What is the use of ceramic terminals? The following editor of Kewei Te will give you a detailed talk.

Transformer high and low voltage insulation bushings are the main insulation devices outside the transformer box. The lead wires of the transformer high and low voltage windings must pass through the insulation bushing to insulate between the lead wires and between the lead wires and the transformer shell, and also fix the lead The role of the line.

Due to the different voltage levels, the insulating sleeve has the form of pure porcelain sleeve, oil-filled sleeve and capacitor sleeve. Pure porcelain bushings are mostly used in transformers of 10kV and below. A conductive copper rod is worn in the porcelain bushing, and the porcelain bushing is air insulated. Oil-filled bushings are mostly used in 35kV transformers. They are filled with oil in the porcelain bushing. A conductive copper rod is inserted into the porcelain bushing, and the copper rod is covered with insulating paper. Capacitor bushing is composed of main insulation capacitor core, outer insulation upper and lower porcelain parts, connecting sleeve, oil pillow, spring assembly, base, pressure equalizing ball, measuring terminal, wiring terminal, rubber gasket, insulating oil, etc. It is used on high-voltage transformers above 100kV.

Introduction

It is an insulating bushing that leads the high and low voltage leads inside the transformer to the outside of the tank. It not only serves as a lead to insulate the ground, but also serves as a fixed lead. The transformer bushing is one of the current-carrying components of the transformer. It will pass for a long time during the operation of the transformer. The load current passes through the short-circuit current when a short-circuit occurs outside the transformer. Therefore, the following requirements are imposed on the transformer bushing:

(1). It must have the specified electrical strength and sufficient mechanical strength.

(2). It must have good thermal stability and be able to withstand transient overheating during short-circuit.

(3). Small size, small quality, good sealing performance, strong versatility and easy maintenance.

structure

It is composed of wiring board, porcelain parts, conductive rod and aluminum alloy flange.

The main insulation is mainly composed of a porcelain sleeve and an oil gap, which is a non-breakdown and maintenance-free component.

Transformer bushing

Shenzhen Keweite Technology Co., Ltd. is a private joint-stock technology enterprise registered in Shenzhen in 2005. The company has a registered capital of 5 million yuan. It is a professional manufacturer that develops and produces glass sealed insulated connectors. It has rich experience in the research and development and production of metal and glass sealing products, with mature process technology and complete production and testing equipment, which successfully solves the problems of glass air tightness and brittleness. Its products are related to ceramic terminals. Customers are welcome to consult and purchase!