Underexcitation Protection Uexpdis - ABB RELION 630 Series Applications Manual
Generator protection and control
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Also See for RELION 630 Series:
- Technical manual (380 pages) ,
- Communication protocol manual (304 pages) ,
- Engineering manual (156 pages)
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1MRS757582 C
3.2.6.13
REG630
Application Manual
GUID-2A5A8599-7C41-4BD3-8F3A-4A900D35F57D V1 EN
Figure 14:
Frequency protection
Underexcitation protection UEXPDIS
Underexcitation protection is used for protecting a generator against loss of excitation.
The excitation reduction may result into loss of synchronism, and the generator starts
Section 3
REG630 variants
39
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