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Partial-discharge measurement of a high-voltage transformer
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Test device and method for testing the electric strength of high-voltage cables
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ELECTRONIC COVER
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Capacitance and loss-factor measuring bridge
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AC comparator for current transformer testing - has primary and secondary windings around triple core assembly
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Transformer magnetising and leakage current test circuit - uses compensated transformer against which transformer is tested by comparator circuit
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Self balancing measuring circuit - enables comparison of voltage and current convertors with different conversion ratios
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Transducer test appts. for transformation errors - has phase derived from standard transducer and other voltage including ninety degree shift
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Current or voltage transformer testing device - measures ratio error and phase displacement angle by compensation method
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