ABB Relion 670 series - Setting of Timers for Distance Protection Zones; Phase Selection, Quadrilateral Characteristic with Settable Angle; Frpspdis (21); Identification

The default setting of IMinPUPP and IMinPUPG is 20% of IBase where IBase is the
chosen current for the analogue input channels. The value has been proven in practice to
be suitable in most of the applications. However, there might be applications where it is
necessary to increase the sensitivity by reducing the minimum operating current down to
10% of IBase. This happens especially in cases, when the IED serves as a remote back-up
protection on series of very long transmission lines.
Setting IMinOpIR blocks the phase-to-ground loop if 3I
0
<IMinOpIR. The default setting
of IMinOpIR is 5% of IBase.
The minimum operating fault current is automatically reduced to 75% of its set value, if
the distance protection zone has been set for the operation in reverse direction.
8.9.3.10 Setting of timers for distance protection zones
The required time delays for different distance protection zones are independent of each
other. Distance protection zone 1 can also have a time delay, if so required for selectivity
reasons. Time delays for all zones can be set in a range of 0 to 60 seconds. The tripping
function of each particular zone can be inhibited by setting the corresponding Operation
parameter to Off. Different time delays are possible for the phase-to-groundtPG and for
the phase-to-phase tPP measuring loops in each distance protection zone separately, to
further increase the total flexibility of a distance protection.
8.10 Phase selection, quadrilateral characteristic with
settable angle FRPSPDIS (21)
8.10.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Phase selection, quadrilateral
characteristic with settable angle
FRPSPDIS
Z<phs
SYMBOL-DD V1 EN
21
8.10.2 Application
The operation of transmission networks today is in many cases close to the stability limit.
The ability to accurately and reliably classify the different types of fault, so that single pole
tripping and autoreclosing can be used plays an important role in this matter. Phase
selection, quadrilateral characteristic with settable angle (FRPSPDIS, 21) is designed to
1MRK 506 369-UUS - Section 8
Impedance protection
Line distance protection REL670 2.2 ANSI 333
Application manual