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Draw-lead type bushing (35kV/800~1250A)

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/800~1250A)

 

 

Sequence Number Code Model Dimensions Opening Arcing distance Creep distance Shield Weight
(kg)
H h2 Md Φd d1 d2 t d0 h1
1 AM.BHE.001 BJLW-35/800 852 570 M24×1.5 —— 250 30 10 150 447 1120 5 big 4 small 27
2 AM.BHF.001 BJLW-35/1000 857 570 M30×1.5 27 250 35 11 150 447 1120 5 big 4 small 27
3 AM.BHG.001 BJLW-35/1250 857 570 M33×1.5 30 250 40 12 150 447 1120 5 big 4 small 27
4 AM.BHE.002 BJLW-35/800 937 655 M24×1.5 —— 250 30 10 150 532 1380 6 big 5 small 32
5 AM.BHF.002 BJLW-35/1000 942 655 M30×1.5 27 250 35 11 150 532 1380 6 big 5 small 32
6 AM.BHG.002 BJLW-35/1250 942 655 M33×1.5 30 250 40 12 150 532 1380 6 big 5 small 32
7 AM.BHE.003 BJLW-35/800 1022 740 M24×1.5 —— 250 30 10 150 617 1550 7 big 6 small 37
8 AM.BHF.003 BJLW-35/1000 1027 740 M30×1.5 27 250 35 11 150 617 1550 7 big 6 small 37
9 AM.BHG.003 BJLW-35/1250 1027 740 M33×1.5 30 250 40 12 150 617 1550 7 big 6 small 37
10 AM.BHE.004 BJLW-35/800 1107 825 M24×1.5 —— 250 30 10 150 702 1860 8 big 7 small 42
11 AM.BHF.004 BJLW-35/1000 1112 825 M30×1.5 27 250 35 11 150 702 1860 8 big 7 small 42
12 AM.BHG.004 BJLW-35/1250 1112 825 M33×1.5 30 250 40 12 150 702 1860 8 big 7 small 42

 

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

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

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