FIELD: usage of information processing equipment in electromechanics, determination of parameters of longitudinal and lateral links of equivalent circuits of mother articles.
SUBSTANCE: while conducting no-load condition under which secondary winding is open, primary winding of transformer is energized by power supply source. Then arrays of momentary values of input current 
input voltage 
output voltage 
for one and same moments of time 
are recorded, where 
is number of divisions in period T; 
is discreteness of array of momentary values of input voltage 
output voltage 
output current 
with known frequency of power supply source, number of turns of primary and secondary windings of transformer. Thereafter array of momentary values of output voltage 
reduced to array of momentary values of input voltage is formed. Arrays of momentary values of voltage across first longitudinal resistor 
arrays of momentary values of active power 
across first longitudinal resistor and 
across resistor of lateral link are formed which determine correspondingly active powers 
and 
average for given period. Active values of current are determined by momentary values of intut current 
. Points of joint decision 
and 
are formed. Volt-ampere characteristics are constructed and areas 
and 
are found and used to find corresponding reactive power 
across first longitudinal resistor and reactive power 
across resistor of lateral link. Thereupon parameters of equivalent circuit are established such as first longitudinal active and reactive resistors, active and reactive resistors of lateral link of equivalent circuit of transformer.
EFFECT: simplified approach and increased precision of determination of parameters of equivalent circuit.
3 dwg, 2 tbl
