Three-phase auto transformer voltage starting

 Related introduce a three-phase auto transformer voltage starting --- Product Overview: QZB-160KVA three-phase auto transformer voltage starting for AC 50HZ, rated voltage of 380V, rated output capacity of 160KW, is often used larger capacity squirrel cage asynchronous motors non-frequent voltage starting to improve the impact on the transmission network during motor starting. Although it is old-fashioned boot device, but the use of its multi-tap pressure, which can meet the needs of a variety of load start, but also get more starting torque, because with a hot relay and the low release and has perfect overload and voltage protection is widely used. Its role is to take advantage of the characteristics of step-down transformer to reduce motor starting current. Three-phase auto transformer voltage starting --- Applications: Suitable for power 14KW-160KW three-phase squirrel cage induction motors non-frequent voltage starting (other power of the motor according to the actual power to match the capacity of auto corresponding drop pressure start transformer). Three-phase auto transformer voltage starting --- Features: 1) Structure ---- The series transformer with 65%, 80% two starting voltage tap, if need smaller starting torque can be used 65% of taps large torque can be used 80% of taps. The transformer can be fitted in the XJ01, JJ1 series auto decompression starting box as the main components; 2) energy-saving low-noise high-quality cold-rolled silicon steel ---- stacked; special dipping process, effectively reducing the running time The vibration and noise; the new technology, the introduction and use of high temperature insulation material and design of new technologies, the transformer more energy, more quiet. Saving low noise coil ventilation slots left, smooth air flow, reduce the coil temperature; 3) High reliability ---- reasonable structure, high efficiency, waveform distortion, easy to use and reliable and can run for a long time, the performance indicators in full compliance GB / 6450 dry-type power transformer standards. You can isolate the main power supply, anti-shock, anti-interference, lightning; 4) ---- environmental characteristics of heat resistance, moisture resistance, stability, chemical compatibility, low temperature resistance, radiation resistance; 5) more ---- functionality from a single transformer to the Multifunctional with air-cooled, protective housing, transformers and other transformer development. ★ Note: 1) Wiring ---- autotransformer high pressure side into the grid, low pressure side connected to the motor, there are several different voltage taps for selection ratio; 2) Select the transformer capacity ---- autotransformer The power should be consistent with the motor power, motor power if less than autotransformer starting current due to heat damage winding insulation burned; 3) with the motor load test after test ---- correct, restore wiring and motors . Again with an electric motor, the test should be noted that starting and running the grafting process, pay attention to changes in the motor sound and current, motor starters is difficult without exceptions, if any abnormal situation should immediately stop operation; 4) starts again --- - auto-voltage start-up circuit is not frequent operate, if you start not successful, the second starting interval of four minutes or more, after two consecutive start, should power up and running again four hours, which is to prevent inner winding autotransformer start-up current is too large heat damage autotransformer insulation.