Table 291:
The calculation of Load shed blocking signal for Bus Coupler configuration
CB configuration
setting
Conditions
Load shed blocking signal
Bus Coupler
A = input SND_IED_QVAL is Bad (Within measurement
cycle)
0
1
0
T
2
T
3
T
4
T
A
Load shed blocking
1
Bus Coupler
A = input SND_IED_QVAL is Bad (At measurement
cycle)
At the instance of
measurement cycle
0
1
0
T
2
T
3
T
4
T
A
Load shed blocking
1
Bus Coupler
A = input SND_IED_TEST is TRUE or SND_CB_POS is
Invalid
0
1
0
T
2
T
3
T
4
T
A
Load shed blocking
1
Bus Coupler
A = input SND_CB_POS is Intermediate
0
1
0
A
Load shed blocking
1
t (time)
time
Interm
CB
Snd
Δt'
time
Interm
CB
Snd
Δt
T, 2T and 3T are the measurement cycles.
Section 7
1MRS757256 F
Power management functions
252
PML630/Compact Load-Shedding Solution
Technical Manual
Summary of Contents for Relion 630 Series
Page 1: ... RELION 630 SERIES Power Management PML630 Compact Load Shedding Solution Technical Manual ...
Page 2: ......
Page 26: ...20 ...
Page 38: ...32 ...
Page 202: ...196 ...
Page 322: ...316 ...
Page 360: ...354 ...
Page 374: ...368 ...
Page 376: ...370 ...