IEEE PC37.06/D8.3, Jul 2007
IEEE Draft: Standard AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis - Preferred Ratings and Related Required Capabilities for Voltages Above 1000 Volts.
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Language: English
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About This Item
IEEE PC37.06/D8.3, Jul 2007 is an IEEE draft standard for AC high-voltage circuit breakers rated on a symmetrical current basis, focusing on preferred ratings and related required capabilities for voltages above 1000 volts. It helps define how breakers should be rated and evaluated for power-system duty, making the specification more consistent for engineering, procurement, and testing. For equipment used in power, energy, and industrial applications, this draft supports clearer design expectations and more reliable comparison of breaker performance.
Overview of IEEE PC37.06/D8.3, Jul 2007
This technical document addresses the rating framework for AC high-voltage circuit breakers, with emphasis on symmetrical current rating practice and the capabilities those devices are expected to meet at voltages above 1000 volts. IEEE PC37.06/D8.3, Jul 2007 is relevant where breaker selection must align with defined electrical duties, interruption performance, and related withstand requirements. In practice, it supports a common basis for describing preferred ratings and verifying that a breaker is suitable for its intended high-voltage application.
Typical use cases
IEEE PC37.06/D8.3, Jul 2007 is typically used when specifying or reviewing high-voltage AC circuit breakers for substations, switchgear lineups, and other power distribution equipment. It is also useful during equipment comparison, bid evaluation, and engineering review for systems that must interrupt fault currents at voltages above 1000 volts. The document may help align breaker ratings with utility, industrial, and energy-sector requirements where symmetrical current basis ratings are part of the procurement and design process.
Why it matters
This standard matters because breaker ratings directly affect safety, system reliability, and interchangeability in high-voltage power applications. By defining preferred ratings and related required capabilities, IEEE PC37.06/D8.3, Jul 2007 helps reduce ambiguity in design and purchasing decisions. It can also support more consistent test expectations and clearer compliance checks when evaluating whether a circuit breaker meets the intended electrical duty. For asset owners and engineers, that consistency may lower risk and improve long-term operational confidence.
- AC high-voltage circuit breaker ratings
- Symmetrical current basis
- Preferred ratings and required capabilities
- Voltages above 1000 volts
- Power and industrial equipment context
- Publication Date: 2007
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications
- Official IEEE: Doi link
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