PowerLogic Easergy P3 Applications

PowerLogic Easergy P3 Applications

Protection Functions

Protection functions ANSI code Standard (P3U) Advanced (P3x)
P3U20 P3U30 P3F30 P3L30 P3M30 P3M32 P3G30 P3G32 P3T32

Distance

21

1

Under-impedance

21G

2

2

Fault locator

21FL

1

1

1

Overfluxing

24

1

1

1

Synchro-check

25

2

2

2

2

2

2

2

2

Undervoltage

27

3

3

3

3

3

3

3

3

Positive sequence undervoltage

27P

2

2

Stator ground-fault detection

27TN/64G

1

1

Directional active underpower

32

2

2

2

2

2

2

2

2

Phase undercurrent

37

1

1

1

1

Temperature monitoring

38/49T

12 [1] [2]

12 [1]

12 [1]

12 [1]

12 [1]

12 [1]

12 [1]

12 [1]

12 [1]

Loss of field

40

1

1

Under-reactance

21/40

2

2

Negative sequence overcurrent (motor, generator)

46

2

2

2

2

2

2

2

Current unbalance, broken conductor

46BC

1

1

Incorrect phase sequence

47

1

1

1

1

Excessive start time, locked rotor

48/51LR

1

1

1

1

Thermal overload

49

1

1

1

1

1

1

1

1

1

Phase overcurrent

50/51

3

3

3

3

3

3

3

3

3

Ground fault overcurrent

50N/51N

5

5

5

5

5

5

5

5

5

Breaker failure

50BF

1

1

1

1

1

1

1

1

1

Switch On To Fault (SOTF)

50HS

1

1

1

1

1

1

1

1

1

Capacitor bank unbalance

51C

2

2

2

2

2

2

2

2

2

Voltage dependant overcurrent

51V

1

1

1

1

1

Overvoltage

59

3

3

3

3

3

3

3

3

Capacitor overvoltage

59C

1

1

Neutral voltage displacement

59N

3

3

2

2

2

2

2

2

2

CT supervision

60

1

1

1

1

1

1

1

2

2

VT supervision

60FL

1

1

1

1

1

1

1

1

Stator ground fault

64S

1

1

Frequent start inhibition

66

1

1

1

1

Directional phase overcurrent

67

4

4

4

4

4

4

4

4

Directional ground-fault o/c

67N

3

3

3

3

3

3

3

3

3

Transient intermittent

67NI

1

1

Magnetizing inrush detection

68F2

1

1

1

1

1

1

1

1

1

Fifth harmonic detection

68H5

1

1

1

1

1

1

1

1

1

Pole slip

78PS

1

1

Auto-recloser

79

5

5

Over or under frequency

81

2/2

2/2

2/2

2/2

2/2

2/2

2/2

2/2

Rate of change of frequency

81R

1

1

1

1

1

1

1

1

Under frequency

81U

2

2

2

2

2

2

2

2

Lockout

86

1

1

1

1

1

1

1

1

1

Line differential

87L

2

Machine differential

87M

2

2

Transformer differential

87T

2

Programmable stages

99

8

8

8

8

8

8

8

8

8

Arc-flash detection stages

8

8

8

8

8

8

8

Cold load pick-up

1

1

1

1

1

1

1

1

1

Programmable curves

3

3

3

3

3

3

3

3

3

Setting groups[3]

4

4

4

4

4

4

4

4

4

Control Functions

Control functions Standard (P3U) Advanced (P3x)
P3U20 P3U30 P3F30 P3L30 P3M30 P3M32 P3G30 P3G32 P3T32

Switchgear control and monitoring

1/6

6

6

6

6

6

6

6

6

Switchgear monitoring only

2

2

2

2

2

2

2

2

2

Programmable switchgear interlocking

Local control on single-line diagram

Local control with O/I keys

Local/remote function

Function keys

2

2

2

2

2

2

2

2

2

Custom logic (logic equations)

Control with Smart application

Measurement

Measurement Standard (P3U) Advanced (P3x)
P3U20 P3U30 P3F30 P3L30 P3M30 P3M32 P3G30 P3G32 P3T32

RMS current values

[4]

[4]

[4]

RMS voltage values

RMS active, reactive and apparent power

Frequency

Fundamental frequency current values

[4]

[4]

[4]

Fundamental frequency voltage values

Fundamental frequency active, reactive and apparent power values

Power factor

Energy values active and reactive

Energy transmitted with pulse outputs

Demand values: phase currents

Demand values: active, reactive, apparent power and power factor

Minimum and maximum demand values: phase currents

Minimum and maximum demand values: RMS phase currents

Minimum and maximum demand values: active, reactive, apparent power and power factor

Maximum demand values over the last 31 days and 12 months: active, reactive, apparent power

Minimum demand values over the last 31 days and 12 months: active, reactive power

Maximum and minimum values: currents

Maximum and minimum values: voltages

Maximum and minimum values: frequency

Maximum and minimum values: active, reactive, apparent power and power factor

Harmonic values of phase current and THD

[4]

[4]

[4]

Harmonic values of voltage and THD

Voltage sags and swells

Logs and Records

Logs and Records Standard (P3U) Advanced (P3x)
P3U20 P3U30 P3F30 P3L30 P3M30 P3M32 P3G30 P3G32 P3T32

Sequence of event record

Disturbance record

Tripping context record

Monitoring Functions

Monitoring functions Standard (P3U) Advanced (P3x)
P3U20 P3U30 P3F30 P3L30 P3M30 P3M32 P3G30 P3G32 P3T32

Trip circuit supervision (ANSI 74)

1

1

1

1

1

1

1

1

1

Circuit breaker monitoring

1

1

1

1

1

1

1

1

1

Relay monitoring

Footnotes

  1. Using external RTD module
  2. 12 optional temperature sensors for P3U20
  3. Not all protection functions have 4 setting groups. See details in the manual.
  4. Function available on both sets of CT inputs

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