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Draw-lead type bushing (35kV/50~630A)

The transformer sleeve is the main insulating device outside the transformer box. The lead wire of the transformer winding must pass through the insulating sleeve to insulate the lead wire between the lead wire and the lead wire between the transformer shell, and to fix the lead wire at the same time.Due to different voltage levels, the insulation sleeve has pure porcelain sleeves, oil-filled sleeves and capacitive sleeves.Pure porcelain bushing is mostly used for transformers of 10kV and below. It is to wear a conductive copper rod in the porcelain bushing, and the inside of the porcelain bushing is air insulated.The oil-filled bushing is mainly used in the 35kV class transformer. It is oil-filled in the porcelain bushing. A conductive copper pole is worn in the porcelain bushing.Capacitive bushing is composed of main insulating capacitor core, outer insulating upper and lower porcelain parts, connecting sleeve, oil pillow, spring assembly, base, equalizing ball, measuring terminal, wiring terminal, rubber washer, insulating oil, etc.It is used in high voltage transformers above 100kV.


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Draw-lead type bushing outline dimensions(35kV/50~630A)

 

Sequence Number Code Model Dimensions Opening Arcing distance Creep distance Shield Weight
(kg)
H h2 h3 Md d2 d4 d0 h1
1 AM.BHA.001 BJL-35/50 550 453 100 M12×1.75 6 38 105 328 930 7 single umbrella 15
2 AM.BHA.002 BJL-35/100 550 453 100 M12×1.75 9 38 105 328 930 7 single umbrella 15
3 AM.BHA.003 BJL-35/250 550 453 100 M12×1.75 12 38 105 328 930 7 single umbrella 15
4 AM.BHA.004 BJL-35/315 550 453 100 M12×1.75 16 38 105 328 930 7 single umbrella 15
5 AM.BHB.001 BJL-35/400 581 437 100 M16×2 16 45 105 328 930 7 single umbrella 15
6 AM.BHD.001 BJL-35/630 581 437 100 M20×2.5 20 45 105 328 930 7 single umbrella 15
7 AM.BHA.005 BJL-35/100 756 577 120 M16×2 12 71 105 447 1160 9 single umbrella 17
8 AM.BHA.006 BJL-35/250 756 577 120 M16×2 16 71 105 447 1160 9 single umbrella 17
9 AM.BHB.002 BJL-35/400 756 577 120 M16×2 20 71 105 447 1160 9 single umbrella 17
10 AM.BHD.002 BJL-35/630 756 577 120 M20×2.5 24 71 105 447 1160 9 single umbrella 17

 

Note: when selecting the pressure plate structure, add "P" after the model, add "DZ" after the code to represent the terminal, and "T" to represent the sheath.

In addition, other specifications can be customized according to customer requirements.

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