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6-20 F35 MULTIPLE FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL

METERING CHAPTER 6: ACTUAL VALUES

This menu displays metered values for current and power demand. The "SRC 1" text is replaced by the name programmed

by the user for the associated source (see

SETTINGS  SYSTEM SETUP  SIGNAL SOURCES).

The relay measures (absolute values only) the source demand on each phase and average three phase demand for real,

reactive, and apparent power. These parameters can be monitored to reduce supplier demand penalties or for statistical

metering purposes. Demand calculations are based on the measurement type selected in the

SETTINGS  PRODUCT SETUP

 DEMAND

menu. For each quantity, the relay displays the demand over the most recent demand time interval, the

maximum demand since the last maximum demand reset, and the time and date stamp of this maximum demand value.

Maximum demand quantities can be reset to zero with the

CLEAR RECORDS  CLEAR DEMAND RECORDS command.

6.4.2.9 Frequency metering

ACTUAL VALUES  METERING  SOURCE SRC 1  FREQUENCY

The metered frequency values are displayed in this menu. The "SRC 1" text is replaced by the name programmed by the

user for the associated source (see

SETTINGS  SYSTEM SETUP  SIGNAL SOURCES).

SOURCE FREQUENCY is measured via software-implemented zero-crossing detection of an AC signal. The signal is either a

Clarke transformation of three-phase voltages or currents, auxiliary voltage, or ground current as per source configuration

(see the

SYSTEM SETUP  POWER SYSTEM settings). The signal used for frequency estimation is low-pass filtered. The final

frequency measurement is passed through a validation filter that eliminates false readings due to signal distortions and

transients.



SRC 1 DMD IB MAX:

0.000 A



SRC 1 DMD IB DATE:

2001/07/31 16:30:07



SRC 1 DMD IC:

0.000 A



SRC 1 DMD IC MAX:

0.000 A



SRC 1 DMD IC DATE:

2001/07/31 16:30:07



SRC 1 DMD W:

0.000 W



SRC 1 DMD W MAX:

0.000 W



SRC 1 DMD W DATE:

2001/07/31 16:30:07



SRC 1 DMD VAR:

0.000 var



SRC 1 DMD VAR MAX:

0.000 var



SRC 1 DMD VAR DATE:

2001/07/31 16:30:07



SRC 1 DMD VA:

0.000 VA



SRC 1 DMD VA MAX:

0.000 VA



SRC 1 DMD VA DATE:

2001/07/31 16:30:07

 FREQUENCY

 SRC 1



SRC 1 FREQUENCY:

0.00 Hz

Frequency	50/60 Hz
Device Function	Protection Relay
Communication Protocols	DNP3
Type	Digital Protection Relay
Current Rating	5 A
Protection Functions	Overcurrent

GE F35 User Manual

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GE F35 Specifications

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