GE Multilin L30 Line Current Differential System 2-29
2 PRODUCT DESCRIPTION 2.5 SPECIFICATIONS
2
FREQUENCY
Nominal frequency setting:25 to 60 Hz
Sampling frequency: 64 samples per power cycle
Tracking frequency range:45 to 65 Hz
CONTACT INPUTS
Dry contacts: 1000 Ω maximum
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)
CONTACT INPUTS WITH AUTO-BURNISHING
Dry contacts: 1000 Ω maximum
Wet contacts: 300 V DC maximum
Selectable thresholds: 17 V, 33 V, 84 V, 166 V
Tolerance: ±10%
Contacts per common return: 2
Recognition time: < 1 ms
Debounce time: 0.0 to 16.0 ms in steps of 0.5
Continuous current draw:4 mA (when energized)
Auto-burnish impulse current: 50 to 70 mA
Duration of auto-burnish impulse: 25 to 50 ms
DCMA INPUTS
Current input (mA DC): 0 to –1, 0 to +1, –1 to +1, 0 to 5, 0 to 10,
0 to 20, 4 to 20 (programmable)
Input impedance: 379 Ω ±10%
Conversion range: –1 to + 20 mA DC
Accuracy: ±0.2% of full scale
Type: Passive
RTD INPUTS
Types (3-wire): 100 Ω Platinum, 100 & 120 Ω Nickel, 10
Ω Copper
Sensing current: 5 mA
Range: –50 to +250°C
Accuracy: ±2°C
Isolation: 36 V pk-pk
IRIG-B INPUT
IRIG formats accepted: B000…B007, B120…B127
IRIG control bits: IEEE Std C37.118.1-2011
Amplitude modulation: 1 to 10 V pk-pk
DC shift: TTL–Compatible
Input impedance: 50 kΩ
Isolation: 2 kV
REMOTE INPUTS (IEC 61850 GSSE/GOOSE)
Input points: 32, configured from 64 incoming bit pairs
Remote devices: 16
Default states on loss of comms.: On, Off, Latest/Off, Latest/On
Remote DPS inputs: 5
2.5.6 POWER SUPPLY
LOW RANGE
Nominal DC voltage: 24 to 48 V
Minimum DC voltage: 20 V
Maximum DC voltage: 60 V for RL power supply module (obso-
lete), 75 V for SL power supply module
Voltage loss hold-up: 200 ms duration at maximum load
NOTE: Low range is DC only.
HIGH RANGE
Nominal DC voltage: 125 to 250 V
Minimum DC voltage: 88 V
Maximum DC voltage: 300 V
Nominal AC voltage: 100 to 240 V at 50/60 Hz
Minimum AC voltage: 88 V at 25 to 100 Hz
Maximum AC voltage: 265 V at 25 to 100 Hz
Voltage loss hold-up: 200 ms duration at maximum load
ALL RANGES
Volt withstand: 2 × Highest Nominal Voltage for 10 ms
Power consumption: typical = 15 to 20 W/VA
maximum = 45 W/VA
contact factory for exact order code con-
sumption
INTERNAL FUSE
RATINGS
Low range power supply: 8 A / 250 V
High range power supply: 4 A / 250 V
INTERRUPTING CAPACITY
AC: 100 000 A RMS symmetrical
DC: 10 000 A