Basler DGC-2020HD - Page 56

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Specifications DGC-2020HD
Time Dial Range .............................. 0 to 7,200 s (fixed time curve)
0 to 99 (46 – K factor curve)
Time Dial Increment ......................... 1
Inverse Time Curves ........................ See the Time Overcurrent Characteristic Curves chapter in the
Configuration manual.
Overcurrent (51) (Optional)
Pickup Range ................................... 0.18 to 4 Aac (1 A current sensing)
0.9 to 20 Aac (5 A current sensing)
Hysteresis......................................... 2 %
Time Dial Range .............................. 0 to 7,200 s (fixed time curve)
0 to 9.9 (inverse curve time multiplier)
Time Dial Increment ......................... 0.1
Inverse Time Curves ........................ See the Time Overcurrent Characteristic Curves chapter in the
Configuration manual.
Caution
For 1 A current sensing, current shall not exceed 3 amperes for 30
seconds or 4 amperes for 1 second. For 5 A current sensing, current
shall not exceed 15 amperes for 30 seconds or 20 amperes for 1
second. Exceeding the above limits may result in equipment damage.
Phase Current Differential (87) (Optional)
Minimum Restrained Pickup ............ 0.1 to 1 (multiples of tap)
Minimum Restrained Increment ....... 0.01
2
nd
Slope Pickup ............................... 0.1 to 20 (in multiples of tap)
2
nd
Slope Increment ......................... 0.01
Restraint Slope ................................ 15 to 60 %
Restraint Slope Increment ................ 1%
Alarm Slope ...................................... 50 to 100%
Alarm Slope Increment ..................... 1%
Unrestrained Tripping Pickup ........... 0 to 21 (in multiples of tap)
Unrestrained Tripping Increment ..... 1
2
nd
Harmonic .................................... 5 to 75%
2
nd
Harmonic Increment ................... 1%
5
th
Harmonic ..................................... 5 to 75%
5
th
Harmonic Increment .................... 1%
Time Delay ....................................... 0 to 60 s
Time Delay Increment ...................... 0.1 s
Transient Operate Time ................... 0.4 to 10 s
Transient Operate Time Increment .. 0.1 s
Transient Delay Time ....................... 0 to 10
Transient Delay Time Increment ...... 0.1 s
Neutral Current Differential (87N) (Optional)
Iop Minimum ..................................... 0.1 to 5 A
Iop Minimum Increment .................... 0.01 A
Hysteresis......................................... 5%
Time Delay Range ........................... 0 to 60 s
Time Delay Increment ...................... 0.1 s
Overcorrection Coefficient Range .... 1 to 1.3
Overcorrection Coefficient Inc. ......... 0.01
Transient Delay Time Range ........... 0 to 10 s
Transient Delay Time Increment ...... 0.1