CN201859767U

CN201859767U - Voltage transformer with fuse

Info

Publication number: CN201859767U
Application number: CN2010206156171U
Authority: CN
Inventors: 原国星; 孙远坤; 陈国鹏; 丑昌海
Original assignee: DALIAN HUAYI ELECTRIC POWER EQUIPMENT Co Ltd
Current assignee: DALIAN HUAYI ELECTRIC POWER EQUIPMENT Co Ltd
Priority date: 2010-11-20
Filing date: 2010-11-20
Publication date: 2011-06-08
Anticipated expiration: 2020-11-20

Abstract

A voltage transformer with fuse comprises a primary connecting terminal, a primary coil outgoing line, a primary coil, a secondary coil, a secondary connecting terminal, an iron core, connecting contacts and the fuse. The primary connecting terminal of the voltage transformer with the fuse is welded to one end of the fuse, the other end of the fuse is connected with the connecting contact, the primary coil outgoing line is connected with the connecting contact, the iron core penetrates through the primary coil, the number of through turns of the primary coil is defined, the secondary coil is uniformly wound on the iron core, the secondary coil is connected with the secondary connecting terminal, and the transformer is cast with epoxy resin materials. The voltage transformer with a fuse is simple in structure. The fuse is fused automatically when the voltage transformer is subjected to overvoltage, overcurrent or internal failure, so that the voltage transformer is isolated from an external circuit and is protected against being burnt out. In addition, the voltage transformer with a fuse is small in volume and reasonable in layout.

Description

A kind of voltage transformer with fuse

Technical field

The utility model relates to a kind of voltage transformer, concrete relates to a kind of voltage transformer with fuse.

Background technology

The utility model relates to a kind of voltage transformer, at present, traditional voltage transformer, when circuit breaks down or is unusual, easily cause in the circuit some important device to burn even cause fire, therefore be necessary to seek a kind of novel voltage transformer, can be when current anomaly raises, cut off electric current, guarantee circuit safety operation electric elements.

Summary of the invention

In view of the defective that prior art exists, the purpose of this utility model is to provide a kind of simple in structure, the voltage transformer of the band fuse that precision is high.

For achieving the above object, the technical solution that the utility model adopted:

A kind of voltage transformer with fuse comprises lead-out wire, primary winding, secondary coil, secondary connection terminal, iron core, connection contact, the fuse of primary connection terminal, primary winding; It is characterized in that: the primary connection terminal of the voltage transformer of described band fuse is welded on an end of fuse, the other end of fuse connects contact, the lead-out wire of primary winding connects contact, primary winding passes iron core, determine the punching number of turn, the secondary coil uniform winding is on iron core, and secondary coil connects the secondary connection terminal, and instrument transformer adopts the epoxide resin material cast to form.

Described iron core is " mouth " font structure.

After adopting such scheme, compare with existing product and the utlity model has following beneficial effect:

The utility model project organization is simple, fuses automatically when voltage transformer runs into overvoltage, overcurrent or internal fault, and instrument transformer and extraneous circuit are isolated, and the protection instrument transformer is not burnt, and the utility model volume is little, and is rationally distributed.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model longitudinal profile schematic diagram.

Embodiment

Reference numeral shown in Figure 1 is as follows: the lead-out wire 2 of primary connection terminal 1, primary winding, primary winding 3, secondary coil 4, secondary connection terminal 5, iron core 6, connection contact 7, fuse 8.

A kind of voltage transformer with fuse, comprise primary connection terminal 1, primary winding lead-out wire 2, primary winding 3, secondary coil 4, secondary connection terminal 5, iron core 6, connect contact 7, fuse 8.The primary connection terminal 1 of the voltage transformer of described band fuse is welded on an end of fuse 8, the other end of fuse 8 connects contact 7, the lead-out wire 2 of primary winding connects contact 7, primary winding 3 passes iron core 6, determine the punching number of turn, secondary coil 4 uniform winding are on iron core 6, and secondary coil 4 connects secondary connection terminal 5, and instrument transformer adopts the epoxide resin material cast to form.

Described iron core is " mouth " font structure.

Claims

1. voltage transformer with fuse comprises lead-out wire, primary winding, secondary coil, secondary connection terminal, iron core, connection contact, the fuse of primary connection terminal, primary winding; It is characterized in that: the primary connection terminal of the voltage transformer of described band fuse is welded on an end of fuse, the other end of fuse connects contact, the lead-out wire of primary winding connects contact, primary winding passes iron core, determine the punching number of turn, the secondary coil uniform winding is on iron core, and secondary coil connects the secondary connection terminal, and instrument transformer adopts the epoxide resin material cast to form.

2. a kind of voltage transformer with fuse according to claim 1 is characterized in that: described iron core is " mouth " font structure.