REGISTER Data description
Number of
pickups
The number of times each protection element, 51P, 50P-1, 50P-2, I (unbal),
51N and 50N, has picked up, counting up to 999.
Number of
trips
*
The number of times each protection element, 51P, 50P-1, 50P-2, has
tripped. When the counters reach their maximum values (65535), it will roll
over.
*
The number of times protection elements, 51N and 50N, 49 and ARC has
tripped and external trips. When the counter reaches its maximum value
(65535), it will roll over.
Number of
AR shots
*
Number of AR shots (shot 1) initiated by the trip signal from element 50P-1,
counting up to 255
*
Number of AR shots (shot 1) initiated by the digital input signal, counting up
to 255
*
Number of AR shots (shot 1) initiated by the pickup or trip signal from
element 51P , counting up to 255
*
Number of AR shots (shot 1) initiated by the or trip signal from element 51N,
counting up to 255
*
Number of AR shots (shot 2) initiated by the trip signal from element 50P-1,
counting up to 255
*
Number of AR shots (shot 2) initiated by the digital input signal, counting up
to 255
*
Number of AR shots (shot 2) initiated by the pickup or trip signal from
element 51P, counting up to 255
*
Number of AR shots (shot 2) initiated by the pickup or trip signal from
element 51N, counting up to 255
*
Number of AR shots (shot 3) initiated by the trip signal from element 50P-1,
counting up to 255
*
Number of AR shots (shot 3) initiated by the digital input signal, counting up
to 255
*
Number of AR shots (shot 3) initiated by the pickup or trip signal from
element 51P, counting up to 255
*
Number of AR shots (shot 3) initiated by the pickup or trip signal from
element 51N, counting up to 255
5.1.13. Communication ports
The relay is provided with an optical communication port (infrared) on the front
panel. Rear communication is optional and requires a communication module,
which can be provided with either a plastic fibre-optic, combined fibre-optic (plastic
and glass) or RS-485 connection. The relay is connected to an automation system
via the rear connection. The optional rear communication module allows the use of
either the SPA bus, IEC 60870-5-103 or Modbus communication protocol.
For connection to the DNP 3.0 communication system, the relay can be provided
with an optional DNP 3.0 rear communication module with RS-485 connection. For
further information on optional rear communication module connections, refer to
Section 5.2.3. Serial communication connections.
82
REF610REF610
Feeder Protection Relay
Technical Reference Manual - ANSI Version
1MRS755535
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