Gas insulated metal sealing switch equipment

Abstract

The invention relates to a gas-insulated metal-enclosed switchgear based on a stand-alone switch element in the power industry, which comprises a cable terminal, a line disconnecting switch, a voltage transformator, a current transformator, a circuit breaker, a bus isolating switch, an earthing isolator, and a circuit breaker operating mechanism, wherein one end of the line disconnecting switch is connected with the cable terminal, and the line disconnecting switch is respectively connected with the voltage transformator and the current transformator; and an interface of the circuit breaker is connected with the current transformator, and the circuit breaker is respectively provided with the bus isolating switch and the earthing isolator. The circuit breaker operating mechanism is arranged below the circuit breaker, thereby relieving operating force; buses of the bus isolating switch and the earthing isolator are arranged in a chamber of the circuit breaker, thereby reducing the space of the whole machine; and end interfaces of the circuit breaker are designed into standard interfaces, and three groups of arc extinguishing chambers are arranged in a structure with a shape like a Chinese character 'pin', thereby having strong universality and even distribution of electric fields.

Description

technical field [0001] The invention relates to electrical equipment in the electric power industry, in particular to a gas-insulated metal-enclosed switchgear based on a single switch element and combining a disconnector, a circuit breaker and a transformer. Background technique [0002] After searching relevant patent documents, a gas-insulated metal-enclosed switchgear with the same structure as the present invention has not been found. In the existing power industry, the measurement, protection and control equipment for power supply and consumption are generally installed and connected in a stand-alone manner. Since the installation of each stand-alone equipment needs to occupy a large space, and the installation of the equipment is labor-intensive and time-consuming, the project investment Shipping time is relatively long. Contents of the invention [0003] The object of the present invention is to provide a gas-insulated metal-enclosed switchgear with compact struct...

AI Technical Summary

Problems solved by technology

In the existing power industry, the measurement, protection and control equipment for power supply and consumption are generally installed and connected in a stand-alone manner. Since the installation of each stand-alone equipment needs to occupy a large space, and the installation of the equipment is labor-intensive and time-consuming, the project investment Relatively long shipping time

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