CN205786816U - A kind of electronic type voltage current transformer - Google Patents
A kind of electronic type voltage current transformer Download PDFInfo
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- CN205786816U CN205786816U CN201620670136.8U CN201620670136U CN205786816U CN 205786816 U CN205786816 U CN 205786816U CN 201620670136 U CN201620670136 U CN 201620670136U CN 205786816 U CN205786816 U CN 205786816U
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Abstract
The utility model discloses a kind of electronic type voltage current transformer, including housing and be arranged on the A phase voltage current collection circuit of enclosure interior, B phase voltage current collection circuit and C phase voltage current collection circuit, A phase voltage current collection circuit includes A phase coil and the resistance R1 in parallel with A phase coil and the resistance R2 connected and resistance R3；B phase voltage current collection circuit includes B phase coil and the resistance R4 in parallel with B phase coil and the resistance R5 connected and resistance R6；C phase voltage current collection circuit includes C phase coil and the resistance R7 in parallel with C phase coil and the resistance R8 connected and resistance R9.This utility model simple in construction, reasonable in design, it is achieved convenient and low cost, in-site installation is easy to use, it is possible to increase the accuracy of power measurement, practical, and application value is high.
Description
Technical field
This utility model belongs to power system automation technology field, is specifically related to a kind of electronic type voltage Current Mutual Inductance
Device.
Background technology
In the construction of distribution automation system, the power taking problem of automation equipment is always distribution line upgrading
One big bottleneck, have utilizes high voltage potential transformer power taking, and have utilizes high-tension current inductor power taking, and also have utilizes the sun
Energy TRT power taking, also exists a lot of drawback.Implementing and in application or investment is big, or wiring be complicated and unreliable,
It is also possible to affected by extraneous factors such as environment position, weather and payload, thus limit the development of distribution automation.
And, prior art also cannot the most accurately be measured three-phase current, three-phase phase voltage and current/voltage phase contrast.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, it is provided that a kind of electronics
Formula voltage current transformer, its simple in construction, reasonable in design, it is achieved convenient and low cost, in-site installation is easy to use, it is possible to carry
The accuracy that high power is measured, practical, application value is high.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of electronic type voltage Current Mutual Inductance
Device, it is characterised in that: include housing and be arranged on the A phase voltage current collection circuit of enclosure interior, B phase voltage current acquisition
Circuit and C phase voltage current collection circuit, described A phase voltage current collection circuit includes A phase coil and in parallel with A phase coil
Resistance R1 and the resistance R2 and resistance R3 of series connection, the two ends of described resistance R1 are that the A phase of A phase voltage current collection circuit is adopted
Colleeting comb outfan and connection have A phase acquisition electric current output lead, and the two ends of described resistance R3 are A phase voltage current collection circuit
A phase acquisition voltage output end and connection have A phase acquisition voltage output lead；Described B phase voltage current collection circuit includes B phase
Coil and the resistance R4 in parallel with B phase coil and the resistance R5 connected and resistance R6, the two ends of described resistance R4 are that B phase is electric
The B phase acquisition current output terminal of current voltage Acquisition Circuit and connection have B phase acquisition electric current output lead, the two ends of described resistance R6
B phase acquisition voltage output end and connection for B phase voltage current collection circuit have B phase acquisition voltage output lead；Described C phase is electric
Current voltage Acquisition Circuit includes C phase coil and the resistance R7 in parallel with C phase coil and the resistance R8 connected and resistance R9, institute
The C phase acquisition current output terminal that two ends are C phase voltage current collection circuit and the connection of stating resistance R7 have C phase acquisition electric current to export
Wire, the two ends of described resistance R9 are the C phase acquisition voltage output end of C phase voltage current collection circuit and connection has C phase acquisition
Voltage output lead.
Above-mentioned a kind of electronic type voltage current transformer, it is characterised in that: described housing include being transversely mounted part and
Longitudinally connected part, described in be transversely mounted part include A phase mounting portion, B phase mounting portion and C phase mounting portion, described A phase
Mounting portion and B phase mounting portion are telescopic joint by the first cluster parachute, and described B phase mounting portion and C phase mounting portion are by the
Two cluster parachutes are telescopic joint, and described A phase mounting portion is provided with the A phase installing hole that the A phase line of power supply cable passes, described A phase
Coil is arranged around A phase installing hole, and the A phase line of described power supply cable passes A phase coil；It is provided with on described B phase mounting portion
The B phase installing hole that the B phase line of power supply cable passes, described B phase coil is arranged around B phase installing hole, the B phase of described power supply cable
Line passes B phase coil；The C phase installing hole that the C phase line of power supply cable passes, described C phase line it is provided with on described C phase mounting portion
Enclosing and arrange around C phase installing hole, the C phase line of described power supply cable passes C phase coil；Described longitudinally connected part includes being connected to
In B phase is installed longitudinal cluster parachute sleeve pipe of section bottom and is arranged on longitudinal cluster parachute sleeve pipe and pass the output of longitudinal cluster parachute sleeve pipe and lead
Line, described output lead is by described A phase acquisition electric current output lead, A phase acquisition voltage output lead, the output of B phase acquisition electric current
Wire, B phase acquisition voltage output lead, C phase acquisition electric current output lead and C phase acquisition voltage output lead collect and form.
This utility model compared with prior art has the advantage that
1, simple in construction of the present utility model, reasonable in design, it is achieved convenient and low cost.
2, this utility model is the most easy to install.
3, this utility model A, B, C measures mutually and protects a shared coil, can under the highest primary current,
Can be without saturated high-acruracy survey short circuit current, and output voltage signal.
4, this utility model can make the electric current measured by secondary device and voltage signal phase contrast the least, thus improves merit
The accuracy that rate is measured.
5, this utility model can be used in accurately measuring three-phase current, three-phase phase voltage and current/voltage phase contrast, incite somebody to action this
Utility model is applied on-board the circuit breaker, it is possible to reduce the loss brought due to power failure to people's productive life.
6, of the present utility model practical, application value is high.
In sum, this utility model simple in construction, reasonable in design, it is achieved convenient and low cost, in-site installation user
Just, it is possible to increase the accuracy of power measurement, practical, application value is high.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 A is the circuit theory diagrams of this utility model A phase voltage current collection circuit.
Fig. 2 B is the circuit theory diagrams of this utility model B phase voltage current collection circuit.
Fig. 2 C is the circuit theory diagrams of this utility model C phase voltage current collection circuit.
Description of reference numerals:
1 housing；1-1 A phase mounting portion；1-2 B phase mounting portion；
1-3 C phase mounting portion；1-4 the first cluster parachute sleeve pipe；1-5 the second cluster parachute sleeve pipe；
1-6 longitudinal direction cluster parachute sleeve pipe；1-7 C phase installing hole；1-8 output lead；
1-9 A phase installing hole；1-10 B phase installing hole；2 A phase coils；
3 B phase coils；4 C phase coils.
Detailed description of the invention
A kind of electronic type voltage current transformer as shown in Figure 1, including housing 1 and be arranged on the A phase within housing 1
Voltage x current Acquisition Circuit, B phase voltage current collection circuit and C phase voltage current collection circuit, as shown in Figure 2 A, described A phase
Voltage x current Acquisition Circuit include A phase coil 2 and with the resistance R1 and the resistance R2 connected of A phase coil 2 parallel connection and resistance
R3, the two ends of described resistance R1 are the A phase acquisition current output terminal (Ia+ and Ia-in Fig. 2 A) of A phase voltage current collection circuit
And connection has A phase acquisition electric current output lead, the two ends of described resistance R3 are the A phase acquisition electricity of A phase voltage current collection circuit
Pressure outfan (Ua+ and Ua-in Fig. 2 A) and connection have A phase acquisition voltage output lead；As shown in Figure 2 B, described B phase voltage
Current collection circuit include B phase coil 3 and with the resistance R4 of B phase coil 3 parallel connection and the resistance R5 connected and resistance R6, institute
State B phase acquisition current output terminal (Ib+ and Ib-in Fig. 2 B) that two ends are B phase voltage current collection circuit of resistance R4 and connect
Being connected to B phase acquisition electric current output lead, the two ends of described resistance R6 are that the B phase acquisition voltage of B phase voltage current collection circuit is defeated
Go out end (Ub+ and Ub-in Fig. 2 B) and connection has B phase acquisition voltage output lead；As shown in Figure 2 C, described C phase voltage electric current
Acquisition Circuit include C phase coil 4 and with the resistance R7 of C phase coil 4 parallel connection and the resistance R8 connected and resistance R9, described electricity
C phase acquisition current output terminal (Ic+ and Ic-in Fig. 2 C) that two ends are C phase voltage current collection circuit and the connection of resistance R7 have C
Phase acquisition electric current output lead, the two ends of described resistance R9 are the C phase acquisition voltage output end of C phase voltage current collection circuit
(Uc+ and Uc-in Fig. 2 C) and connection have C phase acquisition voltage output lead.
As it is shown in figure 1, in the present embodiment, described housing 1 includes being transversely mounted part and longitudinally connected part, described laterally
Mounting portion includes A phase mounting portion 1-1, B phase mounting portion 1-2 and C phase mounting portion 1-3, described A phase mounting portion 1-1
Being connected by the first cluster parachute sleeve pipe 1-4 with B phase mounting portion 1-2, described B phase mounting portion 1-2 and C phase mounting portion 1-3 leads to
Crossing the second cluster parachute sleeve pipe 1-5 to connect, the A phase that passes of A phase line that described A phase mounting portion 1-1 is provided with power supply cable is installed
Hole 5, described A phase coil 2 is arranged around A phase installing hole 5, and the A phase line of described power supply cable passes A phase coil 2；Described B lives in peace with each other
Being provided with the B phase installing hole 6 that the B phase line of power supply cable passes in dress part 1-2, described B phase coil 3 sets around B phase installing hole 6
Putting, the B phase line of described power supply cable passes B phase coil 3；The C phase line of power supply cable it is provided with on described C phase mounting portion 1-3
The C phase installing hole 1-7 passed, described C phase coil 4 is arranged around C phase installing hole 1-7, and the C phase line of described power supply cable passes C
Phase coil 4；Described longitudinally connected part includes the longitudinal cluster parachute sleeve pipe 1-6 being connected to bottom B phase mounting portion 1-2 and is arranged on
In longitudinal cluster parachute sleeve pipe 1-6 and pass the output lead 1-8 of longitudinal cluster parachute sleeve pipe 1-6, described output lead 1-8 is by described A phase
Gather electric current output lead, A phase acquisition voltage output lead, B phase acquisition electric current output lead, B phase acquisition voltage output lead,
C phase acquisition electric current output lead and C phase acquisition voltage output lead collect and form.
When this utility model uses, by the A phase line of cable through A phase installing hole 5, by the B phase line of cable through B phase
Installing hole 6, by the C phase line of cable through C phase installing hole 7, and by A phase acquisition electric current output lead, the output of B phase acquisition electric current
It is electric that wire is respectively connecting to the A phase current input of foreign current signal conditioning circuit, B phase with C phase acquisition electric current output lead
Stream input and C phase current input, and by A phase acquisition voltage output lead, B phase acquisition voltage output lead and C phase acquisition
Voltage output lead is respectively connecting to the A phase voltage input of external voltage signal modulate circuit, B phase voltage input and C phase
Voltage input end, it is possible to for accurately measuring the three-phase current of cable, three-phase phase voltage and current/voltage phase contrast, additionally it is possible to
For accurately measuring power.
The above, be only preferred embodiment of the present utility model, not impose any restrictions this utility model, every
Any simple modification, change and equivalent structure change above example made according to this utility model technical spirit, the most still
Belong in the protection domain of technical solutions of the utility model.
Claims (2)
1. an electronic type voltage current transformer, it is characterised in that: include housing (1) and be arranged on the A that housing (1) is internal
Phase voltage current collection circuit, B phase voltage current collection circuit and C phase voltage current collection circuit, described A phase voltage electric current is adopted
Collector includes A phase coil (2) and the resistance R1 in parallel with A phase coil (2) and the resistance R2 connected and resistance R3, described
The two ends of resistance R1 are the A phase acquisition current output terminal of A phase voltage current collection circuit and connection has the output of A phase acquisition electric current to lead
Line, the two ends of described resistance R3 are the A phase acquisition voltage output end of A phase voltage current collection circuit and connection has A phase acquisition electricity
Pressure output lead；Described B phase voltage current collection circuit include B phase coil (3) and the resistance R4 in parallel with B phase coil (3), with
And the resistance R5 and resistance R6 of series connection, the two ends of described resistance R4 are the B phase acquisition electric current output of B phase voltage current collection circuit
End and connection have B phase acquisition electric current output lead, and the two ends of described resistance R6 are the B phase acquisition of B phase voltage current collection circuit
Voltage output end and connection have B phase acquisition voltage output lead；Described C phase voltage current collection circuit include C phase coil (4) and
The resistance R7 in parallel with C phase coil (4) and the resistance R8 connected and resistance R9, the two ends of described resistance R7 are C phase voltage electricity
C phase acquisition current output terminal and the connection of stream Acquisition Circuit have C phase acquisition electric current output lead, and the two ends of described resistance R9 are C
The C phase acquisition voltage output end of phase voltage current collection circuit and connection have C phase acquisition voltage output lead.
2. according to a kind of electronic type voltage current transformer described in claim 1, it is characterised in that: described housing (1) includes
Be transversely mounted part and longitudinally connected part, described in be transversely mounted part include A phase mounting portion (1-1), B phase mounting portion
(1-2) with C phase mounting portion (1-3), described A phase mounting portion (1-1) and B phase mounting portion (1-2) are by the first cluster parachute set
Pipe (1-4) connects, and described B phase mounting portion (1-2) and C phase mounting portion (1-3) are connected by the second cluster parachute sleeve pipe (1-5),
A phase installing hole (1-9) that the A phase line of power supply cable passes, described A phase coil it is provided with on described A phase mounting portion (1-1)
(2) arranging around A phase installing hole (1-9), the A phase line of described power supply cable passes A phase coil (2)；Described B phase mounting portion
(1-2) being provided with B phase installing hole (1-10) that the B phase line of power supply cable passes on, described B phase coil (3) is around B phase installing hole
(1-10) arranging, the B phase line of described power supply cable passes B phase coil (3)；It is provided with power supply on described C phase mounting portion (1-3)
C phase installing hole (1-7) that the C phase line of cable passes, described C phase coil (4) is arranged around C phase installing hole (1-7), described power supply
The C phase line of cable passes C phase coil (4)；Described longitudinally connected part includes being connected to the vertical of bottom, B phase mounting portion (1-2)
To cluster parachute sleeve pipe (1-6) with in being arranged on longitudinal cluster parachute sleeve pipe (1-6) and pass the output lead of longitudinal direction cluster parachute sleeve pipe (1-6)
(1-8), described output lead (1-8) is by described A phase acquisition electric current output lead, A phase acquisition voltage output lead, B phase acquisition
Electric current output lead, B phase acquisition voltage output lead, C phase acquisition electric current output lead and C phase acquisition voltage output lead collect
Form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620670136.8U CN205786816U (en) | 2016-06-29 | 2016-06-29 | A kind of electronic type voltage current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620670136.8U CN205786816U (en) | 2016-06-29 | 2016-06-29 | A kind of electronic type voltage current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205786816U true CN205786816U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620670136.8U Active CN205786816U (en) | 2016-06-29 | 2016-06-29 | A kind of electronic type voltage current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205786816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283381A (en) * | 2018-09-29 | 2019-01-29 | 广东米勒电气有限公司 | A kind of electronic voltage transducer and application method |
-
2016
- 2016-06-29 CN CN201620670136.8U patent/CN205786816U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283381A (en) * | 2018-09-29 | 2019-01-29 | 广东米勒电气有限公司 | A kind of electronic voltage transducer and application method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |