ESP Maintenance

• High Voltage Energization System
• Recording Electrical Readings
• Importance of maintaining the Dust Removal System
• Maintaining Rapper Operation
• How to Limit Corrosion of your ESP
• Tips for Maintaining Good Gas Flow Distribution

An electrostatic precipitator creates appreciable amounts of ozone, especially under an air load. High Voltage, negatively charged discharge electrodes, create a corona discharge within a confined area between two positively charged collecting electrodes (gas passages). When this occurs in the presence of oxygen, ozone is created. After the precipitator has been off-line for repairs or a unit outage, it is a common practice to "air-load" the precipitator to ensure that it is ready for service and free of grounds or other problems before the unit is brought back into operation.

• Follow all plant safety rules
• Make sure all ground switches are in good condition and properly used
• Follow all confined space requirements
• Follow the safety key interlock system

Most problems are identified by an alarm.
All alarms should be proven/verified and addressed.

• Process Conditions
• Seal Air System
• Insulation and Lagging
• Safety Key Interlocks