Protective Relay Maintenance, Testing and Calibration
Available for onsite training GET A QUOTE

Protective relays are decision-making elements in the protection scheme for electrical power systems. They monitor circuit conditions and initiate protective action when an undesired condition is detected.

Any facility with generating capability, and that is generating into the power grid, is subject to regulation by NERC, the North American Electric Reliability Council and their Standard PRC-005-1b — Transmission and Generation Protection System Maintenance and Testing as internal system faults can affect the grid.

Protective relaying serves many functions including isolating faulted circuits or equipment from the remainder of the system so the system can continue to function, limiting damage to faulted equipment, minimizing the possibility of fire or damage to adjacent equipment, and minimizing hazards to personnel.

When they are required to operate because of a faulted or undesirable condition, it is imperative that protective relays function correctly. A strong maintenance and test program will keep your protective relays in a high state of readiness ensuring they respond properly to normal and abnormal conditions and help you avoid equipment damage, prolonged downtime and employee injuries.

This 5 day course is 80% hands-on and will be customized to your electrical system and will provide your protection and control technicians with the skills to maintain and test your relays.

Unfortunately, this course does not currently have any upcoming dates.
Yet, if you're interested in it, please chat with our sales team
or fill out a quote request so we can get one scheduled in your area.

  • Michael Wilgosh, Imperial Oil
    "Loved the course, hands on testing was great. The discussions about our on site specific problems were answered with references to CSA Z462/463 CEC and experience making it valuable."
  • Dustin Yarosh, Imperial Oil
    "Very eye opening, especially since I do not do enough relays at work. I can't wait to use this knowledge at work.
  • Sam Butterfield, Imperial Oil
    "Very good course and great facility to perform all the labs we need. The instructor was knowledgeable and presented the material clearly. I would recommend this course."
  • Steve Wispinski, Imperial Oil
    "Course was excellent. Hands on in the trailer made the course. Classroom stuff is important, but working with equipment helps huge."
  • Brandon Campbell, Imperial Oil
    "The fact that training was offsite was very valuable due to no interruptions. Equipment used for demonstration was very valuable and could relate to our equipment. Troubleshooting faults is very valuable. 10/10, would take this course again. Excellent."

Course topics

I. Electrical System Protection Requirements

Objective: Relate the requirement for accurate relay calibration to the requirements of the electrical system

II. Client Protection System Design

Objective: Describe how protective relays protect your electrical system

III. Protective Device Coordination

Objective: Demonstrate the requirement to coordinate protective devices

View all topics

I. Electrical System Protection Requirements

Objective: Relate the requirement for accurate relay calibration to the requirements of the electrical system

  • Electrical Code Requirements
  • NERC - North American Electric Reliability Council Requirements

II. Client Protection System Design

Objective: Describe how protective relays protect your electrical system

  • Typical AC 3 Line Schematics
  • Typical DC Schematics
  • Client Single Line
  • Generator Protection
  • Transformer Protection
  • Feeder Protection
  • Bus Protection
  • Motor Protection

III. Protective Device Coordination

Objective: Demonstrate the requirement to coordinate protective devices

  • Time Current Plots
  • Damage Curves
  • Characteristic Curves
  • Discrimination
  • Selectivity
  • Coordination

IV. Calculations

Objective: Perform electrical fault calculations

  • Full Load Currents
  • Basic Short Circuit

V. Instrument Transformers

Objective: Test the instrument transformers that connect the power system to the protective relay

  • Current Transformers
  • Potential Transformers

VI. Protective Relay Description

Objective: Describe the component parts and their purpose in a protective relay

  • Purpose of Protective Relaying
  • General Overview
  • Relay Classifications
  • Device Function Numbers

VII. Basic Construction and Operating Principles

Objective: Explain the construction and operation of a protective relay

  • Electrical Subassemblies
  • Electromechanical Protective Relay Construction
  • Design Requirements

VIII. Types of Protective Relays - Application and Operation

Objective: Describe the different types of protective relay and how they operate

  • Distance Relays (21)
  • Synchronising and Synchronism Check Relays (25)
  • Undervoltage Relays (27)
  • Directional Power Relays (32)
  • Loss of Excitation (Field) Relays (40)
  • Phase - Balance Current Relays (46)
  • Phase - Sequence Voltage Relays (47)
  • Thermal Relays (49)
  • Time - Overcurrent and Instantaneous Overcurrent Relays (50/51)
  • Overvoltage Relays (59)
  • Voltage Balance Relays (60)
  • Pressure Relays (63)
  • Directional Overcurrent Relays (67)
  • Frequency Relays (81)
  • Lockout Relays (86)
  • Differential Relays (87)
  • Pilot Wire Relays (87L)
  • Sudden Pressure Relay
  • Bucholz Relay

IX. Protective Relay Degradation and Failure Modes

Objective: Describe failure modes of protective relays

  • Aging and Degradation Mechanisms
  • Failure Modes
  • Reliability and Failure Information

X. Recommended Maintenance Practices

Objective: Perform maintenance on protective relays

  • Background Information
  • Classification of Maintenance
  • Overview of Protective Relay Checks, Inspections and Tests
  • Determining Maintenance Intervals
  • Summary of Recommended Practices

XI. Mechanical Inspections and Checks

Objective: Perform mechanical inspections and check on protective relays

  • Preparation
  • Removing a Protective Relay from Service
  • Visual Inspection and Cleaning
  • Mechanical Checks and Adjustments
  • Functional Check

XII. Electrical Tests and Calibration

Objective: Test and calibrate protective relays

  • Test Preparation
  • Insulation Resistance Test
  • Induction Disk Pickup (or Dropout) Test
  • Induction Unit Timing Test
  • Indicating Contactor Switch (Seal-In ) Pickup and Dropout Test
  • Instantaneous Unit Pickup Test and Calibration
  • Slope Test
  • Angle of Maximum Torque Test
  • Reach Test
  • Offset Test
  • Induction Unit Control Test
  • Through Fault Test
  • Induction Unit Calibration
  • Fred Tanguay

    Years of Experience
    41

    With 30+ years of knowledge and experience gained from working in a variety of areas including power apparatus maintenance and commissioning, power engineering and design as well as training seminars for industrial and utility clients, Fred has a lot to offer students. In addition to an in-depth background in these areas, Fred also has qualifications in the following: - Occupational Health & Safety...

    • Bob Acutt, Koch Fertilizer Canada
      The instructor, Fred Tanguay was very knowledgeable and explained the theory very thoroughly; all of the questions were answered and explained. We were reminded of the importance of working safe.”
    • Mike Lysohirka, Areva
      “I do believe Fred does a great, thorough job teaching this course. With his experience in his past jobs, it has brought forward a great way to bring his awareness and safety for us as a tradesman.”
    • Duncan Paridaen, Syncrude Canada Ltd.
      “Fred Tanguy was a very knowledgeable instructor; he could answer all the questions. Good course I learnt a lot.”
    See Fred Tanguay CV
  • "Loved the course, hands on testing was great. The discussions about our on site specific problems were answered with references to CSA Z462/463 CEC and experience making it valuable."

    Michael Wilgosh, Imperial Oil
  • "Very eye opening, especially since I do not do enough relays at work. I can't wait to use this knowledge at work.

    Dustin Yarosh, Imperial Oil
  • "Very good course and great facility to perform all the labs we need. The instructor was knowledgeable and presented the material clearly. I would recommend this course."

    Sam Butterfield, Imperial Oil
  • "Course was excellent. Hands on in the trailer made the course. Classroom stuff is important, but working with equipment helps huge."

    Steve Wispinski, Imperial Oil
  • "The fact that training was offsite was very valuable due to no interruptions. Equipment used for demonstration was very valuable and could relate to our equipment. Troubleshooting faults is very valuable. 10/10, would take this course again. Excellent."

    Brandon Campbell, Imperial Oil

No itinerary information available!

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