The 2293 is an automatic winding analyser, optimized for three
phase power and distribution transformer measurements.
It uniquely combines winding resistance measurement, turns
ratio, dynamic resistance measurement, core demagnetization,
transformer type detection, magnetic balance, short circuit
impedance and heat run test (temperature rise and cooling
curve) in the fastest, single instrument solution in the market.
A simple “one-time-connection” system drastically reduces
measuring time: once connected all tests can be performed in
a row without any reconnection.
The built-in, simultaneous winding magnetization method
guarantees fast and reliable resistance measurements. Stable
measurements are reached even on large power transformers
with delta windings on the low voltage side. A progressive
method for measuring transformer turns ratio, guarantees
results closer to the nominal ratio even in large power
transformers with tertiary windings.
MULTI-PURPOSE AUTOMATIC POWER TRANSFORMER WINDING ANALYSER
Multi-purpose winding analyser - all in one solution.
Simple
“
one-time connection
“ system
.
Unique simultaneous winding magnetization method for
winding resistance measurements.
Touchscreen interface with full graphical test visualization.
Dynamic resistance for tap charger diagnosis, automatic tap
changer control device.
Advanced procedure for turns ratio and phase displacement
measurement.
Demagnetization function.
Automatic magnetic balance test.
Short circuit impedance at reduced current.
One device for transformer winding resistance, turns ratio,
arbitrary phase, vector group check, demagnetization,
dynamic resistance, short circuit impedance, magnetic
balance and heat run test (heat rise and cooling curve).
Once connected, can perform all tests in all phases on both
windings.
More compact and lightweight solution in comparison to
traditional equipment with up to 100A test current.
Easy operation.
Fully automated twinding resistance and tap changer test.
Measurement also on non-regular phase displacements
(arbitrary phase shifted transformers).
Transformer is returned to a demagnetized status after
winding resistance measurement or before putting the
transformer into service.
Magnetic core fault detection.
Mechanical damage detection.
FEATURES
ADVANTAGES
The 2293 is a valuable tool for factory test, acceptance test
and regular maintenance on:
■
Power and distribution transformers
■
All types of HV windings
APPLICATIONS
Dynamic resistance measurement on tap changer, performs an
efficient and reliable check of the transformer tap changer.
The demagnetization function eliminates the magnetic
remanence, which can cause faulty measurements, high inrush
currents and incorrect operation of protective relays.
Short circuit impedance test, at reduced current, helps to
locate mechanical damages. In addition, the magnetic balance
test can detect faults in the transformer magnetic core.
Personnel safety is guaranteed by an emergency button, as
well as a state-of-the-art active discharge circuit, and a caution
indicator that continues to operate even without line power.
An optional interlock connector can be ordered.
32A and 18 kg multi-purpose winding analyser. Once connected, all tests are done without reconnection.
2
3
Powerful & Compact with
“
One-Time Connection
“