GE MiCOM P40 Agile Technical Manual page 100

P44x/EN ST/Hb6
(ST) 4-26
Menu text
GROUP 1 – NEG SEQUENCE O/C
I2>1 Time VTS
Sets the VTS time-delay. The VTS alarm will occur if VT fault occurs during more than the
VTS time-delay.
I2>1 TMS
Sets the Time Multiplier Setting (TMS), to adjust the operating time of the IEC IDMT
characteristics.
I2>1 Time Dial
Sets the time dial settings, to adjust the operating time of the IEEE/ US IDMT curves. The
Time Dial is a multiplier of the standard curve equation, to achieve the required tripping
time. The reference curve is based on Time Dial = 1.
Care: Certain manufacturer's use a mid-range value of time dial = 5 or 7. So; it may be
necessary to divide by 5 or 7 to achieve parity.
I2>1 Reset Char
Setting to determine the type of reset / release characteristics of IEEE / US curves.
I2>1 tReset
Setting that determines the reset / release time reset characteristics.
I2>2 Function
I2>2 Directional
Sets the second phase overcurrent threshold (I2>2) characteristics. The conditions are
'disabled', definite time (DT) or inverse definite minimum time (IDMT).
Settings are the same as for the first stage overcurrent element.
I2>2 VTS Block
I2>2 Current Set
I2>2 Time Delay
I2>2 Time VTS
I2>2 TMS
I2>2 Time Dial
I2>2 Reset Char
I2>2 tReset
I2>3 Status
The third element is fixed as non-directional, for instantaneous or definite time delayed
tripping.
I2>3 Directional
I2>3 VTS Block
I2>3 Current Set
I2>3 Time Delay
I2>3 Time VTS
Default setting
0.200 s 0 s
1.000 0.025
1.000 0.01
DT DT, Inverse
0 s 0 s
DT Disabled, DT, IEC S Inverse, IEC V Inverse, IEC
E Inverse, UK LT Inverse, IEEE M Inverse, IEEE
V Inverse, IEEE E Inverse, US Inverse, US ST
Inverse
Non Directional Non-Directional, Directional FWD, Directional
REV
Block Block, Non-directional
0.20 x In 0.08 x In
10.00 s 0 s
0.200 s 0 s
1.000 0.025
1.000 0.01
DT DT, Inverse
0 s 0 s
Disabled Disabled, Enabled
Non Directional Non-directional, Directional FWD, Directional REV
Block Block, Non-directional
0.20 x In 0.08 x In
10.00 s 0 s
0.200 s 0 s
MiCOM P40 Agile P442, P444
Setting range
Min Max
100.0 s
1.200
100.0
100.0 s
4.00 x In
100.0 s
100.0 s
1.200
100.0
100.0 s
4.00 x In
100.0 s
100.0 s
Setting
Step size
0.01 s
0.005
0.01
0.01 s
0.01 x In
0.01 s
0.01 s
0.005
0.01
0.01 s
0.01 x In
0.01 s
0.01 s