GE D30 Instruction Manual page 38

SPECIFICATIONS
Timer accuracy:
95% settling time for df/dt:
Operate time:
Typical times are average operate times including variables such as frequency change instance, test method, and so on, and can vary by
±0.5 cycles.
2
BREAKER ARCING CURRENT
Principle:
Initiation:
Compensation for auxiliary relays:
Alarm threshold:
Fault duration accuracy:
Availability:
INCIPIENT CABLE FAULT DETECTION
Principle:
Availability:
Pickup level:
Reset delay:
Operating mode:
SYNCHROCHECK
Max voltage difference:
Max angle difference:
Max freq. difference:
Hysteresis for max. freq. diff.:
Dead source function:
S-CLS MAX dF:
S-CLS MIN dF:
V2 MAG CORR FACTOR:
V2 ANGLE SHIFT:
AUTORECLOSURE
Single breaker applications, 3-pole tripping schemes
Up to four reclose attempts before lockout
Independent dead time setting before each shot
Possibility of changing protection settings after each shot with FlexLogic
POWER SWING DETECT
Functions:
Characteristic:
Measured impedance:
Blocking / tripping modes:
Tripping mode:
Current supervision:
Pickup level:
Dropout level:
Fwd / reverse reach (sec. Ω):
Left and right blinders (sec. Ω):
Impedance accuracy:
Fwd / reverse angle impedances:
Angle accuracy:
Characteristic limit angles:
Timers:
Timer accuracy:
2-24
±3% of operate time or ±1/4 cycle (whichever is greater)
<24 cycles
typically 9.5 cycles at 2 × pickup
typically 8.5 cycles at 3 × pickup
typically 6.5 cycles at 5 × pickup
2
accumulates breaker duty (I t) and measures fault duration
programmable per phase from any FlexLogic operand
0 to 65.535 s in steps of 0.001
2
0 to 50000 kA -cycle in steps of 1
0.25 of a power cycle
1 per CT bank with a minimum of 2
detection of ½ cycle or less overcurrent condition during normal load
two per CT/VT module (not including 8Z modules)
0.1 to 10.00 pu in steps of 0.01
0.000 to 65.535 s in steps of 0.001
number of counts, counts per time window
0 to 400000 V in steps of 1
°
0 to 100 in steps of 1
0.00 to 2.00 Hz in steps of 0.01
0.00 to 0.10 Hz in steps of 0.01
None, LV1 & DV2, DV1 & LV2, DV1 or DV2, DV1 xor DV2, DV1 & DV2 (L = Live, D = Dead)
0.10 to 2.00 Hz in steps of 0.01
0.00 to 1.00 Hz in steps of 0.01
0.10 to 10.00 in steps of 0.01
° ° °
-180 to +180 in steps of 1
Power swing block, out-of-step trip
Mho or Quad
Positive-sequence
2-step or 3-step
Early or Delayed
0.050 to 30.000 pu in steps of 0.001
97 to 98% of pickup
0.10 to 500.00 Ω in steps of 0.01
0.10 to 500.00 Ω in steps of 0.01
±5%
40 to 90° in steps of 1
±2°
40 to 140° in steps of 1
0.000 to 65.535 s in steps of 0.001
±3% of operate time or ±1/4 cycle (whichever is greater)
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION