6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 904 -
5.2.1
VCT12B
VCT12B is for a single circuit breaker arrangement (1CB), as shown in Figure 5.2-3. When the
VCT12B is used in 1.5CB arrangement, the user should have the Paralleling connected CTs
(i.e., summation) at VCT12B.
Va
Vb
Vc
VCT12B
Vs
Vs2(or Ve)
Ia
Ib
Ic
Ie
Iem
Va
Vb
Vc
Three-phase voltages
Ia
Ib
Ic
The three-phase currents in the 1CB
arrangement
Residual current
The other residual current in the
parallel lines
Vs
Reference voltage on busbar
Reference voltage on busbar or
residual voltage
Vs2
Figure 5.2-3 Transformer module (VCT12B)
(1)
Note:
The cannel number about the AC analog input is used to represent the
terminal location when the user sets the ratio about the CT or the VT. We
shall discuss later in section
Setting VCT ratio.
(2)
Note:
In 5A rated operation, jumpers are inserted on all CTs, whereas no jumper is
inserted for 1A rated. To change it, see section
Shifting VCT rated current.
(3)
Note:
For the destination of input signals, see Appendix:
Matrix between VCT
terminals and relay applications.
(4)
Note:
Reference voltage (either Vs or Vs2) is used in the Voltage check (VCHK)
function; see Chapter
Relay applications: VCHK.
(5)
Note:
Residual voltage (Ve) can be selected when setting [
APPL-Ves2
] =
Ve
. For
more information, see the succeeding section.
Terminal
Screw
Number
Input
signal
(3)
Type of
input
Jumper
position
(2)
AC analog
input
channel
(1)
1
2
Va
Voltage
NA
Ch1
3
4
Vb
Voltage
NA
Ch2
5
6
Vc
Voltage
NA
Ch3
7
8
Vs
(4)
Voltage
NA
Ch4
9
10 Vs2
(4)
/Ve
(5)
Voltage
NA
Ch5
11
12
Ia
Current
W6
Ch6
13
14
Ib
Current
W7
Ch7
15
16
Ic
Current
W8
Ch8
17
18
Ie
Current
W13
Ch9
19
20
–
–
–
–
21
22
–
–
–
–
23
24
–
–
–
–
25
26
–
–
–
–
27
28
Iem
Current
W12
Ch14
Summary of Contents for GR 200 Series
Page 1047: ...6F2S1915 0 46 GRZ200 Soft 031 032 1026 Figure 8 3 4 Screen shot from GR TIEMS ...
Page 1354: ...6F2S1915 0 46 GRZ200 Soft 031 032 1333 Appendix 1 Signal list for common function ...
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Page 1480: ...6F2S1915 0 46 GRZ200 Soft 031 032 1459 Appendix 6 Ordering ...
Page 1497: ...6F2S1915 0 46 GRZ200 Soft 031 032 1476 Appendix 7 Technical data ...
Page 1518: ...6F2S1915 0 46 GRZ200 Soft 031 032 1497 Appendix 8 Manufacture setting ...
Page 1523: ...6F2S1915 0 46 GRZ200 Soft 031 032 1502 Appendix 10 CT requirement ...
Page 1531: ...6F2S1915 0 46 GRZ200 Soft 031 032 1510 Appendix 12 Engineering exercise ...
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