Distance Protection, Quadrilateral Characteristic Zrwpdis; Identification; Application - ABB RER670 Applications Manual

1MRK 506 375-UEN A
7.2
7.2.1
7.2.2
Railway application RER670 2.2 IEC
Application manual
tDLD: The time delay for activating ZCVPSOF by the internal dead-line detection
is, by default, set to 0.2 seconds. It is suitable in most applications. The delay shall
not be set too short to avoid unwanted activations during transients in the system.
Mode: The operation of ZCVPSOF has three modes for defining the criteria for
tripping. The setting of Mode is, by default, UILevel, which means that the tripping
criterion is based on the setting of IPh< and UPh<. The choice of UILevel gives a
faster and more sensitive operation of the function, which is important for reducing
the stress that might occur when energizing onto a fault. However, the voltage
recovery can be slow in some systems when energizing the line. Therefore, if the
timer tDuration is set too short, ZCVPSOF can interpret this as a fault and release a
trip.
When Mode is set to Impedance, the operate criterion is based on the BC input
(breaker closing), which can be the start of the overreaching zone from the
impedance zone measurement. A nondirectional output signal should be used from
an overreaching zone. The selection of the Impedance mode gives increased
security.
When Mode is set to UILvl&Imp, the condition for tripping is an ORed between
UILevel and Impedance.
tDuration: The setting of the timer for the release of UILevel is, by default, 0.02
seconds, which has proven to be suitable in most cases from field experience. If a
shorter time delay is to be set, it is necessary to consider the voltage recovery time
during line energization.
Distance protection, quadrilateral characteristic
ZRWPDIS

Identification

Function description
Distance protection, quadrilateral
characteristic

Application

The distance protection, quadrilateral characteristic ZRWPDIS function is
applicable for all earthing types in 2-phase power networks. The SystemEarthing
setting is provided in order to have the distance protection function suitable for a
specific type of earthing system.
Impedance protection
IEC 61850 IEC 60617
identification identification
ZRWPDIS
Z<
IEC15000305 V1 EN-US
Section 7
GUID-5C7859F2-72C7-409D-8D6F-BCD7E9E18F52 v1
GUID-BAB9DF6F-B697-4C95-9548-3D86BF4D590D v1
ANSI/
IEEEidentification
21
GUID-3A97F695-7AB9-4049-8C3A-662B5CB4230F v2
97