EDP SGC Series, Руководство пользователя

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6 FUNCTIONS
6 FUNCTIONS
6.1 FAULT PASS DETECTION
1.1 DESCRIPTION
The fault pass detection unit (FPD) uses the voltage/current measures from the analog inputs to detect
and signal passing faults.
Phase and neutral faults can be independently detected. Voltage detection is used to improve the
detection of faults and service restoration.
The signaling can be reset by a timer and/or by service restoration. There is also the possibility of using a
digital input to reset the detector.
1.2 SIGNALS
The inputs are: analog inputs and external reset.
There are two types of outputs:
1. Fault detection: points out a fault detection and it is an impulsive signal (only activations can be
read)
2. Fault detection signaling: it becomes logical '1' when a fault is detected, and it is reset to '0'
according to the reset settings.
3. Directional detection indicators: signal the fault direction.
OUTPUTS
Fault pass detection Fault pass detected (either phase or neutral)
Phase Fault pass detection Phase Fault pass detected
Neutral Fault pass detection Neutral Fault pass detected
Fault pass signaling Fault pass signaling (either phase or neutral)
Phase Fault pass signaling Phase Fault pass signaling
Neutral Fault pass signaling Neutral Fault pass signaling
Directional enable Enables fault direction discrimination
Direction Direction of fault detection:
0: Output
1: Input
COMMANDS
Reset External signaling reset
Directional enable Enables fault direction discrimination
00110E4
EDP
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