3. Principle of transformer bridges
Toroidal magnetic circuit transformers are highly accurate components that can be produced at relatively low cost. For this reason, they are now widely used in AC voltage, current and impedance metrology. Further information on their use can be found at 5 .
3.1 Potential transformer bridge
The schematic diagram of this type of bridge is shown...
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Principle of transformer bridges
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The specifications of some synchronous detectors are given in table 1 .
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