IEEE P421.6/D2, Apr 2015
IEEE Recommended Practice for the Specification and Design of Field Discharge Equipment for Synchronous Machines
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- Language: English
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About This Item
IEEE P421.6/D2, Apr 2015 is a draft IEEE recommended practice focused on the specification and design of field discharge equipment for synchronous machines. It addresses how discharge equipment should be selected and engineered to support controlled field energy dissipation in power and energy applications. For utilities, industrial plants, and machine designers, this technical document can help improve design consistency, reduce operational risk, and support clearer procurement and engineering decisions.
What is IEEE P421.6/D2, Apr 2015?
IEEE P421.6/D2, Apr 2015 provides guidance for the specification and design of field discharge equipment used with synchronous machines. In practical terms, it is concerned with how the field circuit is managed when a machine is taken out of service or when the excitation system must be disconnected safely. The standard is relevant to electrical engineering work involving machine protection, discharge paths, ratings, and design coordination, especially where consistent technical requirements are needed for reliable operation.
Where is IEEE P421.6/D2, Apr 2015 used?
This recommended practice is commonly used in the design and procurement of synchronous machine systems, including generators and large rotating equipment in power generation and heavy industrial settings. It is relevant where field winding discharge behavior must be defined for excitation systems, protection schemes, and machine shutdown procedures. Engineers, specification writers, and equipment suppliers may use IEEE P421.6/D2, Apr 2015 when developing technical requirements for field discharge equipment in new installations or retrofit projects.
Why is IEEE P421.6/D2, Apr 2015 important?
IEEE P421.6/D2, Apr 2015 matters because field discharge equipment can affect machine safety, insulation stress, and the overall reliability of synchronous machine operation. Clear technical guidance helps reduce ambiguity during design review, testing, and equipment selection. It also supports more consistent compliance expectations between owners, integrators, and manufacturers. In projects involving high-energy electrical equipment, having a defined recommended practice can help lower the chance of misapplication and improve long-term performance.
- Field discharge equipment for synchronous machines
- Specification and design guidance
- Excitation system and shutdown coordination
- Machine protection and discharge behavior
- English-language IEEE draft document
- Publication Date: 2015
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems; Geoscience
- Official IEEE: Doi link
- New Version Available: P421.6 (2017)
- Previous Version: P421.6 (2016)
- Previous Version: P421.6 (2016)
- This Version: P421.6 (2015)
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