GE MOV 2000, Инструкция по эксплуатации, Страница: 16 / 78

2. OPERATION PRINCIPLES
GEK-106271 MIV Digital Multifunctional Protective Relay 13
Index Status
14.5 FUNCTION-E
14.6 FUNCTION-F
14.7 FUNCTION-G
15.0 FUNCTION-H
15.1 FUNCTION-I
15.2 FUNCTION-J
15.3 PERMISSION 79 521
15.4 CLOSING PERMISSION 521
15.5 PERMISSION 79 520
15.6 CLOSING PERMISSION 520
2.3.2. OSCILLOGRAPHY RECORDING
The MOV can store up to 4 oscillography records, with a resolution of 16 samples per cycle. Each record has a
maximum capacity of 62 cycles, and the number of pre-fault cycles is selectable between 1 and 8. Each record
includes the following information:
•
Instantaneous values of voltage and current inputs (V
3
=V
A
, V
4
=V
B
, V
5
=V
C,
V
1
, V
2
):
•
Digital information:
- Protection units status.
- Digital inputs status.
•
Date and time.
•
Causes that triggered the oscillography.
EXTERNAL TRIGGER
COMMUNICATION TRIGGER
FUNCTION-A (TMP)
FUNCTION-A' (TMP)
FUNCTION-B
FUNCTION-C
FUNCTION-D
FUNCTION-E
FUNCTION-F
FUNCTION-G
FUNCTION-H
FUNCTION-I
FUNCTION-J
•
Active settings table in the moment of the record.
There is a configurable mask that determines which functions or internal status will trigger the oscillography. This
can be done either by a configurable digital inputs, by communications or from the HMI.
Oscillography records are retrieved and converted to COMTRADE (Standard IEEE C37.111-1991) format file,
using the GE-LOCAL communications software, and they can be viewed using the GE-OSC software, or any other
software package accepting COMTRADE or ASCII format (e.g. EXCEL
TM
).