Combined electric appliance for electric power system

Abstract

The invention relates to the field of power switch equipment, in particular to a combined electric appliance for a power system. The combined electric appliance comprises a mounting frame, and a circuit breaker, an isolating switch, a grounding switch and a control box which are arranged on the mounting frame; the mounting frame comprises a mounting platform and a plurality of supporting legs arranged at the bottom of the mounting platform; the isolating switch, the grounding switch and the circuit breaker are all arranged on the mounting platform; the circuit breaker is a tank-type circuit breaker, the circuit breaker is transversely fixed in the middle of the upper side of the mounting platform, and the grounding switch is fixed on the upper side of the mounting platform; one end of the isolating switch is hinged with the static end of the grounding switch, the other end of the isolating switch is connected with the wire outlet end of the circuit breaker in an openable manner, the isolating switch is fixed at the bottom of the mounting platform, and a linkage device is arranged between the isolating switch and the grounding switch. The combined electric appliance is convenient to maintain, small in size, safe and reliable in operation and convenient to install, and the height of the combined electric appliance can be adjusted.

Description

technical field [0001] The invention relates to the field of electric switchgear, in particular to a combined electrical appliance for a power system. Background technique [0002] High-voltage combined electrical appliances are divided into two types: open type and fully enclosed type according to the insulation structure. The former is based on an isolating switch or a circuit breaker, and is composed of components such as a current transformer, a voltage transformer, and a cable head. The latter is to seal the high-voltage live parts of each component in a grounded metal shell, and the shell is filled with gas, oil or solid insulating medium with good insulation performance. The components are connected in sequence according to the wiring requirements and form a whole; open type Combined electrical appliances are generally composed of several conventional high-voltage electrical appliances according to the main wiring requirements, relying on each other in structure to f...

AI Technical Summary

Problems solved by technology

[0004] There are also the following problems in this combined electrical appliance: 1. It is impossible to directly observe the operation of each component, and it is inconvenient and unsafe to repair the part when a fault occurs; , the support platform needs to be installed on the construction site, the installation efficiency is low, and it takes a long time, and the height adjustment device in the existing device is unreasonably set. In actual operation, this height adjustment device is not easy to use, and it is easy to affect the overall stability of the device.