IEEE C37.013-1989

C37.013-1989 is a technical standard for voltage generator circuit breakers rated on a symmetrical current basis, written for power, energy, and industry applications. It addresses how these breakers are rated and evaluated so their electrical performance can be understood consistently in engineering and procurement work. For equipment selection, system coordination, and specification review, C37.013-1989 helps define the expected rating basis for generator-side switching devices and supports clearer comparison of products.

What is C37.013-1989?

C37.013-1989 defines a specialized rating framework for voltage generator circuit breakers, focusing on symmetrical current basis considerations. In practical terms, it provides a common technical reference for how these breakers are described, rated, and assessed in relation to generator-connected duty. This makes the standard useful when comparing equipment, reviewing design documents, or checking whether a breaker’s declared performance aligns with the intended electrical application and operating conditions.

Where is C37.013-1989 used?

This standard is typically relevant in power-generation and industrial electrical systems where generator circuit breakers are part of the switching arrangement. It may be used during equipment specification, design review, acceptance testing, and procurement for generator output circuits and related power distribution interfaces. Engineers and buyers working with medium- to high-power electrical installations can use C37.013-1989 to align breaker ratings with system requirements and operational duty.

Why is C37.013-1989 important?

C37.013-1989 matters because breaker ratings affect safety, reliability, and coordination in generator-connected power systems. A clear symmetrical current basis helps reduce ambiguity when selecting or comparing equipment and supports more consistent documentation across projects. For utilities, plants, and industrial facilities, the standard can also help limit misapplication risk, improve specification accuracy, and provide a more dependable basis for compliance and engineering review.

• Generator circuit breaker rating basis
• Symmetrical current considerations
• Power and industrial applications
• Specification and procurement reference
• Design and performance comparison