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Draw-lead type bushing (20kV/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

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Draw-lead type bushing outline dimensions(20kV/50~630A)

 

Sequence Number Code Model Dimensions Opening Arcing distance Creep distance Shield Weight
（kg）
H h2 Md d1 d2 d3 d4 d0 h1
1 AM.BFA.021 BJL-20/50 505 408 M12×1.75 115 6 65 38 70 322 530 4 single umbrella 5
2 AM.BFA.022 BJL-20/100 505 408 M12×1.75 115 9 65 38 70 322 530 4 single umbrella 5
3 AM.BFA.023 BJL-20/250 505 408 M12×1.75 115 12 65 38 70 322 530 4 single umbrella 5
4 AM.BFA.024 BJL-20/315 505 408 M12×1.75 115 16 65 38 70 322 530 4 single umbrella 5
5 AM.BFA.041 BJLW-20/50 425 328 M12×1.75 135 6 60 38 65 242 660 4 big 3 small 5.3
6 AM.BFA.042 BJLW-20/100 425 328 M12×1.75 135 9 60 38 65 242 660 4 big 3 small 5.3
7 AM.BFA.043 BJLW-20/250 425 328 M12×1.75 135 12 60 38 65 242 660 4 big 3 small 5.3
8 AM.BFA.044 BJLW-20/315 425 328 M12×1.75 135 16 60 38 65 242 660 4 big 3 small 5.3
9 AM.BFA.017 BJLW-20/50 375 278 M12×1.75 135 6 60 38 65 192 510 3 big 2 small 3.7
10 AM.BFA.018 BJLW-20/100 375 278 M12×1.75 135 9 60 38 65 192 510 3 big 2 small 3.7
11 AM.BFA.019 BJLW-20/250 375 278 M12×1.75 135 12 60 38 65 192 510 3 big 2 small 3.7
12 AM.BFA.020 BJLW-20/315 375 278 M12×1.75 135 16 60 38 65 192 510 3 big 2 small 3.8
13 AM.BFB.001 BJLW-20/400 406 262 M16×2 135 16 65 45 70 192 510 3 big 2 small 4.5
14 AM.BFD.001 BJLW-20/630 406 262 M20×2.5 135 20 65 45 70 192 510 3 big 2 small 4.5
15 AM.BFA.025 BJL-20/50 505 408 M12×1.75 135 6 65 38 70 322 810 7 single umbrella 7.2
16 AM.BFA.026 BJL-20/100 505 408 M12×1.75 135 9 65 38 70 322 810 7 single umbrella 7.2
17 AM.BFA.027 BJL-20/250 505 408 M12×1.75 135 12 65 38 70 322 810 7 single umbrella 7.2
18 AM.BFA.028 BJL-20/315 505 408 M12×1.75 135 16 65 38 70 322 810 7 single umbrella 7.3
19 AM.BFB.003 BJL-20/400 536 392 M16×2 135 16 65 45 70 322 810 7 single umbrella 8
20 AM.BFD.003 BJL-20/630 536 392 M20×2.5 135 20 65 45 70 322 810 7 single umbrella 8

 

Note: add "N" after the model when using the built-in structure, add "P" after the model when choosing the pressure plate structure, and add "H" after the model when using butterfly type tablet

After the code, add "DZ" 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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Draw-lead type bushing (35kV/50~630A)

Draw-lead type bushing (20kV/50~315A)

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

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Draw-lead type bushing (20kV/50~315A)

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