ABB RELION 670 Series Technical Manual page 770
Generator protection
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Also See for RELION 670 Series:
- Technical reference manual (1232 pages) ,
- Applications manual (944 pages) ,
- Manual (366 pages)
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Section 14
Control
14.1.8
Technical data
Table 447: SESRSYN (25) technical data
Function
Phase shift, j
Voltage high limit for synchronism check
Reset ratio, synchronism check
Frequency difference limit between bus and
line for synchronism check
Phase angle difference limit between bus and
line for synchronism check
Voltage difference limit between bus and line
for synchronism check
Time delay output for synchronism check
Frequency difference minimum limit for
synchronizing
Frequency difference maximum limit for
synchronizing
Maximum allowed frequency rate of change
Breaker closing pulse duration
tMaxSynch, which resets synchronizing
function if no close has been made before set
time
Minimum time to accept synchronizing
conditions
Voltage high limit for energizing check
Reset ratio, voltage high limit
Voltage low limit for energizing check
Reset ratio, voltage low limit
Maximum voltage for energizing
Time delay for energizing check when voltage
jumps from 0 to 90% of Vrated
Trip time for synchrocheck function when
angle difference between bus and line jumps
from "PhaseDiff" + 2 degrees to "PhaseDiff" - 2
degrees
Trip time for energizing function when voltage
jumps from 0 to 90% of Vrated
764
- j
line
bus
Range or value
(-180 to 180) degrees
> 95%
(0.003-1.000) Hz
(5.0-90.0) degrees
(0.02-0.5) p.u
(0.000-60.000) s
(0.003-0.250) Hz
(0.050-0.500) Hz
(0.000-0.500) Hz/s
(0.050-60.000) s
(0.000-6000.00) s
(0.000-60.000) s
> 95%
< 105%
(0.000-60.000) s
Min. = 15 ms
Max. = 30 ms
Min. = 70 ms
Max. = 90 ms
1MRK 502 066-UUS B
M12359-1 v12
Accuracy
-
±0.5% of V
at V ≤ V
n
n
±0.5% of V at V > V
n
-
±2.5 mHz
±2.0 degrees
±0.5% of V
n
±0.2% or ±35 ms whichever is
greater
±2.5 mHz
±2.5 mHz
±10.0 mHz/s
±0.2% or ±15 ms whichever is
greater
±0.2% or ±35 ms whichever is
greater
±0.2% or ±35 ms whichever is
greater
±0.5% of V
at V ≤ V
n
n
±0.5% of V at V > V
n
-
±0.5% of V
n
-
±0.5% of V
at V ≤ V
n
n
±0.5% of V at V > V
n
±0.2% or ±100 ms whichever is
greater
–
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