3.5 Generator Current Sensing
Measurement type
True RMS conversion
Harmonics
Up to 11th
Nominal CT secondary rating
5A
Maximum continuous current
10A
Absolute maximum overload
50A for 1 second
Burden
0.25VA (0.01E current shunts)
Resolution
0.5% of 5A
Accuracy
±1% of Nominal (excluding CT error)
3.6 CT Polarity:
DGC202X has inbuilt CT polarity correction system. Measurement
of Power, Energies etc are
independent of Polarity of connected CT, but it must be ensured that the CT are connected to
right phase. Eg. R Phase CT must go to R Phase CT terminal on the controller.
Number
6 fully configurable
Arrangement
Connection to Ground
Polarity
Programmable as Normally Open or Closed
Low Level Threshold
<0.7 V
Max Input Voltage
+40V
Min Input Voltage
-40V
Contact Wetting Current
1ma
Open Circuit Voltage
3V
3.7 Inputs
3.7.1 Digital Inputs
Measurement Type
Resistance measurement by measuring voltage across sensor
with a fixed current applied
Arrangement
Differential resistance measurement input
Measurement Current
13 mA independent of System Voltage
Full scale
600 Ohms
Resolution
Fuel 1%
Temperature 1°
Accuracy
<1% of Full scale ± 4 Ω excluding transducer errors
Max Common Mode Voltage 0.5V
Display Range
Depends upon the sensor selected.
(Sensor can be selected from pre-programmed sensors or user
can program sensor data)
3.7.2 Analog Input
3.7.2.1 Coolant Temperature and Fuel
