GE MOV 2000, Инструкция по эксплуатации, Страница: 8 / 78

1. GENERAL DESCRIPTION AND APPLICATION
GEK-106271 MIV Digital Multifunctional Protective Relay 5
1. 1. 1. 1. GENERAL DESCRIPTION AND APPLICATION GENERAL DESCRIPTION AND APPLICATION GENERAL DESCRIPTION AND APPLICATION GENERAL DESCRIPTION AND APPLICATION
1.1. GENERAL DESCRIPTION
The MOV system is a digital multifunction unit for protection, control, and measure, using a group or
algorithms that allow the implementation of different voltage functions, described on section 2 of the present
instruction manual.
The MOV system is housed in a 19’’ 2 units high rack. Figure 1 shows the panel drilling dimensions.
The information and functions management can be performed with a PC connected to the serial port
(RS232 or fibre optic), or using the man-machine interface (MMI), that includes a 20 key keypad and an LCD with
two rows of 16 characters each, on the front of the unit.
The functions included in this system are as follows:
a) Protection:
•
Undervoltage functions (A, A’).
•
Voltage absence functions (B, C, D).
•
Voltage presence functions (E, F, J).
•
Weak infeed functions (G, H, I).
•
Closing and reclosing permission functions for two breakers.
b) Monitoring and Registering:
•
Three-phase line voltage, busbars 1 &2 voltage measurement
•
Associated line selector switch status.
•
Optical signalling with 17 LED indicators (16 configurable).
•
Self-check.
c) Analysis:
•
Event recording.
•
Oscillography recording.
d) Control:
•
3 settings tables.
•
Time synchronization using communications, or IRIG-B.
•
Configurable inputs and outputs.
•
User configurable internal logic.
e) Communications Interfaces:
•
Local and remote communications using three connectors, one on the front and two on the rear of the unit.
•
Manual interface (MMI) with keypad and alphanumeric display.
•
GE-INTRO configuration software and GE-LOCAL communications software, Windows
ä
based. Both
software packages are part of the GE-NESIS (GE NEtwork Substation Integration System).