GE Multilin
D60 Line Distance Protection System
5-177
5 SETTINGS
5.6 GROUPED ELEMENTS
5
Figure 5–74: APPLICATIONS OF THE
PH DIST XFMR VOL/CUR CONNECTION
SETTINGS
•
PHS DIST Z1 REACH:
This setting defines the zone reach for the forward and reverse applications. In the non-direc-
tional applications, this setting defines the forward reach of the zone. The reverse reach impedance in non-directional
applications is set independently. The reach impedance is entered in secondary ohms. The reach impedance angle is
entered as the
PHS DIST Z1 RCA
setting.
Zone 1 is characterized by transient overreach of less than 5% under source impedance ratios of up to 30. When set-
ting an under-reaching zone 1 for direct tripping and under-reaching pilot schemes (DUTT, PUTT) other factors should
be also considered as per rules of distance relaying. In non-directional applications, this 5% transient accuracy applies
to the forward reach only.
To achieve specified operating speed of distance elements, the relay internally calculates source to line impedance
ratio (SIR) from fault phasors. In these calculations, line impedance is estimated based on the zone 1 reach setting.
Therefore, in order to calculate the SIR value properly and to maintain the optimal operating speed of the distance ele-
ments, you need to set zone 1 reach with a regular 80 to 85% of the line impedance reach setting, even when zone 1
is disabled.
•
PHS DIST Z1 RCA:
This setting specifies the characteristic angle (similar to the ‘maximum torque angle’ in previous
technologies) of the phase distance characteristic for the forward and reverse applications. In the non-directional appli-
cations, this setting defines the angle of the forward reach impedance. The reverse reach impedance in the non-direc-
tional applications is set independently. The setting is an angle of reach impedance as shown in the distance
characteristic figures shown earlier. This setting is independent from
PHS DIST Z1 DIR RCA
, the characteristic angle of an
extra directional supervising function.
•
PHS DIST Z1 REV REACH
: This setting defines the reverse reach of the zone set to non-directional (
PHS DIST Z1 DIR
setting). The value must be entered in secondary ohms. This setting does not apply when the zone direction is set to
“Forward” or “Reverse”.
•
PHS DIST Z1 REV REACH RCA
: This setting defines the angle of the reverse reach impedance if the zone is set to
non-directional (
PHS DIST Z1 DIR
setting). This setting does not apply when the zone direction is set to “Forward” or
“Reverse”.
Z1
Z4
Z4 XFRM VOL CONNECTION = None
Z4 XFRM CUR CONNECTION = None
Z1 XFRM VOL CONNECTION = Dy11
Z1 XFRM CUR CONNECTION = Dy11
delta
wye, 330
o
lag
(a)
Z1
Z4
Z4 XFRM VOL CONNECTION = Yd1
Z4 XFRM CUR CONNECTION = None
Z1 XFRM VOL CONNECTION = None
Z1 XFRM CUR CONNECTION = Dy11
delta
wye, 330
o
lag
(b)
Z1
Z4
Z4 XFRM VOL CONNECTION = None
Z4 XFRM CUR CONNECTION = Yd1
Z1 XFRM VOL CONNECTION = Dy11
Z1 XFRM CUR CONNECTION = None
delta
wye, 330
o
lag
(c)
Zone 1
Zone 4
(e)
L
1
L
2
Z
L1
Z
T
Z
L2
Содержание D60
Страница 61: ...GE Multilin D60 Line Distance Protection System 2 31 2 PRODUCT DESCRIPTION 2 3 SPECIFICATIONS 2 ...
Страница 62: ...2 32 D60 Line Distance Protection System GE Multilin 2 3 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Страница 102: ...3 40 D60 Line Distance Protection System GE Multilin 3 3 DIRECT INPUT AND OUTPUT COMMUNICATIONS 3 HARDWARE 3 ...
Страница 134: ...4 32 D60 Line Distance Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Страница 508: ...5 374 D60 Line Distance Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 538: ...6 30 D60 Line Distance Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Страница 610: ...10 8 D60 Line Distance Protection System GE Multilin 10 2 BATTERIES 10 MAINTENANCE 10 ...
Страница 622: ...A 12 D60 Line Distance Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 745: ...GE Multilin D60 Line Distance Protection System B 123 APPENDIX B B 4 MEMORY MAPPING B ...
Страница 746: ...B 124 D60 Line Distance Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Страница 776: ...C 30 D60 Line Distance Protection System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Страница 792: ...E 10 D60 Line Distance Protection System GE Multilin E 1 IEC 60870 5 104 PROTOCOL APPENDIX E E ...
Страница 804: ...F 12 D60 Line Distance Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 826: ...xii D60 Line Distance Protection System GE Multilin INDEX ...