ПрАТ "Запорізький електроапаратний завод"

They have integrated motor exciter, two-zone frequency rotate regulation automatic system. Electric drives are produced in reversible and irreversible fulfillment. The reverse is executed by motor armature current. Electric drives for boring rigs have fulfillment with non-operative rotate direction reverse by means of excitation current direction changing.

Main electric drive types are given in Table1.                                                                     

 Table 1

Conditional shorthand structure:

TPE – X₁X₁X₁X₁/X₂X₂X₂X₂ – X₃X₃X₃ – X₄X₄ – X₅X₆X₆

T – input alternating three-phase voltage;

P – output direct voltage;

E – natural air cooling;

X₁ – thyristor current group that provides motor rotate direction “FORWARD”;

X₂ – thyristor current group that provides motor rotate direction “BACK” or recuperative motor braking;

X₃ – rated output voltage, V;

X₄ – control system execution:

M – modernized execution with analog operation system;

MP – modernized execution with microprocessor operational system;

X₅ – climate fulfillment according to the GOST 15150;

X₆ – placement category according to the GOST 15150.

TPE-250-460 external connection scheme is given on the Picture 1.

Picture 1. TPE-250-460 external connections scheme