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Scb10-4000kva dry type transformer

Date of issue: 2020/9/28 9:47:16 Source: http://perryswenson.com Click: zero

   According to the scb10-4000kva dry-type transformer "10" standard, our company produces this series of dry-type power distribution transformers with the advantages of energy-saving, safety and environmental protection. It can be directly installed in the load center. It is easy to install and has good moisture-proof performance. It can run normally under 100% humidity. It can be put into operation without pre drying after shutdown. And equipped with a perfect temperature protection and control system to provide reliable guarantee for the safe operation of the transformer. It has the advantages of low operation loss and simple maintenance. Compared with the original scb9 series, scb10-4000kva dry-type transformer has 10% less no-load loss and 5% load loss. The noise and partial discharge have been improved to some extent. It is a good performance product among the existing products of our company. The competition of scb10-4000kva dry-type transformer industry in China is fierce. Foreign multinational companies have seized a large market share, and the number of domestic transformer manufacturers is also growing rapidly. There are more than 20 enterprises with 220kV transformer production capacity and more than 100 enterprises with 110kV transformer production capacity. However, the enterprises producing transformers above 500kV have set up high barriers to entry through technology and capacity, and the market structure tends to be stable.

According to the plan, the State Grid will invest about 2.55 trillion yuan in power grid construction during the 12th Five Year Plan period, which is 68% higher than that of 1.5 trillion yuan during the 11th Five Year Plan period. In terms of segmentation, 500 billion will be used for UHV power grid investment, 500 billion will be used for distribution network investment, and about 1.55 trillion will be used for grid line investment of other voltage levels.

In the investment of UHV power grid, the investment amount of UHV AC is about 270 billion yuan. The main equipment of UHV AC includes UHV Transformer, reactor, GIS combined switch, transformer, etc. In the UHV investment, the equipment investment accounts for about 45%, of which the transformer (including reactor) accounts for about 30% of the equipment investment Its market capacity exceeds 36 billion yuan.

The components of scb10-4000kva dry-type transformer include body (iron core, winding, insulation, lead wire), transformer oil, oil tank and cooling device, voltage regulating device, protection device (moisture absorber, safety airway, gas relay, oil conservator and temperature measuring device) and outlet bushing.

1. Iron core

Iron core is the main magnetic circuit part of transformer. It is usually composed of hot-rolled or cold-rolled silicon steel sheets with high silicon content and thickness of 0.35 mm, 0.3 mm and 0.27 mm respectively.

The iron core and the core are composed of two magnetic poles.

There are two basic forms of core structure: core type and shell type.

2. Winding

Winding is the circuit part of transformer, which is made of double wire insulated flat wire or enameled round wire.

1、 Product introduction

SC (b) 10 series heat-resistant grade F, no-load loss is 20% lower than national standard, load loss is 15% lower than national standard, noise is 15-30db lower than national standard, design service life is 30 years.

2、 Applicable environment

The altitude is not more than 1000m

The high temperature is 40 ℃;

The relative humidity can reach 100%;

Note: special design can be carried out according to customer's requirements when exceeding the normal use conditions.

Normal operation conditions of scb10-4000kva dry type transformer

1. The altitude is not more than 1000m, indoor

2. Ambient temperature: high temperature + 40 ℃

Average daily high temperature + 30 ℃

4. High annual average temperature + 20 ℃

5. Low temperature - 5 ℃


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