TECHNICAL DATA
19
NA011 - Manual - 05 - 2022
3.8 CONTROL AND MONITORING
Automatic reclose (79)
79 Function mode 79 Mode Rapid - Rapid+Slow
Number of delayed reclosures N
.DAR
0...5
Rapid reclosure dead time t
rdt
0.1...60 s
0.0...19.9 s step 0.1 s,
20..60 s step 1 s
Slow reclosure dead time t
sdt
1...200 s (step 1 s)
Reclaim time t
r
1...200 s (step 1 s)
Slow reclosure fault discrimination time t
d
1...10 s (step 1 s)
Circuit Breaker monitoring
Circuit breaker diagnostic
Diagnostic (CB check) 52a/52b - 52a - 52b
Oscillography (DFR)
Format
COMTRADE
Number of records
2
Recording mode
circular
Sampling rate
16 samples / power cycle
Set trigger:
• Pre-trigger time
0...63 T
[1]
[2]
• Trigger inputs
IN1, IN2, IN3
• Triggeroutputs K1...K4
• Manual Trigger ThyVisor
• General Trigger general from start / trips Start, Trip
• Trigger from start / trips Start I>, I>>, ...Trip I>...
Set analog channels:
Analog 1...Analog 4
• Instantaneous currents value i
L1
, i
L2
, i
L3
, i
E
• Phase currents I
L1
, I
L2
, I
L3
• Residual current I
E
Set digital channels:
• Inputs IN1, IN2, IN3
• Outputs K1...K4
• General trigger from start / trip General Start, General Trip
3.9 MEASURES
Currents
RMS value of the fundamental component for phase currents (I
L1
, I
L2
, I
L3
)
RMS value of the fundamental component for residual current (I
E
)
Digital inputs
IN1 None, 52b, Trip EXT
[2]
IN2 None, 52a, Trip EXT, T, CB Open
IN3 None, 79 Enable, 79 Remote
[3]
, Trip EXT, T, CB Close
Automatic Reclose
79 Active Mode On - Off
79 Cycle State Reset - On - Off
79 Run On - Off
79 Residual time
79 Last event
Circuit Breaker
Position Open - Closed - Unknown
Note 1 - T = number of power cycles
Example, with setting T=4 the pre-trigger is 80 ms with f = 50 Hz
Note 2 - With “Trip-EXT” programming, when the binary input is activated the selected output relay (K1 ... K4) is driven
Note 3 -With “79 Remote” programming, when the binary input is activated the reclosing cycle is started (trigger from external protective device)
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