IEEE 387-2017

IEEE 387-2017 is the standard for criteria for diesel generator units applied as standby power supplies for nuclear power generating stations. It addresses the technical expectations for designing, selecting, and evaluating diesel generator units that may be relied on when normal power is unavailable. This makes it an important reference for nuclear facility electrical systems, where standby power must support safety-related and mission-critical functions with controlled performance and dependable operation.

About IEEE 387-2017

This standard defines criteria for diesel generator units used as standby power sources in nuclear power generating stations, with attention to power system reliability, equipment behavior, and application context. IEEE 387-2017 is relevant to components, circuits, devices, and systems that must work together under demanding operating conditions. It is typically used as a technical basis for engineering review, specification development, and conformity assessment when standby generation is part of a nuclear plant’s electrical protection and backup power arrangement.

Where is IEEE 387-2017 used?

IEEE 387-2017 is used in nuclear power generating stations wherever diesel generator units are installed to provide standby electrical supply for essential loads. It is especially relevant to plant electrical engineering, safety system support, and standby power architecture. The standard may also guide procurement and verification of generator sets, control equipment, and related circuits used to maintain power continuity during loss of normal supply. In practice, it supports structured decision-making for nuclear facility power equipment.

Importance in practice

In practice, IEEE 387-2017 helps reduce uncertainty when specifying or reviewing standby diesel generation for nuclear applications. It supports consistent design and testing expectations, which can improve compliance, performance confidence, and risk control. For operators and engineers, the standard can also aid documentation, acceptance review, and maintenance planning by providing a recognized technical reference. IEEE 387-2017 is valuable wherever dependable backup power is part of plant safety and operational readiness.

• Standby diesel generator criteria
• Nuclear power station application
• Backup power system engineering
• Equipment selection and review
• Compliance and verification support