instantaneous current curves (phase)...time-current curves for e-series protective relay family...
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Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
Instantaneous Current Curves (Phase)
Explanation:
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t = Tripping delay
I = Fault current
Pickup = If the pickup value is exceeded, the module/element starts to time out to trip .
t [s]
PickupI
1 100.01
0.1
1
10
100
1 100.01
0.1
1
10
100
tt
4040.00 x In
300 s300 s
0.0 s0.0 s
0.010.01PickupI
DEFT
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR) IM02602003E
Time Current Curves (PHASE)
The following characteristics are available:
NINV (IEC/XInv);VINV (IEC/XInv);LINV (IEC/XInv);EINV (IEC/XInv);MINV (ANSI/XInv);VINV (ANSI/XInv);EINV (ANSI/XInv);Thermal Flat;Therm Flat IT;Therm Flat I2T; andTherm Flat I4T.
Explanation:
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t = Tripping delay
t-multiplier = Time multiplier/tripping characteristic factor . The setting range depends on the selected tripping curve.I = Fault current
Pickup = If the pickup value is exceeded, the module/element starts to time out to trip .
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t-multiplier
x * Pickup (Multiples of Pickup)
TripReset
t = 0.14 *t-multiplier [s]
Pickup -1I( )2 t = 0.14 *t-multiplier [s]
Pickup -1I( )0.02
t [s]
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
IEC NINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s]t-multiplier
t = 13.5 *t-multiplier [s]
Pickup -1I( )t = 13.5 *t-multiplier [s]
Pickup -1I( )2
TripReset
x * Pickup (Multiples of Pickup)
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
IEC VINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
t = 120 *t-multiplier [s]
Pickup -1I( )2
t = 120 *t-multiplier [s]
Pickup -1I( )
TripReset
x * Pickup (Multiples of Pickup)
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
IEC LINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
t = 80 *t-multiplier [s]
Pickup -1I( )2t = 80 *t-multiplier [s]
Pickup -1I( )2
TripReset
x * Pickup (Multiples of Pickup)
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
IEC EINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
t = 4.85 *t-multiplier [s]
Pickup -1I( )2 t = 0.0515 *t-multiplier [s]
Pickup -1I( )0.02 + 0.1140( )
TripReset
x * Pickup (Multiples of Pickup)
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
ANSI MINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
TripReset
x * Pickup (Multiples of Pickup)
t = 19.61 *t-multiplier [s]
Pickup -1I( )2 + 0.491( )t = 21.6 *t-multiplier [s]
Pickup -1I( )2
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
ANSI VINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
t = 29.1 *t-multiplier [s]
Pickup -1I( )2
TripReset
x * Pickup (Multiples of Pickup)
t = 28.2 *t-multiplier [s]
Pickup -1I( )2 + 0.1217( )
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
ANSI EINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
x * In (Multiples of the Nominal Current)
TripReset
t = 5*3 *t-multiplier [s]2
InI( )
0t = 5*1 *t-multiplier [s]
InI( )
0
2
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
Therm Flat
t = 45*t-multiplier [s]
0.01 0.1 1 10 1000.01
0.1
1
10
100
1 103×
1 104×
TM[s]=
10
5
2
1.0
0.5
0.05
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
x * In (Multiples of the Nominal Current)
TripReset
t = 5*3 *t-multiplier [s]2
InI( )
0
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
IT
t = 5*3 *t-multiplier [s]1
InI( )
1
0.01 0.1 1 10 1000.01
0.1
1
10
100
1 103×
1 104×
TM[s]=
10
5
2
1.0
0.5
0.05
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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0.01 0.1 1 10 1000.01
0.1
1
10
100
1 103×
1 104×
TM[s]=
10
5
2
1.0
0.50.05
t [s] t-multiplier
x * In (Multiples of the Nominal Current)
TripReset
t = 5*3 *t-multiplier [s]2
InI( )
0
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
I2T
t = 5*3 *t-multiplier [s]
InI( )
2
2
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
x * In (Multiples of the Nominal Current)
TripReset
t = 5*3 *t-multiplier [s]2
InI( )
0
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
I4T
t = 5*3 *t-multiplier [s]
InI( )
4
4
0.01 0.1 1 10 1000.01
0.1
1
10
100
1 103×
1 104×
TM[s]=
10
52
1.00.5
0.05
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
Instantaneous Current Curves (Ground Current Calculated)
The following characteristics is available:
DEFT (definite time).
Explanation:
The ground current can be measured either directly via a zero sequence transformer or detected by a residual connection. The ground current can alternatively be calculated from the phase currents; but this is only possible if the current transformers are Wye-connected.
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t = Tripping delay
IG = Fault current
Pickup = If the pickup value is exceeded, the module/element starts to time out to trip .
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s]
1 100.01
0.1
1
10
100
1 100.01
0.1
1
10
100
I/I>
tt
4020.00 x In
300 s300 s
0.0 s0.0 s
0.010.01
PickupIR calc
PickupIR calc
DEFT
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
Instantaneous Current Curves (Ground Current Measured)
The following characteristics is available:
DEFT (definite time).
Explanation:
The ground current can be measured either directly via a zero sequence transformer or detected by a residual connection. The ground current can alternatively be calculated from the phase currents; but this is only possible if the current transformers are Wye-connected.
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t = Tripping delay
IX = Fault current
Pickup = If the pickup value is exceeded, the module/element starts to time out to trip .
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s]
1 100.01
0.1
1
10
100
1 100.01
0.1
1
10
100
I/I>
tt
4020.00 x In
300 s300 s
0.0 s0.0 s
0.010.01
PickupIX
PickupIX
DEFT
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
Time Current Curves (Ground Current)
The following characteristics are available:
NINV (IEC/XInv);VINV (IEC/XInv);LINV (IEC/XInv);EINV (IEC/XInv);MINV (ANSI/XInv);VINV (ANSI/XInv);EINV (ANSI/XInv);Thermal Flat;Therm Flat IT;Therm Flat I2T; andTherm Flat I4T.
Explanation:
The ground current can be measured either directly via a zero sequence transformer or detected by a residual connection. The ground current can alternatively be calculated from the phase currents; but this is only possible if the current transformers are Wye-connected.
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t = Tripping delay
t-multiplier = Time multiplier/tripping characteristic factor . The setting range depends on the selected tripping curve.IG = Fault current
Pickup = If the pickup value is exceeded, the module/element starts to time out to trip .
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t-multiplier
t = 0.14 *t-multiplier [s]
Pickup -1IG( )0.02
TripReset
t = 0.14 *t-multiplier [s]
Pickup -1IG( )2
x * Pickup (Multiples of Pickup)
t [s]
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
IEC NINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s]t-multiplier
TripReset
x * Pickup (Multiples of Pickup)
t = 13.5 *t-multiplier [s]
Pickup -1IG( )2
t = 13.5 *t-multiplier [s]
Pickup -1IG( )
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
IEC VINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
x * Pickup (Multiples of Pickup)
TripReset
t = 120 *t-multiplier [s]
Pickup -1IG( )t = 120 *t-multiplier [s]
-1IG( )2
Pickup
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
IEC LINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
x * Pickup (Multiples of Pickup)
TripReset
t = 80 *t-multiplier [s]
Pickup -1IG( )2 t = 80 *t-multiplier [s]
Pickup -1IG( )2
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
IEC EINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
x * Pickup (Multiples of Pickup)
t = 0.0515 *t-multiplier [s]
Pickup -1IG( )0.02 + 0.1140( )t = 4.85 *t-multiplier [s]
-1IG( )2
Pickup
TripReset
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
ANSI MINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
x * Pickup (Multiples of Pickup)
TripReset
t = 21.6 *t-multiplier [s]-1IG( )2
Pickup
t = 19.61 *t-multiplier [s]
Pickup -1IG( )2 + 0.491( )
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
ANSI VINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
x * Pickup (Multiples of Pickup)
TripReset
t = 28.2 *t-multiplier [s]
Pickup -1IG( )2 + 0.1217( )t = 29.1 *t-multiplier [s]
-1IG( )2
Pickup
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
ANSI EINV
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
TripReset
t = 5*1 *t-multiplier [s]2
IG( )0
IGnom
x * In (Multiples of the Nominal Current)
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
Therm Flat
t = 5 *t-multiplier [s]
IGnomIG( )
0
t = 5 *t-multiplier [s]
0.01 0.1 1 10 1000.01
0.1
1
10
100
1 103×
1 104×
TM[s]=
10
5
2
1.0
0.5
0.05
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
TripReset
x * In (Multiples of the Nominal Current)
t = 5*1 *t-multiplier [s]2
IG( )0
IGnom
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
IT
t = 5*1 *t-multiplier [s]
IGnomIG( )
1
1
0.01 0.1 1 10 1000.01
0.1
1
10
100
1 103×
1 10×
TM[s]=
510
5 2
2
1.0
0.5
0.05
4
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
TripReset
x * In (Multiples of the Nominal Current)
t = 5*1 *t-multiplier [s]2
IG( )0
IGnom
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
I2T
t = 5*1 *t-multiplier [s]
IGnomIG( )
2
2
0.01 0.1 1 10 1000.01
0.1
1
10
100
1 103×
1 104×
TM[s]=
10
5
2
1.00.50.05
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
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t [s] t-multiplier
TripReset
x * In (Multiples of the Nominal Current)
t =
Notice!Various Reset Modes are available . Resetting via characteristic, delayed, and instantaneous .
I4T
t = 5*1 *t-multiplier [s]
IGnomIG( )
4
45*1 *t-multiplier [s]2
IGnomIG( )
0
0.01 0.1 1 10 1000.01
0.1
1
10
100
1 103×
1 104×
TM[s]=
10
5
2
1.0
0.50.05