IEEE C37.111-2013

IEEE C37.111-2013 is a redline edition of the COMTRADE format standard for power-system transient data exchange, covering how measurements from relays and protection equipment are organized for use by engineers and analysts. It is relevant to power, energy, and industrial applications where consistent recording of disturbance data supports review, troubleshooting, and coordination. As a technical document, IEEE C37.111-2013 helps maintain a common structure for transient records, which can improve comparability and reduce interpretation errors.

IEEE C37.111-2013 overview

This standard defines the common format used to exchange transient data captured from measuring relays and protection equipment in electrical power systems. In practical terms, IEEE C37.111-2013 supports a consistent way to store and share oscillography and disturbance information so different tools and teams can work with the same record structure. The redline version is especially useful when reviewing revisions or comparing changes to the underlying COMTRADE requirements, making it valuable for engineering documentation and technical validation.

Typical use cases

IEEE C37.111-2013 is commonly used when transient records from protective relays, fault recorders, and related monitoring equipment need to be exchanged between utility systems, engineering software, or analysis workflows. It may support post-event disturbance analysis, relay coordination review, and troubleshooting after fault conditions on power networks. The standard is also relevant when teams need a predictable file format for capturing current and voltage waveforms, event timing, and associated metadata in protection and control environments.

Why this standard matters

Using IEEE C37.111-2013 helps organizations manage transient data in a consistent format, which can improve reliability during fault analysis, commissioning, and maintenance activities. A common exchange structure reduces the risk of misread records and supports better comparison across devices and vendors. For procurement and engineering control, it can also clarify expectations for data compatibility, helping limit rework and supporting more efficient testing, validation, and incident investigation in power-system applications.

• COMTRADE transient data exchange
• Measuring relays and protection equipment
• Redline revision format
• Power-system disturbance records
• Engineering and analysis workflows