IEEE P421.1/D7, Nov 2006
Approved IEEE Draft Standard Definitions for Excitation Systems for Synchronous Machines (Revision of IEEE 412.1-1986)
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- Language: English
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About This Item
IEEE P421.1/D7, Nov 2006 is an approved draft standard that defines terminology for excitation systems used with synchronous machines. In the power, energy, and industry applications context, it helps engineers and specifiers use the same technical language when discussing field control, performance, and related equipment characteristics. IEEE P421.1/D7, Nov 2006 is especially useful where consistent definitions support design review, documentation, and technical comparison across excitation system projects.
Overview of IEEE P421.1/D7, Nov 2006
This draft standard focuses on approved definitions for excitation systems for synchronous machines, with the revision note indicating it updates IEEE 412.1-1986. Its purpose is to clarify key terms used in engineering documents, equipment specifications, and technical discussions involving generator excitation and synchronous machine control. By standardizing terminology, IEEE P421.1/D7, Nov 2006 supports clearer communication between manufacturers, utilities, consultants, and plant engineering teams working with power system equipment.
Typical use cases
IEEE P421.1/D7, Nov 2006 may be referenced when preparing specifications for generator excitation packages, reviewing control-system documentation, or comparing supplier terminology for synchronous machine applications. It is also useful during design coordination for utility and industrial power systems, where excitation-related terms can affect testing, commissioning, and maintenance planning. In procurement and engineering workflows, the standard can help align expectations for definitions used in manuals, drawings, and compliance records.
Why it matters
Clear definitions reduce ambiguity in a technical area where small wording differences can affect design decisions, acceptance testing, and long-term support. IEEE P421.1/D7, Nov 2006 helps improve consistency in contracts, datasheets, and performance discussions for excitation systems, which can lower the risk of misunderstandings between stakeholders. For organizations managing synchronous machine projects, that consistency supports more reliable procurement, better documentation control, and stronger technical review.
- Approved draft definitions for excitation systems
- Revision of IEEE 412.1-1986
- Relevant to synchronous machine applications
- Useful for specification and documentation consistency
- Applies to power and industry engineering workflows
- Publication Date: 2007
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications
- Official IEEE: Doi link
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