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  •  Step down starting autotransformer

    Product Description: application range: power supply brand Shanghai Yinxi model QZB frequency characteristic low frequency power supply phase number three phase iron core shape EI type cooling form dry core core winding three winding moisture proof open cooling air cooled external structure vertical electricity Voltage ratio: 60% 80% 100% special, customizable efficiency rate (η) 90% rated power 155kw wave shape no additional waveform distortion application scope of QZB series starting autotransformer: QZB series autotransformer (hereinafter referred to as transformer) is suitable for AC 50 Hz, rated voltage 380V, The three-phase squirrel cage induction motor with rated output capacity below 400KW can be started under the condition of infrequent operation. The starting current of motor is reduced by reducing the voltage of transformer to improve the influence of motor starting on transmission network. The transformer meets the requirements of gb14048.4 and relevant standards. The structural features of QZB series starting autotransformer are as follows: 1. The rated working voltage of the autotransformer is 380V (440V, 460V, 660V can be customized), and the wiring is 100% terminal. 2. This series of transformer has two groups of 65% and 80% starting voltage taps. If a small starting torque is required, 65% tap can be selected. At this time, the starting current is small and the impact on the power grid is small; when the torque is large, 80% tap can be selected; the transformer can be assembled in XJ01, xj03, JJ1 series auto decompression starting box as the main accessories. 3. Starting time: for all working levels, the one-time starting time of autotransformer shall not exceed 15s (special ones can be customized). For the autotransformer to start again, the temperature of the transformer should be allowed to be cooled continuously before starting again. It is only used as auto coupling transformer for a long time. The autotransformer is a kind of single coil transformer. 1、 The secondary side shares one winding and its transformation ratio is fixed. Compared with the common transformer with the same capacity, it has the advantages of simple structure, low material consumption and small volume, especially when the transformation ratio is close to 1. Therefore, it is widely used in high-power transmission transformer with similar voltage, and widely used in step-down starting box of over 10kW asynchronous motor. The working conditions of QZB series starting autotransformer are as follows: altitude not more than 2500m; ambient air temperature; 1. Air temperature at different altitudes. 2 * * air temperature: - 40 ℃ air relative humidity: * monthly average * * relative humidity of wet month is 90%, and the monthly average * * temperature of that month is 25 ℃, taking into account the condensation on the product surface due to temperature change. Where there is no significant shaking and impact vibration. In the medium without explosion risk, and there is no gas and dust (including conductive dust) that can corrode metal and damage insulation. Where there is no rain or snow. The control motor power (kw) * * working current (installation) installation dimension (hole M8) mm volume volume (length, width, height) cmqzb-14142810.5 * 2229 * 16 * 23 * 23.5qzb-17173410.5 * 2229 * 16 * 16 * 23.4qzb-22224410.5 * 2229 * 16 * 23.5qzb-30306011 * 2233 * 17 * 27qzb-40407711 * 2833 * 17 * 27qzb-4545458012 * 2836 * 17 * 28.2qzb-55555551112 * 2836 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * qzb-757514212.5 * 2838 * 18 * 30qzb-909018016.5 * 3141 * 21 * 32qzb- 10010010019016.5 * 3141 * 21 * 32qzb-11511521816.5 * 3141 * 21 * 32qzb-13513525616.8 * 3141 * 22 * 22 * 34qzb-15515515529416. 8 * 3141 * 22 * 34qzb-19019035014 * 3145 * 24 * 36.5qzb-2252252254115 * 3152 * 24 * 24 * 38.5qzb-26026026026026048016 * 3156 * 28 * 28 * 28 * 46.5 technical parameters: above product dimensions, current size, dimensions are for reference only reference only.It's a good idea.

    model: QZB
    Power: 155kw (customizable)
    Voltage: 380V / 65% 80% (various voltages can be customized)
    texture of material: Copper wire (3 years warranty)
    See more > >
  •  Step down starting autotransformer

    Product Description: application range: power supply brand Shanghai Yinxi model QZB frequency characteristic low frequency power supply phase number three phase iron core shape EI type cooling form dry core core winding three winding moisture proof open cooling air cooled external structure vertical electricity Voltage ratio: 60% 80% 100% special, customizable efficiency rate (η) 90% rated power 75kW wave shape no additional waveform distortion application scope of QZB series starting autotransformer: QZB series autotransformer (hereinafter referred to as transformer) is suitable for AC 50 Hz, rated voltage 380V, The three-phase squirrel cage induction motor with rated output capacity below 400KW can be started under the condition of infrequent operation. The starting current of motor is reduced by reducing the voltage of transformer to improve the influence of motor starting on transmission network. The transformer meets the requirements of gb14048.4 and relevant standards. The structural features of QZB series starting autotransformer are as follows: 1. The rated working voltage of the autotransformer is 380V (440V, 460V, 660V can be customized), and the wiring is 100% terminal. 2. This series of transformer has two groups of 65% and 80% starting voltage taps. If a small starting torque is required, 65% tap can be selected. At this time, the starting current is small and the impact on the power grid is small; when the torque is large, 80% tap can be selected; the transformer can be assembled in XJ01, xj03, JJ1 series auto decompression starting box as the main accessories. 3. Starting time: for all working levels, the one-time starting time of autotransformer shall not exceed 15s (special ones can be customized). For the autotransformer to start again, the temperature of the transformer should be allowed to be cooled continuously before starting again. It is only used as auto coupling transformer for a long time. The autotransformer is a kind of single coil transformer. 1、 The secondary side shares one winding and its transformation ratio is fixed. Compared with the common transformer with the same capacity, it has the advantages of simple structure, low material consumption and small volume, especially when the transformation ratio is close to 1. Therefore, it is widely used in high-power transmission transformer with similar voltage, and widely used in step-down starting box of over 10kW asynchronous motor. The working conditions of QZB series starting autotransformer are as follows: altitude not more than 2500m; ambient air temperature; 1. Air temperature at different altitudes. 2 * * air temperature: - 40 ℃ air relative humidity: * monthly average * * relative humidity of wet month is 90%, and the monthly average * * temperature of that month is 25 ℃, taking into account the condensation on the product surface due to temperature change. Where there is no significant shaking and impact vibration. In the medium without explosion risk, and there is no gas and dust (including conductive dust) that can corrode metal and damage insulation. Where there is no rain or snow. The control motor power (kw) * * working current (installation) installation dimension (hole M8) mm volume volume (length, width, height) cmqzb-14142810.5 * 2229 * 16 * 23 * 23.5qzb-17173410.5 * 2229 * 16 * 16 * 23.4qzb-22224410.5 * 2229 * 16 * 23.5qzb-30306011 * 2233 * 17 * 27qzb-40407711 * 2833 * 17 * 27qzb-4545458012 * 2836 * 17 * 28.2qzb-55555551112 * 2836 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * 28 * qzb-757514212.5 * 2838 * 18 * 30qzb-909018016.5 * 3141 * 21 * 32qzb- 10010010019016.5 * 3141 * 21 * 32qzb-11511521816.5 * 3141 * 21 * 32qzb-13513525616.8 * 3141 * 22 * 22 * 34qzb-15515515529416. 8 * 3141 * 22 * 34qzb-19019035014 * 3145 * 24 * 36.5qzb-2252252254115 * 3152 * 24 * 24 * 38.5qzb-26026026026026048016 * 3156 * 28 * 28 * 28 * 46.5 technical parameters: above product dimensions, current size, dimensions are for reference only reference only.It's a good idea.

    model: QZB
    Power: 75KW
    Voltage: 380V/65%80%
    texture of material: Copper wire (3 years warranty)
    See more > >
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