IEEE C37.90.1-2012
IEEE Standard for Surge Withstand Capability (SWC) Tests for Relays and Relay Systems Associated with Electric Power Apparatus - Redline
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- Language: English
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About This Item
IEEE C37.90.1-2012 is a technical standard for surge withstand capability testing of relays and relay systems used with electric power apparatus. It addresses how protective and control equipment should be evaluated for temporary overvoltage and surge-related stresses that can affect operation in power, energy, and industrial applications. For engineers, specifiers, and procurement teams, this standard helps define a consistent basis for testing and comparing device robustness in demanding electrical environments.
Overview of IEEE C37.90.1-2012
This standard focuses on SWC test requirements for relays and relay systems associated with electric power apparatus, helping verify that equipment can withstand electrical surge conditions without unintended performance degradation. IEEE C37.90.1-2012 is commonly used when qualifying protection, control, and monitoring devices where dependable operation is important to system integrity. As a redline document, it is especially useful for identifying changes in requirements and understanding how the technical provisions have been revised.
Typical use cases
IEEE C37.90.1-2012 is typically referenced during the design, qualification, and review of protective relays, control relays, and relay-based systems in substations, switchgear, and other electric power apparatus installations. It may also support laboratory testing, product development, and acceptance planning for devices used in grid infrastructure and industrial power systems. In practice, it helps technical teams confirm that relays and related systems can tolerate surge conditions expected in service.
Why it matters
Surge withstand performance can have a direct effect on reliability, operational continuity, and equipment protection. IEEE C37.90.1-2012 matters because it gives a focused testing framework for verifying that relay systems meet expected resilience levels before deployment or procurement. Using a clear standard can reduce ambiguity in specifications, improve consistency across suppliers, and support better risk management when equipment is installed in electrically harsh environments. It also helps align engineering decisions with recognized testing practice.
- Surge withstand capability testing
- Relays and relay systems
- Electric power apparatus applications
- Protection and control equipment qualification
- Redline comparison of technical requirements
- Publication Date: 2012
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems
- Official IEEE: Doi link
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