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Dry Transformer End Block Insulating Block Dry Transformer Molding Part

Dry Transformer End Block Insulating Block Dry Transformer Molding Part

Short Description:

BMC (unsaturated polyester resin glass fiber reinforced molding plastic) is preferred. It can accurately control the size, has good flame retardant and leakage marking resistance, has high dielectric strength, corrosion resistance and stain resistance, excellent mechanical properties, very low water absorption and stable color. The aging resistance of BMC (DMC) is very good, can be used indoors for 15 to 30 years, and its strength retention rate is more than 60% after 10 years of outdoor exposure. BMCS have excellent flow characteristics and excellent insulation and flame retardant properties, making them ideal for a variety of applications requiring precise details and dimensions.


Product Detail

Product Tags

Raw Materials: Glass fiber and resin.

Color: White red black yellow blue, etc.

Applications: dry transformer, reactor, box transformer, mine transformer, high voltage switch gear and other electrical equipment as insulation accessories.

Production Process: four-column universal hydraulic press pressing molding.

 

Item

Property

Unit

Requirement

Test result

Test method

1

Breakdown voltage on power frequency

(42 kV, 1min)

-

Pass

Pass

GB/T 1408.1-2016

2

Lightning impulse withstand voltage (75kV, 15 times each for positive and negative polarity)

-

Pass

Pass

GB/T 1408.1-2016

3

Creepage Distance

mm

≥230

288

IEC 60273:1990

4

Partial discharge

(under 12 kV)

pC

<10

0.22

GB/T 7354-2018

5

Appearance

-

The casting parts have no bubbles or cracks, and the surface is smooth and flat

Pass

Visual
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