IEEE PC37.230_D4.01, Feb 2006 is an inactive IEEE draft guide focused on protective relay applications to distribution lines. It addresses how relays may be applied in power distribution systems to support dependable fault detection, coordination, and protection performance. For engineers and utility planners, this technical document is useful because it helps frame consistent protection practices for line sections, feeder arrangements, and related distribution equipment where relay selection and settings can affect system reliability.

What is IEEE PC37.230_D4.01, Feb 2006?

IEEE PC37.230_D4.01, Feb 2006 is a draft guide intended to outline protective relay application considerations for distribution lines. In practical terms, it discusses the engineering context behind choosing and applying relays so that line protection can operate as intended under fault conditions. Because it is an unapproved draft, it is best viewed as a technical reference rather than a finalized requirements document. Its value lies in clarifying typical relay application issues, coordination concerns, and protection objectives for distribution network designs.

Where is IEEE PC37.230_D4.01, Feb 2006 used?

This guide is most relevant in utility distribution environments where overhead or underground lines require protective relaying as part of feeder protection schemes. It may be used during relay application studies, substation protection planning, coordination reviews, and equipment specification for line protection panels or relays. The subject matter is especially useful for engineers working on distribution feeders, sectionalizing points, and related control and protection workflows where dependable operation and selectivity are important.

Why is IEEE PC37.230_D4.01, Feb 2006 important?

Clear guidance on protective relay applications helps reduce miscoordination, unnecessary outages, and protection gaps on distribution lines. IEEE PC37.230_D4.01, Feb 2006 can support more consistent design decisions by helping teams evaluate relay behavior, application limits, and coordination objectives in a structured way. That matters for compliance-minded engineering, procurement of protection equipment, and testing or commissioning activities where practical relay performance must align with system protection needs and reliability expectations.

• Protective relay application guidance
• Distribution line protection focus
• Coordination and selectivity considerations
• Feeder and substation protection context
• Draft, inactive IEEE technical document