GC1100
SEDEMAC
Page | 5
For single genset application, it is mandatory to connect the genset phase and
neutral cables to the genset controller's phase R and Neutral terminals respectively
2.4
Load Current Measurements
Following table gives a brief overview of load current measurements
Table 7: Load current measurements
Controller's terminal number
35 and 36 (for phase B), 37 and 38 (for phase Y), 39 and 40 (for
phase R)
Measurement type
True RMS
Maximum CT secondary
current rating
5 A
Burden
0.25 VA
Accuracy
±1.4 % of full scale nominal (5 A)
Follow the recommended phase sequence while connecting the Current
Transformer (CT)
2.5
Mains Voltage and Frequency Measurements
Following table gives a brief overview of Mains voltage and frequency measurements
Table 8: Mains voltage and frequency measurements
Controller's terminal number
31, 32, 33, 34 (N, B, Y, R respectively)
Measurement type
True RMS
Phase to Neutral voltage
20 to 350 V- AC RMS
Phase to Phase voltage
20 to 606 V-AC RMS
Voltage accuracy
±2 % of full scale for Phase to Neutral
±2.5 % of full scale for Phase to Phase
Voltage resolution
1 V-AC RMS for Phase to Neutral
2 V-AC RMS for Phase to Phase
Frequency range
3 to 75 Hz
Frequency accuracy
Accuracy: 0.25% of full scale
Resolution: 0.1 Hz
For single phase application, it is mandatory to connect the mains phase and neutral
cables to the genset controller's phase R and Neutral terminals respectively.