Structure and characteristics of explosion-proof tubes for oil immersed transformers

Jun 01, 2023

Structure and characteristics of explosion-proof tubes for oil immersed transformers

The explosion-proof tube of an oil immersed transformer is a device used to protect the oil immersed transformer. Its main structure and characteristics are as follows:

1. Structure: The explosion-proof tube of an oil immersed transformer is composed of a tube body, flange, baffle, and other parts. The pipe body is usually made of seamless steel pipes or alloy steel pipes, and it is filled with refractory materials inside to prevent the splashing and combustion of oil immersed transformers from entering the pipeline during a fire. The flange connects the pipe body and transformer box, and the baffle can block the contact between the internal gas of the transformer and the external environment.

2. Features: The explosion-proof tube of the oil immersed transformer has the following characteristics:

(1) Good explosion-proof performance: The body and accessories of the explosion-proof tube are all made of pressure resistant and explosion-proof materials, which can effectively prevent fire accidents.

(2) Strong corrosion resistance: explosion-proof pipe material can work in various harsh environments, and will not be corroded due to the pollution of transformer oil.

(3) Easy installation: The explosion-proof pipe is connected with a flange, which is simple and convenient to install, and can be disassembled repeatedly.

(4) Economical and practical: The explosion-proof tube can be customized in size and materials according to actual needs, with low cost, good performance, and stable long-term use effect.

The explosion-proof tube of an oil immersed transformer is an important safety protection device that can improve the safety performance of the transformer and avoid the occurrence of fire accidents

PRODUCT LINK

http://www.switchgear-china.com/power-distribution-transformer/oil-immersed-transformer/33kv-three-phase-oil-immersed-transformer.html

PRODUCT PHOTO

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This product is usually customized.
We are a manufacturer and have a professional technical department that can design and provide solutions according to customer needs.
Please contact our sales personnel to obtain design drawings

Here are our customer examples for your reference

Uzbekistan customer

DESIGNATIONS

UNITS

SPECIFIC DATA

CANDIDATE DATA

Maker

To be indicated

Reference standard

IEC 60076

Type

Phase

Vat

Hermetic

Execution

Tropicalized

Dielectric

PCB-free oil

Installation

On pole

Operating ambient temperature

°C

45

Rated frequency

Hz

50

Rated power

Kva

100

Rated primary voltage

Kv

20

Isolation level assigned to primary school

Kv

24

Number of phases in primary school

03

Secondary voltage

V

400/230

Voltage adjustment range on the M side when unladen

%

±2.5

Coupling

DYn11

Short circuit voltage

%

4 – 4.5

Neutral sized for one load

%

100

Maximum vacuum losses

W

230 - 460

Losses due to Maxi load

W

1450 - 2350

Maximum steady-state oil temperature

°C

55

Maximum temperature of the windings in steady state

°C

60

Winding material

Electrolytic copper

Maximum noise level

Db

52

50Hz industrial frequency hold, 1 min

Kv

50 – 70

Shock wave resistance (1.2/50 micros)

Kv

125 - 170

Cooling

ONAN

Nameplate

01

Grounding connection

01

Dimensions Height/width/depth

mm x mm x mm

1200 X 1270 X 820

Total mass of transformer including oil

Kg

700

Oil mass

Kg

160

PAINT

Tropicalized and anti-rust

Number

Layers

Binder

Colour

Plans and technical diagrams to be provided.

 

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