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Rated: rated current 5A, rated frequency 50Hz。
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There is no direct current, relay initial operating ampere turns AW0=60 + 4.
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When it is used to protect the power transformer with three windings, the operating current can be tuning (AW0=60 within the scope of 3-12A); for the action current minimum setting value, the maximum equilibrium coefficient close to 2.
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When the two winding power transformer or alternator is used, the action current can be determined in the range of 1.55-2A.
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Relay DC bias characteristics, epsilon = f (K), the method can be used to change resistance of the variable resistor plate for continuous adjustment. When the offset coefficient K=0.6, the error of the relative action current of the DC bias magnetic property at the setting position is no more than 18%-20%. The reliability of the relay shall be no less than 1.35.
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3 times the action current, the action time of the differential relay is no more than 0.035s.
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When the converter of a balance winding and the working winding turns number of access in protected areas fault, and the current is equal to the 5a, relay for single-phase power consumption does not exceed 16VA.
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