Genset Voltage And Frequency Measurements; Genset Current Measurements; Earth Leakage/Fan Current Monitoring - Deif SGC 420 User Manual

3.3 Genset voltage and frequency measurements

Category
Controller terminals
Measurement type
Phase-to-neutral voltage
Phase-to-phase voltage
Voltage accuracy
Voltage resolution
Frequency range
Frequency accuracy
Frequency resolution
NOTE For single phase applications, it is mandatory to connect the genset phase and neutral cables to the genset controller's
phase L1 and neutral terminals.

3.4 Genset current measurements

Category
Controller terminals
Measurement type
Maximum CT secondary current rating
Burden
Measurement accuracy

3.5 Earth Leakage/Fan Current Monitoring

Category
Controller terminals
Measurement type
Maximum CT secondary current rating
Burden
Measurement accuracy
NOTE Follow the recommended phase sequence while connecting the current transformer (CT).
USER MANUAL 4189341227A UK
Specifications
54 (Neutral)
55 (L3)
56 (L2)
57 (L1)
True RMS
32 to 300 V AC RMS
32 to 520 V AC RMS
±1 % of full scale for phase-to-neutral
±1.5 % of full scale for phase-to-phase
1 V AC RMS for phase-to-neutral
2 V AC RMS for phase-to-phase
5 to 75 Hz
0.25 % of full scale
0.1 Hz
Specifications
43 and 42 (for phase L1)
45 and 44 (for phase L2)
47 and 46 (for phase L3)
True RMS
5 A
0.25 VA
±1.4 % of nominal
Specifications
48 and 49
True RMS
5 A
0.25 VA
±1.4 % of nominal
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