IEEE C37.74-2003
Interrupter Switchgear for Alternating Current Systems up to 38 kV
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About This Item
C37.74-2003 is a technical standard for interrupter switchgear used in alternating current systems up to 38 kV, with a focus on power, energy, and industry applications. It helps define how this equipment should be designed and evaluated for medium-voltage service where switching performance, insulation, and operational reliability matter. For engineers, purchasers, and specifiers, C37.74-2003 provides a common reference for comparing equipment and supporting consistent application in AC distribution systems.
About C37.74-2003
This standard addresses interrupter switchgear intended for AC systems within the 38 kV range, where dependable interruption and switching behavior are essential to system control and protection. C37.74-2003 is relevant to technical specification, design coordination, and performance expectations for equipment used in power distribution and related industrial settings. It is typically used when a project needs a clear basis for evaluating switchgear capabilities, ratings, and suitability for medium-voltage applications.
Where is C37.74-2003 used?
C37.74-2003 is commonly applied in medium-voltage AC networks serving utilities, industrial facilities, and energy infrastructure. It is relevant to interrupter switchgear used in distribution substations, feeder switching, and similar system points where controlled interruption and dependable operation are important. In practice, the standard may support equipment selection for installations that require coordination with system voltage, insulation level, and switching duty. It is especially useful where standardized requirements help align procurement and engineering decisions.
Importance in practice
In practice, C37.74-2003 helps reduce uncertainty when specifying and comparing interrupter switchgear for AC systems up to 38 kV. It supports more consistent design and procurement decisions by giving stakeholders a shared technical basis for ratings, performance, and application limits. That can improve safety, compatibility, and reliability while also helping with testing and compliance review. For projects in power and industrial environments, the standard can make equipment selection more structured and less dependent on informal interpretation.
- Interrupter switchgear for AC systems up to 38 kV
- Medium-voltage power and industrial applications
- Switching, interruption, and rating considerations
- Design, procurement, and compliance reference
- Publication Date: 2003
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications
- Official IEEE: Doi link
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