Protection & Control Seminar

Distribution Protection & Control Track

To help you find the educational programs of most interest and value for you, the Protection & Control Seminar is divided into two program tracks. Attendees will stay within one track throughout the entire seminar.

Monday, July 26, 2021

7:00-8:00 AM
Breakfast & Attendee Check-in

  • Please check-in for the seminar and pick-up your badge and seminar materials at the Beckwith Electric Help Desk.

8:00-8:30 AM
Welcome & Introductions

8:30-10:00 AM
Distribution Feeder Protection

  • Distribution System Reliability
  • Standards and Practices
    • IEEE C37.230
  • Protection Philosophies
  • Causes of Faults
  • Fault Types
  • Distribution System Construction and Configurations
  • Impedances Used in Fault Current Analysis

10:00-10:15 AM

10:15 AM-Noon
Distribution Feeder Protection (Continued)

Noon-1:00 PM

1:00-2:45 PM
Distribution Feeder Protection & Control

Distribution protection is a complex scenario with many elements: relayed feeder breakers, recloser controlled feeder breakers, line reclosers, sectionalizing switches, sectionalizers and fuses. The application and location of the protective and sectionalizing infrastructure predicates the application and coordination of protection. Compounding the complexity is the application of DMS/DA and presence of DER/DG. The session covers the distribution topology and protective infrastructure, and application of settable of relays and recloser controls.

  • Fault Calculations and Settings
  • Protection Devices and Characteristics
  • Protective Device Selection and Application
  • Protective Functions of Relays and Controls
  • Ground Fault Detection Method
  • Automatic Reclosing
  • Time Overcurrent Device Coordination
  • Special Protective Applications
  • Fault Event Analysis

2:45-3:00 PM

3:00-5:00 PM
Distribution Feeder Protection & Control (Continued)

Monday Evening Activities

5:45-8:00 PM
Beach Volleyball Tournament
Beach Volleyball Courts Beachside behind the Sandpearl Resort
(Attendee Guests and Families Welcome!)

  • Power Grid Engineering is sponsoring its popular Annual Beach Volleyball Tournament starting at 5:45 PM at the Beach Volleyball Courts Beachside behind the Sandpearl Resort.
  • All skills are welcome to play volleyball or join us for snacks, drinks and networking.

Tuesday, July 27, 2021

7:00-8:00 AM

8:00-9:45 AM
Distribution Automation: FLISR

  • As the distribution system becomes more complex and dynamic, the trend in the industry is to automate more of the distribution operation.  This session will focus on various Fault, Location, Isolation, and Service Restoration (FLISR) schemes.  FLISR is utilized to limit the number of customers affected by a permanent fault by isolating the fault and utilize other sources to reconfigure the system to restore as many customers as possible.  The proliferation of Distributed Energy Resources (DER) also needs to be taken into account with distribution automation.  These schemes vary in complexity from simple throw over, to more complex loops utilizing peer-to-peer IED communication, and the most advanced that incorporates system models.  Scripted or logic-based FLISR schemes will be compared to ones that incorporate system models, from more simplistic models to full Geographic Information Systems (GIS) integration.

9:45-10:00 AM

10:00 AM-Noon
Feeder Protection Calculations & Settings

  • Feeder Protection Calculations Example
  • Short Circuit Current
  • Per Unit Quantities
  • Symmetrical Components
  • Fault Types
  • Fault Current Calculations Example

Noon-1:00 PM


1:00-2:45 PM
Distributed Energy Resources Operation, Control & Protection

Distributed Electric Resource (DER) is increasing its penetration into the distribution system. This technical session provides a background into DER operation and associated control and protection considerations for conventional and inverter-based power sources. We will review types of DER/DG and the modes in which they can operate in parallel with the distribution system. Key aspects of IEEE 1547 and a sample DER interconnection screening process are highlighted. Details of on-site standby power system conversion to operate in parallel with the distribution system are shown. Protection methodology at the point-of-common coupling (PCC) and point-of-interconnection (PI) is explored for all types of DER. A treatment of distribution system protection and control considerations and applications with DER is discussed.

  • Define Distributed Electrical Resource (DER)
  • Explore Types of DERs
  • Why DER?
  • Utility and Facility Drivers for DER
  • Mission Critical Power and Conversion to DER
  • Rates and DER Operational Sequences
  • Industry Concerns
  • IEEE 1547: Industry DER Guide
  • Sample Utility DER Interconnection Guide
  • Interconnection Protection: “The Five Food Groups”
    • Anti-islanding
    • Powerflow
    • Fault detection
    • Abnormal operating conditions
    • Reconnection
  • Interconnection Transformer Impacts
  • Generator Types and Impacts
    • Synchronous
    • Induction
    • Asynchronous (Inverter Based)
  • Example Protection Applications
  • Distribution Protection Coordination Issues
    • Directionalization
    • Reclosing coordination
  • Smart Grid / Microgrid and DER
  • Impact of IEEE 1547-2018
    • Fault ride-through
    • Reactive support and voltage control
  • System Control with DER
    • LTC, Regulator and Capacitor Control Issues

2:45-3:00 PM

3:00-5:00 PM
Distributed Energy Resources Operation, Control & Protection (Continued)

Tuesday Hands-on Breakout Session

Register early as seats will be limited for Breakout Session!

Distribution Feeder Protection Hands-on Testing Lab Breakout Session
8:00-10:00 AM
10:00 AM-Noon

Tuesday Evening Activities

7:00-10:00 PM
Hospitality & Demo Expo
Sandpearl Resort: Harbor Ballroom

  • Please join us Tuesday evening from 7-10 PM in the Harbor Ballroom at the Sandpearl Resort.
  • Beckwith Electric and Special Guests will host a Hospitality & Demo Expo for a time of networking and information sharing including food and drinks.
  • Don’t miss the raffle at the Hospitality & Demo Expo! Visit all of the demos during the Expo and have each representative stamp a raffle card. When your card is full, turn it in at the raffle table. There will be a drawing for some great prizes at the end of the reception. Must be present to win!

Wednesday, July 28, 2021

7:00-8:00 AM

8:00-10:00 AM
Transformer Protection

Transformers are subject to internal faults, the effects of external faults and abnormal operating conditions impressed by the power system events the transformer has no control over but must cope with. False (nuisance) trips are costly as the transformer and load are disconnected. Inability to trip due to lack of sensitivity, lack of certain protections or deficiencies in protection application may cause severe damage to transformers, negatively impacting power flows, impacting power quality and compromising stability. Achieving the ideal balance of secure and dependable protection involves use of an array of elements that protect the transformer from prolonged internal faults, excessive through faults and when challenged by power system faults and anomalies.

  • Why transformers fail
    • The cost of failures
  • IEEE C37.91, Guide for Power Transformer Protection
    • IEEE Devices used in Transformer Protection
    • Transformer Protection Review
    • Transformer Protection Functions
  • Explore Protection Functions
    • 87T Phase Differential Characteristic
      • Compensation in Digital Relays
      • Relay Configuration: Winding Arrangement and CT Connection
  • Overcurrent based (50, 51, 50N, 51N, 46)
  • Through fault protection (TFM)
    • Current Summing & Through-Fault
  • Overexcitation (24)
    • Generating plant causes
    • T&D system causes
    • Protection Against Overexcitation – V/Hz versus 5th Harmonic
  • Phase Differential (87T)
    • Unique Issues Applying to Transformer Differential Protection
      • CT performance issues (saturation, remnant flux, tolerance, rating)
      • Percentage differential characteristics with variable percentage slopes
      • Internal ground fault sensitivity
      • Restraints for inrush and overexcitation
        • Overexcitation 87T Blocking Restraint – Failure to detect nascent fault
        • Overexcitation Adaptive 87T Pickup Restraint – Detects nascent faults
    • Adaptive restraint for security
    • Point-on-Wave Switching Inrush
    • Cross Phase Averaging
    • Switch-onto-Fault
  • High Set Phase Differential (87H)
  • Ground Differential (87GD), Restricted Earth Fault (REF)
  • Interface and Analysis Software: Desirable Attributes
    • NERC “State of Reliability”
  • Elegant Simplicity – Realization of configuration, settings, logic, monitoring
  • Trany Shop – Test and Commissioning

10:00-10:15 AM

10:15 AM-Noon
Transformer Protection (Continued)

Noon-1:00 PM

1:00-2:45 PM
Transformer Protection (Continued)

2:45-3:00 PM

3:00-5:30 PM
Transformer Protection Calculations & Settings – Differential Elements

Building on the base knowledge covered in Transformer Protection Fundamentals, calculations for protective elements are developed. Depending on the element, these calculations use nameplate data, system data or a combination of the two. Margin considerations are explored and impacts on element reliability are discussed, as well as element interdependencies with protection and control in the transformer zone, whether in generation, transmission or distribution.

Wednesday Hands-on Breakout Session

Register early as seats will be limited for Breakout Session!

Transformer Protection Hands-on Testing Lab Breakout Session
12:30-3:00 PM
3:00-5:30 PM

Wednesday Evening Activities

6:00-8:00 PM

Happy Hour at The Brown Boxer Pub & Grille
Across the street from the Sandpearl Resort
Attendee Guests and Families Welcome!

  • Join Beckwith Electric and your fellow conference attendees for a reception with food and cocktails at the Brown Boxer from 6:00-8:00 PM.
  • The Brown Boxer is located right across the street from the Sandpearl Resort at 483 Mandalay Ave, Clearwater Beach, FL 33767.


Thursday, July 29, 2021

7:00-8:00 AM

8:00-10:00 AM
Distribution System Optimization

  • Volt-VAr Control (VVC)
  • Volt-VAr Optimization (VVO)
  • Conservation Voltage Reduction (CVR)
  • Allowable Voltage Ranges
  • Equipment and Devices used in Volt-var Control
    • LTC, Voltage Regulator and Capacitor Controls
  • Volt-var Control Technologies and Tradeoffs
  • Cost-Benefit Analysis of VVO
  • Verification, Assessment and Monitoring Requirements for CVR

10:00-10:15 AM

10:15 AM-Noon
Distribution System Optimization (Continued)

Noon-1:00 PM

Thursday Optional Post-Seminar Product Training

Optional Post-Seminar Product Training

Attend free training with an in-depth study on the associated software with each of the following products. You will learn settings configuration, and how to setup, retrieve, and read oscillography, sequence of event records, and other valuable information within our software.


  • Power Plant Protection Track
    • 1:00-2:30 PM
      • M-3425A Comprehensive Generator Protection System
    • 2:45-4:00 PM
      • M-3311A (2, 3, or 4-Winding) Transformer Protection System
    • 4:00-5:00 PM
      • M-7651A D-PAC Protection, Automation and Control System for Power Distribution Applications

  • Distribution & Control Track
    • 1:00-3:00 PM
      • Application, Considerations, and Settings for VVO
        Learn how to implement IVVC/VVO methodology using the Beckwith M-2001D LTC Transformer Control and M-6200A Regulator Control. The VAR biasing effect used in controls will either allow or disallow the capacitors to switch based on voltage and VAR flow conditions on the feeder, and only employ a tapchange when voltage deviations are not based on excess or deficient VAR conditions. The resultant VAR and voltage feedback to the LTC/regulators is used in adaptive schemes for CVR and normal operation.
    • 3:15-5:00 PM
      • Transformer, Regulator, and Capacitor Controls
Friday Beckwith Factory Tour

7:30-8:30 AM

8:30 AM-1:15 PM
Factory Tour (Optional)

Visit the Beckwith Electric factory for a behind-the-scenes look at our advanced manufacturing and services capabilities at work. Discover how we turn raw material into cutting-edge technology. Experience the Beckwith Electric commitment to quality, equipment reliability, testing procedures, new product development, and customer service. Talk to Beckwith Electric technical and product support staff and learn first-hand about our technology through live product demonstrations.

Includes transportation to and from the Sandpearl Resort. Estimated arrival back at the Sandpearl is 1:15 PM.


  • 8:30-8:35 AM
    Load Shuttle Bus for Beckwith Headquarters.
    Please go directly to the bus in front of the Sandpearl Resort on Mandalay Avenue. This is down the steps directly on the main road in front of the hotel. The Shuttle Bus will not load in the valet parking area.
  • 8:35-9:15 AM
    Travel to Beckwith Headquarters.
  • 9:15 AM-12:30 PM
    Beckwith Electric Factory Tour & Product Demo
  • 12:30-1:15 PM
    Travel Back to Hotel.