2.8.3 I>2 Function
Sr. No Parameter Default setting Setting Range
1. I>2 Function IEC S Inverse Disabled / DT / IEC S Inverse / S Inverse
1.3Sec / IEC V Inverse / IEC E Inverse / UK
LT Inverse / IEEE M Inverse / IEEE V
Inverse / IEEE E Inverse / US Inverse / US
ST Inverse
This setting determines the tripping characteristic for the second overcurrent element.
2. I>2 Current Set 1*In If DT 0.20 to 35.00*In step 0.01*In
If IDMT then 0.20 to 2.50*In step 0.01*In
This setting determines Pick-up setting for second stage overcurrent element.
3. I>2 Time Delay 1 000.00 to 100.00s step 0.01s
This setting determines the time-delay for the definite time setting if selected for second stage overcurrent element.
4. I>2 TMS 1 0.025 to 1.200 step 0.005
This setting determines the time multiplier setting used to adjust the operating time of the IEC IDMT characteristic.
5. I>2Time Dial 1 000.01 to 100.00 step 0.01
This setting determines the new time multiplier setting to adjust the operating time of the IEEE IDMT curves.
6. I>2 tRESET 0 000.000 to 100.00s step 0.01s
This setting determines the reset/release time for all types of curve.
7. I>2 2H Blocking Disabled Enabled / Disabled
This setting determines the enabling/disabling of blocking second stage overcurrent element due to presence of inrush current.
If I>2 Blocking and 2nd Harmonic both setting are enabled, then (I>2) trip command will be blocked in case 2nd harmonics content in
any phase is above the 2ndHarm Thresh. and fundamental current is below I> lift 2H setting . (Set in SYSTEM CONFIG Menu.)
2.8.4 I>3 Function
Sr. No Parameter Default setting Setting Range
1. I>3 Function IEC S Inverse Disabled / DT / IEC S Inverse / S Inverse
1.3Sec / IEC V Inverse / IEC E Inverse / UK
LT Inverse / IEEE M Inverse / IEEE V
Inverse / IEEE E Inverse / US Inverse / US
ST Inverse
This setting determines the tripping characteristic for the third overcurrent element.
2. I>3 Current Set 1*In If DT 1.0 to 35.00* In step 0.01*In
If IDMT then 0.20 to 2.50*In step 0.01*In
This setting determines Pick-up setting for second stage overcurrent element.
3. I>3 Time Delay 1 000.00 to 100.00s step 0.01s
This setting determines the time-delay for the definite time setting if selected for second stage overcurrent element.
4. I>3 TMS 1 0.025 to 1.200 step 0.005
This setting determines the time multiplier setting used to adjust the operating time of the IEC IDMT characteristic.
5. I>3Time Dial 1 000.01 to 100.00 step 0.01
This setting determines the new time multiplier setting to adjust the operating time of the IEEE IDMT curves.
6. I>3 tRESET 0 000.00 to 100.00s step 0.01s
This setting determines the reset/release time for all types of curve.
7. I>3 2H Blocking I>3 2H Blocking I>3 2H Blocking
This setting determines the enabling/disabling of blocking second stage overcurrent element due to presence of inrush current.
If I>2 Blocking and 2nd Harmonic both setting are enabled, then (I>2) trip command will be blocked in case 2nd harmonics content in
any phase is above the 2ndHarm Thresh and fundamental current is below I> lift 2H setting . (Set in SYSTEM CONFIG Menu.)
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