| 摘要 |
FIELD: electric engineering, possible use as device for improving power supply of consumers, requiring certain quality of powering voltage. ^ SUBSTANCE: technological level of invention is determined by known technical solutions in form of adjusting devices, mounted between alternating voltage source and load, having requirements for power voltage quality, containing transformer stabilizers of alternating voltage, in which transformer windings are switched by means of controlled elements of commutators. In accordance to invention, primary winding of transformer is made of two portions, which, as well as triple quantizing of voltage by amplitude level, improves precision of stabilization of voltage due to increased discontinuousness of its adjustment. Also, into bridge commutator, two parallel branches of which are made on controllable key elements, third similar branch is inserted, middle point of which is connected to middle point of primary transformer winding. Controlling outputs of twelve controlled key elements - power keys, in particular, opposite-parallel enabled thyristors, form twelve controlling inputs of bridge commutator, which are connected, respectively, to twelve outputs of inserted controlling block, structure of which is new and original. The same pertains to connections with voltage indicator inserted into device at load and power block, respectively. ^ EFFECT: possible providing of power supply to consumers with possible correction of its quality coefficients: given value of amplitude, effective or average voltage value; absence of various power surges and drops; presence in the curve of generated voltage of normalized pulses, value of which does not facilitate loss of workability or decrease of functional properties of powered equipment. ^ 2 cl, 6 dwg |
