CN209357609U - Electronic type current sensor in band synthesis three phase user's - Google Patents
Electronic type current sensor in band synthesis three phase user's Download PDFInfo
- Publication number
- CN209357609U CN209357609U CN201822154822.1U CN201822154822U CN209357609U CN 209357609 U CN209357609 U CN 209357609U CN 201822154822 U CN201822154822 U CN 201822154822U CN 209357609 U CN209357609 U CN 209357609U
- Authority
- CN
- China
- Prior art keywords
- phase
- phase coil
- sample resistance
- coil
- insulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model relates to electric system high-tension measurement and protective device, electronic type current sensor in specifically a kind of band synthesis three phase user's.Including insulator and the A phase coil, B phase coil and the C phase coil that are sealed and placed in insulator and equidistantly distribute, wherein the secondary wiring terminals of A phase coil, B phase coil and C phase coil are set to the bottom of insulator, successively connect respectively with one end of A phase sample resistance, B phase sample resistance and C phase sample resistance on the secondary lead-out wire s of A phase coil, B phase coil and C phase coil, A phase sample resistance, the other end and A phase coil of B phase sample resistance and C phase sample resistance, B phase coil and C phase coil secondary lead-out wire s between be parallel with zero sequence sample resistance.The utility model is formed using epoxide resin vacuum is casting insulated, have the function of small in size, low in energy consumption, insulation stablize, securely and reliably, the characteristics of measurement range is wide, advanced, use flexibly.
Description
Technical field
The utility model relates to electric system high-tension measurement and protective device, in specifically a kind of band synthesis three phase user's
Electronic type current sensor.
Background technique
Electronic current mutual inductor is to meet modern power systems middle/high-voltage electrical appliance equipment to intelligence, modularization, small-sized
Change, is multi-functional, the needs of one of the key equipment that non-maintaining direction is developed and Automation of Electric Systems, digital development.It is existing
The microcomputer composite measurement protective device and instrument and meter of generationization no longer need mutual inductor offer energy to carry out work, only need mutual inductor will
Primary current information is complete, in time, accurately acquires and sends, it is only necessary to the voltage signal of several volts and minimum power
It is just able to satisfy its interface requirements, traditional electromagnetic current transducer is difficult to be done directly computer technology to electric current complete information
Carry out the requirement of digitized processing, it is difficult to realize the on-line monitoring that power grid changes electrical parameter, it is automatic to hinder electric system
Change and develops to higher level.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide electronic current sensings in a kind of band synthesis three phase user's
Device is not able to satisfy Automation of Electric Systems, digitized processing demand for development to solve conventional electromagnetic current transformer.
To achieve the goals above, the utility model uses following technical scheme:
Electronic type current sensor in a kind of band synthesis three phase user's, including insulator and be sealed and placed in the insulator and wait
A phase coil, B phase coil and the C phase coil of range distribution, wherein secondary wiring terminals of A phase coil, B phase coil and C phase coil
Be set to the bottom of the insulator, on the secondary lead-out wire s1 of the A phase coil, B phase coil and C phase coil successively respectively with
One end of A phase sample resistance, B phase sample resistance and C phase sample resistance connects, the A phase sample resistance, B phase sample resistance and C
Zero sequence is parallel between the other end of phase sample resistance and the secondary lead-out wire s2 of the A phase coil, B phase coil and C phase coil
Sample resistance.
The insulator is an integral structure using epoxide resin vacuum casting.
The insulator is ellipsoidal structure and bottom is equipped with multiple embedded nuts.
There are three equidistant circular bus holes for the central distribution of the three-phase coil of the insulator.
In the recess location that the side bottom that the secondary wiring terminals are located at the insulator is equipped with.
The utility model has the following advantages that and beneficial effect is:
1. small in size, structure is simple: A, B, C three-phase coil and zero sequence coil of the utility model use poured with epoxy resin
For common type structure, the much room of previous three single-phase current transformers and a zero sequence current mutual inductor, product are saved
Volume very little, the simpler saving of structure.
2. easy-to-connect, flexible for installation: the specially designed secondary wiring terminals position of the utility model and switch internal protect
Wire casing can smoothly transit combination, and wiring is more convenient；Four embedded nuts equidistantly distributed realize four with switch internal
A mounting hole, which is accurately positioned, to be fixedly mounted, and is installed very convenient flexible.
3. perfect performance, insulation are reliable: three monophase current coils of the utility model are equidistant to be sleeved on zero sequence coil
Inside makes product while realizing the function of individual phase measurement and three-phase zero sequence relay protection, and performance more improves reliable, whole use
Epoxide resin vacuum is poured, and good sealed insulation ensure that product insulation is very reliable.
4. function is advanced, flexible in application: the product function of the utility model is advanced, integrates measurement and protection, can be fast
Speed, it is complete, accurately by primary information send to computer carry out data processing or with the measurements, protective device such as digital instrumentation
It is connected, realizes metering, measurement, protection, control, status monitoring.And output be small voltage signal, easily with it is digital
Instrument, microcomputer measuring and controlling protection equipment interface connection, without carrying out two times transfer, application is very flexible.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the cross-sectional view of the utility model.
In figure: 1 is iron core, and 2 be secondary winding, and 3 be A phase coil, and 4 be B phase coil, and 5 be C phase coil, and 7 be secondary connection
Terminal, 8 be insulator, and 9 be bus hole, and 10 be embedded nut, and 11 be A phase sample resistance, and 12 be B phase sample resistance, and 13 be C phase
Sample resistance, 14 be zero sequence sample resistance.
Specific embodiment
In order to keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawing and it is embodied
The utility model is described in detail in example.
As shown in Figure 1-3, electronic type current sensor in a kind of band synthesis three phase user's provided by the utility model, including it is exhausted
Edge body 8 and be sealed and placed in A phase coil 3, B phase coil 4 and the C phase coil 5 in insulator 8 and equidistantly distributed, wherein A phase coil 3,
The secondary wiring terminals 7 of B phase coil 4 and C phase coil 5 are set to the bottom of insulator 8, A phase coil 3, B phase coil 4 and C phase line
Successively one end with A phase sample resistance 11, B phase sample resistance 12 and C phase sample resistance 13 respectively on the secondary lead-out wire s1 of circle 5
Connection, the other end and A phase coil 3, the B phase coil 4 and C of A phase sample resistance 11, B phase sample resistance 12 and C phase sample resistance 13
Zero sequence sample resistance 14 is parallel between the secondary lead-out wire s2 of phase coil 5.
Insulator 8 uses epoxide resin vacuum casting to be an integral structure and for ellipsoidal structure, the bottom of insulator 8
Equipped with multiple embedded nuts 10.The central distribution of the three-phase coil of insulator 8 is there are three equidistant circular bus hole 9, and two
In the recess location that the side bottom that secondary connecting terminal 7 is located at insulator 8 is equipped with.
The manufacturing process of the utility model is:
A phase coil 3, B phase coil 4 and the hair structure of C phase coil 5 are identical, and each single phase winding is the equably coiling of secondary winding 2
On the iron core 1 of circular ring type, then insulation and the wrapping of padded coaming are carried out, three-phase single phase winding successively equally completes；Three lines
After circle is respectively completed, 11 one end of A phase sample resistance is connected on the secondary lead-out wire s1 of A phase coil 3, B phase sample resistance 12
One end is connected on the secondary lead-out wire s1 of B phase coil 4, and one end of C phase sample resistance 13 is connected to C phase coil 5 two times extractions
On line s1, zero sequence sample resistance 14 is connected in parallel on the other end of A phase sample resistance 11, B phase sample resistance 12, C phase sample resistance 13
Between the secondary lead-out wire s2 of A phase coil 3, B phase coil 4, C phase coil 5, and wrapped with insulating materials and binding material
It pricks, forms the coil body with secondary input terminal 7, secondary coil (A phase coil 3, B phase coil 4, C phase coil 5)；It is die-filling
When, by A phase coil 3, B phase coil 4, C phase coil 5 is equidistant is sleeved on mould inside, embedded nut 10 is fixed on mold,
Wiring secondary wiring terminals 7 adjust A phase coil 3, B phase coil 4 and C phase coil 5 and A phase sample resistance 11, B phase and sample electricity
It is poured solidification insulation with epoxide resin vacuum after the distance of resistance 12, C phase sample resistance 13 and zero sequence sample resistance 14, is become therewith
One resin insulator 8 makes product while realizing the function of individual phase measurement and three-phase zero sequence relay protection, whole to use asphalt mixtures modified by epoxy resin
Rouge vacuum pouring is a resin insulator 8, and resin insulator is oval pieshape, and product has structure simple, and volume is smaller
The characteristics of.The central distribution of three-phase coil is there are three equidistant circular bus hole 9, and the three of mutual distance and switch internal
Phase high voltage bus be equidistantly from, using installation when, bus hole 9 can with the casing of three-phase solid-sealed high voltage bus be fitted close pacify
Dress and insulated enclosure；Secondary wiring terminals 7 are located at 8 side bottom indent position of insulator, this Position Design and switch internal protect line
Slot can smoothly transit combination, thoroughly solve the complicated processes of the need of original more mutual inductors independently wiring, facilitate
Secondary cable lead simultaneously and is conducive to the processing of secondary insulating.What 8 bottom plane of insulator equidistantly distributed there are four being embedded
Embedded nut 10 is realized and fixed installation is accurately positioned with four mounting holes of switch internal.
When installing and using, this product is mounted on outgoing line side in switch-box body, and switch internal high voltage bus casing initially passes through production
The circular busbar hole of product, is then fixed on the positioning product with the embedded nut of bottom surface, finally in box house according to design
It is required that carrying out secondary lead wires wiring, the convenient, flexible completion of the utility model installment work.
Indoor three-phase electronic current transformer provided by the utility model is one designed fully according to national standard
Kind new product, using electromagnetic conversion principle, primary current is converted into and primary electricity using quality material using iron core is rolled
Flow proportional small voltage signal identical with phase, send to computer carry out data processing or measured with digital instrumentation etc.,
Protective device is connected, and realizes the functions such as metering, measurement, protection.
The utility model is formed using epoxide resin vacuum is casting insulated, there is small in size, low in energy consumption, insulation to stablize, peace
The characteristics of complete reliable, measurement range is wide, function is advanced, use flexibly, further improves power system device automation, number
The level of change.
The secondary output of the utility model is small voltage signal, is not necessarily to two times transfer, can be convenient with digital instrument, micro-
Machine protection control equipment interface connection, realizes the function of metering, control, measurement, protection and data transmission, eliminates traditional electromagnetism
Formula Current Transformer Secondary is opened a way to power system device and personal safety bring potential faults.
The foregoing is merely the embodiments of the present invention, are not intended to limit the protection scope of the utility model.It is all
Any modification, equivalent substitution and improvement made within spirit of the present utility model and principle, extension etc., are all contained in this reality
With in novel protection scope.
Claims (5)
1. electronic type current sensor in a kind of band synthesis three phase user's, which is characterized in that including insulator (8) and be sealed and placed in described
In insulator (8) and the A phase coil (3), B phase coil (4) and the C phase coil (5) that equidistantly distribute, wherein A phase coil (3), B phase
The secondary wiring terminals (7) of coil (4) and C phase coil (5) are set to the bottom of the insulator (8), the A phase coil (3),
On the secondary lead-out wire s1 of B phase coil (4) and C phase coil (5) successively respectively with A phase sample resistance (11), B phase sample resistance
(12) and one end of C phase sample resistance (13) connects, and the A phase sample resistance (11), B phase sample resistance (12) and C phase sample
It is in parallel between the other end of resistance (13) and the secondary lead-out wire s2 of the A phase coil (3), B phase coil (4) and C phase coil (5)
There are zero sequence sample resistance (14).
2. electronic type current sensor in band synthesis three phase user's according to claim 1, which is characterized in that the insulator
(8) it is an integral structure using epoxide resin vacuum casting.
3. electronic type current sensor in band synthesis three phase user's according to claim 2, which is characterized in that the insulator
(8) be ellipsoidal structure and bottom is equipped with multiple embedded nuts (10).
4. electronic type current sensor in band synthesis three phase user's according to claim 2, which is characterized in that the insulator
(8) there are three equidistant circular bus holes (9) for the central distribution of three-phase coil.
5. electronic type current sensor in band according to claim 2 synthesis three phase user's, which is characterized in that described secondary to connect
In the recess location that the side bottom that line terminals (7) are located at the insulator (8) is equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822154822.1U CN209357609U (en) | 2018-12-21 | 2018-12-21 | Electronic type current sensor in band synthesis three phase user's |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822154822.1U CN209357609U (en) | 2018-12-21 | 2018-12-21 | Electronic type current sensor in band synthesis three phase user's |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209357609U true CN209357609U (en) | 2019-09-06 |
Family
ID=67799493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822154822.1U Active CN209357609U (en) | 2018-12-21 | 2018-12-21 | Electronic type current sensor in band synthesis three phase user's |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209357609U (en) |
-
2018
- 2018-12-21 CN CN201822154822.1U patent/CN209357609U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106771469A (en) | Controller switching equipment merges three-phase intelligent Current Voltage integration transformers with one or two times | |
| CN209281982U (en) | Indoor three-phase electronic current transformer | |
| CN208596896U (en) | Automatic Switching on a kind of distribution net post using electronic sensor | |
| CN204945228U (en) | A kind of alternating current sampling apparatus | |
| CN209282022U (en) | Three-phase outdoor electronic formula current sensor with zero formula of synthesis | |
| CN209357609U (en) | Electronic type current sensor in band synthesis three phase user's | |
| CN201663050U (en) | Electronic combined transformer | |
| CN201036161Y (en) | Three-phase pouring type combined transformer | |
| CN209282026U (en) | Outdoor three-phase electronic current mutual inductor | |
| CN205004161U (en) | Take integrated current transformer of contact box modularization | |
| CN206906454U (en) | One or two fusion three-phase intelligent Current Voltage integration transformers of controller switching equipment | |
| CN111354539A (en) | Indoor three-phase electronic current transformer | |
| CN115420912A (en) | Composite insulation straight-through combined sensor with electromagnetic electronic type | |
| CN204558236U (en) | A kind of three-phase integrated zero sequence current mutual inductor | |
| CN201252000Y (en) | Fully-closed multi-winding current transformer | |
| CN209841950U (en) | Depth fusion current sensor | |
| CN202307496U (en) | Electronic high-voltage current transformer | |
| CN207068639U (en) | Outdoor pole top switch three-phase current combination transformer | |
| CN207800341U (en) | A kind of band busbar wall-penetrating type current transformer | |
| CN203366980U (en) | Phase sequence and zero sequence all-in-one current transformer | |
| CN202736729U (en) | Electronic current and voltage transformer for 126kV GIS (Global Information System) | |
| CN111354558A (en) | In-door electronic current sensor of synthetic three-phase | |
| CN206516474U (en) | Current transformer | |
| CN201117422Y (en) | Electronic type current mutual inductor for central cabinet | |
| CN208873598U (en) | A kind of outdoor three-phase electronic type voltage transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |