Ashida ADR241B, Instruction Manual

Page: 122 / 272

ADR241B
Doc ID : ADR241B-DO_IM_01
Ref ID : ADR241B/IM/SS
Rev No.
: 06
Page No. : 122 of 272
6.5 Negative Sequence Over current
Sr. No Parameter Defaults setting Setting / Ranges
1. Password 0000 0000 to 9999
This setting specifies to enter the set password
2. I2>1 Enable Yes Yes/No
This setting determine to enable (turn on) or disable (turn off) the Negative Sequence Over Current
function stage 1
3. I2>1 100% 1% to 250% in step of 1%
This setting determines Pick-up setting for first stage negative sequence over current element.
4. I2>1 TMS 1.00 0.01 to 10.0 in step of 0.005
This setting for the time multiplier setting to adjust the operating time of the IDMT characteristic.
5. I2>1 Curve IEC S Inverse 1
IEC S Inverse 1 / IEC S Inverse 2 /
IEC V Inverse / IEC E Inverse / IEC
LT Inverse / DT / IEEE M Inverse /
IEEE V Inverse / IEEE E Inverse /
IEEE Inverse / IEEE ST Inverse /
C12 User Defined
This setting is used to select the IDMT curves for the various applications.
6. tI2>1 DT Delay 0 s 0 to 100.0 in step of 0.01s
This setting is used to set the time-delay for the Definite Time (DT) setting if selected for first stage
negative sequence over current element.
7. I2>1 tRESET DT Not Editable
This setting determines the DT (Fix) reset/release characteristic.
8. tI2>1 tRESET Delay 1.00 s 0.00 to 100s in steps of 0.10s
This setting determines the reset/release time for Definite Time (DT).
9. I2>1 2nd Hrm BLK Disable Enable/ Disable
This setting determines the enable (turn on) or disable (turn off) the first stage negative sequence
over current element to block the trip command in presence of inrush current.
10. I2>2 Enable Enable Enable/ Disable
This setting determine to enable (turn on) or disable (turn off) the Negative sequence over current
function stage 2
11. I2>2 100% 5% to 3000% in step of 1%
This setting determines Pick-up setting for second stage negative sequence over current element.
12. tI2>2 Delay 1.00 Sec 00.0 to 100 sec in step of 0.01Sec
This setting for the time-delay for the definite time setting if selected for second stage negative
sequence over current element.
13. I2>2 2nd Hrm BLK Disable Enable/ Disable
This setting determines the enable (turn on) or disable (turn off) the second stage negative
sequence over current element to block the trip command in presence of inrush current.