Chapter 5. Settings
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
5-4
Residual Current Element
Setting
Range
Step
Enable
YES / NO
Pickup
Standard Ground Ratio
(0.02 - 0.48) In
0.01 A
Optional Ground Ratio
(0.1 - 1.2) In
0.01 A
Time Delay
0.05 - 300 s
0.01s
Open Phase Element
Setting
Range
Step
Enable
YES / NO
Pickup
(0.05 - 0.4) I
2
/I
1
0.05
I
2
= Negative Sequence Overcurrent
I
1
= Positive Sequence Overcurrent
Minimum Load
(0.02 - 1) In
0.01 A
Time Delay
0.05 - 300s
0.01s
Breaker Failure Element
Setting
Range
Step
Enable
YES / NO
Phase Pickup
(0.04 - 0.48) In
0.01A
Ground Pickup
(0.04 - 0.48) In
0.01A
Time Delay
0.05 - 0.70s
0.01s
Note: Pickup ratio for phase and ground elements are in I
n
function (5A or 1A). For example, for 5A the phase
time ratio is (1 - 12A).
5.1.4
Recloser Settings (7IRD-A/J Models)
Recloser in Service
Setting
Range
Recloser in Service
YES / NO
Recloser Timers
Setting
Range
Step
Phase to Phase Faults (1, 2, 3 and 4 attempts)
0.2 - 300 s
0.01 s
Phase to Ground Faults (1, 2, 3 and 4 attempts)
0.2 - 300 s
0.01 s
Recloser Sequence Control Timers
Setting
Range
Step
Reference Voltage Time Delay
0.5 - 300 s
0.01 s
Reclose Inhibit Time Delay
0.05 - 300s
0.01 s
Reset Time Phase to Phase Faults
0.05 - 300 s
0.01 s
Reset Time Phase to Ground Faults
0.05 - 300 s
0.01 s
Reset Time After Manual Close
0.05 - 300 s
0.01 s
Sequence Check Time
0.05 - 0.35 s
0.01 s
Time Delay on Manual Close
0.05 - 300 s
0.01 s
