Transient Stability

The ability to maintain synchronism.

Definition by PJM

Source: ¹ (p64, Revision 69)

The ability of a generating unit or a group of generating units to maintain synchronism following a relatively severe and sudden system disturbance. The first few cycles are the most critical time period.

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Last modified: 2025-12-02

Related: stability · transient-stability-assessment · dynamic-stability

← Torsional Resonance · Transient Stability Assessment →

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1. PJM (2025). Manuals M-3: Transmission Operations (Revision 69). https://www.pjm.com/-/media/DotCom/documents/manuals/archive/m03/m03v69-transmission-operations-11-20-2025.pdf ↩