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Power System Protection and Relay Coordination

Power System Protection and Relay Coordination

Yogyakarta |  05-08 March 2012 | IDR 7.000,000.00 per participant
Yogyakarta | 18-21 June 2012 | IDR 7.000,000.00 per participant
Yogyakarta | 19-22 November 2012 | IDR 7.000,000.00 per participant


The training in the principles and methods used to perform protective device coordination studies for low voltage through distribution level power systems with or without software. This is one of the few courses that is not merely a software training course. Specifically designed for industrial and government engineers that want knowledge of the principles of protective device coordination but also practical knowledge of how to achieve reasonable and economical device coordination.

The only course which can cover both national codes and standards and government criteria that affect coordination philosophies. Covers concepts, procedures, and guidance not covered in other courses in the industry. Examples will include critical systems fed from emergency generators and uninterruptible power supplies (UPS).


Utility engineers, consultants (especially those involved with IPP/DG design), equipment/control engineers, generator packager and manufacturer engineers as well as others who specify protective relays and develop settings for these devices.


1.         System Analysis

  •  Fault Current and Load Flow Calculations Using Computer Software
  • Remote Effects Of Faults

2.         Protective Device Coordination Principles

  • Graphical Tools and Time/Current Curve Interpretation
  • Load Flow and Unbalanced Fault Effects
  • Cold Load Pickup
  • Grounding System Constraints
  • Coordination Economics
  • Asymmetrical Current Impacts
  • Coordination Time Intervals of Relays
  • Transformer Effects on Coordination

3.         Equipment and Device Characteristics

  • Fuses –including current limiting fuses
  • Molded case and Insulated Case Breakers
  • Solid-State Trip Low Voltage Breakers
  • Equipment Damage Characteristics
  • Proper Protective Device Selection
  •  Circuit Breaker Ratings and Selection
  • Low Voltage Cable Protection
  • Shielded Cable Protection
  • Overhead Conductor Protection
  • Motor Protection
  • Generator Protection
  • Transformer Protection
  •  Panelboard and Switchgear Protection
  • Inverse Time/Overcurrent Protective Relays and
  •   Instantaneous Trip Devices
  • Series Rated Breakers
  •  Differential and Voltage Constrained Relays
  •   Reclosing relays, reclosers, and sectionalizers
  •  Current transformer characteristics and selection

4.         Ground Fault Protection

  • Arcing Ground Fault Magnitudes
  • Ground Fault Protection Schemes
  • Interaction Of Ground Fault Relays And Phase
  •  Overcurrent Devices

5.         Emergency Power System Design

  • Weak Source Systems
  • Generator Fault Characteristics
  •  Uninterruptible Power Supply Fault Characteristics
  • Transfer and Static Switch Limitations
  •  Improving Emergency Circuit Design

6.   Common Coordination Problems, Errors, And Misconceptions

7.  Preliminary System One-line Development for a Coordinated System

  • Lessons Learned and “ Rules of Thumb” to spot uncoordinated systems and methods to develop a coordinated system design

8.         Criteria Impacting Coordination

  • NESC, IEEE Std C2,
  • NFPA 70-National Electrical Code
  • Arc Flash Protection of Employees

9.         Switchgear And Relay Commissioning Including Optional Hands-On Student Calibration of a Relay


Teguh Santoso, Ir
Teguh Santoso experienced more than 26 years in Electrical.


  • Presentation
  • Discuss
  • Case Study
  • Evaluation
  • Simulation


  • Yogyakarta,
  • 05-08 March 2012
  • 18-21 June 2012
  • 19-22 November 2012
  • 4 days – 08 am – 04 pm


IDR 7.000,000.00 per participant non residential


  • Module / Handout
  • Certificate
  • Souvenir
  • Training Kit



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