24
V/f
27/59
V<>
81
f<>
I
Y,b
I
Y,a
I
Y,c
V
I
P,a
I
P,b
I
P,c
I
P,d
I
virtual
87
DIFF
49
THRM1
49
THRM2
51
IDMT1
51
IDMT2
51
IDMT3
50
DTOC2
50
DTOC3
87G
REF_1
87G
REF_3
Metering
LIM_1
Overload rec.
Self Monitoring
LIM_2LIM_3
Fault rec.
Communication
to SCADA / substation control / RTU / modem ...
via RS485 or Fiber optics
using IEC 60870-5-101, -103, Modbus, DNP3, Courier
resp.
via RJ45 or Fiber optics using IEC 61850
16S
COMM1
16S
COMM2
16E
IEC
CLK
IRIGB
CMD_1SIG_1
26
MEASI MEASO
Transformer Differential Protection
P634
Always availableOptional
LIMIT
50
DTOC1
87G
REF_2
50/62BF
CBF_2
50/62BF
CBF_1
50/62BF
CBF_3
50/62BF
CBF_4
MCM_4MCM_3MCM_2MCM_1
CTS
Recording and
Data Acquisition
∑ ∑ ∑ ∑ ∑
Φ
∑
LGC
LOGIC / LOG2
TRMON
Fig. 1-2: Function diagram.
1.1.1 Design
The P634 is modular in design. The plug-in modules are housed in a robust
aluminum case and electrically interconnected via one analog p/c board and one
digital p/c board.
P634
1 Application and Scope
1-2 P634/EN M/R-42-A // P634‑311‑653