Metering; Inputs - GE L30 Instruction Manual

2.4 SPECIFICATIONS
FAULT LOCATOR
Number of independent fault locators: 1 per CT bank
Method:
Voltage source:
2
Maximum accuracy if:
Relay accuracy:
Worst-case accuracy:
VT +
%error
CT +
%error
Z +
Line%error
METHOD +
%error
RELAY ACCURACY
%error
RMS CURRENT: PHASE, NEUTRAL, AND GROUND
Accuracy at
0.1 to 2.0 × CT rating: ±0.25% of reading or ±0.1% of rated
> 2.0 × CT rating:
RMS VOLTAGE
Accuracy:
REAL POWER (WATTS)
Accuracy:
AC CURRENT
CT rated primary:
CT rated secondary:
Nominal frequency:
Relay burden:
Conversion range:
Standard CT:
Sensitive Ground CT module:
0.002 to 4.6 × CT rating RMS symmetrical
Current withstand:
2-22
single-ended
wye-connected VTs, delta-connected
VTs and neutral voltage, delta-connected
VTs and zero-sequence current (approxi-
mation)
fault resistance is zero or fault currents
from all line terminals are in phase
±1.5% (V > 10 V, I > 0.1 pu)
user data
user data
user data
see chapter 8
+ (1.5%)
(whichever is greater)
±1.0% of reading
±0.5% of reading from 10 to 208 V
±1.0% of reading at
–0.8 < PF ≤ –1.0 and 0.8 < PF ≤ 1.0
1 to 50000 A
1 A or 5 A by connection
20 to 65 Hz
< 0.2 VA at rated secondary
0.02 to 46 × CT rating RMS symmetrical
20 ms at 250 times rated
1 sec. at 100 times rated
continuous 4xInom
Short circuit rating:150000 RMS sym-
metrical amperes, 250 V maximum (pri-
mary current to external CT)
L30 Line Current Differential System
2 PRODUCT DESCRIPTION
PHASOR MEASUREMENT UNIT
Output format: per IEEE C37.118 standard
Number of channels: 14 synchrophasors, 8 analogs, 16 digi-
tals
TVE (total vector error) <1%
Triggering: frequency, voltage, current, power, rate
of change of frequency, user-defined
Reporting rate: 1, 2, 5, 10, 12, 15, 20, 25, 30, 50, or 60
times per second
Number of clients: One over TCP/IP port, two over UDP/IP
ports
AC ranges: As indicated in appropriate specifications
sections
Network reporting format: 16-bit integer or 32-bit IEEE floating
point numbers
Network reporting style: rectangular (real and imaginary) or polar
(magnitude and angle) coordinates
Post-filtering: none, 3-point, 5-point, 7-point
Calibration: ±5°
REACTIVE POWER (VARS)
Accuracy: ±1.0% of reading at –0.2 ≤ PF ≤ 0.2
APPARENT POWER (VA)
Accuracy: ±1.0% of reading
FREQUENCY
Accuracy at
V = 0.8 to 1.2 pu: ±0.01 Hz (when voltage signal is used
for frequency measurement)
I = 0.1 to 0.25 pu: ±0.05 Hz
I > 0.25 pu: ±0.02 Hz (when current signal is used for
frequency measurement)
AC VOLTAGE
VT rated secondary: 50.0 to 240.0 V
VT ratio: 1.00 to 24000.00
Nominal frequency: 20 to 65 Hz; the nominal system fre-
quency should be chosen as 50 Hz or
60 Hz only.
Relay burden: < 0.25 VA at 120 V
Conversion range: 1 to 275 V
Voltage withstand: continuous at 260 V to neutral
1 min./hr at 420 V to neutral
CONTACT INPUTS
1000 Ω maximum
Dry contacts:
Wet contacts: 300 V DC maximum
Selectable thresholds: 17 V, 33 V, 84 V, 166 V
Tolerance: ±10%
Contacts per common return: 4
Recognition time: < 1 ms
Debounce time: 0.0 to 16.0 ms in steps of 0.5
Continuous current draw:4 mA (when energized)

2.4.4 METERING

2.4.5 INPUTS

GE Multilin