26 9469200994 Rev —
Specifications DGC-2020ES
Generator Protection Functions
Overvoltage (59) and Undervoltage (27)
Pickup Range ................................... 70 to 1,000 Vac
Pickup Increment ............................. 1 Vac
Inhibit Frequency Range .................. 20 to 66 Hz (27 function only)
Activation Delay Range .................... 0 to 30 s
Activation Delay Increment .............. 0.1 s
The maximum voltage that can be safely applied to the DGC-2020ES
is 576 V. The pickup range is higher so that when the low-line override
is used, and the scale factor is 0.5 or less, effective protection levels of
500 V can be reached with a scale factor of 0.5.
Underfrequency (81U) and Overfrequency (81O)
Pickup Range ................................... 45 to 66 Hz
Pickup Increment ............................. 0.1 Hz
Activation Delay Range .................... 0 to 30 s
Activation Delay Increment .............. 0.1 s
Inhibit Voltage Range ....................... 70 to 576 Vac (81U function only)
Overcurrent (50)
Pickup Range ................................... 0.18 to 1.18 Aac (1 A current sensing)
0.9 to 7.75 Aac (5 A current sensing)
Time Dial Range .............................. 0 to 7,200 s (fixed time curve)
Time Dial Increment ......................... 0.1
Phase Imbalance (47)
Pickup Range ................................... 5 to 100 Vac
Pickup Increment ............................. 1 Vac
Activation Delay Range .................... 0 to 30 s
Activation Delay Increment .............. 0.1 s
Logic Timers
Hours Setting Range ........................ 0 to 250
Hours Setting Increment .................. 1
Minutes Setting Range ..................... 0 to 250
Minutes Setting Increment ............... 1
Seconds Setting Range ................... 0 to 1,800
Seconds Setting Increment .............. 0.1
Accuracy........................................... ±15 ms
Communication Interface
USB
Specification Compatibility ............... USB 2.0
Data Transfer Speed ........................ 115,200 baud
Connector Type ................................ Mini-B jack
RDP-110
Minimum Wire Size .......................... 20 AWG
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