Calculated basic parameters of designing

- Pulse factor - ratio of an RMS value of harmonic components of rectified voltage (current) to the average value of the rectified voltage (current):

- Distortion factor is equal to the ratio of an RMS value of a basic current harmonic to an RMS value of a complete primary winding current of transformer.

- Power factor is equal to ratio of active power witch is carried by first harmonics of primary current and voltage to total power of those harmonics.

The parameters of individual elements of the rectifier are defined by the given operating conditions of a consumer of a direct current and possible anomalous duty of it (emergencies).

The main task of design calculations of the converters is that to definite the correlations enabling to find electrical parameters of the rectifiers, the transformer and also parameters of the filtering, stabilizing devices and regulating system account to the duty of the load, and then to choose these devices under the catalogue or, if it is necessary, to construct them.

Parameters describing operation of rectifiers:

- Average I_TAV, root mean square I_TRMS and maximum I _TM values of a current flowing through a valve under rated duty of load and under possible overloads;

- Peak-inverse voltage of a valve if it is off-state U_RM;

- Peak-positive voltage of valve U_DM (in the case of application of controlled rectifiers).

Parameters of power transformer:

- RMS values of voltage and current of a secondary (rectifier’s) winding of transformer U₂ and I₂;

- RMS value of a current of a primary winding of the transformer I₁;

- Total powers of windings S₁ and S₂ and electrical rating (type power) of the transformer S_T.