Megger TTR300 Bruksanvisning
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DESCRIPTION
The TTR300 Series of three-phase transformer turns ratio
test sets ar designed to measur the turns ratio of power,e e
instrument, and distribution transformers in a substation or
manufacturing environment. A rugged and robust design
makes these instruments well suited for use in a variety of
harsh environments. The units come equipped with
specially designed leads which provide the necessary
exibility needed in cold weather.
The TTR300 Series are ideal for use by power transformer
manufacturers. Their unique testing procedures and
storage capability allows an operator to set up and test
dif
cult three-phase transfor
mers (with multiple tap
changers and bushing CTs) in a fraction of the time than it
used to take with other TTRs. This test also includes a
pass/fail limit of individual ratios.
The TTR300 Series also measure the phase deviation of the
transformer primary versus secondary. This quickly
indicates pr
oblems in the transformer such as partial
shorted turns and core faults. This measurement is also
useful in verifying phase errors in all types of PTs and CTs.
Each unit comes equipped with a remote-control switch
for single person testing. This allows the operator to test
transformers with LTCs very quickly.
The Series consists of four instruments:
TTR300
The TTR300 is designed to be completely remote
controlled via a PC running PowerDB LITE (included) or
PowerDB (full version) PC software applications. The
TTR300 is eld upgradeable to the TTR310, TTR320 or
TTR330.
Some of the features of the TTR300 are:
■Field upgradeable to a model TTR310, TTR320 or
TTR330 without compromise to calibration
■Built-in capability for storing test r
esults into internal
memory in an open XML data for
mat
■Quickly download test results via RS-232 serial port
TTR
®
300 Series
3-Phase Transformer Turns Ratio Test Sets
■
Stand-alone or remote-control operation
■
Accurately measures ratio, phase deviation
a
nd exciting current
■
Field upgradeable without compromise to
calibration
■
Built-in capability for storing and downloading
test results in an XML format, via RS-232,
Ethernet or USB ports (depending on model)
■
Works in the presence of high interference/
high voltage
■
Highest ratio measurement (45,000:1);
highest accuracy (0.1%)
■
Displays % error vs. name plate with pass/fail
limits
TTR
®
300 Series
Three-Phase Transformer Turns Ratio Test Sets
P r e l i m i n a r y
TTR330 shown
TTR300
—
r
emote contr
olled “black box” unit
TTR
®
300 Series
T
hree-Phase Transformer Turns Ratio Test Sets
P r e l i m i n a r y
T
he TTR320 is “eld upgradeable” to a TTR330 which will
not aect calibration.
T
he TTR320 includes the following features:
■F
ully automatic operation (stand-alone or remote-
control)
■Seamless interface to optional PowerDB software
■F
ield upgradeable to a model TTR330 without
compromise to calibration
■Graphical User Interface allows for automated setup and
control through easy-to-read ICON based screens
■Built-in capability for storing test results, in an open
XML format, to either internal memory or to an external
USB storage device
■Built-in RS-232 port and optional ther
mal spool-paper
printer allows for printing of test results, while in the
eld, and without the use of an external computer
■5.7” VGA bright color display
TTR310 —text-based LCD interface unit
TTR310
This unit features an easy-to-read, high-contrast LCD
which can be seen in bright sunlight and provides the
user interface for instrument set-up and test operation. The
unit comes complete with the software application,
PowerDB LITE.
The TTR310 has the ability to store test results, upload
results to a PC (via RS232 serial port), and/or print them
in the eld via optional thermal paper printer, without the
use of an external computer.
Some of the features of the TTR310 consist of:
■Fully automatic operation (either stand-alone or
remote-control)
■Field upgradeable to a TTR330 or TTR320 without
compromise to calibration
■Built-in RS232 serial port and optional printer allows for
printing of test results, while in the eld, and without
the use of an external computer
■Built-in capability for storing test results into internal
memory in an open XML data format
TTR320
The TTR320 features a high contrast bright 5.7” full VGA
color display can be seen in direct sunlight. The
instrument employs a full QWERTY keyboard for entering
nameplate-type information. Communications ports are
provided in the form of RS-232, USB and Ethernet ports for
easy on-board printing, storage, and downloading of test
r
esults.
Also, with a simple interface to PowerDB LITE PC software
application (included), the user can perfor
m data analysis
and trending of results.
TTR320 —graphical ICON based user interface unit
TTR330 shown testing a pad mount three-phase transformer
TTR330
The TTR330 oers a new user interface which allows the
operator to interact with the PowerDB ONBOARD
software system via full QWERTY and navigation keypads
as displayed on an 8.4” VGA bright-color screen. One of
the primary benets of this interface is that it displays the
actual test form on the screen.
Other primary features of the TTR330 include three
communications ports (two USB, one Ethernet). The USB
“host” ports can be used for connecting directly to an
optional printer (to print full size 8.5” x 11” completed test
forms) and for data storage to a USB memory device (for
later printing, analysis, archiving, and/or trending). The
Ether
net port allows the TTR330 to inter
face (on a bi-
directional basis) directly to a PC. These two advanced
features include “remote control” (of the TTR330 during
testing) and the allowance for the user to customize their
own test forms.
P
owerDB™ ONBOARD Acceptance & Maintenance
Test Data Management Software (Model TTR330
only)
The “PowerDB ONBOARD” logo means PowerDB
s
oftware is running on a computer embedded within the
T
TR330. This powerful feature provides the TTR330 with
a common “User Interface” to minimize operator training
and provides a seamless interface to the full PowerDB
(PC version) application.
Easy-to-read on-screen test forms provide the user
interface for instrument set-up and test operation. Results
a
re displayed against pass/fail nameplate limits and can be
stored (either internally or to a USB storage device) in an
open XML data format.
The ONBOARD software also maintains a historical data
le so that, while in the eld, current and past results can
be analyzed, compar
ed, and displayed in trend charts
without the need of an external computer. An 8.5” x 11”
test form can also be printed in the eld via an optional
USB printer, and without the use of an external computer.
Built-in Memory
The TTRs come equipped with sucient internal memory
to store test results. The outcome of the results are based
on the model:
TTR300: stores up to 200 three-phase test results in the
eld for later retrieval, or download data to a PC for
archiving, analysis, trending and/or printing.
TTR310: stores up to 200 three-phase test results in the
eld for later retrieval. Test results can be printed on an
optional printer (using thermal spool paper) whenever a
hard copy is desired, or the data can be downloaded to a
PC for archiving, analysis, trending, and/or printing. The
system software allows entry of the transformer
alphanumeric serial number, transformer type and tap
infor
mation for each test performed.
TTR320: stores over 1000 test results in the eld for later
retrieval. Test results can be printed on an optional printer
(using ther
mal spool paper) whenever a hard copy is
desir
ed, or the data can later be downloaded to a PC for
archiving, analysis, trending, and/or printing. Identication
of individual test readings is also easily done. The system
software allows entry of the transformer alphanumeric
serial number
, transformer type and tap information for
each test performed.
TTR330: stores over 1000 test results in the eld for later
retrieval. Test results can be printed on an optional in-lid
printer (using 8.5” x 11” thermal paper) whenever a hard
copy is desir
ed, or the data can later be downloaded to a
PC for archiving, analysis and/or printing. Identication of
individual test readings is also easily done. The system
softwar
e allows entry of the transfor
mer alphanumeric
serial number, transformer type and tap information for
each test per
for
med.
TTR
®
300 Series
T
hree-Phase Transformer Turns Ratio Test Sets
T
he TTR330 oers the following:
■Fully automatic operation (stand-alone or remote-
control) with user interface via on-screen customizable
test forms
■Integrated PowerDB ONBOARD allows for data analysis
and trending while in the eld without the use of an
external computer
■Built-in USB port and optional USB printer allows for
8.5”x 11” test forms printing without the use of a laptop
■Built-in capability for storing test results, in an open
X
ML format, to either internal memory or to an external
USB storage device
■Full 8.4” VGA color display
PowerDB LITE™ Acceptance & Maintenance
Test Data Management Software
All four units in the TTR300 Series come complete, at no
extra charge, with PowerDB LITE (a new powerful PC
Windows
®
based software program). PowerDB LITE allows
the operator to completely program a test routine, in
advance, for a transformer, save it under the transformer
ID number, and then recall it in the futur as re equired.
Testing on the TTRs can be per med in a remote controlfor
manner, via PowerDB LITE. Once testing is complete on
all of the instruments, results ar easily downloaded to thee
external PC in an “open” XML data format. The
instruments’ internal memory also maintains historical data-
les so that, through interface to PowerDB LITE, current
and past results can be archived, compared, analyzed,
displayed in trend charts, and compiled into Test Reports.
Contr emote-contr fersol of the TTRs in this r ol manner of
the following benets:
■
Easy to use interface between operator and instrument.
■
Problems such as PASS/FAIL are agged visually using a
RED highlight.
■
Easily r
ecall transformer setups fr
om a custom settings
menu.
■
Quickly download r
esults to the PC for completing a
transformer test report.
PowerDB™ (full version) Acceptance &
Maintenance T
est Data Management Software
As an enhancement over the PowerDB LITE softwar
e
(described above), a powerful “full version” PowerDB
softwar
e is also available on the TTR300 Series as an
option. PowerDB LITE and the internal architecture of the
TTR Series has a seamless interface to the full version
PowerDB, PC based software application.
Multiple data les (fr
om multiple instruments) can
automatically be fed to PowerDB in order to generate
comprehensive asset analysis in the form of Reports
containing table of contents, test data sheets, commentary,
and deciency summaries.
Electrical utilities who have invested in sophisticated
Computerized Maintenance Management Systems (CMMS)
can easily link with the PowerDB software because it
works with a number of systems.
P r e l i m i n a r y
Produktspecifikationer
| Varumärke: | Megger |
| Kategori: | mätning |
| Modell: | TTR300 |
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