9469300994 7-5
DGC-2020HD Specifications
Minimum Voltage (hi) ....................... 10 Vdc
Maximum Voltage (lo) ...................... 0.5 Vdc when driving external 5.1 kΩ load to 13 Vdc external pull-up.
No-Load PWM Voltage Amplitude ... 14 V nominal
Load Share Output
Voltage Rating .................................. –10 to 10 Vdc
Metering
Generator and Bus Voltage (rms)
Metering Range ................................ 0 to 576 Vac (direct measurement)
577 to 99,999 Vac (through VT using VT ratio setting)
VT Ratio Range ................................ 1:1 to 125:1 in primary increments of 1
Accuracy* ......................................... ±1.0% of programmed rated voltage or ±2 Vac
Display Resolution ........................... 1 Vac
* Voltage metering indicates 0 V when generator voltage is below 2% of the full-scale rating.
Generator Current (rms)
Generator current is measured at the secondary windings of user-supplied 1 A or 5 A CTs.
Metering Range ................................ 0 to 5,000 Aac
CT Primary Range ........................... 1 to 5,000 Aac in primary increments of 1 Aac
Accuracy* ......................................... ±1.0% of programmed rated current or ±2 Aac
Display Resolution ........................... 1 Aac
* Current metering indicates 0 A when generator current is below 2% of the full-scale rating.
Generator and Bus Frequency
Frequency is sensed through the generator and bus voltage inputs (phases A and B).
Metering Range ................................ 10 to 90 Hz
Accuracy........................................... ±0.25% or 0.05 Hz
Display Resolution ........................... 0.1 Hz
Apparent Power
Indicates total kVA and individual line kVA (4-wire, line-to-neutral or 3-wire, line-to-line).
Measurement/Calculation Methods
Total ................................................. kVA = (V
L-L
× I
L
×√3) ÷ 1000
4-Wire, Line-to-Neutral ..................... kVA calculated with respect to neutral
3-Wire, Line-to-Line .......................... A-phase kVA = V
AB
× I
A
÷ 1000 ÷ √3
B-phase kVA = V
BC
× I
B
÷ 1000 ÷ √3
C-phase kVA = V
CA
× I
C
÷ 1000 ÷ √3
Accuracy........................................... ±2% of the full-scale indication or ±2 kVA *†
* kVA metering indicates 0 kVA when the generator kVA is below 2% of the full-scale rating.
† Applies when temperature is between −40°C to +70°C (–40°F to +158°F).
Power Factor
Metering Range ................................ 0.2 leading to 0.2 lagging
Calculation Method .......................... PF = cosine of the angle between phase AB voltage (Vab) and
phase A current (Ia) *
Accuracy........................................... ±0.01 †
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