CN201749777U

CN201749777U - Voltage transformer

Info

Publication number: CN201749777U
Application number: CN2010201571515U
Authority: CN
Inventors: 刘文浩; 滕守全; 荣香倩; 于景艳
Original assignee: Dalian No2 Instrument Transformer Co Ltd
Current assignee: Dalian No2 Instrument Transformer Co Ltd
Priority date: 2010-04-13
Filing date: 2010-04-13
Publication date: 2011-02-16
Anticipated expiration: 2020-04-13

Abstract

A voltage transformer comprises a primary contact arm iron core, a primary coil and a secondary coil, wherein, the iron core is a C type iron core, the secondary coil is sleeved on the iron core after being wound around a secondary skeleton, lead-out wires of the secondary coil are respectively connected with corresponding terminal blocks in a secondary terminal box, the primary coil is sleeved on the secondary coil, an insulating paper board is arranged between the primary and the secondary coils, a hollow type copper contact arm is installed at the outer end of a primary contact arm, a primary internal terminal block is fixedly arranged in the primary contact arm, a high voltage lead-out end of the primary coil is connected with the primary internal terminal block, a fuse is arranged inside the primary contact arm, one end of the fuse is connected with the primary internal terminal block, the other end of the fuse is connected with a primary copper contact arm, the copper contact arm is connected with a quincuncial contact terminal, and the primary coil, the secondary coil and the C type iron core are combined with epoxy resin to form an integral structure through pouring. Since the fuse is arranged in the primary contact arm, the utility model is compact in structure, small in size and light in weight. As a switch cabinet accessory, the utility model can lower the space requirements of a switch cabinet, thereby achieving the purpose of reducing building space.

Description

A kind of voltage transformer

Technical field

The utility model relates to a kind of instrument transformer, specifically relates to a kind of contact arm and Mume flower contact and built-in fuse type voltage transformer of having.

Background technology

Voltage transformer is used for electric energy metrical, monitoring and overvoltage and o-volt protection etc. in electric power system.The voltage transformer handcart of in the 3.5KV of system metal armouring switch cubicle, installing, the metering handcart bulky, floor space is big, the manufacturing cost height.Face miniaturization, integrated, the functional diversities requirement of the land resource, particularly electric power system of present growing tension, the 3.5KV voltage transformer that uses has not satisfied the needs of this development trend at present.

The utility model content

The purpose of this utility model provides a kind of contact arm, Mume flower contact terminal and built-in fuse type voltage transformer of having a time, can dwindle the volume of the switch cubicle that adopts this voltage transformer significantly.

The technical scheme that adopts is:

A kind of voltage transformer comprises epoxy resin poured body, primary winding, secondary coil, C sections core, a contact arm and a Mume flower contact terminal, it is characterized in that: the primary winding winding is on skeleton, and the secondary coil winding is on secondary skeleton; Primary winding and secondary coil are corresponding to skin and internal layer, and coaxial being contained on the C sections core, and the two ends of secondary coil are connected by the interior corresponding wiring terminal of lead-in wire and secondary terminal board respectively; In a contact arm, be provided with fuse and an internal wiring terminal, internal wiring terminal of the high-voltage connection termination of primary winding, a contact of fuse connects the internal wiring terminal one time, another contact of fuse connects the Mume flower contact terminal one time, and one time the Mume flower contact terminal is installed on the left side of a contact arm; Primary winding, secondary coil, C sections core and a contact arm poured with epoxy resin structure in aggregates, the lower surface of this epoxy resin poured body is fixed on installs on the base plate, and the secondary terminal board is fixed on to be installed on the base plate.

The utility model compact conformation, fuse place in contact arm, and volume is little, in light weight, and the utility model can dwindle the switch cubicle volume as the switch cubicle accessory, reduce the purpose that takies building space thereby reach.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the left view of Fig. 1.

Embodiment

A kind of voltage transformer comprises epoxy resin poured body 11, primary winding 7, secondary coil 10, C sections core 8, a contact arm 9 and a Mume flower contact terminal 2.Primary winding 7 windings are on skeleton, and secondary coil 10 windings are on secondary skeleton; Primary winding 7 and secondary coil 10 are corresponding to skin and internal layer, and coaxial being contained on the C sections core 8, and the corresponding wiring terminal that the two ends of secondary coil 10 are passed through respectively to go between with in the secondary terminal board 3 is connected; In a contact arm 9, be provided with fuse 1 and an internal wiring terminal 6, internal wiring terminal 6 of the high-voltage connection termination of primary winding 7, a contact of fuse 1 connects internal wiring terminal 6 one time, the other end of fuse links to each other with the copper contact arm, connecing 2, Mume flower contact terminals 2 of a Mume flower contact terminal on the copper contact arm is installed on the left side of a contact arm 9; Primary winding 7, secondary coil 10, C sections core 8 and contact arm 9 a usefulness poured with epoxy resin structure in aggregates, the lower surface of this epoxy resin poured body 11 is fixed on installs on the base plate 5, secondary terminal board 3 is fixed on the safe base plate 5, and secondary wire hole 4 is arranged on the secondary terminal board 3.

Claims

1. voltage transformer, comprise epoxy resin poured body (11), primary winding (7), secondary coil (10), C sections core (8), a contact arm (9) and a Mume flower contact terminal (2), it is characterized in that: primary winding (7) winding is on skeleton, and secondary coil (10) winding is on secondary skeleton; Primary winding (7) and secondary coil (10) are corresponding to skin and internal layer, and coaxial being contained on the C sections core (8), and the two ends of secondary coil (10) are connected by the interior corresponding wiring terminal of lead-in wire and secondary terminal board (3) respectively; In a contact arm (9), be provided with a fuse (1) and an internal wiring terminal (6), an internal wiring terminal of the high-voltage connection termination of primary winding (7) (6), a contact of fuse (1) connects an internal wiring terminal (6), another contact of fuse connects a Mume flower contact terminal (2), and a Mume flower contact terminal (2) is installed on the left side of a contact arm (9); Primary winding (7), secondary coil (10), C sections core (8) and a contact arm (9) poured with epoxy resin structure in aggregates, the lower surface of this epoxy resin poured body (11) is fixed on installs on the base plate (5), and secondary terminal board (3) is fixed on to be installed on the base plate (5).