7 Protection Parameter Settings
5. I>2 Time Dial 1 0.01 to 100 step 0.01
This time multiplier setting is used to adjust the operating time of the IEEE/US IDMT curves.
This setting determines the type of reset/release characteristics. IDMT applicable for IEEE curves only.
7. I>2 RTMS 1 0.025 to 1.2 step 0.005
This setting determines the reset/release time for IEEE IDMT characteristic
8. I>2 tRESET 0.01 S 0 to 100s step 0.01s
This setting determines the reset/release time for Definite Time (DT) and all IDMT curve
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 settings 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.)
2.12.2.3 I>3 Function
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 /
E Inverse/US Inverse/ US ST Inverse
This setting determines the tripping characteristic for the third stage overcurrent element.
2. I>3 Current Set 1*In
If DT 1 to 35*In step 0.01*In
If IDMT then 0.05 to 4*In step 0.01*In
This setting determines the pick-up setting for second third overcurrent element.
3. I>3 Time Delay 1 S 0 to 100s step 0.01s
This setting determines the time-delay for the definite time setting if selected for third stage overcurrent element.
4. I>3 TMS 1 0.025 to 1.2 step 0.005
This time multiplier setting is used to adjust the operating time of the IEC/UK IDMT characteristic.
This time multiplier setting is used to adjust the operating time of the IEEE/US IDMT curves.
6. I>3 Reset Char DT DT/IDMT
This setting determines the type of reset/release characteristics. IDMT applicable for IEEE curves only.
7. I>3 RTMS 1 0.025 to 1.2 step 0.005
This setting determines the reset/release time for IEEE IDMT characteristic
This setting determines the reset/release time for Definite Time (DT) and all IDMT curve
9. I>3 2H Blocking Disabled Enabled/Disabled
This setting determines the enabling/disabling of blocking third stage overcurrent element due to presence of inrush current.
If I>3 Blocking and 2nd Harmonic both settings are enabled, then (I>3) 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.)