GE Multilin 369

CHAPTER 5: PRODUCT DESCRIPTION SPECIFICATIONS
369 MOTOR MANAGEMENT RELAY – QUICKSTART GUIDE 5–61
GROUND CURRENT INPUT (GF CT)
CT Input (rated):...............................................1 A/5 A secondary and 50:0.025
CT Primary: ........................................................1 to 5000 A (1 A/5 A)
Range: ................................................................0.1 to 1.0 × CT primary (1 A/5 A)
0.05 to 25.0 A (50:0.025)
Full Scale: ...........................................................1.0 × CT primary (1 A/5 A)
25 A (50:0.025)
Frequency:.........................................................20 to 100 Hz
Conversion: .......................................................True RMS 1.04ms/sample
Accuracy at 50/60 Hz:
for 1 A/5 A: .........................................±1.0% of full scale (1 A/5 A)
for 50:0.025........................................±0.07 A at <1 A
±0.20 A at <25 A
Accuracy at variable frequency:
for 1 A tap: ....................................................±1.5% for 40 to 100 Hz
±2.5% for 20 to 39 Hz
for 5 A tap: ....................................................±2% for 40 to 100 Hz
±3% for 20 to 39 Hz
for 50:0.025: .................................................±0.2 A at <1 A
±0.6 A at <25 A
GROUND CT BURDEN
GROUND CT CURRENT WITHSTAND
PHASE/LINE VOLTAGE INPUT (VT) (OPTION M)
VT ratio:...............................................................1.00 to 240.00:1 in steps of 0.01
VT secondary: ..................................................240 V AC (full scale)
Range:..................................................................0.05 to 1.00 × full scale
Frequency:.........................................................20 to 100 Hz
Conversion: .......................................................True RMS 1.04 ms/sample
Accuracy:...............................................±2.5% of full scale for ≤ 200 V at 20 to 39 Hz
±1% of full scale for 12 to 240 V at > 40 Hz
Burden:................................................................>200 kΩ
Max. continuous: ............................................280 V AC
GROUND CT INPUT (A) BURDEN
VA (Ω)
1A
1 0.04 0.036
5 0.78 0.031
20 6.79 0.017
5A
5 0.07 0.003
25 1.72 0.003
100 25 0.003
50:0.025
0.025 0.24 384
0.1 2.61 261
0.5 37.5 150
GROUND CT WITHSTAND TIME
1s 2s continuous
1 A 100 × CT 40 × CT 3 × CT
5 A 100 × CT 40 × CT 3 × CT
50:0.025 10 A 5 A 150 mA