86
General fault criteria (GFC)
Chapter 4
Line distance
4.7
Technical data
Table 98:
GFC - General fault criteria, impedance and current based
Function
Value
Impedance setting
range at I
r
= 1A
Reactive reach for-
ward
Positive-sequence reac-
tance
0.1-400 ohm/phase in steps of
0.01 ohm/phase
Zero-sequence reactance
0.1-1200 ohm/phase in steps
of 0.01 ohm /phase
Reactive reach
reverse
Positive-sequence reac-
tance
0.1-400 ohm/phase in steps of
0.01 ohm/phase
Zero-sequence reactance
0.1-1200 ohm/phase in steps
of 0.01 ohm /phase
Resistive reach
(forward & reverse)
For phase - phase faults
0.1-400 ohm/loop in steps
of 0.01 ohm/loop
For phase - earth faults
0.1-400 ohm/loop in steps
of 0.01 ohm/loop
Load encroachment
0.1-400 ohm/loop in steps
of 0.01 ohm/loop
Safety load impedance
angle
5-45 degrees in steps of 1
degrees
Overcurrent setting
range
Phase currents
10-400% of I1b in steps of 1%
Residual current
10-150% of I4b in steps of 1%
Timers
For phase-to-phase measuring elements
0.000-60.000 s in steps of
1 ms
For phase-to-earth measuring elements
0.000-60.000 s in steps of
1 ms
Static angular accu-
racy at 0 degrees and
85 degrees
Voltage range (0.1-1.1) x U
r
+/-5 degrees
Current range (0.5-30) x I
r
Reset ratio
105% typically
Summary of Contents for REL 501-C1 2.5
Page 1: ...Technical reference manual Line distance protection terminal REL 501 C1 2 5 ...
Page 2: ......
Page 26: ...14 Introduction to the technical reference manual Chapter 1 Introduction ...
Page 42: ...30 Technical data Chapter 2 General ...
Page 66: ...54 Blocking of signals during test BST Chapter 3 Common functions ...
Page 142: ...130 Time delayed overvoltage protection TOV Chapter 6 Voltage ...
Page 162: ...150 Autorecloser AR Chapter 9 Control ...
Page 174: ...162 Event function EV Chapter 10 Logic ...
Page 210: ...198 Serial communication Chapter 12 Data communication ...
Page 226: ...214 Serial communication modules SCM Chapter 13 Hardware modules ...
Page 230: ...218 Terminal diagrams Chapter 14 Diagrams Figure 87 REL 501 C1 with DC switch ...
Page 234: ...222 Terminal diagrams Chapter 14 Diagrams ...
Page 237: ......