Electrical Preventive Maintenance What is the definition of Electrical Preventive Maintenance?

Electrical Preventive Maintenance What is the definition of Electrical Preventive Maintenance? The scheduled inspection, testing and maintenance of critical electrical components!

Electrical Preventive Maintenance Scheduled!!! 1) Start with a plan 2) Depending on the type of maintenance and the environment the frequency can vary from one to five years. 3) Be Proactive verses Reactive.

Electrical Preventive Maintenance Inspection, Testing & Maintenance 1) IEEE-- The Institute of Electrical and Electronic Engineers. 2) NETA --National Electrical Testing Association. 3) Good common sense.

Electrical Preventive Maintenance CRITICAL!!!! 1) No guarantees, reduce your probability of an electrical crisis or outage. 2) Does it cost you or your company money or is it just inconvenient. 3) Time period for evaluation, typically one hour. 4) How is the electrical distribution system designed.

Electrical Preventive Maintenance High Voltage verses Low Voltage Low Voltage- 120 to 600 volt equipment High Voltage - over 600 volt equipment

Electrical Preventive Maintenance High Voltage verses Low Voltage 1) Different types of testing, contact verses non-contact. 2) Energized cleaning tightening. 3) Critical verses Non-Critical 4) Typically different types of deficiencies.

Electrical Preventive Maintenance Typical Low Voltage Deficiencies 1) Overloading 2) Code violations 3) Loose connections 4) Trash, contamination or storage 5) Harmonics

Electrical Preventive Maintenance Typical High Voltage Deficiencies 1) Corona or tracking 2) Stress cone failure 3) Loose connections 4) Dirt or contamination

Electrical Preventive Maintenance Harmonics 1) Caused by the switching or disruption of the normal 60 cycle sine wave. 2) Tripling harmonics 3rd, 9th or 15th. 3) Motor rotation. 4) Annoying verses destructive harmonics.

Electrical Preventive Maintenance Infrared Analysis 1) Imaging verses scanning. 2) Measures infrared wave emissions not temperature. 3) Emissivity 4) Is not a cure-all, do not use a screwdriver when you need a hammer. 5) High voltage verses low voltage.

Electrical Preventive Maintenance Ultrasound Leak Detection 1) Microphone 2) High voltage 3) Pole leads 4) Steam traps 5) Motor bearings

Electrical Preventive Maintenance Transformer Oil Testing 1) Dissolved Gas Analysis 2) Oil Quality Profile 3) PCB Analysis 4) SD Meyers 5) Taking samples 6) Frequency

Electrical Preventive Maintenance Polarization Index Testing 1) Megger Test 2) Capacitance Test 3) Frequency