Dranetz Xplorer Uživatelská příručka stáhnout pdf (Strana 91)

5-7

CH 5/ Start Menu

Monitoring

modes

(continued)

Long-term Timed Recording, Demand, Energy

: Performing a statistically valid power

quality energy survey requires the capture of a set of basic data over an extended period

of time. PX5 is designed to facilitate long-term monitoring by collecting min/max/avg

data at each predetermined interval in order to perform post-process harmonic and

other events analysis. PX5 is also designed to be left unattended in the field, recording

statistically representative data for long-term analysis. Using the Dranetz

lockable

portable case option or other available enclosures, power quality studies can be carried

out in harsh weather environments.

Continuous Data Logging, Demand, Energy

: This logs the rms and power values once

per second for totally gapless logging. Cyclic triggers are disabled. No waveforms are

recorded under this monitoring mode.

EN50160 Power Quality

: EN50160 monitors and reports Quality of Supply (QOS)

compliance as specified by the EN standard. The seven parameters required by

EN50160 to determine QOS compliance are: Power Frequency, Supply Voltage

Variations, Rapid Voltage Changes, Supply Voltage Unbalance, Harmonic Voltage,

Interharmonic Voltage, and Mains Signalling. A full discussion on EN50160 is found

on Chapter 8 Reports.

Motor Quality

: Automatically sets up the parameters that affect the operation of

motors. Motor parameters include True Power Factor, Horsepower, and Derating

Factor, among others. This setup mode is available in PX5 firmware V2.0 and higher.

In this section

The following topics are covered in this section.

Topic See Page

Current Probe Selection 5-8

Scale Factor Setup 5-10

Circuit Type Selection 5-12

Nominal Values 5-14

Mode of Operation 5-17

Monitoring Mode 5-18

Advanced Options 5-19

Site Name/Memory Card 5-20

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