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
Produktspecifikationer
| Varumärke: | Megger |
| Kategori: | mätning |
| Modell: | TTR300 |
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