GE P50 Agile P253 User Manual

P50 Agile P253
7 Protection Parameter Settings
P253/EN M/C
7-19
2.12.6 Loss of Load Settings
Sr. No
Parameter
Default setting
Setting Range
1.
I<1 Status
Disabled
Enabled/Disabled
This setting is used to enable or disable the Loss of Load protection.
2. I<Current Set 1*In 0.1 – 1*In step 0.01*In
This setting determines pickup setting for undercurrent element.
3. I<Time delay 1 S 0.2s to 100s step 0.01s
This setting determines the time-delay for tripping.
4.
Tinhib
12 S
0.05s to 300s step 0.01s
This setting determines the inhibition time of the loss of load function on starting Tinhib.
2.12.7 NEG SEQUENCE O/C Settings
2.12.7.1 I2>1 Function
Sr. No
Parameter
Default setting
Setting Range
1. I2>1 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 first stage Negative sequence overcurrent element.
2. I2>1 Current Set 1*In
If DT 0.1 to 35*In step 0.01*In
If IDMT then 0.1 to 4*In step 0.01*In
This setting determines the pick-up setting for first stage Negative sequence overcurrent element.
3. I2>1 Time Delay 1.00 S 0 to 200s step 0.01s
This setting determines the time-delay for the definite time setting if selected for first stage Negative sequence overcurrent element.
4. I2>1 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.
5.
I2>1 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. I2>1 Reset Char DT DT/IDMT
This setting determines the type of reset/release characteristics. IDMT applicable for IEEE curves only.
7. I2>1 RTMS 1 0.025 to 1.2 step 0.005
This setting determines the reset/release time for IEEE IDMT characteristic
8.
I2>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. I2>1 2H Blocking Disabled Enabled/Disabled
This setting determines the enabling/disabling of blocking first stage Negative sequence overcurrent element due to presence of inrush
current.
If I2>1 Blocking and 2nd Harmonic both settings are enabled, then (I2>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.)
2.12.7.2 I2>2 Function
Sr. No
Parameter
Default setting
Setting Range
1. I2>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

GE P50 Agile P253 Specifications

General

Brand	GE
Model	P50 Agile P253
Category	Relays
Language	English