CN203150375U

CN203150375U - Low-voltage busbar type switching-on current transformer

Info

Publication number: CN203150375U
Application number: CN 201220502722
Authority: CN
Inventors: 梁军; 王岚樵
Original assignee: XINXIANG ZHONGKAI ELECTRICAL CO Ltd
Current assignee: XINXIANG ZHONGKAI ELECTRICAL CO Ltd
Priority date: 2012-09-27
Filing date: 2012-09-27
Publication date: 2013-08-21
Anticipated expiration: 2022-09-27

Abstract

The utility model belongs to a current measuring and microcomputer protecting device of power consuming equipment, and particularly to a low-voltage busbar type switching-on current transformer. The low-voltage busbar type switching-on current transformer comprises a U-shaped upper part and a C-shaped lower part with a slot. The U-shaped upper part is composed of a housing and a U-shaped iron core. The C-shaped lower part is in insertion connection with the U-shaped upper part through a slot on the C-shaped lower part. The U-shaped iron core and the C-shaped lower part are closed. The insertion connection part is provided with a positioning snapping head and a groove. The U-shaped upper part and the C-shaped lower part are provided with a fastening device. The fastening device is composed of a snapping position, a draw ring and a hand pulling part. The low-voltage busbar type switching-on current transformer provided by the utility model can be designed to open. The upper half part and the lower half part can be plugged for facilitating mounting and detachment. The fastening device is provided at the transformer housing so that the upper iron core and the lower iron core are tightly combined, thereby ensuring higher measurement precision, facilitating coil winding on the upper iron core and the lower iron core, facilitating production of the transformer, reducing workload in coiling and coil damage, and improving integral qualified rate of the product.

Description

Low pressure busbar formula firing current instrument transformer

Technical field

The utility model belongs to current measurement and the microcomputer protecting device of power consumption equipment, particularly a kind of low pressure busbar formula firing current instrument transformer.

Background technology

In the at present common low-voltage alternating-current circuit, current measurement and Microcomputer Protection instrument transformer, it is most that to the line current measurement, the subject matter of its existence has in order to be enclosed within on the electrical wiring, the installing/dismounting inconvenience, maintenance is wasted time and energy, and efficient is low; The transformer iron core major part is annular, the coil winding inconvenience.

Summary of the invention

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part, and a kind of safe and reliable fitting operation low pressure busbar formula firing current instrument transformer easily is provided.

Technical scheme:

A kind of low pressure busbar formula firing current instrument transformer, comprise the U-shaped first half and band slot C shape Lower Half two parts, the described U-shaped first half is made up of shell and U-iron core, C shape Lower Half is plugged on together by slot on it and the U-shaped first half, make U-iron core and C shape Lower Half iron core closure, the Plug Division is arranged with location dop and groove.

The described U-shaped first half and C shape bottom shelf half are provided with tightening device, and tightening device is made up of screens, draw ring, spanner.

Described C shape Lower Half iron core is yi word pattern.

The beneficial effects of the utility model:

1, low pressure busbar formula firing current instrument transformer of the present utility model can be opened design, and installing/dismounting is convenient in the two halves plug up and down, and transformer casing is provided with tightening device, makes lower core in conjunction with closely, has guaranteed higher certainty of measurement.

2, low pressure busbar formula firing current instrument transformer of the present utility model, last lower core makes things convenient for coil winding, is convenient to the production of instrument transformer, has reduced the coiling workload and has reduced the impaired generation of coil, improves product overall acceptability rate.

3, low pressure busbar formula firing current instrument transformer of the present utility model, the safety standard height, reasonable in design, cost is low, conveniently applies.

Description of drawings

Fig. 1 is the utility model low pressure busbar formula firing current instrument transformer perspective view.

Fig. 2 is the utility model low pressure busbar formula firing current instrument transformer cross-sectional view.

Fig. 3 is that the utility model low pressure busbar formula firing current instrument transformer bracelet tightly installs the first half structural representation.

Fig. 4 is that the utility model low pressure busbar formula firing current instrument transformer bracelet tightly installs the latter half structural representation.

Fig. 5 is the utility model low pressure busbar formula firing current instrument transformer yi word pattern iron core the latter half structural representation.

Number in the figure 1 is the U-shaped first half, and 2 is C shape Lower Half, and 3 is slot, and 4 is the U-iron core, and 5 is C shape Lower Half iron core, and 6 are the location dop, and 7 is groove, and 8 are screens, and 9 is draw ring, and 10 is spanner, and 11 is the yi word pattern iron core.

Embodiment:

Embodiment one: referring to Fig. 1, Fig. 2, a kind of low pressure busbar formula firing current instrument transformer, comprise the U-shaped first half 1 and band slot C shape Lower Half 2 two parts, the described U-shaped first half is made up of shell and U-iron core 4, C shape Lower Half is plugged on together by slot on it 3 and the U-shaped first half, makes U-iron core 4 and C shape Lower Half iron core 5 closures, and the Plug Division is arranged with location dop 6 and groove 7;

During use, the U-shaped first half is stuck on the circuit to be measured, is plugged on C shape Lower Half then, location dop and groove are coincide.

Embodiment two: referring to Fig. 3, Fig. 4, a kind of low pressure busbar formula firing current instrument transformer, comprise the U-shaped first half 1 and band slot C shape Lower Half 2 two parts, the described U-shaped first half is made up of shell and U-iron core 4, C shape Lower Half is plugged on together by slot on it 3 and the U-shaped first half, makes U-iron core 4 and C shape Lower Half iron core 5 closures, and the Plug Division is arranged with location dop 6 and groove 7;

The described U-shaped first half and C shape bottom shelf half are provided with tightening device, and tightening device is made up of screens 8, draw ring 9, spanner 10;

During use, the U-shaped first half is stuck on the circuit to be measured, is plugged on C shape Lower Half then, location dop and groove are coincide, then draw ring 9 is hung in the screens 8, press lower ejector lever 10, make the halves fastening up and down of low pressure busbar formula firing current instrument transformer.

Embodiment three: roughly the same with embodiment two referring to Fig. 5, identical support repeats no more, and different places are that described C shape Lower Half iron core is yi word pattern.

Above embodiment is preferential execution mode, but is not limited only to this.

Claims

1. low pressure busbar formula firing current instrument transformer, comprise the U-shaped first half and band slot C shape Lower Half two parts, it is characterized in that: the described U-shaped first half is made up of shell and U-iron core, C shape Lower Half is plugged on together by slot on it and the U-shaped first half, make U-iron core and C shape Lower Half iron core closure, the Plug Division is arranged with location dop and groove.

2. low pressure busbar formula firing current instrument transformer according to claim 1, it is characterized in that: the described U-shaped first half and C shape bottom shelf half are provided with tightening device, and tightening device is made up of screens, draw ring, spanner.

3. low pressure busbar formula firing current instrument transformer according to claim 1, it is characterized in that: described C shape Lower Half iron core is yi word pattern.