Structure JD-BP37 Series VFD by the phase-shifting transformer, power cells and controller. 6KV / 250KW inverter has 15 power units Berg Show Qingdao, every 5 power cells constitute a phase series. 2. The air filter is normally replaced every 1000-1500 hours Qingdao Berg show, especially the use of harsh environment exhibition spaces Berg Germany, such as mining, ceramics factory, cotton, etc., it is recommended to replace the air filter every 500 hours. Qingdao best Xingchang air compressor air compressor, air compressor specializing in the sale of German Berg. Berg show, Xingchang pneumatic machinery, Berg provided by Germany show Xingchang Pneumatic Machinery Co., Ltd Qingdao. Berg show, Xingchang pneumatic machinery, Berg Show Germany Pneumatic Machinery Co., Ltd. Qingdao Xingchang (www.xckyj.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Cui Junbo.