PowerLogic Easergy P5 Applications

PowerLogic Easergy P5 Applications

Protection Functions

Protection Functions ANSI code P5F30 P5M30
Current protection

Phase overcurrent

50/51

3

3

Earth/ground fault overcurrent[1]

50N/51N

5 / 8

5 / 8

Directional phase overcurrent

67

4

4

Directional earth/ground fault overcurrent

67N

3

3

Transient intermittent/ground fault

67NI

1

Neutral admittance

21YN

2

2

Negative sequence overcurrent

46 (I2/I1)

1

1

Current unbalance, Broken conductor

46BC (I2)

1

-

Breaker failure

50BF

1

1

Phase undercurrent

37

1

Switch on to fault (SOTF)

50HS

1

1

Cold load pickup (CLP or CLPU)

1

1

Voltage protection

Undervoltage

27

3

3

Overvoltage

59

3

3

Earth/ground fault overvoltage

59N

3

3

Negative sequence overvoltage

47

2

2

Frequency protection

Over and/or underfrequency

81

2

2

Underfrequency

81U

2

2

Rate of change of frequency

81R

2

Thermal protection

Thermal overload

49

1

1

Temperature monitoring

38

16

16

Power protection

Wattmetric earth/ground fault

32N

2

2

Directional active underpower

32/37N

2

2

Rotating machine protection

Frequent start inhibition

66

1

Motor start-up supervision, locked rotor

48/51LR

1

Positive sequence undervoltage

27P

2

Underspeed[2]

14

2

Overspeed[2]

12

2

Anti-backspin[2]

ABS

1

Line protection

Fault locator

21FL

1

Auto-Recloser

79

1

Transformer protection

Magnetizing inrush detection

68H2

1

1

Fifth harmonic detection

68H5

1

1

Capacitor protection

Capacitor bank unbalance

51C

2

Capacitor overvoltage

59C

1

Other protection

Arc-flash detection

50ARC

8

8

Programmable stages

99

8

8

Programmable curves

3

3

Control, monitoring, supervision

Synchronization check

25

1

Lockout relay

86

1

1

CT supervision

60

1

1

VT supervision

60

1

1

Setting groups

4

4

Control Functions

Control Functions P5F30 P5M30

Control with Mobile application

Switchgear control and monitoring

6

6

Switchgear monitoring only

2

2

Programmable switchgear interlocking

Local control on single-line diagram

Local switchgear control with OPEN/CLOSE keys

Local/remote function

Function keys

7

7

Custom logic (equations)

Measurement Functions

Measurement functions P5F30 P5M30

RMS current values

RMS voltage values

RMS active, reactive and apparent power

Frequency

Fundamental frequency current values

Fundamental frequency voltage values

Fundamental frequency active, reactive and apparent power values

Power factor

Motor speed detection[2]

Energy values: active and reactive

Demand values: phase currents

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

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: frequency

Logs and Records

Logs and records P5F30 P5M30

Sequence of event record

Disturbance record

Tripping context record

Relay maintenance data log

Security data log

Monitoring Functions

Monitoring functions ANSI code P5F30 P5M30

Trip circuit supervision

74

1

1

Circuit breaker monitoring

1

1

Relay monitoring

Footnotes

  1. Number of stages depends on the number of residual current inputs.
  2. Function available if 12 DI / 4 DO board is present.

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