Offers complete protection to motor against over voltage, under voltage, over current, over-heating, ground fault.) auto method:- installation of mechanical by-pass arrangement across the booster or hydro kinematic drive or variable frequency drive (vfd).
this can be ensured by any of the following means;- 1.) manual method:- initially the fore pump is switched on until the required cut in pressure is achieved and there-after the booster is switched on.0001 torr. (e) it has very low pump friction losses, hence requires relatively low power for high volumetric speeds.
this enables the booster to be integrated into any computer-controlled operating system. the major advantages are:- (a) can be integrated with any installed vacuum system such as steam ejectors, water ring pumps, oil sealed pumps, water ejectors, etc.
everestprevents over-heating of boosters. qn/mn where v = inlet volume flow rate m3/hr. when the backup-pump and booster are started the drive reduces the booster speed to the pre-set levels and as the vacuum is created the booster speed picks up, reaching the final pre-set speed, giving most optimum performance over the entire range.
of gas /vapor. use of pressure switch, hydro kinematic drive and by pass valves is necessary to prevent the overloading of the booster. leaders in vacuum booster technology boosters for vacuum process © everest transmission january, 2005. 4.),