VR101s Single-Phase Voltage Event
Recorder - Features
Software
for Power Distribution Systems International standards define a number
of different power distribution systems, TN or IT.
TN systems: The most
frequently used power distribution systems worldwide are the TN
systems. Three phase power distribution with a common earth
connection back to the supplying transformer.
IT system: The
IT-system (Isolated Terra) is in use in Norway (90%), Belgium
and some other countries. The differentiation lies in the way
the Protective Earth (PE) and the Neutral are treated.
Setup
event parameters
To set up a VR101 event recorder, just enter the event capture limit
parameters on your PC and load them into the recorder. EventView
software and the optical interface cable make it easy. Then plug the
recorder into the outlet you need to test, and leave it — there's no
need to leave a computer hooked up. The compact recorder stores any
voltage event that goes outside your limits.
The VR101 recorder can store up to as many
as 4000 events and a flashing LED tells you when events have been
captured.
Analyze
data on your PC To get data out of the recorder, hook it back up to your computer.
EventView software can download a complete history of the events that
occurred while the recorder was plugged into the receptacle. The
software lets you build a detailed report of sags, swells, transients,
outages and frequency variations with time-stamps and durations.
Your PC communicates to the VR101 through an optical interface cable.
This means the PC and VR101 are insulated from each other for safety.
The event recorder is self-powered by a 7-year lithium battery, so it is
not affected by power outages. Each VR101 Recorder has its own real-time
clock for time-stamping voltage events and is identified by a unique
factory-assigned code. With their clocks and ID codes, multiple
recorders can be placed throughout a facility to give a complete picture
of power quality.
