7.3.8 Technical data
Table 91: ZMFPDIS, ZMFCPDIS technical data
Function
Range or value Accuracy
Number of zones 3 selectable
directions, 3 fixed
directions
-
Minimum operate current, Ph-Ph
and Ph-E
(5-6000)% of IBase ±1.0% of I
r
Positive sequence reactance
reach, Ph-E and Ph-Ph loop
(0.01 - 3000.00) ohm/
phase
±2.0% of static accuracy
±2.0 deg static angular accuracy
Conditions:
Voltage range: (0.1-1.1) x U
r
Current range: (0.5-30) x I
r
Angle: At 0 deg and 85 deg
Positive sequence resistance
reach, Ph-E and Ph-Ph loop
(0.00 - 1000.00) ohm/
phase
Zero sequence reactance reach (0.01 - 9000.00) ohm/p
Zero sequence resistive reach (0.00 - 3000.00) ohm/p
Fault resistance reach, Ph-E and
Ph-Ph
(0.01 -9000.00) ohm/l
Dynamic overreach < 5% at 85 deg
measured with CVTs
and 0.5 < SIR < 30
Definite time delay to trip, Ph-E
and Ph-Ph operation
(0.000-60.000) s ±2.0% or ±35 ms whichever is greater
Operate time 16 ms typically IEC 60255-121
Reset time at 0.1 to 2 x Zreach Min = 20 ms
Max = 35 ms
-
Reset ratio 105% typically -
7.4 High speed distance protection ZMFCPDIS
7.4.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
High speed distance protection zone
(zone 1-6)
ZMFCPDIS
S00346 V1 EN
21
7.4.2 Functionality
High speed distance protection (ZMFCPDIS) provides sub-cycle, down towards half-
cycle, operate time for basic faults within 60% of the line length and up to around SIR
5. At the same time, it is specifically designed for extra care during difficult conditions
in high voltage transmission networks, like faults on long heavily loaded lines and
Section 7 1MRK502052-UEN B
Impedance protection
226
Technical manual
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