FIELD: electric power engineering.
SUBSTANCE: invention can be used in power engineering for protection of transformers against short circuits in its windings. Measuring transducer is made in the form of a cylindrical coil with an inductance coil shifted with rotation axis, shifted axis of which is fixed in bearings so that it is parallel to axes of rods of transformer core and is at equal distance from these axes, at one end of this axis is fixed control lever, and parallel to inductance coil of reacting element through open contacts of control button meter is connected.
EFFECT: high sensitivity of the protection device to turn-to-turn short circuits in windings of a single-phase transformer owing to the possibility of rotating a cylindrical inductance coil of the measuring transducer around its shifted axis.
1 cl, 1 dwg
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