星三角啟動器 星三角啟動控制箱由斷路器、交流接觸器、熱繼電器、按鈕、指示燈、電壓表、電流表等組成。電機在起動時采用星形接法，以降低繞組電壓，起動后切換到三角形接法，電機按正常電壓運行的一種降壓啟動方式。該方式可有效降低啟動電流，保護電機免受啟動電流燒毀。
適用于11kW~75kW大負載，啟動時間長的各種型號風機作不頻繁啟動、停止控制。如4-72、9-19、Y5-47、C6-46大慣性離心風機、羅茨風機等使用。

Star triangle start control box The Star Delta Startup Control Box consists of circuit breakers, AC contactors, thermal relays, buttons, indicator lights, voltmeters, and ammeters. When the motor is started, the star connection method is adopted to reduce the winding voltage. After starting, it is switched to the delta connection method, and the motor is operated according to the normal voltage. This method can effectively reduce the starting current and protect the motor from the starting current.
Applicable to 11KW~75kW large load, various types of fans with long starting time for infrequent start and stop control. Such as 4-72, 9-19, Y5-47, C6-46 large inertia centrifugal fan, Roots