Switching system for an on-load tap changer, on-load tap changer and method for switching a tap connection of an on-load tap changer
AssigneeHitachi Energy Ltd
InventorsGeorgi Manev, Todor Kokev, Angel Mihaylov
Life of this patent
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Abstract
A switching system for an on-load tap changer comprises: a Geneva mechanism, wherein the Geneva mechanism comprises: a holder, the holder being fixed relative to a housing; a rotatable ring with a recess, the rotatable ring being supported by the holder and being rotatable relative to the holder; a connector, the connector being rotatable together with the rotatable ring to electrically connect with a tap of the tap changer; and a rotatable driving wheel with a protrusion, the protrusion being coupleable with the recess to rotate the rotatable ring, the driving wheel being arranged inside the rotatable ring.
Claims18
A switching system for an on-load tap changer, comprising:
- a Geneva mechanism, wherein the Geneva mechanism comprises:
- a rotatable ring with a recess, the rotatable ring comprising a current carrier ring and a drive ring being fixed relative to the current carrier ring;
- a connector being rotatable together with the rotatable ring to electrically connect with a tap of the on-load tap changer, the current carrier ring being electrically connected to the connector;
- a rotatable driving wheel with a protrusion, the protrusion being coupleable with the recess to rotate the rotatable ring, the drive ring being rotatable by the driving wheel;
- and
- a holder being fixed relative to a housing, wherein
- the rotatable ring is supported by the holder and being rotatable relative to the holder, and
- the driving wheel is arranged inside the rotatable ring.
A switching system for an on-load tap changer, comprising:
- a Geneva mechanism, wherein the Geneva mechanism comprises:
- a rotatable ring with a recess, the rotatable ring comprising a current carrier ring and a drive ring being fixed relative to the current carrier ring;
- a connector being rotatable together with the rotatable ring to electrically connect with a tap of the on-load tap changer, the current carrier ring being electrically connected to the connector;
- a rotatable driving wheel with a protrusion, the protrusion being coupleable with the recess to rotate the rotatable ring, the drive ring being rotatable by the driving wheel;
- a holder, the holder being fixed relative to a housing, wherein
- the rotatable ring is supported by the holder and being rotatable relative to the holder, and
- the driving wheel is arranged inside the rotatable ring;
- and
- a further Geneva mechanism which corresponds to the Geneva mechanism, wherein the Geneva mechanism and the further Geneva mechanism are arranged axially offset from each other.
An on-load tap changer, comprising:
- a switching system comprising a Geneva mechanism, wherein the Geneva mechanism comprises:
- a rotatable ring with a recess, the rotatable ring comprising a current carrier ring and a drive ring being fixed relative to the current carrier ring;
- a connector being rotatable together with the rotatable ring to electrically connect with a tap of the on-load tap changer, the current carrier ring being electrically connected to the connector;
- a rotatable driving wheel with a protrusion, the protrusion being coupleable with the recess to rotate the rotatable ring, the drive ring being rotatable by the driving wheel;
- and
- a holder being fixed relative to a housing, wherein
- the rotatable ring is supported by the holder and being rotatable relative to the holder, and
- the driving wheel is arranged inside the rotatable ring;
- the housing, the switching system being arranged inside the housing and the housing surrounding the rotatable ring coaxially,
- the tap being fixed to the housing.
Dependencies are inferred from the claim text.