2 pho.std file, 3 eqv.std file, Pho.std – CIRCUTOR AR6 Series User Manual

Page 64: File, Eqv.std, Log.eva, Files

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AR6 portable network analyzer

Page 64 of 69

User Manual

19.2 PHO.STD FILE

This kind of file contains logs of the instantaneous electrical parameters measured by the
analyzer during a network cycle. A photo trip may be caused by:

Manual trip: All data display screens allow a photo to be taken manually using the

PHOTO option of the ACTIONS menu.

Trip due to a photo condition: The trip condition is usually connected to a variable

value.

In a PHOTO.STD file the instrument stores various “photos” made in the same measurement
set of files. In each “photo”, all variables measured by the AR6 are logged instantaneously,
along with one cycle wave shape of all input channels.

The PHO file header has a size of 1,222 bytes and each logging (in 4 wire three-
phase measuring with all the variables selected) occupies 3,478 bytes, for a total of
4,700 bytes

≈ 5 kb

19.3 EQV.STD FILE

This file type contains logs of quality events in any of the 3 voltage channels L1, L2, or L3.
Events detection can be configured to detect.

Voltage sags
Swells
Voltage interruptions

The various events that are detected in the electrical network being analysed are stored in this
file. The following data is stored from each one of the events.

Date of Event: This is the date the event occurred. This value is obtained with a 1 cycle
accuracy.

Event type: The event is stored if it is an interruption, a sag, or a swell in the limits
defined in setup of the AR6. The record indicates the phase in which it occurred,

Duration of the Event: Duration in milliseconds.

Minimum and maximum voltage of the Event: When an interruption or sag is
produced, the minimum RMS½* voltage value obtained during the event is stored. The
maximum value will be saved if the event is a swell.

Mean voltage of the Event: This is the average of RMS½* voltages during the duration
of the transient.

Voltage previous to the Event: The RMS½* voltage value just before the event started.
Wave shape from 2 cycles of the event: The analyzer stores a record of the half cycle
previous to the detection of the event. The record finishes one-half cycles after the event
has finished. This leaves it perfectly delimited, shows its complete course and allows a full
analysis.

The RMS½ Value* is the RMS value of a voltage or current, re-calculated every half cycle, in
accordance with EN 61000-4-30

The EVQ file header has a size of 234 bytes and each log (in 4 wire three-phase
measuring with all the variables selected) occupies 2,094 bytes, for a total of
2,328 bytes

≈ 3 kb


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