Dranetz Visa Betriebsanweisung PDF herunterladen (Seite 27)

1-13

CH 1/ Getting Started

Monitoring

capacity

The PowerVisa can monitor the following power configurations:

While monitoring any of the above configurations, the PowerVisa can also be

connected to monitor neutral to ground voltage and neutral or ground current.

Automatic

setup, Wizard

setup, or

Advanced setup

Setup is a configuration of parameter thresholds that control the data recorded by the

PowerVisa. Users may perform instrument setup in three ways: via Automatic Setup

which utilizes auto-configured settings and allows users to proceed directly with data

monitoring; via Wizard Setup which follows a step-by-step sequence where users go

through a series of circuit setup screens; or via Advanced setup which allows users to

modify trigger parameters and intervals or tweak threshold settings under the Advanced

Options.

Trend

Users can generate plots for all journalled data combined with min/max recordings of

that parameter. Most journal parameters have multiple channels to plot.

Reports

Users have two options on how to view QOS compliance reports.

EN50160 displays statistical reports on QOS compliance based on an analysis of the

voltage as per requirements of the EN50160 standard. Compliance data is presented in

bar charts, statistical tables, and graphs. Statistical data is calculated on the required

parameters specified in EN50160 over one week interval to produce a PASS/FAIL

decision of QOS compliance.

Status presents a report summary for Standard PQ, EN50160, and Motor Quality

parameters via the annunciator panel. The panel is color coded such that green indicates

the parameter is within limits, yellow means it is moderately out of limits, while red

signifies it is severely out of limits. Unlike the EN50160 which reports on QOS

compliance on a weekly basis, Status monitors compliance continuously. There is also

the option to view a parameter in more detail i.e. display its data plot, threshold values,

or edit parameter/channel settings.

Data Card

PowerVisa supports the use of Compact Flash data cards with AT LEAST 32MB

storage capacity. The user replaceable data card is used as primary storage for data.

Data monitoring CANNOT proceed without the data card. The PowerVisa is designed

to accommodate the Compact Flash card in its native format, and does not require the

use of a PC card adapter. However, a PC card adapter can be used to read the data into

a laptop or other computer with a PC card slot.

• Single Phase • 3 Phase 2-Watt Meter Delta

• Split Phase • Generic

• 3 Phase Delta • 2 1/2 Element without V

• 3 Phase Wye • 2 1/2 Element without V

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