GE Multilin
T60 Transformer Protection System
2-23
2 PRODUCT DESCRIPTION
2.4 SPECIFICATIONS
2
GROUND DISTANCE
Characteristic:
Mho (memory polarized or offset) or
Quad (memory polarized or non-direc-
tional), selectable individually per zone
Reactance polarization: negative-sequence or zero-sequence
current
Non-homogeneity angle: –40 to 40° in steps of 1
Number of zones:
5
Directionality:
forward, reverse, or non-directional per
zone
Reach (secondary
Ω
):
0.02 to 500.00
Ω
in steps of 0.01
Reach accuracy:
Zone 1:
±5% including the effect of CVT tran-
sients up to an SIR of 30 and ±7% for
30<SIR< 60 at RCA angle
Zones 2 to 5:
±5% for steady fault conditions
Distance characteristic angle: 30 to 90° in steps of 1
Distance comparator limit angle: 30 to 90° in steps of 1
Directional supervision:
Characteristic angle:
30 to 90° in steps of 1
Limit angle:
30 to 90° in steps of 1
Zero-sequence compensation
Z0/Z1 magnitude:
0.00 to 10.00 in steps of 0.01
Z0/Z1 angle:
–90 to 90° in steps of 1
Zero-sequence mutual compensation
Z0M/Z1 magnitude:
0.00 to 7.00 in steps of 0.01
Z0M/Z1 angle:
–90 to 90° in steps of 1
Right blinder (Quad only):
Reach:
0.02 to 500
Ω
in steps of 0.01
Characteristic angle:
60 to 90° in steps of 1
Left blinder (Quad only):
Reach:
0.02 to 500
Ω
in steps of 0.01
Characteristic angle:
60 to 90° in steps of 1
Time delay:
0.000 to 65.535 s in steps of 0.001
Timer accuracy:
±3% of operate time or ±1/4 cycle
(whichever is greater)
Current supervision:
Level:
neutral current (3I_0)
Pickup:
0.050 to 30.000 pu in steps of 0.001
Dropout:
97 to 98%
Memory duration:
5 to 25 cycles in steps of 1
Voltage supervision pickup (series compensation applications):
0 to 5.000 pu in steps of 0.001
Operation time:
1 to 1.5 cycles (typical)
Reset time:
1 power cycle (typical)
RESTRICTED GROUND FAULT
Pickup:
0.005 to 30.000 pu in steps of 0.001
Dropout:
97 to 98% of pickup
Level accuracy:
0.1 to 2.0 x CT rating: ±0.5% of reading or ±1% of rated (which-
ever is greater)
>2.0 x CT rating
±1.5% of reading
Slope:
0 to 100% in steps of 1%
Pickup delay:
0 to 600.00 s in steps of 0.01
Dropout delay:
0 to 600.00 s in steps of 0.01
Operate time:
<1 power system cycle
PHASE/NEUTRAL/GROUND TOC
Current:
Phasor or RMS
Pickup level:
0.000 to 30.000 pu in steps of 0.001
Dropout level:
97% to 98% of pickup
Level accuracy:
0.1 to 2.0
×
CT:
±0.5% of reading or ±0.4% of rated
(whichever is greater)
> 2.0
×
CT:
±1.5% of reading > 2.0
×
CT rating
Curve shapes:
IEEE Moderately/Very/Extremely
Inverse; IEC (and BS) A/B/C and Short
Inverse; GE IAC Inverse, Short/Very/
Extremely Inverse; I
2
t; FlexCurves™
(programmable); Definite Time (0.01 s
base curve)
Curve multiplier:
Time Dial = 0.00 to 600.00 in steps of
0.01
Reset type:
Instantaneous/Timed (per IEEE)
Curve timing accuracy
at 1.03 to 20 x pickup:
±3.5% of operate time or ±½ cycle
(whichever is greater) from pickup to
operate
Voltage restraint:
modifies pickup current for voltage in the
range of 0.1<V<0.9 VT Nominal in a
fixed linear relationship
PHASE/NEUTRAL/GROUND IOC
Pickup level:
0.000 to 30.000 pu in steps of 0.001
Dropout level:
97 to 98% of pickup
Level accuracy:
0.1 to 2.0
×
CT rating: ±0.5% of reading or ±0.4% of rated
(whichever is greater)
> 2.0
×
CT rating
±1.5% of reading
Overreach:
<2%
Pickup delay:
0.00 to 600.00 s in steps of 0.01
Reset delay:
0.00 to 600.00 s in steps of 0.01
Operate time:
<16 ms at 3
×
pickup at 60 Hz
(Phase/Ground IOC)
<20 ms at 3
×
pickup at 60 Hz
(Neutral IOC)
Timer accuracy:
±3% of operate time or ±1/4 cycle
(whichever is greater)
Содержание T60
Страница 6: ...vi T60 Transformer Protection System GE Multilin TABLE OF CONTENTS ...
Страница 14: ...xiv T60 Transformer Protection System GE Multilin TABLE OF CONTENTS ...
Страница 34: ...1 20 T60 Transformer Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Страница 118: ...3 48 T60 Transformer Protection System GE Multilin 3 3 DIRECT INPUT OUTPUT COMMUNICATIONS 3 HARDWARE 3 ...
Страница 146: ...4 28 T60 Transformer Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Страница 490: ...5 344 T60 Transformer Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 522: ...6 32 T60 Transformer Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Страница 536: ...7 14 T60 Transformer Protection System GE Multilin 7 1 COMMANDS 7 COMMANDS AND TARGETS 7 ...
Страница 538: ...8 2 T60 Transformer Protection System GE Multilin 8 1 DIRECTIONAL PRINCIPLE 8 THEORY OF OPERATION 8 ...
Страница 568: ...10 12 T60 Transformer Protection System GE Multilin 10 6 DISPOSAL 10 MAINTENANCE 10 ...
Страница 596: ...A 28 T60 Transformer Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 716: ...B 120 T60 Transformer Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Страница 762: ...E 10 T60 Transformer Protection System GE Multilin E 1 IEC 60870 5 104 PROTOCOL APPENDIX E E ...
Страница 774: ...F 12 T60 Transformer Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 785: ...GE Multilin T60 Transformer Protection System H 9 APPENDIX H H 2 ABBREVIATIONS H Z Impedance Zone ...