2.3.1 RS-232C Serial Port
The Serial port will operate at various baud rates. The connection to it is limited by this speed.
Check baud rate using the System Configuration screen.
2.3.2 IEEE-488 GPIB
The IEEE-488 GPIB port will allow a faster baud rate and connectivity to the Unit. This port is
recommended for connection to the unit except when DFR streaming or EMTP files need to be
controlled in real-time.
2.3.3 Ethernet 10 BaseT
The Ethernet port will allow the fastest method for DFR playback streaming in real-time.
Firmware updates use this port for downloading purposes, since it is the most effective and
efficient communication. Simply connect the port to the networked PC and download accordingly.
2.3.4 USB Port
The USB ports are used for communication to external devices, such as an optional I/O interface
box.
2.3.5 Printer Port
The Printer port is for future use and is not available at this time.
2.4
Error Reporting
There are over 300 possible error messages that the operator may witness. Some have to do
with manual operation, some have to do with automated operation, and some have to do with unit
errors or overload situations. For example, errors will be reported when out-of-range values are
entered. The error screen will display the range for that value to ensure a value is entered that
resides within the tolerance of the range.
2.5
Advanced Visual Test Software (AVTS)
AVTS is external software specifically constructed to work with Megger relay test equipment
(MPRT and Pulsar). The software contains the necessary steps to perform specific relay tests. It
is designed to perform manual or automated relay testing for distance (impedance), over-current,
differential, frequency, voltage, synchronous, power and reclose relays. Also, AVTS is
specifically designed to perform DFR testing and playback including GPS synchronized end-to-
end tests. The MPRT comes with a Basic version of AVTS, while the Advanced and Professional
versions are optional.
3.0
OPERATING PROCEDURES
This section describes basic operating procedures for using the multiple output modules of the
unit for such applications as paralleling current outputs, conducting harmonic restraint tests,
series of potential sources to provide higher than rated potential, testing over/under voltage relays
and forming three phase voltage outputs.
3.1
Touch View Interface
The Touch View Interface (TVI) is used to operate the MPRT manually. It is controlled via a
touch screen and a control knob. The touch screen allows the operator to change a parameter by
simply touching the location for the value. Then, a keypad can be used to change the value or
the operator may use the knob to modify the value.
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