The program of training specialists in the direction of Metrology and Information and Technology, the Department of Information and measuring technology NTTU KPI, includes a course on Methods and means of The module of the course Measurement of electrical and magnetic the basic methods of measurement of electrical quantities, structure and operating principles of measuring tehkiki that implement one or another method of measurement. Laboratory work on discipline prvodyatsya to study measurements measuring methods and means of implementing, the acquisition of skills in measuring experiment and obtain izimereny results. The work program is developed on the basis of LaVIEW (Laboratory Virtyal Engineering Workdench - virtualnyhipriborov development environment). This work is devoted to the study of the principle of the acquisition and navykoa with AC compensator implementing the compensation method for measuring alternating current. Imitation, model compensator corresponds fully corresponds to the real existing compensator explanatory variables on the current type K 509. The work consists of two tests: Measurement module and the integrated components of the resistance ac and Measurement module and the components of the complex impedance to alternating current using current transformers. The paper describes a model of the compensator. On the desktop, arranged measuring instruments used in the circuitry of the experiment: two signal generator, frequency counter, the test impedance, nulindikator and in the second experiment a model of the measuring current transformer. All models of measuring instruments as close as possible to real assets. After measuring experiment on the first experience, the estimated impedance of the Z, R active and reactive components of X, the phase angle is determined by the ZX and their error estimation. After the second experiment evaluated the same characteristics as in the first experiment, but with the current transformer error.