Training Voltage Regulators, Capacitors, Reactors and Reclosers


Utilities are required to provide power to their customers within a specific range of voltage. Voltages that are outside of that range may damage equipment or cause it to operate inefficiently. For example, voltage that is significantly lower than the desired range may cause lights to dim and motors to burn out. Voltage that is significantly higher may cause lights or appliances to fail prematurely. In an ideal ac power system, the voltage and frequency at every supply point would be constant and free of harmonics, and the power factor would be unity. In particular these parameters would be independent of the size and characteristics of consumers’ load. In an ideal system, each load could be designed for optimum performance at the given supply voltage, rather than for merely adequate performance over an unpredictable range of voltage. Moreover, there could be no interference between different loads as a result of variations in the current taken by each one.


  • Describe why voltage regulation is needed in a transmission and distribution system
  • Explain the Effect of Raising Voltage at the Substation Bus
  • Identify the main components of automatic voltage regulator
  • Identify the principle of operation of the auto reclosure
  • Explain the typical locations of auto-reclosure on the distribution system
  • Identify the advantages of installing auto-reclosures on the distribution system
  • Describe how a sectionalize operates in a reclosure circuit
  • Describe how an automatic voltage regulator adjusts voltage

Who Should Attend?

In general, electrical power engineers, supervisors and qualified distribution system technicians can which work in substation and operation & maintenance of distribution department take part in this course.

Course Outline


      1.1 Describe why voltage regulation is needed in a transmission and distribution system

      1.2. Voltage Standards

      1.3. Factors affecting voltage drop along distribution feeders

      1.4. The Effect of Raising Voltage at the Substation Bus

      1.5. The effect of load power factor on line voltage drop

      1.6. Functional of the capacitor in raising voltage

      1.7. Purpose of auto-reclosure (ACR)

      3.2.2 Identify the main components that enable a step voltage regulator to adjust voltage

      3.2.3 Describe how an automatic voltage regulator adjusts voltage

      7.4 Physically Disconnecting the Regulator

      7.5 Regulator Installation






General Notes

  • All our courses can be facilitated as Customized In-House Training course.
  • Course duration is flexible and the contents can be modified to fit any number of days.
  • As for Open Enrolment Courses, we offer our clients the flexibility to chose the location, date, and time and our team of experts who are spread around the globe will assist in facilitating the course.
  • The course fee includes facilitation, training materials, 2 coffee breaks, buffet lunch and a Certificate of successful completion of Training.
  • FREE Consultation and Coaching provided during and after the course.


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