FIELD: electric measurement technology. SUBSTANCE: method involves separate measurement of parameters by reading out turn number in frequency- independent state of transformer bridge equilibrium. Supply voltage across comparison port is measured at preset frequency like quotient of complex admittance of measurement port and complex admittance of comparison port. To this end turn number of adjustable ratio ports is calculated using turn-number readings taken from two additional adjustable ratio ports. A number of repeated balances of bridge are made at preset measurement frequencies and also with respect to its active and reactive components relative to supply voltage across measurement port obtained during preceding set of repeated balances. Parameters being measured are separately read out in terms of turn number of main adjustable ratio ports. EFFECT: enhanced measurement accuracy. 1 dwg
