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Dry type resin bushing (35kV/315A～630A)

It is the insulating sleeve that leads the transformer's internal high and low voltage leads to the outside of the oil tank, which not only insulates the ground as the lead, but also plays the role of fixing the lead.<br> Therefore, the transformer sleeve has the following requirements:<br> (1) it must have specified electrical strength and sufficient mechanical strength.<br> (2) must have good thermal stability, and can withstand the short circuit of the instant overheating.<br> (3) small appearance, small quality, good sealing performance, strong universality and easy maintenance folding.

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Epoxy Bushing

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Product description

1. High Performance
Working temperature range from -40~130℃;
Excellent injection equipment to ensure no pores inside the insulation body;
Special surface treatment to ensure the bushing should not leak in long term service;
2. Rigous Test 
Dielectric Tests 
Basic Impulse level test: for 1.2kV class the impulse voltage is 30kV (full wave), and for 2.5kV class, the impulse voltage is 45kV (full wave); 
High voltage 50Hz & 60Hz withstand test: for 1.2kV class, test voltage is 10kV/1min., for 2.5kV class, the test voltage is 2.0 kV/ 1min. 
Mechanical Strengthen Tests 
Leakage test;    Stud push-out test;   Stud torque strength test;   Cantilever test;    Flange torque test
Environmental test 
It includes thermal cycle test. The tested temperature range is -40~130℃, withstand 20 cycles

Dry type Resin bushing outline dimensions ( 35kV/315A～630A）

Sequence NumberCodeModelDimensionsOpeningarcing distanceCreep distanceShieldPictureMounting pictureWeight
（kg）
Hh2h3Mdd0h1
1AM.FHA.001BFGW-35/31558012240M12×1.7510537512568 big 8 smallAD110.3
2AM.FHA.003BFGW-35/31566012240M12×1.75105455153010 big 11 smallAD111.7
3AM.FHA.005BFGPW-35/31558012240M12×1.7510537512568 big 8 smallAD110.3
4AM.FHA.006BFGW-35/315504842M12×1.7510537512568 big 8 smallBD110.3
5AM.FHA.007BFGW-35/315584842M12×1.75105455153010 big 11 smallBD111.7
6AM.FHA.008BFGPW-35/315504842M12×1.7510537512568 big 8 smallBD110.3
7AM.FHA.011BFGW-35/31558012240M12×1.7510536512568 big 9 smallAD29.5
8AM.FHA.012BFGW-35/315504842M12×1.7510536512568 big 9 smallBD29.5
9AM.FHB.001BFGW-35/40061013755M16×210536512568 big 9 smallAD211
10AM.FHD.001BFGW-35/63061013755M20×2.510536512568 big 9 smallAD212
11AM.FHA.013BFGW-35/31566012240M12×1.75105445153010 big 11 smallAD210.9
12AM.FHA.014BFGW-35/315584842M12×1.75105445153010 big 11 smallBD210.9
13AM.FHB.002BFGW-35/40069013755M16×2105445153010 big 11 smallAD213
14AM.FHD.002BFGW-35/63069013755M20×2.5105445153010 big 11 smallAD214.5

Epoxy Bushing

Epoxy bushings are indispensable key components on the low-voltage side of transformers. They utilize the epoxy resin's excellent comprehensive properties (electrical, mechanical, sealing, and weather resistance) to provide a safe and reliable pathway for low-voltage, high-current conductors, offering insulation, support, sealing, and connection. Their characteristics of stable performance, maintenance-free operation (compared to older oil-impregnated paper bushings), and flexible design make them an extremely common and successful standard solution for the low-voltage side of modern transformers, especially dry-type and distribution transformers.

 

Note: "P" stands for grounding shield.

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Epoxy bushing for transformer (10kV/315A)

Dry type resin bushing(1.2kV/630~5000A plate connected bushing)

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Epoxy bushing for transformer (10kV/315A)

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Dry type resin bushing(1.2kV/630~5000A plate connected bushing)

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