CN206161719U - Metallic glass current sensor - Google Patents

Abstract

The utility model discloses a metallic glass current sensor, include around the zero sequence iron core that is equipped with the zero sequence coil, around the A looks iron core that is equipped with A looks coil, around the B looks iron core that is equipped with B looks coil, around the C looks iron core that is equipped with C looks coil, zero sequence iron core, a looks iron core, B looks iron core and C looks iron core are the metallic glass iron core, zero sequence iron core, a looks iron core, B looks iron core, C looks iron core and zero sequence coil, a looks coil, B looks coil, C looks coil are all setting up in a shell and through epoxy resin casting formula structure as an organic whole around establishing on it respectively, use the metallic glass iron core, improved the work magnetism of iron core and felt, reduced the core volume, improved the magnetic conductivity and reduced the coercive force, reduced primary's excitation current and consume.

Description

A kind of non-crystaline amorphous metal current sensor

Technical field

The utility model is related to 10kV high-tension switch gear fields, more particularly to a kind of non-crystaline amorphous metal electric current of high-voltage switch gear Sensor.

Background technology

The load current of real-time monitoring distribution line is a conventional function of 10kV on-pole switch, by monitoring line electricity The situation of change of stream or voltage, can real-time monitor fault current voltage and short circuit current voltage, above send fault-signal.At present The current sensor for possessing real-time monitoring distribution line is substantially all using silicon steel sheet transformer iron core, and the survey of silicon sheet core Amount scope is narrower, for small current measurement electromagnetic type current sensor under high current easy saturation, secondary output waveform distorts, And it is larger in measurement small current time error to be used for the electromagnetic type current sensor of Super-Current Measurement, easily erroneous judgement, misjudgement.And electricity If the secondary coil open circuit of flow sensor will produce high pressure, secondary circuit occurs high potential over the ground, can cause the person and set Standby accident, it is extremely dangerous.

Utility model content

In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of work magnetic strength for improving iron core, contracting Small size, while secondary output voltage, will not produce second open circuit high pressure, high precision, wide ranges are more accurate to power system monitoring Really, the higher non-crystaline amorphous metal current sensor of security reliability.

To achieve these goals, the technical solution adopted in the utility model is：

A kind of non-crystaline amorphous metal current sensor, including the zero sequence iron core for being arranged with zero sequence coil, is arranged with the A of A phase coils Phase iron core, is arranged with the B phase iron cores of B phase coils, is arranged with the C phase iron cores of C phase coils, the zero sequence iron core, A phase iron cores, B phases Iron core, C phases iron core and it is being arranged on outside one rotating around zero sequence coil located in the above, A phase coils, B phase coils, C phase coils It is integral type structure in shell and by poured with epoxy resin, is provided with the shell for making Three-phase Power Systems primary current Center hole A, center hole B, the center hole C for flowing through, the shell is fixed on a base plate, the zero sequence iron core, A phase iron cores, B phases Iron core and C phase iron cores are amorphous alloy iron core.

As the further improvement of such scheme, there are zero sequence resistance, the A phase coils between the two ends of the zero sequence coil Two ends between be parallel with A phase resistances, B phase resistances, the two ends of the C phase coils are parallel between the two ends of the B phase coils Between be parallel with C phase resistances, the zero sequence resistance, A phase resistances, B phase resistances and C phase resistances are by epoxy resin and each iron core It is cast for integral structure.

As the further improvement of such scheme, be provided with the base plate the first inserts, the second inserts, the 3rd inserts, 4th inserts, the 5th inserts, the 6th inserts, the 7th inserts and the 8th inserts, the head and the tail two ends of the zero sequence coil respectively with institute The first inserts and the connection of the second inserts are stated, the head and the tail two ends of the A phase coils connect respectively with the 3rd inserts and the 4th inserts Connect, the head and the tail two ends of the B phase coils are connected respectively with the 5th inserts and the 6th inserts, the head and the tail two of the C phase coils End is connected respectively with the 7th inserts and the 8th inserts.

As the further improvement of such scheme, first inserts, the second inserts, the 3rd inserts, the 4th inserts, the 5th Inserts, the 6th inserts, the 7th inserts and the 8th inserts are arranged in order the front end for being arranged on the base plate.

Used as the further improvement of such scheme, the lower surface of the base plate is provided with installing hole.

The beneficial effects of the utility model：

A kind of non-crystaline amorphous metal current sensor of the utility model, using amorphous alloy iron core, improves the work magnetic of iron core Sense, reduces core volume, improves magnetic conductivity and reduces coercivity, reduces exciting curent and the consume of primary coil； The two ends of each coil are parallel with resistance, while secondary output voltage, will not produce second open circuit high pressure, to power system monitoring more Accurately, security reliability is higher.

Description of the drawings

Technical scheme in order to be illustrated more clearly that the utility model embodiment, below will be to needed for embodiment description The accompanying drawing to be used is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model, rather than entirely Portion's embodiment, those skilled in the art on the premise of not paying creative work, can be with according to these accompanying drawings acquisitions Other designs and accompanying drawing：

Fig. 1 is the utility model preferred embodiment front view；

Fig. 2 is the utility model preferred embodiment top view；

Fig. 3 is the utility model preferred embodiment elementary diagram.

Specific embodiment

The technique effect of design of the present utility model, concrete structure and generation is carried out below with reference to embodiment and accompanying drawing Clearly and completely describe, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment It is a part of embodiment of the present utility model, rather than whole embodiments, based on embodiment of the present utility model, the skill of this area The other embodiment that art personnel are obtained on the premise of not paying creative work, belongs to the model of the utility model protection Enclose.

Referring to figs. 1 to Fig. 3, a kind of non-crystaline amorphous metal current sensor, including the zero sequence iron core 42 for being arranged with zero sequence coil 41, The A phases iron core 12 of A phase coils 11 is arranged with, the B phases iron core 22 of B phase coils 21 is arranged with, the C phase iron of C phase coils 31 is arranged with Core 32, the zero sequence iron core 42, A phases iron core 12, B phases iron core 22, C phases iron core 32 and rotating around zero sequence coil located in the above 41st, A phase coils 11, B phase coils 21, C phase coils 31 are being arranged in a shell 5 and by poured with epoxy resin are being integral type Structure, is provided with the center hole A81 for flowing through Three-phase Power Systems primary current, center hole B82, wears on the shell 5 Heart hole C83, the shell 5 is fixed on a base plate 6, and the lower surface of the base plate 6 is provided with installing hole 7, the zero sequence iron core 42nd, A phases iron core 12, B phases iron core 22 and C phases iron core 32 are amorphous alloy iron core.Amorphous alloy iron core improves zero sequence iron core 42nd, the work magnetic strength of A phases iron core 12, B phases iron core 22 and C phases iron core 32, reduces the volume of iron core, reduces current sensor Overall volume, it is convenient to install, improve magnetic conductivity and reduce coercivity, reduce exciting curent and the consume of primary coil.

There is zero sequence resistance 43 between the two ends of the zero sequence coil 41, between the two ends of the A phase coils 11 A phases are parallel with Resistance 13, is parallel with B phase resistances 23 between the two ends of the B phase coils 21, between the two ends of the C phase coils 31 C is parallel with Phase resistance 33, the zero sequence resistance 43, A phase resistances 13, B phase resistances 23 and C phase resistances 33 are by epoxy resin and each iron core It is cast for integral structure.

The first inserts 44, the second inserts 45, the 3rd inserts 14, the 4th inserts 15, the 5th inserts are provided with the base plate 24th, the 6th inserts 25, the 7th inserts 34 and the 8th inserts 35, the head and the tail two ends of the zero sequence coil 41 are embedding with described first respectively The inserts 45 of part 44 and second connects, the head and the tail two ends of the A phase coils 11 respectively with the 3rd inserts 14 and the 4th inserts 15 Connection, the head and the tail two ends of the B phase coils 21 are connected respectively with the 5th inserts 24 and the 6th inserts 25, the C phase coils 31 head and the tail two ends are connected respectively with the 7th inserts 34 and the 8th inserts 35.

First inserts 44, the second inserts 45, the 3rd inserts 14, the 4th inserts 15, the 5th inserts 24, the 6th inserts 25th, the 7th inserts 34 and the 8th inserts 35 are arranged in order the front end for being arranged on the base plate 6.

3rd inserts 14, the 4th inserts 15 flow through secondary voltage output during primary current for correspondence center hole A81 End, the 5th inserts 24, the 6th inserts 25 flow through secondary voltage output end during primary current for correspondence center hole B82, and described the Seven inserts 34 and the 8th inserts 35 flow through secondary voltage output end during primary current for correspondence center hole C83, and described first is embedding When part 44, the second inserts 45 are correspondence center hole A81, center hole B82, center hole C83 flows through three-phase primary current secondary zero Sequence voltage output end.The inserts that resistance in parallel, also coil end are arranged is while secondary output voltage, will not produce two Secondary open circuit high pressure, high precision, wide ranges are more accurate to power system monitoring, and security reliability is higher

It is more than that preferred embodiment of the present utility model is illustrated, but the utility model is created and is not limited to The embodiment, those of ordinary skill in the art can also make a variety of etc. on the premise of without prejudice to the utility model spirit With modification or replacement, the modification of these equivalents or replacement are all contained in the application claim limited range.

Claims (5)

1. a kind of non-crystaline amorphous metal current sensor, including being arranged with zero sequence coil（41）Zero sequence iron core（42）, it is arranged with A phase lines Circle（11）A phase iron cores（12）, it is arranged with B phase coils（21）B phase iron cores（22）, it is arranged with C phase coils（31）C phase iron cores （32）, it is characterised in that：The zero sequence iron core（42）, A phase iron cores（12）, B phase iron cores（22）, C phase iron cores（32）And respectively Around zero sequence coil located in the above（41）, A phase coils（11）, B phase coils（21）, C phase coils（31）It is being arranged on a shell（5） It is interior and by poured with epoxy resin be integral type structure, the shell（5）On be provided with for making Three-phase Power Systems once electric The center hole A that stream flows through（81）, center hole B（82）, center hole C（83）, the shell（5）It is fixed on a base plate（6）On, it is described Zero sequence iron core（42）, A phase iron cores（12）, B phase iron cores（22）With C phase iron cores（32）It is amorphous alloy iron core.

2. non-crystaline amorphous metal current sensor according to claim 1, it is characterised in that：The zero sequence coil（41）Two ends Between have zero sequence resistance（43）, the A phase coils（11）Two ends between be parallel with A phase resistances（13）, the B phase coils（21） Two ends between be parallel with B phase resistances（23）, the C phase coils（31）Two ends between be parallel with C phase resistances（33）, described zero Sequence resistance（43）, A phase resistances（13）, B phase resistances（23）With C phase resistances（33）It is cast for one with each iron core by epoxy resin Body formula structure.

3. non-crystaline amorphous metal current sensor according to claim 2, it is characterised in that：It is embedding first to be provided with the base plate Part（44）, the second inserts（45）, the 3rd inserts（14）, the 4th inserts（15）, the 5th inserts（24）, the 6th inserts（25）, the 7th Inserts（34）With the 8th inserts（35）, the zero sequence coil（41）Head and the tail two ends respectively with first inserts（44）With second Inserts（45）Connection, the A phase coils（11）Head and the tail two ends respectively with the 3rd inserts（14）With the 4th inserts（15）Even Connect, the B phase coils（21）Head and the tail two ends respectively with the 5th inserts（24）With the 6th inserts（25）Connection, the C phases Coil（31）Head and the tail two ends respectively with the 7th inserts（34）With the 8th inserts（35）Connection.

4. non-crystaline amorphous metal current sensor according to claim 3, it is characterised in that：First inserts（44）, second Inserts（45）, the 3rd inserts（14）, the 4th inserts（15）, the 5th inserts（24）, the 6th inserts（25）, the 7th inserts（34）With Eight inserts（35）It is arranged in order and is arranged on the base plate（6）Front end.

5. non-crystaline amorphous metal current sensor according to claim 1, it is characterised in that：The base plate（6）Lower surface set It is equipped with installing hole（7）.