Practical Power System Protection Training for Engineers and Technicians

THE TRAINING WORKSHOP

This training workshop has been designed to give plant operators, electricians, field technicians and engineers a better appreciation of the role played by power system protection systems. An understanding of power systems along with correct management will increase your plant efficiency and performance as well as increasing safety for all concerned.

The training workshop is designed to provide excellent understanding on both a theoretical and practical level. Starting at a basic level and then moving onto more detailed applications, it features an introduction covering the need for protection, fault types and their effects, simple calculations of short circuit currents and system earthing. This workshop includes some practical work, simple fault calculations, relay settings and the checking of a current transformer magnetisation curve.

WHAT IS INCLUDED?

  • Receive a certificate of attendance in support of your continuing professional commitment
  • All workshops include the associated hardcopy technical manual
  • Printed workshop handouts
  • Lunch and refreshments
  • Interact and network with workshop attendees and experienced instructors
  • Practical, industry driven content to assist you in your continuing professional development (CPD)
  • Attendees automatically become IDC subscribers and receive exclusive deals and technical content every month

WHO SHOULD ATTEND?

  • Design engineers
  • Electrical engineers
  • Electrical technicians
  • Electricians
  • Field technicians
  • Instrumentation and design engineers
  • Plant operators
  • Project engineers

CONTENT SUMMARY

NEED FOR PROTECTION

  • Selectivity, stability, sensitivity, speed
  • Reliability, dependability, security

FAULT TYPES AND THEIR EFFECTS

  • Active, incipient, passive, transient, asymmetrical etc
  • Phase and earth faults

SIMPLE CALCULATION OF SHORT CIRCUIT CURRENTS

  • Revision of simple formulae
  • Calculation of short circuit MVA and fault currents
  • Worked examples

SYSTEM EARTHING

  • Solid, impedance, touch potentials etc
  • Effect of electric shock on human beings
  • Earth leakage protection

PROTECTION SYSTEM COMPONENTS INCLUDING FUSES

  • History, construction, characteristics
  • Energy, let-through, application

INSTRUMENT TRANSFORMERS

  • Current transformers: construction, performance, specification, magnetisation, curves etc
  • Voltage transformers: types, accuracy, connections

CIRCUIT BREAKERS

  • Purpose and duty, clearance times, types etc

TRIPPING BATTERIES

  • Battery types, chargers, maintenance, D.C. circuitry

RELAYS

  • Inverse, Definite Minimum Time (IDMT) relay – construction principles and setting
  • Calculation of settings – practical examples
  • New era – modern numerical relays and future trends

PRACTICAL DEMONSTRATION SESSION

  • Including simple fault calculations, relay settings and checking a current transformer, magnetising curve etc

APPLICATIONS CO-ORDINATED BY TIME GRADING

  • Problems in applying IDMT relays

UNDERGROUND MINE DISTRIBUTION PROTECTION

  • Earth leakage protection, pilot wire monitor, earth fault lockout, neutral earth resistor monitor

PRINCIPLES OF UNIT PROTECTION

  • Differential protection – basic principles

FEEDER PROTECTION

  • Cables
  • Pilot wire differential
  • Overhead lines
  • Distance protection (basic principles, characteristics, various schemes)

TRANSFORMER PROTECTION

  • Phase shift, magnetising in-rush, inter-turn, core and tank faults
  • Differential and restricted earth fault schemes
  • Buchholz relay, oil and winding temperature
  • Oil – testing and gas analysis

SWITCHGEAR (BUSBAR) PROTECTION

  • Requirements, zones, types
  • Frame leakage, high, medium and low impedance schemes, reverse blocking

MOTOR PROTECTION

  • Thermal overload, time constants, early relays
  • Starting and stalling conditions
  • Unbalanced supply voltages, negative sequence currents, de-rating factors
  • Phase-phase faults
  • Earth faults – core balance, residual stabilising resistors

GENERATOR PROTECTION

  • Stator and rotor faults
  • Overload and over-voltage
  • Reverse power/unbalanced loading
  • Loss of excitation and synchronism
  • Typical protection scheme for industrial generators

OVERHEAD LINE PROTECTION

  • Basic principles of the distance relay
  • Tripping characteristics
  • Application onto power lines
  • Effect of load current and arc resistance
  • Various schemes using power line carrier

MANAGEMENT OF PROTECTION

  • Routine testing, annual testing, investigation and performance assessment, up-grading
  • Organisation, training, records, access planning

Book Now

 

This course is available fully online through IDC Video: On-Demand video courses.

CLICK HERE for more information.