Pole top capacitors are connected to circuits to accept and store charges. They are used to help overhead distribution feeder systems operate more efficiently and reliably. This course covers the basic theory and operating characteristics of overhead capacitors, explains how to detect problems in their operations, and demonstrates how to safely replace them when necessary.
- Identify pole top capacitors.
- Describe the basic construction and general operation of pole top capacitors in an overhead distribution system.
- Describe how to visually inspect, remove, and replace a pole top capacitor.
SUBJECTS AND OBJECTIVES
Pole Top Capacitors
- Describe the basic construction and operation of a typical capacitor used on a distribution feeder.
- Define the term “power factor” and explain how capacitors can be used to improve power factor.
Troubleshooting Pole Top Capacitors
- Describe the basic parts of a capacitor bank installed on an overhead feeder.
- Identify typical protective devices used on a capacitor bank and describe their function.
- Identify items that should be checked during a visual inspection of a capacitor bank.
Pole Top Capacitor Replacement
- Describe or demonstrate how a pole top capacitor bank may be isolated and safely discharged.
- Describe or demonstrate how a damaged pole top capacitor bank may be safely removed and replaced.