CN202523596U

CN202523596U - Converter

Info

Publication number: CN202523596U
Application number: CN2011204878939U
Authority: CN
Inventors: A·赖特; T·舒斯特; M·利皮尼斯基
Original assignee: Maschinenfabrik Reinhausen GmbH
Current assignee: Maschinenfabrik Reinhausen GmbH; Scheubeck GmbH and Co
Priority date: 2010-11-30
Filing date: 2011-11-30
Publication date: 2012-11-07
Anticipated expiration: 2021-11-30
Also published as: DE202010016211U1

Abstract

The utility model relates to a converter used for powerlessly switching different winding taps on an adjustable transformer. According to the utility model, the converter used for the adjustable former has multiple contact bars which are parallel to each other, separated and circularly set to around a common longitudinal axis; a contact unit used for connecting the contact bars which can rotationally move against to the contact bars and fixed in a switch shaft; at least two fixed elements horizontally isolated each other, and these fixed elements connect the multiple contact bars and the switch shaft. The transportation insurance device settings configured angular on the converter, the transportation insurance device is detachably connected to the fixed elements of the converter on one end, and the other free end cannot rotationally connected against to the switch shaft. Thereby, effectively prohibit unintentional switching between the two adjacent fixed contacts in transport or during assembly.

Description

Transducer

Technical field

The utility model relates to a kind of transducer that inactivity ground switches between the different tappings of adjustable transformer that is used for.

Background technology

The on load tap changer of interruptedly under load, realizing with the switching nothing is opposite, and corresponding adjustable transformer must begin before disconnection fully and only switch just to allow to reclose after the end fully in switching in the transducer that is provided for switching.In known systems,, between rotary transducer and orthoscopic transducer, distinguish to some extent according to the mechanical realization of transducer.If hereinafter is mentioned transducer, just only be meant and describe rotary transducer.At this, the rotary transducer of same type is made up of around the contact rod of the longitudinal central axis line setting of central authorities and the switching shaft of central authorities a plurality of circular ground basically, on this switching shaft, is fixed with contact making device.Contact making device is used to make two preferred contact rods adjacent one another are to electrically contact conducting, so that cause the conversion ratio of the qualification of the transformer that is connected with switching device shifter thus.

For fixing contact rod and in order to admit switching shaft in rotatable motion ground, the retaining element of known circular, these retaining elements are configured to planar or board-like.Being received in the vertical hole of passing retaining element of rotatable motion fixing or switching shaft of contact rod realized.Be provided with additional hole in addition, these holes are idle and allow to be included in insulating oil in the transducer and on the direction of longitudinal central axis line, pass retaining element and flow under the confined state of switching device shifter.

Usually will offer the user by the product that the known transducer of prior art is accomplished as assembling and pack in the adjustable transformer that exists by this user scene.For the arrangement of equipped with switches-adjustable transformer what this had main meaning is, should in which concrete position of connecting of preferred adjacent fixed contact, be contained in the adjustable transformer that is by producer's predefined transducer and joins with this adjustable transformer coupling.Why like this this is, particularly because subsidiary operational manual and other the file that is used for mounting converter from this concrete switching position proof with explain that each installation step can easily implement.Therefore transducer is placed this switching position predefined and that require at operational manual when the factory inspection and acceptance and then packs and send to the user.But can not guarantee that in the transducer known transducer is also sent to the user in the switching position of this definition, the user does not switch to other switching position with being wanting in consideration fully when assembling in other words with enough modes by prior art.

The utility model content

Set out thus; The purpose of the utility model is to provide a kind of transducer; In this transducer, guarantee in transportation during transducer and when transducer being assembled in the adjustable transformer, undesired hand-off process can not take place by the user with enough modes, this hand-off process cause with by the different switching position of the predefined switching position of producer.

Said purpose realizes through a kind of transducer with following characteristic.

Total design by the utility model is; On transducer, be provided with one dismountable, with switching shaft with can not the fixing transportation insurance device of counterrotating mode, so that forbid the switching unintentionally between two adjacent fixed contacts between transportation or erecting stage thus effectively.According to the utility model; Advise a kind of transportation insurance device that is configured to dihedral for this reason; This transportation insurance device removably is connected with the retaining element of transducer in one end thereof, and another freely and preferable configuration become the end of fork-shaped can not admit switching shaft with the relative rotation.

The transducer that is used for adjustable transformer according to the utility model has: a plurality of parallel, isolated and contact rods that be provided with around a common longitudinal central axis line circularly; With respect to the rotatable motion of contact rod and be fixed on a contact making device on the switching shaft, be used to connect contact rod; At least two flatly isolated each other retaining elements, these retaining elements are admitted said a plurality of contact rod and said switching shaft; It is characterized in that: said transducer be provided with one be configured to dihedral the transportation insurance device, the first end of this transportation insurance device removably be fixed on the retaining element and the second end of this transportation insurance device can not be with the relative rotation fixing switching shaft.

According to a kind of preferred form of implementation of the utility model, the fixture of transportation insurance device on retaining element is configured to dismountable screw connection.

According to a kind of preferred form of implementation of the utility model, the transportation insurance device for can not be with the relative rotation fixedly switching shaft and have one be configured to fork-shaped the zone, this zone shape is admitted switching shaft sealedly.

A kind of preferred form of implementation according to the utility model; Switching shaft has a transverse holes; This transverse holes is arranged in the extended line in another hole of on the second end of transportation insurance device, making, thereby through inserting bolt, switching shaft can not be fixed thus with the relative rotation.

Description of drawings

Should combine accompanying drawing also will illustrate in greater detail the utility model according to embodiment below.

Wherein:

Fig. 1 illustrates an end view by the known transducer of prior art,

Fig. 2 illustrates a partial enlarged view by the side direction of the part of the transducer of the utility model.

Reference numerals list

Embodiment

Fig. 1 illustrates an end view by the known transducer 1 of prior art.Transducer 1 has two retaining elements that essentially horizontally are spaced apart from each other 3.1 and 3.2, between these two retaining elements, is provided with the contact rod 4 of a plurality of that extend along the longitudinal direction, setting around common longitudinal central axis line and conductions that be configured to tubulose.In the contact rod 4 of these preferred hollows each all forms a fixed contact and is connected via the corresponding tapping of its electrical connecting wire 5 separately with a same in the figure unshowned adjustable transformer at this, and said electrical connecting wire starts from clearly that reason only illustrates in the Background Region of transducer 1.In addition, between retaining element 3.1 and 3.2, medially be provided with the switching shaft 6 of central authorities in the inside of said a plurality of contact rods 4, on this switching shaft, be fixed with the contact making device 7 of a plurality of same configuration, these contact making devices form movable contact system.This a plurality of movable, be used to make two preferred adjacent each other fixing contact rods 4 to electrically contact conducting by the contact making device 7 of switching shaft 6 rotatably supports of central authorities, so that set up the conversion ratio that acts on the qualification of the adjustable transformer that is connected with transducer 1 thus.

Fig. 2 illustrates the retaining element 3.1 on top of transducer together with the transportation insurance device 20 that is provided with according to the utility model.Retaining element 3.1 has peristome section and pole portion section at this, causes the mechanical bearing capacity that improves in the time of the electric strength of these pole portion sections and peristome Duan Zaigao.In addition, in retaining element 3.1, be provided with the opening 21 of the contact rod 4 that is used to admit hollow, but these contact rods are removed from reason clearly in this view.Medially make another opening 22 in retaining element 3.1 inside, switching shaft 6 is admitted on the rotatable motion of this another opening ground.In addition, on the periphery on retaining element 3.1 distolateral, at this retaining element, medially be provided with the hole 23 of passing pole portion section being used to admit between the opening 21 of contact rod 4.Be configured to dihedral transportation insurance device 20 first end 20.1 with simple especially mode utilize dismountable immobilising device 24, for example by screw connection, in the hole 23 auxiliaryly directly be fixed on the retaining element 3.1 down.And the second end that is configured to fork-shaped 20.2 of transportation insurance device 20 can not be admitted switching shaft 6 with the relative rotation.On switching shaft 6, be provided with one for this reason and deviate from the circular zone of scabbling 25, two arm shapes that this zone betransported the second end that is configured to fork-shaped 20.2 of safeties 20 center on sealedly, make switching shaft 6 can not be fixed with the relative rotation thus.Alternatively also possible is, same as in the second end 20.2 of transportation fixture 20 for fixing switching shaft 6 is provided with a transverse holes in this switching shaft, thereby through inserting for example bolt, just switching shaft 6 can not be fixed with the relative rotation.

Claims

1. be used for the transducer of adjustable transformer, have:

A plurality of parallel, isolated and contact rods that be provided with around a common longitudinal central axis line circularly;

With respect to the rotatable motion of contact rod and be fixed on a contact making device on the switching shaft, be used to connect contact rod;

At least two flatly isolated each other retaining elements, these retaining elements are admitted said a plurality of contact rod and said switching shaft;

It is characterized in that: said transducer (1) be provided with one be configured to dihedral transportation insurance device (20), the first end of this transportation insurance device (20.1) be fixed on removably that retaining element (3.1 or 3.2) is gone up and the second end (20.2) of this transportation insurance device can not be with the relative rotation fixing switching shaft (6).

2. transducer according to claim 1 is characterized in that: the fixture of said transportation insurance device (20) on retaining element (3.1) is configured to dismountable screw connection (24).

3. transducer according to claim 1 is characterized in that: said transportation insurance device (20) for can not be with the relative rotation fixedly switching shaft (6) and have one be configured to fork-shaped the zone, this zone shape is admitted switching shaft (6) sealedly.

4. transducer according to claim 2 is characterized in that: said transportation insurance device (20) for can not be with the relative rotation fixedly switching shaft (6) and have one be configured to fork-shaped the zone, this zone shape is admitted switching shaft (6) sealedly.

5. according to each described transducer in the claim 1 to 4; It is characterized in that: said switching shaft (6) has a transverse holes; This transverse holes is arranged in the extended line in another hole of on the second end of transportation insurance device (20) (20.2), making; Thereby through inserting bolt, switching shaft (6) can not be fixed thus with the relative rotation.