Instantaneous Current Curves (Phase)...Time-Current Curves for E-Series Protective Relay Family (EDR, EGR, EMR, ETR) IM02602003E. Time Current Curves (PHASE) The following characteristics

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