Numerical Relays Technology and Applications
| 29 June – 03 July 2026, Dubai | 21 – 25 Sep. 2026, Abu Dhabi |
COURSE OVERVIEW:
The transition from static and electromechanical protection to numerical technology has revolutionized the precision and diagnostic capability of modern power systems. This course provides a comprehensive technical exploration of numerical relay architecture, focusing on the digital processing of analog signals and the execution of complex protection algorithms. Participants will explore the mechanics of "Mathematical Modeling" within the relay, learning how physical electrical quantities are converted into actionable binary logic.
The scope of this training addresses the multi-functional nature of modern relays, including protection, metering, control, and disturbance recording within a single hardware platform. It covers the technical nuances of digital filtering, sampling rates, and the implementation of logic gates to create custom protection schemes. The curriculum provides a detailed focus on the integration of these devices into automated substations, emphasizing the shift from copper-based signaling to high-speed data communications.
Coverage includes the practical application of software tools for relay configuration, setting calculations, and the analysis of waveform data. Attendees will learn to interpret COMTRADE files, utilize "Logic Analyzers," and troubleshoot hardware-software interfaces. By combining microprocessor theory with practical substation application, the course equips professionals with the expertise required to manage the high-performance protection assets that safeguard modern industrial and utility networks.
COURSE OBJECTIVES:
After completion of this course, the participants will be able to:
- Define the hardware architecture of a Microprocessor-Based (Numerical) Relay.
- Explain the process of Analog-to-Digital (A/D) conversion and signal sampling.
- Configure multi-function protection elements (Overcurrent, Voltage, Frequency).
- Utilize "Programmable Scheme Logic" (PSL) to create custom protection interlocks.
- Implement "Digital Filtering" techniques to remove DC offsets and harmonics.
- Navigate and utilize relay-specific manufacturer software for setting uploads.
- Interpret "Disturbance Records" and "Event Logs" for fault reconstruction.
- Map physical "Binary Inputs" and "Output Contacts" to internal logic.
- Utilize "Virtual Inputs" (GOOSE) for peer-to-peer substation communication.
- Perform "Secondary Injection" testing on digital relay platforms.
- Manage "Firmware Upgrades" and relay "Password Security" protocols.
- Troubleshoot "Hardware Failures" and "Self-Diagnostic" error codes.
TARGET AUDIENCE:
This course is intended for Protection Engineers, Control Systems Technicians, Substation Operators, and Maintenance Engineers.
TRAINING COURSE METHODOLOGY:
A highly interactive combination of lectures, discussion sessions, and case studies will be employed to maximize the transfer of information, knowledge, and experience. The course will be intensive, practical, and highly interactive. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. The attendants will also be encouraged to raise more of their questions and to share in developing the right answers using their analysis and experience. There will also be some indoor experiential activities to enhance the learning experience. Course material will be provided in PowerPoint, with necessary animations, learning videos, and general discussions.
The course participants shall be evaluated before, during, and at the end of the course.
COURSE CERTIFICATE:
National Consultant Centre for Training LLC (NCC) will issue an Attendance Certificate to all participants completing a minimum of 80% of the total attendance time requirement.

