PUMP STATION CONTROL PANELS
PUMP STATION CONTROL PANELS
PUMP STATION CONTROL PANELS
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<strong>PUMP</strong> <strong>STATION</strong><strong>CONTROL</strong> <strong>PANELS</strong>
ENCLOSURES• RATINGS• MATERIALS OFCONSTRUCTION• OPTIONS
TYPICAL NEMARATINGS• NEMA Type 1• NEMA Type 12• NEMA Type 3R• NEMA Type 4• NEMA Type 4X• NEMA Type 7
Enclosure Options• Climate Control (Vents, Fans,Air Conditioners)• Mounting (Pad, Wall, Strut)• Profile (Tall 2-Door, Low DoubleSided)• Accessibility (Dead Front)• Future Additions (SpareSpace, Equipment Sizing)
Components• Disconnects (Fuse vs. Breakers)• Generator Provisions• Motor Protection (Fuses, Breakers,Thermal)• Motor Controls (Starters, Soft Starters,Drives)• Transformers• Logic (Relay, Controllers, PLC)• Alarm Dialers / Telemetry• Pilot Devices• Intrinsically Safe
DisconnectsFusible or Circuit Breaker
Generator ProvisionsAuto / Manual Transfer Switches andGenerator Connection
Motor Protection
Motor Controls
Transformers
Logic
Alarm Dialers / Telemetry
Pilot Devices
Intrinsically Safe
Maintenance• Corrosion Control• Component Inspection• Wire Inspection• Level Device Maintenance
Corrosion Control• Keep Enclosure Dry (Rust Inhibitors,Door Gaskets, Panel Heaters)
ComponentInspection• Socket Mounted Devices inSockets• Light Bulbs (Pilot Lights / Enclosure Lights)• Blown Fuse Indicators• Tripped Breaker Indicators• Tight Connections (Mounting / Wire)• Visible Damage
Wire Inspection• Color• Insulation• Frayed Ends• Off Termination Points• Other Visible Damage
COMMON LevelDeviceS• Float Switches• Pressure Type LevelTransmitters• Bubbler Systems• Ultrasonic LevelTransmitter/Transducers• Radar Level Transmitters
FLOAT SWITCHMAINTENANCETaskFrequency1. Cleaning Stilling Well,Floats or Float GuideEvery one or two weeks2. Calibrate Check linkages uponcleaning floats
PRESSURE TYPE LEVELTRANSMITTERSMAINTENANCETaskFrequency1. Clean Diaphragm Check every week until ahistory is established. Acoated diaphragm willcause faulty readings2. Calibrate Every monthly or aftercleaning
BUBBLER SYSTEMSMAINTENANCETaskFrequency1. Check Air Flow to DipTube2. Calibrate LevelTransmitterDaily. Accuracy isdependant upon air flowbubbling out at the end ofthe pipe at the tank bottomEvery two months3. Purge Dip Tube Daily for solids bearingapplications. Weekly forcleaner applications.4. Check Air Filter Weekly. This could have aneffect on the air flow to thedip tube.
ULTRASONIC LEVELSYSTEMS MAINTENANCETaskFrequency1. Calibrate (Verify) Every three months or perregulations from DEQ2. Clean off Sensor Head During calibration. Sensor canbecome coated withcondensation causing falsereadings
MWEA <strong>PUMP</strong> <strong>STATION</strong>MAINTENANCE 2012
MWEA <strong>PUMP</strong> <strong>STATION</strong>MAINTENANCE 2012
MWEA <strong>PUMP</strong> <strong>STATION</strong>MAINTENANCE 2012
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