描述
电气设备保护自动装置要求可靠性，动作速度快。发变组保护动作速度要求在40ms以内；自动准同期采用同步电压方式，转速、电压调整和滑压控制要求在5ms以内；电压自动调整装置快速励磁要求时间极短；厂用电快切装置快速切换时间一般小于60～80ms，同步鉴定相位差5°～20°。
Nash 904R2 904R1 vacuum pump
Nash CL9001 CL9002 vacuum pump
Zyra Research ZRI-XP-1×1 Abatement System Used
Zyra Research ZRI-XP-1×1 Abatement System Used
Head/Lobe for Nash HP liquid ring compressor, 316 SS
Three Zones Tube Furnace with Vacuum Pump for CVD
Edwards Booster Pump
Nash CL3001 CL3002 stainless vacuum pump
Seiko Edwards STPA2203 Turbo Pump Refurbished Unused
Nelmor 60 Hp Granulator, Bin, Vacuum Pump, Conveyor
1989 Vac Con V290TR Vacuum Jet Rodder Truck, Good cond.
SIHI LPH 85353 Liquid Ring Vacuum Pump 1600 CFM 28″ Hg
Patterson Kelley Stainless Steel Vacuum Dryer
Patterson Kelley Stainless Steel Vacuum Dryer
Patterson Kelley Stainless Steel Vacuum Dryer
GODWIN DRI PRIME 8″ ELECTRIC VACUUM PUMP **75 HP
Osaka Turbo Molecular Pump TG2003M Vacuum
