Alstom MiCOM P846, Technical Manual

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Technical Data P846/EN TD/D
MiCOM P846
(TD) 2-1
TD
Technical Data
Mechanical Specifications
Design
Modular MiCOM Px40 platform relay, P846
80TE case. Mounting is front of panel flush
mounting, or 19“ rack mounted (ordering
options).
Enclosure Protection
Per IEC 60529: 1989
IP 52 Protection (front panel) against dust and
dripping water.
IP 30 Protection for sides of the case.
IP 10 Protection for the rear.
Weight
Case 80TE: approx. 13.1 kg
Terminals
AC Current and Voltage Measuring Inputs
Located on heavy duty (black) terminal block:
Threaded M4 terminals, for ring lug
connection.
CT inputs have integral safety shorting, upon
removal of the terminal block.
General Input/Output Terminals
For power supply, opto inputs, output contacts
and COM1 rear communications.
Located on general purpose (grey) blocks:
Threaded M4 terminals, for ring lug
connection.
Case Protective Earth Connection
Two rear stud connections, threaded M4.
Must be earthed (grounded) for safety,
minimum earth wire size 2.5mm
2
.
Front Port Serial PC Interface
EIA(RS)232 DTE, 9 pin D-type female
connector.
Courier protocol for interface to MiCOM S1
software.
Isolation to ELV level.
Maximum cable length 15m.
Front Download/Monitor Port
EIA(RS)232, 25 pin D-type female connector.
For firmware downloads.
Isolation to ELV level.
Rear Communications Port
EIA(RS)485 signal levels, two wire
Connections located on general purpose block,
M4 screw.
For screened twisted pair cable, multi-drop,
1000m max.
For K-Bus or DNP3 protocol (ordering options).
Isolation to SELV level.
Optional Second Rear Communications
Port
EIA(RS)232, 9 pin D-type female connector,
socket SK4.
Courier protocol: K-Bus, EIA(RS)232, or
EIA(RS)485 connection.
Isolation to SELV level.
Optional Rear IRIG-B Interface
BNC plug
Isolation to SELV level.
50 ohm coaxial cable.
Optional Rear Fiber Connection for
SCADA/DCS
BFOC 2.5 -(ST®)-interface for glass fiber, as
per IEC 874-10.
850nm short-haul fibers, one Tx and one Rx.
For Courier, IEC-870-5-103, DNP3 or
MODBUS protocol (ordering options).
Ratings
AC Measuring Inputs
Nominal frequency: 50 and 60 Hz (settable)
Operating range:
45 to 65Hz
Phase rotation: ABC
AC Current
Nominal current (In): 1 and 5 A dual rated.
(1A and 5A inputs use different transformer tap
connections, check correct terminals are
wired).
Nominal burden per phase: < 0.15 VA at In
Thermal withstand:
continuous
4 In
for 10s: 30 In
for 1s; 100 In
Linear to 64 In (non-offset AC current).
AC Voltage
Nominal voltage (Vn): 100 to 120 V or 380 to
480V phase-phase.
Nominal burden per phase: < 0.02 VA at Vn.
Thermal withstand:
continuous
2 Vn
for 10s: 2.6 Vn