Below are the twelve 1.5 hour webinars for 2021. Each webinar will consist of one hour of instruction and a thirty-minute question and answer session. All webinars will begin at 10:00am Central Time. Most presentations will be in PowerPoint format with handouts in pdf format, although more extensive materials may be available for some of the sessions.
2021 WEBINAR SCHEDULE /
When a pole is unable to support wind loading and conductor tension, guys and anchors are required. This webinar focuses on the understanding of the forces to be supported by guys and anchors. Further, the strength rating of the guy and anchor assemblies are required with emphasis on NESC requirements. The effect of guys on the strength of the assembly will be addressed.
Most down guy situations are simple, straight forward application to support wind loading and conductor tension, but exceptions are inevitable. This webinar addresses guying options to solve problems of insufficient guy leads and space limitations on poles. Specific applications to be addressed are span guys, spread guys, and sidewalk guys.
Many accidental contacts occur near buildings. This webinar addresses the clearances required by NESC Table 234-1 when passing by a building, but not attached to the building. This presentation provides a working understanding of the
clearances required over or beside buildings and other
structures.
clearances required over or beside buildings and other
structures.
The NESC provides methods and requirements for grounding distribution systems. Proper grounding is an important component of safety for line workers and the public. This webinar addresses the safety goals and describes approved methods for effectively grounding the system neutral and other non-current carrying equipment. Different types of grounding
electrodes are covered which provide options for achieving a well-grounded system. The rules for grounding guys and insulating guys are also addressed including secondary guys and span guys. Equipment to be grounded is covered along with common methods used by utilities.
electrodes are covered which provide options for achieving a well-grounded system. The rules for grounding guys and insulating guys are also addressed including secondary guys and span guys. Equipment to be grounded is covered along with common methods used by utilities.
More roof top solar and commercial solar are being install by consumers to defray their energy bills. Batteries such as the Tesla Powerwalls are gaining in popularity. The presentation provides a detailed review and application of IEEE Standard 1547 for interconnection of inverter-based systems including solar and batteries. The presentation will focus on residential scale interconnection.
There are many different manufacturers of pad-mounted switchgear. This webinar will explore the characteristics of different devices with summaries of capabilities and applications. This will include insulating mediums (air, oil, SF6, solid dielectric), overcurrent protections, automation and mounting methods.
This webinar will discuss placing distribution capacitors to maintain an efficiently operating distribution system. Issues assessed will include defining var flows, and their impact on the distribution system. Placement of capacitors must consider daily and seasonal variability of var flows which will be presented in the webinar. Strategies for placement of capacitors will be presented including voltage support, loss
reduction, and capacity release.
reduction, and capacity release.
Separation and spacing requirements for conductors on the pole are provided throughout the NESC. Often this spacing is reflected in the construction specifications. The webinar will explore the spacing
requirements and how those requirements affect the design. In addition, the webinar will address the requirements of the NESC as it relates to safe clearances for communication workers and supply utility workers.
requirements and how those requirements affect the design. In addition, the webinar will address the requirements of the NESC as it relates to safe clearances for communication workers and supply utility workers.
Fuses are the most common overcurrent devices used on overhead power systems. This webinar will discuss the characteristics and application limitations of expulsion fuses. The concept of fuse savings
and the coordination requirements for upstream reclosers will be explained. The methods used for sizing fuses to protect overhead taps will be addressed. In addition, the webinar will discuss coordination methods used to coordinate multiple fuses in services.
and the coordination requirements for upstream reclosers will be explained. The methods used for sizing fuses to protect overhead taps will be addressed. In addition, the webinar will discuss coordination methods used to coordinate multiple fuses in services.
Designing a double circuit line is similar to designing a single circuit with an added degree of complexity. This webinar discusses the challenges of designing a double circuit line including large angle poles, equipment poles, circuit spacing, and guying and anchoring.
Reliability, expressed as SAIDI, SAIFI, and CAIDI, is used to help compare the reliability of a system from year to year as well as comparison to other utilities. The webinar will explain the indices (SAIDI, SAIFI and CAIDI), and the use of outage data to develop actionable methods for improving reliability. The webinar will discuss methods for improving reliability with several case studies.
Mitigation of power quality issues due to motor starting on the power system can be one of the most difficult challenges faced by electric utility personnel. This presentation discusses how to prepare a motor starting analysis for various types of motor starters. The impact of the various motor starters on the starting current and starting torque will also be discussed as well as mitigation techniques.
