FIELD: electric engineering, possible use in construction of devices for switching between branches of windings belonging to force transformers under load.
SUBSTANCE: three-phased device for switching between branches of windings belonging to transformer under load has body made of dielectric with bottom and lid, contactor, including three-phased contactor mechanisms with commutating and additional contacts, forming groups, in its body, resistors, through which additional contacts are connected to linear outputs of adjusting winding of transformer, mechanism for switching between contactors and immovable contacts positioned on the walls of body for connection to transformer and to selectors of phase branches of transformer windings, while immovable contacts of phase selectors can be connected to phase branches of adjusting winding of transformer. Mechanisms of three-phased contactors are mounted in the same body, and their contact groups are shifted relatively to each other in phase-wise manner along body axis by means of mounting of contact groups of one or two phases on dielectric substrates.
EFFECT: simplified construction, increased operational reliability of three-phased device for switching between branches of windings belonging to transformer under load.
4 cl, 5 dwg
Title | Year | Author | Number |
---|---|---|---|
TRANSFORMER TAP CHANGER | 1994 |
|
RU2091882C1 |
METHOD AND DEVICE FOR TIME CHART CONSTRUCTION FOR SELECTOR AND CONTACTOR OF HIGH-SPEED REGULATOR-UNDER-LOAD (RUL) | 2006 |
|
RU2342673C2 |
METHOD FOR DIAGNOSTICS OF CIRCUITS OF ARC-SUPPRESSING CONTACTS OF REGULATORS UNDER LOAD OF RNTA TYPE | 2006 |
|
RU2321866C1 |
METHOD OF ELIMINATION OF INFLUENCE OF THE INHERITANCE OF SWITCHING A THREE-PHASE VOLTAGE REGULATOR UNDER LOAD TO OSCILLOGRAPHED CONTACTOR CURRENTS AND DEVICE FOR ITS IMPLEMENTATION | 2015 |
|
RU2643925C2 |
STEP SWITCH | 2004 |
|
RU2324994C2 |
SWITCHING DEVICE FOR CONTROL TRANSFORMER, IN PARTICULAR POLARITY SWITCH | 2015 |
|
RU2699820C2 |
DEVICE FOR ADJUSTING VOLTAGE OF TRANSFORMER UNDER LOAD | 0 |
|
SU1095154A1 |
LIFT CONTROL DEVICE | 0 |
|
SU1548149A1 |
DEVICE FOR DIFFERENTIAL PROTECTION OF ADJUSTMENT TRANSFORMER | 0 |
|
SU738039A1 |
INDUCTION-TYPE ON-LOAD STEPPING TAP CHANGER "UVAR" | 1991 |
|
RU2032262C1 |
Authors
Dates
2006-01-10—Published
2001-08-01—Filed