Measured data – Rockwell Automation 865 Differential Protection Relay User Manual

Page 29

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Local Panel User Interface

2-17

865-UM001A-EN-P – July 2009

Measured

Data


The measured values can be read from the main menus and their
submenus. Furthermore, any measurement value in the following
table can be displayed on the main view next to the single line
diagram. Up to six measurements can be shown.

Table 2.3 – Measured Values

Value

Menu/Submenu

Description

f P/POWER

Frequency

[Hz]

IL1

I/PHASE CURRENTS

Phase current IL1 [A]

IL2

I/PHASE CURRENTS

Phase current IL2 [A]

IL3

I/PHASE CURRENTS

Phase current IL3 [A]

IL1da

I/PHASE CURRENTS

15 min average for IL1 [A]

IL2da

I/PHASE CURRENTS

15 min average for IL2 [A]

IL3da

I/PHASE CURRENTS

15 min average for IL3 [A]

I’L1

I/PHASE CURRENTS

Phase current I’L1 [A]

I’L2

I/PHASE CURRENTS

Phase current I’L2 [A]

I’L3

I/PHASE CURRENTS

Phase current I’L3 [A]

I’L1da

I/PHASE CURRENTS

15 min average for I’L1 [A]

I’L2da

I/PHASE CURRENTS

15 min average for I’L2 [A]

I’L3da

I/PHASE CURRENTS

15 min average for I’L3 [A]

Io

I/SYMMETRIC CURRENTS Primary value of zero sequence/ residual current Io [A]

Io2

I/SYMMETRIC CURRENTS Primary value of zero-sequence/residual current Io2 [A]

IoC

I/SYMMETRIC CURRENTS Calculated Io [A]

I1

I/SYMMETRIC CURRENTS Positive sequence current [A]

I2

I/SYMMETRIC CURRENTS Negative sequence current [A]

I2/I1

I/SYMMETRIC CURRENTS Negative sequence current related to positive sequence current

(for unbalance protection) [%]

I’1

I/SYMMETRIC CURRENTS Positive sequence current [A]

I’2

I/SYMMETRIC CURRENTS Negative sequence current [A]

I’2/I’1

I/SYMMETRIC CURRENTS Negative sequence current related to positive sequence current

(for unbalance protection) [%]

THDIL

I/HARM. DISTORTION

Total harmonic distortion of the mean value of phase currents [%]

THDIL1

I/HARM. DISTORTION

Total harmonic distortion of phase current IL1 [%]

THDIL2

I/HARM. DISTORTION

Total harmonic distortion of phase current IL2 [%]

THDIL3

I/HARM. DISTORTION

Total harmonic distortion of phase current IL3 [%]

THDI’L1

I/HARM. DISTORTION

Total harmonic distortion of phase current I’L1 [%]

THDI’L2

I/HARM. DISTORTION

Total harmonic distortion of phase current I’L2 [%]

THDI’L3

I/HARM. DISTORTION

Total harmonic distortion of phase current I’L3 [%]

Diagram

I/HARMONICS of IL1

Harmonics of phase current IL1 [%] (See Figure 2.16)

Diagram

I/HARMONICS of IL2

Harmonics of phase current IL2 [%] (See Figure 2.16)

Diagram

I/HARMONICS of IL3

Harmonics of phase current IL3 [%] (See Figure 2.16)

Diagram

I/HARMONICS of I’L1

Harmonics of phase current I’L1 [%] (See Figure 2.16)

Diagram

I/HARMONICS of I’L2

Harmonics of phase current I’L2 [%] (See Figure 2.16)

Diagram

I/HARMONICS of I’L3

Harmonics of phase current I’L3 [%] (See Figure 2.16)

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