12
DMC3S - Manual - 08 - 2021
3.6
NOMINAL VALUES
Clamp voltage value UE or V2
U
E
or
V
2
Phase correction V1-V2
0...360
°
Voltage value for synchrocheck V1
U
L1
/
U
L2
/
U
L3
Nominal relay frequency (
f
n
)
50, 60 Hz
Nominal phase current
I
L1
,
I
L2
,
I
L3
of relay (
I
n
)
1 A or 5 A
Nominal phase current
I
SQL
-
I
Ne
,
I
L3
of relay -
I
n
1 A or 5 A
Primary CT nominal current of phase -
I
np
1 A...10 kA
1...499 A (step 1 A)
500...4990 A (step 10 A)
5000...10000 A (step 100 A)
Nominal residual current of relay -
I
En
1 A or 5 A
Primary CT residual nominal current -
I
np
1 A...10 kA
1...499 A (step 1 A)
500...4990 A (step 10 A)
5000...10000 A (step 100 A)
Nominal phase-to-phase voltage of relay -
U
n
50...130 V (step 1 V)
Nominal phase-to-phase voltage of relay V2 -
U
n2
50...130 V (step 1 V)
Nominal phase voltage of relay -
E
n
E
n
=
U
n
/ √3
Nominal residual voltage of relay with direct measurement -
U
En
50...130 V (step 1 V)
Nominal residual voltage of relay with calculated residual voltage -
U
ECN
U
ECN
=
U
n
∙ √3 =
E
n
∙ 3
Nominal active power of relay -
P
n
= √3 ∙
U
n
∙
I
n
= 3 ∙
E
n
∙
I
n
-
Nominal reactive power of relay -
Q
n
= √3 ∙
U
n
∙
I
n
= 3 ∙
E
n
∙
I
n
-
Nominal apparent power of relay -
S
n
= √3 ∙
U
n
∙
I
n
= 3 ∙
E
n
∙
I
n
-
Nominal primary phase-to-phase VT line voltage -
U
np
50 V...500 kV
50...499 V (step 1 V)
500...4990 V (step 10 V)
5000...49900 V (step 100 V)
50000...500000 V (step 1000 V)
Nominal primary phase-to-phase VT residual voltage ∙√3 -
U
Enp
50 V...500 kV
50...499 V (step 1 V)
500...4990 V (step 10 V)
5000...49900 V (step 100 V)
50000...500000 V (step 1000 V)
Nominal primary phase-to-phase V2 side VT voltage -
U
n2p
50 V...500 kV
50...499 V (step 1 V)
500...4990 V (step 10 V)
5000...49900 V (step 100 V)
50000...500000 V (step 1000 V)
3.7 PROTECTION FUNCTIONS
—
Direct undervoltage - 27CC (80.s)
Threshold U
CC
<
Definite time
First definite time threshold (
U
cc
<
def
)
0.60...1.00
U
ncc
(step 0.01
U
ncc
)
Operating time (
t
Ucc
<
def
)
0.00...10.00 s (step 0.01 s)
—
Maximum directional active power 32P
Threshold
P1>
Parameters
Tripping direction (
P
1
>
DIR
)
P Forward/P Reverse/P Forward/Reverse
Reset delay (
t
P1
>
RES
)
0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...100.0 s (step 0.1 s)
Definite time
First definite time threshold (
P1>
def
)
0.80...1.20
P
n
(step 0.01
P
n
)
Operating time (
t
P1
>
def
)
0.05...1000
s
0.05...99.9 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...1000 s (step 1 s)
Back-up time (
t
rP1
>
def
)
0.05...0.50 s (step 0.01 s)
Threshold
P2>
Parameters
Tripping direction (
P
2
>
DIR
)
P Forward/P Reverse/P Forward/Reverse
Reset delay (
t
P2
>
RES
)
0.00...100.0 s
0.00...9.99 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
Definite time
Second definite time threshold (
P2>
def
)
0.80...1.20
P
n
(step 0.01
P
n
)
Operating time (
t
P2
>>
def
) 0.05...1000
s
0.05...99.9 s (step 0.01 s)
10.0...99.9 s (step 0.1 s)
100...1000 s (step 1 s)
Back-up time (
t
rP2
>
def
)
0.05...0.50 s (step 0.01 s)