QZB Auto transformer

Short Description:

QZB series autotransformers are used for three-phase ac 50Hz, the rated voltage is 380V, the power is from 14kW to 400kW epiaule cage type induction motor, used for infrequent voltage drop. The system uses the characteristics of the transformer voltage drop to reduce the starting current of the motor to improve the impact on the transmission network when the motor starts. The transformer must be removed after start-up. This transformer can be used in the XJD1 series and the JJ1B series self-decoupled decompression starter box as the main element.

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Product Detail

Product Tags

Feature

QZB available from decoupling three-phase transformers applicable exchange of 50 Hz for a nominal voltage of 380V, temperature 17kW squirrel cage 400 kW power.
The motor must be electric, making the vacuum in infrequent operating conditions to start using.
the use of decompression transformers, reduce the starting currents of electric motors for the improvement of the starting motors of transmission networks.
decoupling of the present available in the XJD1 series, JJ1 transformers for decompression start in the main element.

Structure

Three phase star connection with air self-cooled transformer
Steel cores are three pillar steel core
17~190KW phase coil is primary winding coil, inside installed temperature
protection switch should tandem connection in controlling circuit for prevent the
coil temperature from overheat and burning out
225~400KW phase coil consist of 8 sets pie coils winding by the tensile
screw rod
There are 65%(60%),80% two sets of starting raps for choose
It is the main element in XJD1, JJ1B series starting autotransformer box.