7 Protection Parameter Settings
This setting determines the type of reset/release characteristics. IDMT applicable for IEEE curves only.
This setting determines the reset/release time for IEEE IDMT characteristic
8. IN2>1 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
9. IN2>1 2H Blocking Disabled Enabled/Disabled
This setting determines the enabling/disabling of blocking first stage derived earth fault element due to presence of inrush current.
If IN2>1 Blocking and 2nd Harmonic both settings are enabled, then (IN2
>1) 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.)
2.12.4.2 IN2>2 Function
Sr. No Parameter Default setting Setting Range
1. IN2>2 Function IEC S Inverse
Disabled/DT/IEC S Inverse/S
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 stage derived earth fault element.
2. IN2>2 Current Set 1*In
If DT 0.10 to 35*In step 0.01*In
If IDMT then 0.10 to 4*In step 0.01*In
This setting determines the pick-up setting for second stage derived earth fault element.
3. IN2>2 Time Delay 1 S 0 to 200s step 0.01s
This setting determines the time-delay for the definite time setting if selected for second stage of derived earth fault element.
0.025 to 1.200 step 0.005
This time multiplier setting is used to adjust the operating time of the IEC / UK IDMT characteristic.
5. IN2>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.
6. IN2>2 Reset Char DT DT/IDMT
This setting determines the type of reset/release characteristics. IDMT applicable for IEEE curves only.
This setting determines the reset/release time for IEEE IDMT characteristic
8. IN2>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
9. IN2>2 2H Blocking Disabled Enabled/Disabled
This setting determines the enabling/disabling of blocking second stage derived earth fault element due to presence of inrush current.
If IN2>2 Blocking and 2nd Harmonic both settings are enabled, then (IN2
>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.)
2.12.4.3 IN2>3 Function
1. IN2>3 Function IEC S Inverse
Disabled/DT/IEC S Inverse/S
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 stage derived earth fault element.
2. IN2>3 Current Set 1*In
If DT 1.0 to 35*In step 0.01*In
If IDMT then 0.10 to 4*In step 0.01*In
This setting determines the pick-up setting for third stage derived earth fault element.