The Tutorial Subcommittee of the PCIC Technical Conference is sponsoring six half-day tutorials on Thursday, September 23, 2010. Continuing education units, (0.4 CEU) will be awarded to each participant who pre-registers for the credits and who successfully completes a course and submits the required CEU form.  Click Here for more information on obtaining CEU credits.

Light refreshments will be provided during the sessions. A lunch will be provided between the morning and afternoon sessions, (12:00 Noon to 1:00 pm) for all tutorial registrants. The price of lunch is included in the price of the tutorial, so plan to end your morning session or begin your afternoon session by having lunch with your fellow attendees. 

 The cost of one tutorial will be waived for any first-time PCIC conference attendee. This must be indicated on the registration form and completed prior to September 23^rd otherwise the full tutorial fee will apply.  (NOTE: Those who do not pre-register will be charged full price at the door. This policy has been implemented to ensure there are enough handout materials for all participants.)

API Motor Testing - Which Tests and Why

Abstract: This tutorial follows on from the paper presented at Anaheim “A USER’S GUIDE TO FACTORY TESTING OF LARGE MOTORS: WHAT SHOULD YOUR WITNESS EXPECT? The tutorial will develop the reasons a user would require specific factory tests for API machines.   The API data sheet page of tests will be used as the outline for the tutorial so it will be quite complete.   The tutorial will cover the following tests and procedures:

·       Analysis reports – Design review, Tortional and Lateral analysis

·         Inspections and Review of factory facilities, including test equipment

·         Stator pre-assembly tests – Core test, Surge comparison test, sacrificial coil tests.

·         Rotor pre-assembly tests – Component balance, final balance & balance sensitivity

·         Running (routine) tests

·         Complete tests – Efficiency, Locked Rotor, Heat Run, Sound Pressure

·         Special tests, Partial Discharge, Tip-Up, Sealed Winding, DC HiPot, Unbalance response.

Emphasis will be given to actual testing.   Following this tutorial, users should expect to be able to complete the “Test” part of the API data sheet for both Synchronous and Induction machines. 

Instructors:        Dennis Bogh                                     GE Energy Services – Motors 

                              Don Dunn                                          Aramco

                              Meredith Stranges                            GE Energy Services – Motors

                              Nick Stranges                                   GE Energy Services - Motors

The Protection of Medium Voltage Industrial Synchronous Generators (Part 1)
(2-part Tutorial, Morning and Afternoon Session)

Abstract:  This full day tutorial will build the background you need to understand generation protection, even if you have a limited knowledge of protective relaying. This tutorial was developed by a working group of the IEEE Power System Relay Committee to provide engineers and technicians with a basic understanding of generator protection. The tutorial will highlight the protection of MV generators at industrial facilities. Generators, whether large or small need to be protected not only from internal short circuits, but from abnormal operation conditions, such as overexcitation, overvoltage, loss-of-field, unbalanced currents, reverse power, and abnormal frequency. When subjected to these conditions, damage or complete failure can occur within seconds, requiring automated detection and tripping. This tutorial addresses the methods, practices and industry standards used to provide the electrical protection of generators. This includes a discussion of insurance implications on generator protection and the application of new digital relay technology.   

Course Outline

·         Introduction-basic concepts, industry standards and generator grounding, hybrid grounding

·         Generator stator phase fault protection

·         Field ground protection

·         Stator ground fault protection—Hybrid generator grounding protection

·            Abnormal frequency protection

·         Overexcitation/overvoltage protection

·         VT signal loss protection

·         Loss-of-field protection

·         Out-of-step protection

·         Negative sequence (current unbalance) protection

·         System backup

·         Off-line generator inadvertent energizing

·         Generator breaker failure

·         Generator tripping/shutdown options

·         Application of digital generator protection

Handout Materials: A new 100+ page IEEE document will be provided as a written text for the tutorial. Additionally, hard copy of presentation slides will be provided.

 Instructor:          Chuck Mozina                                   Consultant Beckwith Electric Co.

Design of Low Voltage Distribution Systems Incorporating
Coordination and Arc-Flash Hazard Mitigation

Abstact: This 4-hour tutorial presents a design philosophy that includes protective device coordination and arc-flash mitigation in the design process.  The course is presented through a sample design for a small industrial facility.  It is done within the guidelines of the NEC, NFPA-70E, and IEEE 399.  The “basic” design is done “by hand”, and then entered into one of the popular computer analysis packages for trade-off and completion.

Instructor:          Frederick C. Brockhurst                    Brockhurst Engineering, Inc.

Relay Performance During Saturated Current Transformer Conditions

Abstract: In medium-voltage industrial power systems, protective relays are applied with the expectation that the relays will respond quickly within their zone of protection and that they will operate with a predictable delay to provide coordinated protection for faults in adjacent protection zones. Due to current transformer (CT) saturation, relay overcurrent elements may not operate as fast as expected, jeopardizing fast fault clearing and coordination with relays in other protection zones. 

This tutorial introduces the CT equivalent circuit and the use of the volt-time area concept to explain CT performance. We review system conditions that affect the amount of CT saturation and introduce the existing standard accuracy requirements for CTs used in metal-clad switchgear. We then show how CTs meeting the standard may saturate for fault current values commonly available in industrial switchgear applications.

The tutorial describes the impact of CT saturation on electromechanical relays. We then concentrate on the operation of analog-to-digital converters and the digital filtering used in microprocessor relays. We use simulations to show how the combination of CT saturation and analog-to-digital conversion severely reduces the signal available to the relay. We demonstrate how instantaneous elements implemented within these relays perform when CTs are saturated and discuss how digital filters that detect peak values can be used to effectively implement instantaneous elements.  

Finally, we use actual relay event reports to demonstrate the impact of CT saturation on other protection elements, including residual ground devices and differential relays. This review emphasizes the need to carefully consider application philosophies, CT selection, relay capabilities, and settings. We suggest changes for recognized problems in order to improve the security and dependability of the protective relay scheme.

Instructor :          Larry S. Wright, PE                          Schweitzer Engineering Laboratories, Inc.

The Protection of Medium Voltage Industrial Synchronous Generators (Part 2)
(2-part Tutorial, Morning and Afternoon Session)

Abstract:  This full day tutorial will build the background you need to understand generation protection, even if you have a limited knowledge of protective relaying. This tutorial was developed by a working group of the IEEE Power System Relay Committee to provide engineers and technicians with a basic understanding of generator protection. The tutorial will highlight the protection of MV generators at industrial facilities. Generators, whether large or small need to be protected not only from internal short circuits, but from abnormal operation conditions, such as overexcitation, overvoltage, loss-of-field, unbalanced currents, reverse power, and abnormal frequency. When subjected to these conditions, damage or complete failure can occur within seconds, requiring automated detection and tripping. This tutorial addresses the methods, practices and industry standards used to provide the electrical protection of generators. This includes a discussion of insurance implications on generator protection and the application of new digital relay technology.   

Course Outline

·         Introduction-basic concepts, industry standards and generator grounding, hybrid grounding

·         Generator stator phase fault protection

·         Field ground protection

·         Stator ground fault protection—Hybrid generator grounding protection

·         Abnormal frequency protection

·         Overexcitation/overvoltage protection

·         VT signal loss protection

·         Loss-of-field protection

·         Out-of-step protection

·         Negative sequence (current unbalance) protection

·         System backup

·         Off-line generator inadvertent energizing

·         Generator breaker failure

·         Generator tripping/shutdown options

·         Application of digital generator protection 

Handout Materials: A new 100+ page IEEE document will be provided as a written text for the tutorial. Additionally, hard copy of presentation slides will be provided. 

Instructor:          Chuck Mozina                                   Consultant Beckwith Electric Co.

Changing the Safety Culture:
Going Beyond OSHA and 70E Minimum Requirements

Abstract: OSHA and NFPA 70E provide the baseline minimum requirements to protect personnel from electrical hazards. To enhance personnel safety sometimes requires going beyond these minimum requirements. It requires a change in the safety culture of the company and management. It also requires changing the mindset of people to implement the intent of these requirements and not simply follow the text.  It also requires a culture change to constantly search for improvements and enhancements for personnel safety.

This tutorial will compare the requirements contained in OSHA and 70E and provide time tested techniques and recommendations to enhance personnel safety.

 Authors are members of the NFPA 70E technical committee and are long time practitioners of electrical safety.

Instructors:        Daleep Mohla, IEEE Fellow, P.E      DCM Electrical Consulting Services, Inc.

                            Ray Crow                                              DRC Consulting

                            James White                                        Shermco Corporation