Static Frequency Converters
Static frequency converter is a state of the art three phase frequency converter specially designed for testing all types of power and distribution transformers. SFC equipped with customized & highly efficient control & software along with filtration circuitry provides high power quality output by eliminating high frequency distortions produced by fast switching semi-conductors (IGBTs).
SFC replaces 50 or 60 Hz motor-generator set, high frequency motor-generator set, and their respective voltage regulators and switchgears conventionally used for testing transformers. The compactness of SFC makes it suitable for use in mobile test facilities as well which was practically not possible with MG Sets. Additionally, it saves significant testing time as changing connections from one MG Set to another gets eliminated and also saves significant maintenance time required for regular maintenance of MG Sets.
FEATURES:
- Frequency selectable measurements (independent of each other).
- Power range from 20 kVA up to 10 MVA.
- High frequency noise reduction using special filter and PWM-technology.
- Harmonic current injection to test special transformers which are loaded with harmonics.
- Options of both Input and Output side active converters.
- EMI (Electro Magnetic Interference) Filters in the input and Sine Filter in the output.
- Tests according to IEC/ANSI for dry and oil Transformers from 250 kVA up to 500 MVA.
- AC source for applied HV-tests.
- Special filtering and modulation.
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