DOCA0105EN-09

Real-Time Measurements

General Description

The real-time measurements are refreshed every second. Real-time measurements include:

  • RMS (Root Mean Square) voltage and voltage unbalance

  • RMS (Root Mean Square) current and current unbalance

  • Active, reactive, and apparent power

  • Power factor and fundamental power factor

  • Frequency

  • Total harmonic distortion (THD) of voltage and current compared to the fundamental

  • Total harmonic distortion (thd) of voltage and current compared to the RMS value

Voltage

Address

Register

RW

Unit

Type

Range

Description

0x7D37–0x7D38

32056–32057

R

V

FLOAT32

41.6–2250

RMS phase-to-phase voltage V12

0x7D39–0x7D3A

32058–32059

R

V

FLOAT32

41.6–2250

RMS phase-to-phase voltage V23

0x7D3B–0x7D3C

32060–32061

R

V

FLOAT32

41.6–2250

RMS phase-to-phase voltage V31

0x7D3D–0x7D3E

32062–32063

R

V

FLOAT32

24–1500

RMS phase-to-neutral voltage V1N(1)

0x7D3F–0x7D40

32064–32065

R

V

FLOAT32

24–1500

RMS phase-to-neutral voltage V2N(1)

0x7D41–0x7D42

32066–32067

R

V

FLOAT32

24–1500

RMS phase-to-neutral voltage V3N(1)

(1) Value available when system type register returns 40 or 41.

Average Voltage

Address

Register

RW

Unit

Type

Range

Description

0x5214–0x5215

21013–21014

R

V

FLOAT32

41.6–2250

Average of 3 RMS phase-to-phase voltages: (V12 + V23 + V31)/ 3

0x5216–0x5217

21015–21016

R

V

FLOAT32

24–1500

Average of 3 RMS phase-to-neutral voltages: (V1N + V2N + V3N)/ 3(1)

(1) Value available when system type register returns 40 or 41.

Voltage Unbalance

Address

Register

RW

Unit

Type

Range

Description

0x5220–0x5221

21025–21026

R

FLOAT32

Phase-to-phase V12 voltage unbalance with respect to the average of 3 phase-to-phase RMS voltages

0x5222–0x5223

21027–21028

R

FLOAT32

Phase-to-phase V23 voltage unbalance with respect to the average of 3 phase-to-phase RMS voltages

0x5224–0x5225

21029–21030

R

FLOAT32

Phase-to-phase V31 voltage unbalance with respect to the average of 3 phase-to-phase RMS voltages

0x5226–0x5227

21031–21032

R

FLOAT32

Phase-to-neutral V1N voltage unbalance with respect to the average of 3 phase-to-neutral RMS voltages(1)

0x5228–0x5229

21033–21034

R

FLOAT32

Phase-to-neutral V2N voltage unbalance with respect to the average of 3 phase-to-neutral RMS voltages(1)

0x522A–0x522B

21035–21036

R

FLOAT32

Phase-to-neutral V3N voltage unbalance with respect to the average of 3 phase-to-neutral RMS voltages(1)

(1) Value available when system type register returns 40 or 41.

Current

Address

Register

RW

Unit

Type

Range

Description

0x7D1B–0x7D1C

32028–32029

R

A

FLOAT32

RMS current on phase 1

0x7D1D–0x7D1E

32030–32031

R

A

FLOAT32

RMS current on phase 2

0x7D1F–0x7D20

32032–32033

R

A

FLOAT32

RMS current on phase 3

0x7D21–0x7D22

32034–32035

R

A

FLOAT32

RMS current of neutral(1)

0x7D23–0x7D24

32036–32037

R

A

FLOAT32

Maximum of RMS current of phases 1, 2, 3, N (Most loaded phase)

0x7D25–0x7D26

32038–32039

R

-

FLOAT32

Current ratio on ground (Ig setting ratio)

0x7D27–0x7D28

32040–32041

R

-

FLOAT32

Current ratio on earth-leakage (IΔn setting ratio)(2)

(1) Value available when system type register returns 30 or 41.

(2) Value available with MicroLogic 7.0 X.

Address

Register

RW

Unit

Type

Range

Description

0x7D95–0x7D96

32150–32151

R

A

FLOAT32

Ground-fault current

0x7D97–0x7D98

32152–32153

R

A

FLOAT32

Earth-leakage current(1)

(1) Value available with MicroLogic 7.0 X.

Address

Register

RW

Unit

Type

Range

Description

0x5336-0x5337

21301-21302

R

-

FLOAT32

Current ratio on phase 1 (Ir setting ratio)

0x5338-0x5339

21303-21304

R

-

FLOAT32

Current ratio on phase 2 (Ir setting ratio)

0x533A-0x533B

21305-21306

R

-

FLOAT32

Current ratio on phase 3 (Ir setting ratio)

0x533C-0x534D

21307-21308

R

-

FLOAT32

Current ratio on neutral (Ir setting ratio x Type of neutral protection: 0.5, 1, 1.6, OFF)

If type of neutral protection is OFF, then the value returned is 0.

Current Unbalance

Address

Register

RW

Unit

Type

Range

Description

0x523E–0x523F

21055–21056

R

FLOAT32

Phase 1 current unbalance with respect to the average of 3 phase RMS currents

0x5240–0x5241

21057–21058

R

FLOAT32

Phase 2 current unbalance with respect to the average of 3 phase RMS currents

0x5242–0x5243

21059–21060

R

FLOAT32

Phase 3 current unbalance with respect to the average of 3 phase RMS currents

0x5244–0x5245

21061–21062

R

FLOAT32

Neutral current unbalance with respect to the average of 3 phase RMS currents(1)

(1) Value available when system type register returns 30 or 41.

Average Values

Address

Register

RW

Unit

Type

Range

Description

0x7D83–0x7D84

32132–32133

R

A

FLOAT32

Average of 3 phase RMS currents

0x7D85–0x7D86

32134–32135

R

V

FLOAT32

Average of 3 RMS phase-to-phase voltages: (V12+V23+V31)/3

0x7D87–0x7D88

32136–32137

R

V

FLOAT32

Average of 3 RMS phase-to-neutral voltages: (V1N+V2N+V3N)/3(1)

(1) Value available when system type register returns 40 or 41.

Frequency

Address

Register

RW

Unit

Type

Range

Description

0x7D43–0x7D44

32068–32069

R

Hz

FLOAT32

Frequency

Active Power

The flow sign of the active power depends on the configuration of register 8405:

Address

Register

RW

Unit

Type

Range

Description

0x7D47–0x7D48

32072–32073

R

W

FLOAT32

Active power on phase 1(1)

0x7D49–0x7D4A

32074–32075

R

W

FLOAT32

Active power on phase 2(1)

0x7D4B–0x7D4C

32076–32077

R

W

FLOAT32

Active power on phase 3(1)

0x7D4D–0x7D4E

32078–32079

R

W

FLOAT32

Total active power

(1) Value available when system type register returns 40 or 41.

Reactive Power

The flow sign of the reactive power depends on the configuration of register 8405:

Address

Register

RW

Unit

Type

Range

Description

0x7D4F–0x7D50

32080–32081

R

VAr

FLOAT32

Reactive power on phase 1(1)

0x7D51–0x7D52

32082–32083

R

VAr

FLOAT32

Reactive power on phase 2(1)

0x7D53–0x7D54

32084–32085

R

VAr

FLOAT32

Reactive power on phase 3(1)

0x7D55–0x7D56

32086–32087

R

VAr

FLOAT32

Total reactive power

(1) Value available when system type register returns 40 or 41.

Apparent Power

Address

Register

RW

Unit

Type

Range

Description

0x7D57–0x7D58

32088–32089

R

VA

FLOAT32

Apparent power on phase 1(1)

0x7D59–0x7D5A

32090–32091

R

VA

FLOAT32

0–16000000

Apparent power on phase 2(1)

0x7D5B–0x7D5C

32092–32093

R

VA

FLOAT32

0–16000000

Apparent power on phase 3(1)

0x7D5D–0x7D5E

32094–32095

R

VA

FLOAT32

0–16000000

Total apparent power

(1) Value available when system type register returns 40 or 41.

Power Factor

The sign of the power factor depends on the configuration of register 8404:

Address

Register

RW

Unit

Type

Range

Description

0x7DCD–0x7DCE

32206–32207

R

FLOAT32

Power factor on phase 1(1)

0x7DCF–0x7DD0

32208–32209

R

FLOAT32

Power factor on phase 2(1)

0x7DD1–0x7DD2

32210–32211

R

FLOAT32

Power factor on phase 3(1)

0x7DD3–0x7DD4

32212–32213

R

FLOAT32

Total power factor

(1) Value available when system type register returns 40 or 41.

Fundamental Power Factor (cos ϕ)

The sign of the fundamental power factor (cos ϕ) depends on the configuration of register 8404:

Address

Register

RW

Unit

Type

Range

Description

0x7DD5–0x7DD6

32214–32215

R

FLOAT32

Fundamental power factor on phase 1 (cos ϕ1)(1)

0x7DD7–0x7DD8

32216–32217

R

FLOAT32

Fundamental power factor on phase 2 (cos ϕ2)(1)

0x7DD9–0x7DDA

32218–32219

R

FLOAT32

Fundamental power factor on phase 3 (cos ϕ3)(1)

0x7DDB–0x7DDC

32220–32221

R

FLOAT32

Total fundamental power factor

(1) Value available when system type register returns 40 or 41.

Total Harmonic Distortion (THD) of Voltage Compared to the Fundamental

Address

Register

RW

Unit

Type

Range

Description

0x7DDD–0x7DDE

32222–32223

R

FLOAT32

Total harmonic distortion (THD) of phase-to-phase voltage V12 compared to the fundamental

0x7DDF–0x7DE0

32224–32225

R

FLOAT32

Total harmonic distortion (THD) of phase-to-phase voltage V23 in compared to the fundamental

0x7DE1–0x7DE2

32226–32227

R

FLOAT32

Total harmonic distortion (THD) of phase-to-phase voltage V31 in compared to the fundamental

0x7DE3–0x7DE4

32228–32229

R

FLOAT32

Total harmonic distortion (THD) of phase-to-neutral voltage V1N in compared to the fundamental(1)

0x7DE5–0x7DE6

32230–32231

R

FLOAT32

Total harmonic distortion (THD) of phase-to-neutral voltage V2N in compared to the fundamental(1)

0x7DE7–0x7DE8

32232–32233

R

FLOAT32

Total harmonic distortion (THD) of phase-to-neutral voltage V3N in compared to the fundamental(1)

0x528C–0x528D

21133–21134

R

FLOAT32

Average of 3 phase-to-phase voltage Total Harmonic Distortions (THD) compared to the fundamental average

0x528E–0x528F

21135–21136

R

FLOAT32

Average of 3 phase-to-neutral voltage Total Harmonic Distortions (THD) compared to the fundamental

(1) Value available when system type register returns 40 or 41.

Total Harmonic Distortion (thd) of Voltage Compared to RMS Voltage

Address

Register

RW

Unit

Type

Range

Description

0x5290–0x5291

21137–21138

R

FLOAT32

Total harmonic distortion (thd) of phase-phase voltage V12 compared to the RMS voltage

0x5292–0x5293

21139–21140

R

FLOAT32

Total harmonic distortion (thd) of phase-phase voltage V23 compared to the RMS voltage

0x5294–0x5295

21141–21142

R

FLOAT32

Total harmonic distortion (thd) of phase-phase voltage V31 compared to the RMS voltage

0x5296–0x5297

21143–21144

R

FLOAT32

Total harmonic distortion (thd) of phase-neutral voltage V1N compared to the RMS voltage(1)

0x5298–0x5299

21145–21146

R

FLOAT32

Total harmonic distortion (thd) of phase-neutral voltage V2N compared to the RMS voltage(1)

0x529A–0x529B

21147–21148

R

FLOAT32

Total harmonic distortion (thd) of phase-neutral voltage V3N compared to the RMS voltage(1)

0x529C–0x529D

21149–21150

R

FLOAT32

Average of 3 phase-to-phase voltage total harmonic distortions (thd) compared to the RMS voltage

0x529E–0x529F

21151–21152

R

FLOAT32

Average of 3 phase-to-neutral voltage total harmonic distortions (thd) compared to the RMS voltage

(1) Value available when system type register returns 40 or 41.

Total Harmonic Distortion (THD) of Current Compared to the Fundamental

Address

Register

RW

Unit

Type

Range

Description

0x7DE9–0x7DEA

32234–32235

R

FLOAT32

Total Harmonic Distortion (THD) of current on phase 1 compared to the fundamental

0x7DEB–0x7DEC

32236–32237

R

FLOAT32

Total Harmonic Distortion (THD) of current on phase 2 compared to the fundamental

0x7DED–0x7DEE

32238–32239

R

FLOAT32

Total Harmonic Distortion (THD) of current on phase 3 compared to the fundamental

0x7DEF–0x7DF0

32240–32241

R

FLOAT32

Average of 3 phase current Total Harmonic Distortions (THD) compared to the fundamental

Total Harmonic Distortion (thd) of Current Compared to RMS Current

Address

Register

RW

Unit

Type

Range

Description

0x52AA–0x52AB

21163–21164

R

FLOAT32

Total harmonic distortion (thd) of current on phase 1 compared to the RMS current

0x52AC–0x52AD

21165–21166

R

FLOAT32

Total harmonic distortion (thd) of current on phase 2 compared to the RMS current

0x52AE–0x52AF

21167–21168

R

FLOAT32

Total harmonic distortion (thd) of current on phase 3 compared to the RMS current

0x52B0–0x52B1

21169–21170

R

FLOAT32

Total harmonic distortion (thd) of current on neutral compared to the RMS current(1)

0x52B2–0x52B3

21171–21172

R

FLOAT32

Average of 3 phase current total harmonic distortions (thd) compared to the RMS current

(1) Value available when system type register returns 30 or 41.

Miscellaneous

Address

Register

RW

Unit

Type

Range

Description

0x52C6

21191

R

INT16U

0–1

Phase rotation sequence:

  • 0 = 123

  • 1 = 132

0x52C7

21192

R

INT16U

1–4

Total power factor quadrant:

  • 1 = Quadrant I

  • 2 = Quadrant II

  • 3 = Quadrant III

  • 4 = Quadrant IV

0x52C8

21193

R

INT16U

0–1

Lead or Lag:

  • 0 = Capacitive

  • 1 = Inductive

0x52C9–0x52CB

21194–21196

Reserved

0x52CC–0x52CD

21197–21198

R

FLOAT32

Deviation (%) of 3 RMS phase-to-phase voltages

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