Support and fastener for polarization risistors of on-load tap changer

Patent metadata

Field	Value
Publication number	US-2016284448-A1
Application number	US-201415031516-A
Country	US
Kind code	A1
Filing date	Nov 10, 2014
Priority date	Nov 25, 2013
Publication date	Sep 29, 2016
Grant date	—

Abstract

A support module ( 10 ) for polarization resistors of an on-load tap changer comprises:—a supporting region ( 11 ) for at least one polarization resistor;—a first joint region ( 13 );—a second joint region ( 14 ) which is compatible with the first joint region. A support frame ( 19 ) for polarization resistors of an on-load tap changer comprises:-two such support modules which are joined by virtue of the second joint region of the first support module bearing at least partially against the first joint region of the second support module. A fastening element ( 24 ) for polarization resistors ( 22 ) comprises:—two electrically conductive accommodating sections ( 25 ), which each have an accommodating opening ( 27 ) for one of the ends ( 23 ) of a polarization resistor ( 22 );—an electrically conductive connecting section ( 26 ), which connects the two accommodating sections ( 25 ) mechanically

First claim

1 . A support module for polarity resistors of a tap changer, comprising:
a support region for at least one polarity resistor; a first connecting face, and a second connecting face that fits the first connecting face.

2 . The support module according to claim 1 , wherein:
the first connecting face and the second connecting face are on opposite sides of the support module.

3 . The support module according to claim 1 , further comprising:
a third connecting face; and a fourth connecting face that fits the third connecting face.

4 . The support module according to claim 1 , further comprising:
an additional support region for at least one polarity resistor.

5 . A support structure for polarity resistors of a tap changer, comprising:
two support modules that each comprise:
a support region for at least one polarity resistor;
a first connecting face; and
a second connecting face that fits the first connecting face;

wherein:
the support modules are joined with the second connecting face of the first support module bears at least partly against the first connecting face of the second support module.

6 . The support structure according to claim 5 , further comprising:
a third support module;
wherein:
each support module comprises:
a third connecting face; and
a fourth connecting face that fits the third connecting face;

and the third support module and one of the other support modules are joined with the fourth connecting face of the third support module bears bearing at least partly against the third connecting face of this the one other support module.

7 . A fastener for polarity resistors that each have two electrically conductive ends, the fastener comprising:
two electrically conductive sockets that each have a respective seat for one of the ends of a polarity resistor, an electrically conductive connecting section that mechanically and electrically connects the two sockets together; a first portion that forms the first socket and an adjoining first part of the connecting section; and a second portion that forms the second socket and an adjoining second part of the connecting section wherein: the first and second parts are constructed as a plug connection.

8 . The fastener according to claim 7 , wherein:
the first portion comprises a socket body that forms the first socket and a connecting member that forms the first part of the connecting section and is fastened to the socket body; and/or the second portion comprises a socket body that forms the second socket and a connecting member that forms the second part of the connecting section and is fastened to the socket body.

9 . The fastener according to claim 8 , wherein in at least one of the portions,
the respective socket body has a hole with an internal thread; and the free end that is near the socket body, of the connecting member is formed as a stud with an external thread for engagement in the internal thread.

10 . The fastener according to claim 9 , wherein in at least one of the portions:
the hole of the socket body is a passage that opens into the seat and is shorter than the stud of the connecting member.

11 . An assembly of polarity resistors of a tap changer, the assembly comprising:
two polarity resistors that each have two electrically conductive ends, and a support structure that comprises two support modules each having:
a first support region for at least one polarity resistor,
a second support region for at least one polarity resistor,
a first connecting face, and
a second connecting face that fits the first connecting face;

wherein:
the support modules are joined with the second connecting face of the first support module at least partly bears bearing against the first connecting face of the second support module;
in each support module the connecting faces are on opposite sides of the support module;
in each support module the support regions are on opposite sides of the support module;
in each support module each support region is between the connecting faces and/or connects together the connecting faces;
the first polarity resistor is fastened to the first support region of the first support module;
the second polarity resistor is fastened to the second support region of the first support module and/or the second support region of the second support module;
the first end of the second polarity resistor lies closer to the second end of the first polarity resistor than to the first end of the first polarity resistor and is connected with this second end; and
the second end of the second polarity resistor lies closer to the first end of the first polarity resistor than to the second end of the first polarity resistor.

12 . The assembly according to claim 11 , wherein:
each polarity resistor is fastened by its ends to the support structure.

13 . The assembly according to claim 12 , comprising:
for each polarity resistor, two fasteners each comprising:
two electrically conductive sockets each having a seat for an end of one of the polarity resistors; and
an electrically conductive connecting section that mechanically and electrically connects the two sockets together;

wherein:
each support module has two passages that each extend from the first to the second support region and can receive the connecting section of one of the fasteners in such a way that the first socket of the fastener lies in the first support region of the support module and the second socket of the fastener lies in the second support region of the support module.

14 . The assembly according to claim 13 , wherein:
a first and a second fastener are received in the passages of the first support module; a third fastener is received in one of the passages of the second support module; the first polarity resistor is seated by its first end in the first seat of the first fastener and by its second end in the first seat of the second fastener; and the second polarity resistor is seated by its first end in the second seat of the second fastener and by its second end in the second seat of the third fastener.

15 . The assembly according to claim 11 , wherein:
a first and a second fastener are received in the passages of the first support module; a third and a fourth fastener are received in the passages of the second support module; the first polarity resistor is seated by its first end in the first seat of the first fastener and by its second end in the first seat of the second fastener; the second polarity resistor is seated by its first end in the second seat of the third fastener and by its second end in the second seat of the fourth fastener; and the third fastener is connected with the second fastener.

Assignees

• Reinhausen Maschf Scheubeck

Inventors

• Hiltner Robert
• Schuster Thomas
• Bengler Moritz

Classifications

• H01H9/0044

  Casings; Mountings; Disposition in transformer housing · CPC title

• H01H9/0005 Primary

  Tap change devices · CPC title

• H01C13/02 Primary

  Structural combinations of resistors · CPC title