Table 57: FDPSPDIS (21) Group settings (advanced)
Name Values (Range) Unit Step Default Description
OperationZ< Disabled
Enabled
- - Enabled Operation of impedance based measurement
OperationI> Disabled
Enabled
- - Disabled Operation of current based measurement
IPh> 10 - 2500 %IB 1 120 Start value for phase over-current element
Pickup_N 10 - 2500 %IB 1 20 Start value for trip from 3I0 over-current
element
TimerPP Disabled
Enabled
- - Disabled Operation mode Disable/Enable of Zone
timer, Ph-Ph
tPP 0.000 - 60.000 s 0.001 3.000 Time delay to trip, Ph-Ph
TimerPE Disabled
Enabled
- - Disabled Operation mode Disable/ Enable of Zone
timer, Ph-G
tPG 0.000 - 60.000 s 0.001 3.000 Time delay to trip, Ph-E
3.6.4 Full-scheme distance measuring, Mho characteristic
ZMHPDIS (21)
Function description IEC 61850
identification
IEC 60617 identification ANSI/IEEE
C37.2 device
number
Full-scheme distance protection, mho
characteristic
ZMHPDIS
S00346 V1 EN
21
3.6.4.1 Application
Introduction
Transmission and sub-transmission networks are being extended and often become
more and more complex, consisting of a high number of multi-circuit and/or multi
terminal lines of very different lengths. These changes in the network will normally
impose more stringent demands on the fault clearing equipment in order to maintain an
unchanged or increased security level of the power system.
Full-scheme distance measuring, mho characteristic function (ZMHPDIS) in the IED is
designed to meet basic requirements for application on transmission and sub-
transmission lines (solid grounded systems) although it also can be used on distribution
levels.
Section 3 1MRK504116-UUS C
IED application
260
Application manual
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