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.

Model	Rated power	Rated voltage	Customized
QZB	□	□	□
	17:17KW 20:20KW .... 400:400KW	380:380V 660:660V Blank:380V	DZ1:customized Blank:common