FIELD: electricity.
SUBSTANCE: invention relates to devices for compensation of capacitance current of ground fault in electric circuits with isolated neutral. Reactor comprises the following components arranged in tank (1) with transformer oil - current transformer (9), magnetic conductor with controlled magnetic gap (3), main winding (6) and secondary windings: signalling one (7) and additional power one (8). Leads of windings and transformer (9) are arranged on external surface of tank (1). In body (24) of current indicator (13) there is a runner (27) arranged, which moves jointly with upper movable core (4). Unit of mechanical braking of magnetic gap controller movement mechanism from upper (22) and lower (23) blocking contacts and stop (28) is introduced, being installed inside tank (1) and fixing core (4) in extreme upper position at the distance from upper cover (10) of tank (1). Blocking contacts (22, 23) are installed in body of current indicator (13). Runner (27) indicates value of reactor inductive current by scale (26). In extreme upper or lower position runner (27) rests against blocking contact (22 or 23). Contacts (22, 23) via terminal box (21) disconnect supply of electric motor (29) of movement mechanism (11).
EFFECT: simplified design and maintenance and increased reliability, and also expanded area of reactor application.
4 dwg
Authors
Dates
2010-06-20—Published
2008-10-13—Filed