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Hello all
In Our 9FA machine, we have monthly schedule change over of all fans and pumps motors. Problem is, while we, change over 88BT 1/2 or 88VG 1/2 ,at MARK VIe alarm viewer " EXCESSIVE LOAD COMPT VENTL-HAZGAS PROT COMPROMISE, L30LCVFLT" and EXCESSIVE TURB COMPT VENTL-HAZGAS PROT COMPROMIZE, L30CVFLT" two alarm appeared.
I Checked logic from TOOLBOXsT already, It seems, as for example, while we change over, both 88VG fans run for (60 secs), or may be both fan hold outlet pressure for 60 secs.
My Questions are:
1. If both fans of 88VG and 88BT run for excessive time, what problem may occur? Because, as far I know, if load compartment and turbine compartment venting is too much, it should be good for those area. so, why this type of alarm is set by GE?
2. According to logic, I checked, while we change lead/ lag fan position, the fan should change over immediately. So why, also lag fan outlet pressure hold the pressure for a long time?
Thanx all
In Our 9FA machine, we have monthly schedule change over of all fans and pumps motors. Problem is, while we, change over 88BT 1/2 or 88VG 1/2 ,at MARK VIe alarm viewer " EXCESSIVE LOAD COMPT VENTL-HAZGAS PROT COMPROMISE, L30LCVFLT" and EXCESSIVE TURB COMPT VENTL-HAZGAS PROT COMPROMIZE, L30CVFLT" two alarm appeared.
I Checked logic from TOOLBOXsT already, It seems, as for example, while we change over, both 88VG fans run for (60 secs), or may be both fan hold outlet pressure for 60 secs.
My Questions are:
1. If both fans of 88VG and 88BT run for excessive time, what problem may occur? Because, as far I know, if load compartment and turbine compartment venting is too much, it should be good for those area. so, why this type of alarm is set by GE?
2. According to logic, I checked, while we change lead/ lag fan position, the fan should change over immediately. So why, also lag fan outlet pressure hold the pressure for a long time?
Thanx all