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QZB step-down starting transformer

PRODUCT

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Decompression starter transformer

Decompression starter transformer Decompression starter transformer

Decompression starter transformer

  • Category：QZB step-down starting transformer
  • product description QZB series autotransformers are suitable for infrequent step-down starting of three-phase squirrel cage induction motors with AC 50Hz, rated voltage 380V and power 14KW-300KW, so as to improve the influence of the motor on the t
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Product Description

product description

 QZB series autotransformers are suitable for infrequent step-down starting of three-phase squirrel cage induction motors with AC 50Hz, rated voltage 380V and power 14KW-300KW, so as to improve the influence of the motor on the transmission network.

Models and what they mean


Shape and installation dimensions


Main technical features

model Control motor power
(KW) 		Maximum working time
(S) 		Maximum operating current
(A) 		model Installation size Mounting holes Dimensions
A C K×J B D E
QZB-14 14 30 28 QZB-14 180 100 12×20 270 144 255
QZB-20 20 30 40 QZB-17 180 100 12×20 270 144 255
QZB-28 28 30 56 QZB-20 180 100 12×20 270 144 255
QZB-30 30 30 59 QZB-22 180 100 12×20 270 144 255
QZB-40 40 30 80 QZB-28 195 108 12×20 300 155 270
QZB-55 55 30 110 QZB-30 195 108 12×20 300 155 270
QZB-75 75 30 142 QZB-40 195 110 12×20 300 160 270
QZB-115 115 50 230 QZB-45 195 110 12×20 300 160 270
QZB-135 135 50 270 QZB-55 210 120 12×20 371 170 280
QZB-190 190 70 370 QZB-75 210 135 12×20 371 185 280
QZB-225 225 70 410 QZB-115 310 145 12×20 420 195 315
QZB-260 260 70 475 QZB-135 310 145 12×20 420 195 315
QZB-300 300 70 535