OVERVIEW
The system covers a
wide load range and
test frequencies
above 100Hz,
prevents saturation
of the instrument
transformer cores.
Therefore testing
with installed
instrument
transformers and
cable connections is
possible.
Frequency is
adjustable between
15Hz and 250Hz. The
testing can be
accompanied by
partial discharge
measurement.
Discharges can cause
high transient
impulses. Damping
elements and a
number of surge
arrestors are
installed to improve
the withstand
capability of the
system.
Several
test sets are
available as:
- 540kV 10A Test Set
- 800kV 6A Test Set
The design
components of the
test system are :
- Reactor Coils
- Exciting
Transformer
- Frequency
Converter
- Control Unit /
Voltage Measurement
- Damping Impedances
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