Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR) Instantaneous Current Curves (Phase) Explanation: www.eaton.com/pr t = Tripping delay I = Fault current Pickup = If the pickup value is exceeded, the module/element starts to time out to trip . t [s] Pickup I 1 10 0.01 0.1 1 10 100 1 10 0.01 0.1 1 10 100 t 40 40.00 x In 300 s 0.0 s 0.0 s 0.0 1 0.0 1 Pickup I DEFT
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Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
Instantaneous Current Curves (Phase)
Explanation:
www.eaton.com/pr
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
E0077904
Sticky Note
Accepted set by E0077904
E0077904
Sticky Note
Accepted set by E0077904
E0077904
Sticky Note
MigrationConfirmed set by E0077904
E0077904
Sticky Note
MigrationConfirmed set by E0077904
E0077904
Sticky Note
Completed set by E0077904
E0077904
Sticky Note
Completed set by E0077904
E0077904
Typewritten Text
In = CT primary
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 .
E0077904
Typewritten Text
In = CT primary Pickup Range = [0.02 - 4.00] x In
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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.
www.eaton.com/pr
t = Tripping delay
IG = Fault current
Pickup = If the pickup value is exceeded, the module/element starts to time out to trip .
E0077904
Typewritten Text
In = CT primary
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
www.eaton.com/pr
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.
www.eaton.com/pr
t = Tripping delay
IX = Fault current
Pickup = If the pickup value is exceeded, the module/element starts to time out to trip .
E0077904
Typewritten Text
In = CT primary
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
www.eaton.com/pr
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.
www.eaton.com/pr
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 .
E0077904
Typewritten Text
In = CT primary Pickup Range = [0.02 - 4.00] x In Sensitive Ground Option Pickup Range = [0.002 - 2.000] x In
Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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)
www.eaton.com/pr
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
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