Epoxy-pouring full-insulation solid isolating switch

Abstract

The invention relates to an epoxy-pouring full-insulation solid isolating switch, which comprises an isolation body, a grounded contact, an isolation contact, a middle contact, an isolation moving contact, a driving screw rod, a fixed nut and a driving gear part, wherein the grounded contact and the isolation contact are arranged at two ends of the isolation body respectively, the middle part of the isolation body is provided with the middle contact, the upper end of the isolation contact is connected with a bus contact through a bus-bar, the bus contact is arranged on the top of the isolation body, and the isolation moving contact is always contacted with the middle contact through a watch chain sensing finger. The isolation switch slides between two positions of the middle contact and the isolation contact or the middle contact and the grounded contact to form the conduction or the isolation grounding of the isolating switch. The entire isolating switch is poured into a fully-sealed integral structure with epoxy resin.

Description

technical field [0001] The invention relates to an epoxy resin casting isolating switch, in particular to a fully insulated solid isolating switch. technical background [0002] The isolating switch is one of the key equipment used in the power supply network, and its application is quite extensive, such as: the power station is used as the protection of plant equipment and generator sets, industrial power distribution and electric drive are used as supporting facilities, mines, oil wells and ships Use as a protective device for safety. In short, the isolating switch can be used for high-voltage electrical equipment to open and close the circuit under the condition of no load and voltage, and can ensure safe work in the isolation area during line maintenance. [0003] At present, most of the general-purpose isolating switches adopt the traditional knife-type isolating switch. With the rapid development of science and technology, the knife-type isolating switch has exposed i...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems existing in current isolating switches such as temperature rise, low carrying capacity, poor long-term operation stability, large space in the isolation room, inconvenient installation, inaccurate transmission, limited use places, and poor reliability. A new type of epoxy cast fully insulated solid isolating switch with compact structure, small size, no need for daily maintenance, not affected by the operating environment, and can significantly reduce the investment in power facilities and the loss of transmission and feeder lines

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