Thytronic SME2-IS User Manual

51
SME2-IS - Manual - 06- 2021
FUNCTIONAL CHARACTERISTICS
Functional diagram of the synchronisation check function (25) for asynchronous grids
∆ 
A
- ≤ ∆  ≤ ∆ 
A
+
Rof>SYNC
STOP-SYNC
“1” with unstable frequency measurement (block)
value 
≥
&
&
&
value f
∆ f
-14
≤ df
14-SYNC
df
12-SYNC
df
21-SYNC
∆ f
-41
≤ df
41-SYNC
(f1≥f4)
(f4≥f1)
Reclosing
Reclosing sequence started by internal command (MMI or interface)
“1” with synchrocheck stop active (internal command)
52a
Binary input INx
“1” with breaker closed
t
STAB
0T
t
STAB
0T
t
STAB
0T
timeout-
SYNC
timeout-
SYNC
0T
RESET
t
STAB
0T
t
STAB
0T
“1” with V
1
in the range V
min
-
SYNC
toV
MAX
-
SYNC
“1” with f
1
in the range (f
n
- f
range
) and ( f
n
+ f
range
)
“1” with ∆f less than the threshold
“1” with
∆  less than the threshold
“1” with f
2
in the range (f
n
- f
range
) and ( f
n
+ f
range
)
“1” with V
2
in the range V
min
-
SYNC
to V
MAX
-
SYNC
(V1≥V2)
V
1
V
2
value ∆V
∆ V ≤ dV
12-SYNC
dV
12-SYNC
dV
21-SYNC
(V2≥V1)
∆ V ≤ dV
21-SYNC
t
STAB
0T
f
1
= f
n
± f
range
f
range
f
2
= f
n
± f
range
V
min
-
SYNC
V
min
-
SYNC
≤ V
1
< V
max
-
SYNC
V
max
-
SYNC
V
min
-
SYNC
V
min
-
SYNC
≤ V
2
< V
max
-
SYNC
V
max
-
SYNC

Thytronic SME2-IS Specifications

General

Brand	Thytronic
Model	SME2-IS
Category	Security Sensors
Language	English