Environment-friendly solid insulation metal-enclosed switchgear suitable for high and cold environment

Abstract

The invention discloses an environment-friendly solid insulation metal-enclosed switchgear suitable for a high and cold environment. The invention belongs to the field of solid insulated switchgear. The invention relates to an environment-friendly solid insulation metal-enclosed switchgear suitable for a high and cold environment. The switchgear comprises a solid insulation metal-enclosed switch cabinet. A power control mechanism box is arranged in the solid insulation metal-closed switch cabinet. Original parts such as a circuit breaker and an isolating switch can be integrated in the insulated metal-enclosed equipment. The discharge influence on the outside in the working process of the power switch equipment is reduced; meanwhile, the influence of the external environment on the power switch equipment is reduced; compared with the prior art, the influence of the external environment is reduced, the distribution network automation is easy to realize, charges can be guided to the discharge mechanism, and discharge consumption is realized through the resistor end, so that the damage of arc discharge caused by partial overflow charges in a low-temperature environment to the solid insulation switch equipment is reduced, and the safety of a power line in a working state is further improved.

Description

Technical field [0001] The invention relates to the field of solid insulated switchgear, and more specifically, to an environmentally-friendly solid insulated metal enclosed switchgear suitable for high-cold environments. Background technique [0002] Solid-insulated metal-enclosed switchgear is a common and most used electrical complete set of equipment in power systems. Various originals are combined according to certain regulations, mainly using solid medium to coat or solid seal all the high-voltage components of the main circuit of the switchgear In addition to the external connection, the composed insulation structure is completely assembled and enclosed in the switchgear and control equipment in a grounded metal shell. The switchgear enclosed in a grounded metal enclosure, except for the incoming and outgoing wires, is completely enclosed by a grounded metal enclosure, and the enclosure meets a specific protection level to protect the internal equipment from external influ...

AI Technical Summary

Problems solved by technology

[0004] The problems to be solved in the design and production of solid insulated switchgear are shielding and continuity, metallization, isolation, grounding, electric field optimization and other technologies on the surface of insulating materials. The shielding layer can be directly and reliably grounded to reduce and eliminate the influence of the use environment on the product. However, in the actual use of the existing solid insulated switchgear, when the switch is in working condition, there is current passing through the internal circuit, and the solid insulated switchgear The insulation of some internal media will change. For example, the resistivity of some insulating rubber materials changes with temperature in a low-temperature environment. Part of the insulating material in the insulating switchgear changes from an insulating state to a conductive state, so that the neutral point in the medium generates free electrons. When the ionization effect in the medium reaches a certain level, arc discharge occurs, resulting in solid insulated switchgear damage, which in turn has a serious impact on the entire line

Images