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220kv voltage level gas insulated transformer

A technology of gas insulation and voltage level, applied in the field of transformers, to achieve the effects of easy maintenance and replacement, excellent secondary protection performance, and safe and reliable equipment

Active Publication Date: 2016-06-15
SHENZHEN POWER SUPPLY BUREAU +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] SF 6 Gas-insulated transformers are mainly used in places where the population is concentrated in large cities. At present, gas-insulated transformers with a voltage level of 110kV and below are used. For gas-insulated transformers with a voltage level of 110kV and below, only a few transformer manufacturers can produce them; The 220kV voltage level gas-insulated transformer has not yet been related to manufacturing and application. With the planning of domestic cities and power systems, the demand for 220kV gas-insulated transformers has gradually been put on the agenda. Therefore, the technical development of 220kV voltage level transformers become a need

Method used

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  • 220kv voltage level gas insulated transformer
  • 220kv voltage level gas insulated transformer
  • 220kv voltage level gas insulated transformer

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, the present invention will be further described by examples.

[0024] figure 1 Shown is the internal body structure of the 220kV voltage level gas insulated transformer according to the present invention: iron core 1, low voltage coil 2, low voltage coil end insulation 3, coil pressure plate 4, main insulation 5, high voltage coil 6, high voltage coil end insulation 7. High-voltage end and tap top outlet 8, enclosure 9, high-voltage head outlet 10, high-voltage end and tap bottom outlet 11, lower insulation 12, and body support plate 13.

[0025] The low-voltage head and the low-voltage end are axially drawn out from the upper and lower ends of the coil through the body; the high-voltage head is drawn out from the middle in the width direction, and a two-way parallel structure is adopted, and the high-voltage end and tap outlets are drawn out from both ends of the coil , the two-way parallel connection places the high-vol...

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Abstract

The invention relates to a 220kV voltage grade gas-insulated transformer, which belongs to the technical field of transformers. The technical solution is: including: 220kV gas-insulated transformer box; 220kV high-voltage cable outgoing SF 6 Gas, SF 6 Gas bushing and cable box; 220kV transformer body, including iron core, coil and lead wire; transformer on-load tap changer; gas density meter and pressure monitoring device for secondary protection, sudden pressure relay, gas thermometer, winding Thermometer; plate radiator for transformer cooling, gas circulation pump, air flow indicator, blowing device, cooling system intelligent control box; transformer internal insulation and cooling medium are SF 6 gas. Beneficial effects of the present invention: Compared with conventional oil-immersed transformers, the 220kV gas-insulated transformer has fireproof, explosion-proof, and high safety performance; the monitoring and protection configuration is complete, and it is more suitable for use in places with concentrated population in urban centers.

Description

technical field [0001] The invention relates to a 220kV voltage grade gas-insulated transformer, which belongs to the technical field of transformers. Background technique [0002] SF 6 Gas-insulated transformers are mainly used in places where the population is concentrated in large cities. At present, gas-insulated transformers with a voltage level of 110kV and below are used. For gas-insulated transformers with a voltage level of 110kV and below, only a few transformer manufacturers can produce them; The 220kV voltage level gas-insulated transformer has not yet been related to manufacturing and application. With the planning of domestic cities and power systems, the demand for 220kV gas-insulated transformers has gradually been put on the agenda. Therefore, the technical development of 220kV voltage level transformers become a need. Contents of the invention [0003] The purpose of the present invention is to provide a 220kV voltage level gas insulated transformer, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F29/04H01F27/28H01F27/40
Inventor 王志勇张喜乐艾精文边庆恺戴志勇刘强涂昊曦刘连兴王健王奎生
Owner SHENZHEN POWER SUPPLY BUREAU