are in a closed state.
Description
technical field [0001] The invention relates to the field of high-voltage switch cabinets, in particular to an electrical inspection device for high-voltage switch cabinets. Background technique [0002] The high-voltage switchgear currently being promoted and used is a fully-sealed type, which is a "five-proof" fully-enclosed type. The front and rear doors of the switchgear are equipped with mechanical locks that cannot be opened. According to the normal operation method, the personnel on duty should use a portable high-voltage electroscope to conduct an electric test on the equipment. However, some lines adopt the "dual-circuit" power supply mode. When the equipment performs power outage work, the outgoing line side may still be supplied with power from other substations. In this way, it is impossible to verify that the equipment has no voltage before closing the grounding switch. Sometimes there will be a method of forcibly unlocking and opening the cabinet door, which ...
Claims
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IPC IPC(8): G01R19/155
Inventor 耿伟耿洁宇
Owner ZHUMADIAN POWER SUPPLY ELECTRIC POWER OFHENAN