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8.15
Accidental energizing protection for synchronous
generator AEGPVOC (50AE)
GUID-B8AED221-36B4-45C3-8FD9-713DAAB4A365 v2
8.15.1
Identification
GUID-E8C9B9EB-A74D-49DE-A656-4B56772017E2 v2
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Accidental energizing protection for
synchronous generator
AEGPVOC
U<I>
50AE
8.15.1.1
Functionality
GUID-02AA771D-2DFA-4BEE-92FD-CBF0E0448FBA v6
Inadvertent or accidental energizing of off-line generators has occurred often enough due to
operating errors, breaker head flashovers, control circuit malfunctions, or a combination of these
causes. Inadvertently energized generator operates as induction motor drawing a large current
from the system. The voltage supervised overcurrent protection is used to detect the
inadvertently energized generator.
Accidental energizing protection for synchronous generator (AEGPVOC, 50AE) takes the maximum
phase current input and maximum phase to phase voltage inputs from the terminal side.
AEGPVOC (50AE) is enabled when the terminal voltage drops below the specified voltage level for
the preset time.
8.15.1.2
Function block
GUID-932D1071-6711-445F-B7DD-1605E20CC019 v3
AEGPVOC (50AE)
I3P*
U3P*
BLOCK
BLKTR
TRIP
START
ARMED
ANSI13000302-1-en.vsd
ANSI13000302 V1 EN-US
Figure 302: AEGPVOC (50AE) Function block
8.15.1.3
Signals
PID-3459-INPUTSIGNALS v6
Table 305: AEGPVOC (50AE) Input signals
Name
Type
Default
Description
I3P
GROUP
SIGNAL
-
Three Phase Current input
V3P
GROUP
SIGNAL
-
Three Phase Voltage input
BLOCK
BOOLEAN
0
Block of function
BLKTR
BOOLEAN
0
Block of trip
Section 8
1MRK 502 066-UUS B
Current protection
568
Technical manual
Summary of Contents for Relion 670 series
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