Combined electric appliance for three-dimensional roll-core transformer

Abstract

The invention discloses a combined electric appliance for a three-dimensional roll-core transformer. The combined electric appliance is composed of a composite suspension insulator and a lightning arrester. The lightning arrester comprises a core body outer sleeve, an umbrella sleeve is arranged on the outer side of the core body outer sleeve, a resistor disc is arranged in the core body outer sleeve, one end of the core body outer sleeve is fixed to a supporting plate, an electrode making contact with the resistor disc is arranged in the other end of the core body outer sleeve, and the electrode is connected with a discharging ball. One end of the core rod of the composite suspension insulator is fixed with the supporting plate, the other end is provided with a discharging rod, the outerside of the core rod is provided with a composite umbrella cover, the end of the core rod close to the supporting plate is provided with a crimping ball socket, and the other end of the core rod is provided with a crimping ball head; and a discharge gap is formed between the discharging rod and the discharging ball. The lightning arrester has the advantages that the lightning arrester has dual functions of an insulator and a series gap lightning arrester; an impact current is released from the series gap and the lightning arrester, thereby playing a role in protecting the insulator; and moreover, burning loss of the discharge rod and the discharge electrode is avoided.

Description

technical field [0001] The invention relates to power equipment technology, in particular to a lightning protection electrical appliance. Background technique [0002] The lightning protection of the power line using the three-dimensional wound core transformer is very important. The lightning arresters generally used are often large in size, and when a lightning strike occurs, it is very easy to cause the burning of the discharge rod and the discharge electrode; Chinese patent application number 201721266956.1 Disclosed is a lightning arrester with a series gap, comprising a lightning arrester body, the supporting part of the lightning arrester body is an epoxy glass fiber cylinder, and a resistor plate is arranged in the epoxy glass fiber cylinder through a compression spring, and the epoxy glass fiber cylinder Silicone rubber sheds are set on the periphery, the upper and lower ends of the arrester body are fitted with fittings through the adhesive layer, and the lower end...

AI Technical Summary

Problems solved by technology

Since the patent does not design the discharge gap, it is very easy to cause the electrode to be burned

In addition, the adjustment of the discharge gap has a greater impact on the lightning protection effect, and there are few lightning protection devices that adjust the structure of the discharge gap in the prior art.

Images