CN216718515U - Special transformer for oil well with high-voltage metering function - Google Patents
Special transformer for oil well with high-voltage metering function Download PDFInfo
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- CN216718515U CN216718515U CN202122827320.2U CN202122827320U CN216718515U CN 216718515 U CN216718515 U CN 216718515U CN 202122827320 U CN202122827320 U CN 202122827320U CN 216718515 U CN216718515 U CN 216718515U
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Abstract
The utility model provides a special transformer for an oil well with a high-voltage metering function, wherein one end of a high-voltage side three-phase winding is connected with a power supply, a current transformer is arranged on the neutral point side of the high-voltage side three-phase winding, an electric field shielding device is arranged between the current transformer and the high-voltage side three-phase winding, and the current transformer is connected with a wiring terminal of a metering gauge through a secondary wire B; the low-voltage side three-phase winding is connected with an oil well load through a lead, and an electric field shielding device is arranged between the low-voltage side three-phase winding and the current transformer; the three-phase metering winding is connected with a wiring terminal of a meter through a secondary wire A, and an electric field shielding device is arranged between the three-phase metering winding and the current transformer; has the advantages that: the utility model combines the high-voltage metering box and the oil well transformer into a whole, reduces the workload of site construction and reduces the cost.
Description
Technical Field
The utility model relates to the field of electric energy metering, in particular to a special transformer for an oil well with a high-voltage metering function.
Background
At present, an oil well transformer provides a power supply for an oil well, and in order to accurately measure the electricity consumption of the oil well, a high-voltage metering box is arranged on the high-voltage side of the oil well transformer, so that the field construction workload is large, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art and provide a special transformer for an oil well with a high-voltage metering function.
The new technical scheme of the utility model is as follows: a special transformer for an oil well with a high-voltage metering function comprises a high-voltage side three-phase winding, a current transformer, a secondary wire, a meter, an oil well load, a wire, an electric field shielding device and a low-voltage winding, wherein the low-voltage winding comprises a low-voltage side three-phase winding and a three-phase metering winding, one end of the high-voltage side three-phase winding is connected with a power supply, the current transformer is installed on the neutral point side of the high-voltage side three-phase winding, the electric field shielding device is installed between the current transformer and the high-voltage side three-phase winding, and the current transformer is connected with a wiring terminal of the meter through a secondary wire B; the low-voltage side three-phase winding is connected with an oil well load through a lead, and an electric field shielding device is arranged between the low-voltage side three-phase winding and the current transformer; the three-phase metering winding is connected with a wiring terminal of a meter gauge through a secondary wire A, and an electric field shielding device is arranged between the three-phase metering winding and the current transformer.
And the neutral point side of the high-voltage side three-phase winding is low in voltage to ground.
The current transformer converts large current flowing through the high-voltage side three-phase winding into small current.
And the meter receives the voltage sent by the three-phase metering winding.
And the meter of the metering gauge receives the current sent by the current transformer.
The utility model has the beneficial effects that: the utility model combines the high-voltage metering box and the oil well transformer into a whole, reduces the workload of site construction and reduces the cost.
Drawings
FIG. 1 is a connection block diagram of the present invention.
Wherein: 1. the device comprises a high-voltage side three-phase winding 2, a current transformer 3, a low-voltage side three-phase winding 4, a conducting wire 5, an oil well load 6, a meter gauge 7, a secondary conducting wire B, a secondary conducting wire A, a secondary conducting wire 9, a three-phase metering winding 10 and an electric field shielding device.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
A special transformer for an oil well with a high-voltage metering function comprises a high-voltage side three-phase winding 1, a current transformer 2, a secondary lead, a meter 6, an oil well load 5, a lead 4, an electric field shielding device 10 and a low-voltage winding, wherein the low-voltage winding comprises a low-voltage side three-phase winding 3 and a three-phase metering winding 9, one end of the high-voltage side three-phase winding 1 is connected with a power supply, the current transformer 2 is installed on the neutral point side of the high-voltage side three-phase winding 1, the electric field shielding device 10 is installed between the current transformer 2 and the high-voltage side three-phase winding 1, and the current transformer 2 is connected with a wiring terminal of the meter 6 through a secondary lead B7; the low-voltage side three-phase winding 3 is connected with an oil well load 5 through a lead 4, and an electric field shielding device 10 is arranged between the low-voltage side three-phase winding 3 and the current transformer 2; the three-phase metering winding 9 is connected with a wiring terminal of the metering gauge 6 through a secondary wire A8, and an electric field shielding device 10 is arranged between the three-phase metering winding 9 and the current transformer 2.
The neutral point side of the high-voltage side three-phase winding 1 is low in voltage to ground.
The current transformer 2 converts large current flowing through the high-voltage side three-phase winding 1 into small current.
The meter 6 receives the voltage sent by the three-phase metering winding 9.
The meter 6 receives the current sent by the current transformer 2.
When a power supply is sent into a high-voltage side three-phase winding 1, a low-voltage side three-phase winding 3 generates working voltage required by an oil well load 5, and a three-phase metering winding 9 generates working voltage required by a meter 6; when an oil well operates, the current transformer 2 proportionally converts large current flowing through the high-voltage side three-phase winding 1 into small current, and the low-voltage side three-phase winding 3 is connected with an oil well load 5 through a lead 4; the three-phase metering winding 9 is connected with corresponding terminals of the meter gauge 6 through a secondary lead A8. The current transformer 2 is installed at the neutral point side close to the high-voltage side three-phase winding 1, the electric field shielding devices 10 are arranged between the current transformer 2 and the high-voltage side three-phase winding 1, between the current transformer 2 and the low-voltage side three-phase winding 3 and between the current transformer 2 and the three-phase metering winding 9, the interference of the electric fields of the high-voltage side three-phase winding 1, the low-voltage side three-phase winding 3 and the three-phase metering winding 9 on the current transformer 2 is eliminated, and the metering precision of the metering gauge 6 is guaranteed. When the meter 6 receives the voltage sent by the three-phase metering winding 9 and the current sent by the current transformer 2, the electric energy consumed by the oil well load 5 can be accurately metered.
Claims (5)
1. The utility model provides a special transformer of oil well with high-pressure measurement function, includes high pressure side three-phase winding (1), current transformer (2), secondary wire, strapping table meter (6), oil well load (5), wire (4), electric field shield assembly (10) and low voltage winding, low voltage winding include low pressure side three-phase winding (3) and three-phase strapping winding (9), its characterized in that: one end of the high-voltage side three-phase winding (1) is connected with a power supply, a current transformer (2) is installed on the neutral point side of the high-voltage side three-phase winding (1), an electric field shielding device (10) is installed between the current transformer (2) and the high-voltage side three-phase winding (1), and the current transformer (2) is connected with a wiring terminal of a meter gauge (6) through a secondary wire B (7); the low-voltage side three-phase winding (3) is connected with an oil well load (5) through a lead (4), and an electric field shielding device (10) is arranged between the low-voltage side three-phase winding (3) and the current transformer (2); the three-phase metering winding (9) is connected with a wiring terminal of the metering gauge (6) through a secondary wire A (8), and an electric field shielding device (10) is installed between the three-phase metering winding (9) and the current transformer (2).
2. The special transformer for oil wells with the high-voltage metering function as claimed in claim 1, wherein: the neutral point side of the high-voltage side three-phase winding (1) is low in voltage to ground.
3. The special transformer for oil wells with the high-voltage metering function as claimed in claim 1, wherein: the current transformer (2) converts large current flowing through the high-voltage side three-phase winding (1) into small current.
4. The special transformer for oil wells with the high-voltage metering function as claimed in claim 1, wherein: and the meter (6) receives the voltage sent by the three-phase metering winding (9).
5. The special transformer for oil wells with the high-voltage metering function as claimed in claim 1, wherein: and the meter (6) receives the current sent by the current transformer (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021218627164 | 2021-08-11 | ||
| CN202121862716 | 2021-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216718515U true CN216718515U (en) | 2022-06-10 |
Family
ID=81879459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122827320.2U Active CN216718515U (en) | 2021-08-11 | 2021-11-18 | Special transformer for oil well with high-voltage metering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216718515U (en) |
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2021
- 2021-11-18 CN CN202122827320.2U patent/CN216718515U/en active Active
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