Atec 2883 User Manual
2883 MIDAS micro
Mobile Insulation Diagnosis & Analysing System
The MIDAS micro 2883 is the smallest and most
compact insulation diagnosis set on the market.
The weight of only 25 kg / 55 lbs and the one box
design makes it the ideal tool for power / dissipation
factor / tan δ and capacitance testing in the field
and in the factory.
State-of-the art electronic design, advanced digital
filtering and sophisticated calculation algorithms
ensure highly stable results even under adverse
conditions.
The three main operating modes offer the user a
choice. For quick and straight-forward
measurements the basic mode is used, where only
the essential information is shown. For advanced
tests such as variable frequency or voltage (tip up)
measurements the guide mode is available. The
user is guided through the measurements with
safety and connection instructions shown on the
colour touch screen. And the advanced mode offers
additional flexibility for special test sequences.
The MIDAS micro 2883 is completed with extensive
safety features. Hand and foot interlock switches,
easily accessible emergency stop button and built
in safety checks ensure safe operation under all
circumstances.
FEATURES AND BENEFITS
Capacitance, dissipation / power factor testing
Compact one-box design with only 25 kg / 55 lb
12 kV high voltage source
Variable frequency 15 – 400 Hz
Accuracy of 0.3% (capacitance) and 1x10
-4
(tan )
Safe operation with interlock, emergency stop, safety
checks and HV ground surveillance
7” color touch screen for easy operation
Three operating modes: basic, guide, advanced
APPLICATIONS
Capacitance and power / dissipation factor testing of:
Power Transformers
Instrument Transformers
Bushings
Capacitors
Circuit Breakers
Surge Arrestors
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ONE BOX – RUGGED AND EASY TO
TRANSPORT
The complete instrument is built in one ruggedized
case and has a total weight of only 25 kg / 55 lb. With
the integrated casters transportation
is convenient and test objects in
remote locations can be reached
easily.
The MIDAS micro 2883 has run
through extensive type testing to
simulate the rough environment a
product can face during its
lifetime. Fulfilling the MIL-STD810G standard, MIDAS micro
2883 assures you the highest
quality and reliability in
operation.
Included are a variety of
accessories all packed in a
robust transportation bag which
can be attached to the case.
The measurement and high voltage
cables are rolled on cable drums which make
connection and storing convenient and quick.
RELIABLE RESULTS - ALWAYS
ccurate measurements in substations can be difficult
because of strong electrical fields generated by high
voltage transmission lines. The MIDAS micro detects
that interference is present and switches to the
appropriate noise suppression mode, if necessary.
State-of-the-art digital signal processing is used to filte
out the interfering signals. This results in stable and
repeatable values under all conditions.
SAFE OPERATION
The MIDAS micro 2883 includes several features that
ensure safety of the personnel and material. It is
equipped with an open ground detection which allows
high voltage to be switched on only when a prope
ground connection has been made to the unit. In
addition to an emergency stop button, the unit is
equipped with an external dead-man type safety switch
which must be held down prior to testing to allow fo
high voltage to be turned on. The warning sound and a
warning lamp bar located on the top side of the display
provide visual and audible warning signals. Additionally
an external optional strobe light can be connected.
THE FEATURES YOU NEED
The instrument includes all the features needed to perform
tests on various high voltage components. The 12 kV
voltage source delivers a clean signal, independent of the
mains. The variable frequency source (15 – 400 Hz)
allows for advanced measurements such as bushing
analysis over a frequency range. A gas filled standard
capacitor is used as an internal reference. This
guarantees repeatable results and long term stability. With
the USB interface and integrated thermal printer, reporting
of results is easy.
QUICKLY TO THE RESULTS YOU WANT
Three operating modes
are built in, to suit your
needs. Use the basic
mode for quick and
straight forward
measurements where
only essential displays
and controls are shown.
Or allow the Guide Mode to
walk you through the
measurements - from basic insulation diagnosis to
advanced tip-up and variable frequency bushing analysis.
The advanced mode offers even greater flexibility for
special test sequences.
THE PERFECT COUPLE FOR TRANSFORMER
TESTING
Combine the MIDAS micro 2883 with the Winding
nalyzer 2293 for an entire test solution on transformers.
With 2293 tests like winding resistance, transformer turns
ratio and magnetic balance measurements can be done
with one single connection. Compatible file formats allo
data exchange between the two units and measurements
results are combined for further analysis or processing.
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