IAC-level high-current high-voltage switch cabinet
A high-voltage switchgear and high-current technology, which is applied in the cooling/ventilation of substation/switchgear, substation/power distribution device shell, etc., can solve the problems of pressure rise and gas temperature rise, and achieve good ventilation and heat dissipation, operation and maintenance simple effect
Pending Publication Date: 2019-06-14
JIANGSU DONGYUAN ELECTRIC APPLIANCEGROUP
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Problems solved by technology
Such a huge amount of energy is in a closed environment and cannot be transmitted through radiation, convection and heat conduction, resulting in an increase in the temperature and pressure of the gas in the sealed space.
Method used
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[0022] The existing high-current high-voltage switchgear and figure 1 The IAC-level high-current high-voltage switchgear is basically similar. The entire cabinet includes an instrument room 1, a circuit breaker room 2, an outlet room 3, and a busbar room 4. Instrument room 1 places various instruments and meters, and the middle part of circuit breaker room 2 places a circuit breaker. 11, the busbar room 4 places the busbar 14 and the upper contact box 5, the outlet room 3 places the lower contact box 6, the outgoing busbar 7, the current transformer 8, the lightning arrester 9, the support insulator 10, and the outgoing busbar 7 is respectively connected to the lower The contact box 6, the current transformer 8, the support insulator 10, and the lightning arrester 9 are arranged at the bottom of the outlet room 3. On the top of the cabinet body, that is, on the top of the circuit breaker room 2, the outlet room 3 and the busbar room 4, there are respectively pressure relief pl...
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The invention discloses an IAC-level high-current high-voltage switch cabinet. The switch cabinet comprises a cabinet body; a pressure relief plate is arranged at the top of the cabinet body; one sideedge of the pressure relief plate is connected with the top of the cabinet body through a hinge; an air duct opening is formed in the bottom of the side edge of the cabinet body; the upper side edgeof the air duct opening is connected with a movable baffle through a hinge; a supporting plate is obliquely arranged on the lower side edge of the air duct opening; a bulge is arranged on the supporting plate; the bulge clamps the lower side edge of the movable baffle; the movable baffle and the support plate are both arranged on the inner side of the cabinet body; a pressure relief mesh plate isarranged below the pressure relief plate; a limiting baffle strip is arranged above the pressure relief mesh plate; and meshes are formed in the pressure relief mesh plate. According to the IAC-levelhigh-current high-voltage cabinet, good ventilation and heat dissipation can be achieved, and the internal arcing protection level specified by the national power grid can be achieved; and the operation and the maintenance are simpler.
Description
technical field [0001] The invention relates to a high-current high-voltage switchgear, in particular to an IAC-level high-current high-voltage switchgear with a pressure relief and explosion-proof function. Background technique [0002] In the switchgear, once an internal arcing accident occurs, it will cause great harm to people and equipment. When the internal arcing fault of the switchgear occurs, the fault arc can form high pressure and high temperature in a short period of time, which will have mechanical and thermal effects on the equipment, and the equipment and parts will be deformed and broken under such high pressure. The cabinet door will be lifted, and hot gas and hot particles will be ejected outward, which will cause injury to the equipment operator. In order to ensure the life safety of power equipment operators, the power grid company must meet the internal arcing safety level requirements for the grid-connected switchgear. [0003] When an internal arcing...
Claims
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IPC IPC(8): H02B1/56H02B1/30
Inventor 孙志忠蒋志融葛建军袁铁军施永军瞿鹏程
Owner JIANGSU DONGYUAN ELECTRIC APPLIANCEGROUP