Atec Megger-Delta-4000 Series - Manual (Page 2)

DELTA4000 Series
12 kV Insulation Diagnostic System
FEATURES AND BENEFITS
Industry-Leading Performance and Accuracy
n Generates its own test signal – resulting in accurate and
clean measurements even in the most severe conditions and
in the event power is required from a portable generator.
n High noise suppression and advanced signal acquisition
circuitry can handle up to 15 mA interference current or
a signal to noise ratio of up to 1:20 resulting in extremely
accurate and clean measurements even in the most severe
conditions.
n Industry leading frequency range (1-500Hz) reveals
details in the insulation characteristics that are not possible
to detect with other test sets.
n Intelligent temperature correction (patent pending)
allows the user to estimate the actual temperature
dependence of the test object by measuring tan delta over
a frequency range. Mathematically calculating accurate
individual temperature correction results in a more accurate
measurement of the insulating material’s condition.
n Automatic voltage dependence detection (patent
pending) Various high voltage components may have a
voltage dependence where tip-up testing is recommended
(i.e. the dissipation factor is pending test voltage). The
DELTA4000 Series has a patented method for detecting
voltage dependence and gives the user an alarm, suggesting
additional tests should be performed at different voltage
levels.
n Fast test time - Dynamic noise suppression minimizes
actual test time.
Industry’s Lightest and Most Rugged
n Industry’s lightest two-piece design, weighing
14 kg + 22 kg saves on effort, space, and shipping costs.
n
Designed for various work environments: in the field; in
a test van; in a manufacturing facility; or in a repair facility.
n Units have performed successful testing in the world’s
most extreme conditions including: high temperatures,
low temperatures, high elevations, high noise, and high
humidity.
Software Package — PowerDB Advanced
n Automatic and manual operation – provides fully
automatic operation for tan delta as well as excitation
current and tip-up testing. The user simply selects the test
object and the unit will automatically run the complete test
and report the results back to the test form. The DELTA4000
Series can also be used with Delta Control software in a
manual testing mode, where the operator has full control to
set the test parameters including the possibility to manually
adjust the output voltage and measure output current and
otuput voltage continuously.
n Easy to save and retrieve data – information will be saved
in an XML file with all historical data. This allows the user to
view previous year’s test sheet or trend specific test points.
n Simple, intuitive, easy-to-use interface between operator
and instrument.
n Suspect data points are flagged visually with a red
highlight.
n Capability to trend a specific asset over time.
n
Easily recall transformer setups from the settings menu.
n
Ability to interface with other transformer test units
such as MLR10 (leakage reactance, capacitance banks),
TTR-series (transformer turns ratio), MTO210 (winding
resistance), MIT/S1-series (DC insulation), MCT-series
(CT measurements).
Optional Database Software - PowerDB Pro
A comprehensive Acceptance and Maintenance Test
Data Management Software and database that allows you
synchronize information from all of your different types of
instruments into a single database, trend test results to similar
equipment and the ability to design or modify test forms.
n Easily import your historical data points even from other
manufacturers’ databases.
n Analysis and trending - As an immediate on-site
assessment the user can compare the latest measurements
with stored data and see how the insulation values
may have changed over time (trending). Comparison of
measurements captured at different voltages and different
frequencies can also be observed. Pass/Fail criteria can
be set to immediately identify a possible problem in your
insulation.
PREMIUM SUPPORT
Region dependent; please contact your nearest Megger Sales
Representative for details. Available in 1-yr, 3-yr, and 5-yr
agreements.
n Extended product warranty protects your unit beyond the
standard manufacturer’s warranty.
n Loaner units and loaner accessories provide guaranteed
reliability. Loaners are delivered within 1-2 business days.
n Field application support provided by former utility
engineers and PhD’s who have vast substation and
transformer experience to guide you through your testing
procedures and answer your questions.
n
Software support and guidance through installation,
importing older data, customizing forms, comparing results,
and data trending.
n Annual onsite training on the equipment software, theory,
field testing, data analysis, and PowerDB. Training can be
provided on-site or at any of the Megger facilities.