CN221633430U - Novel low-voltage quick reactive power compensation device - Google Patents
Novel low-voltage quick reactive power compensation device Download PDFInfo
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- CN221633430U CN221633430U CN202420115978.1U CN202420115978U CN221633430U CN 221633430 U CN221633430 U CN 221633430U CN 202420115978 U CN202420115978 U CN 202420115978U CN 221633430 U CN221633430 U CN 221633430U
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- 238000004891 communication Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model relates to a novel low-voltage rapid reactive power compensation device. The technical proposal is as follows: the load end currents of the first low-voltage reactive power generator and the second low-voltage reactive power generator are connected to a first current transformer, a second current transformer and a third current transformer close to the load side through wires respectively, the first current transformer is installed in the power grid A phase incoming line, the second current transformer is installed in the power grid B phase incoming line, and the third current transformer is installed in the power grid C phase incoming line. The beneficial effects are that: according to the utility model, the first low-voltage reactive power generator and the second low-voltage reactive power generator are connected in parallel through the parallel connection interface and the lead, so that harmonic compensation can be realized, the installation is simple, the construction is easy, and the field installation efficiency is improved.
Description
Technical Field
The utility model relates to a low-voltage reactive power compensation device, in particular to a novel low-voltage rapid reactive power compensation device.
Background
In oil exploitation, the pumping unit is a main device, and the pumping unit has higher power in the process of lifting oil extraction, and the load of the pumping unit connected with an alternating current power grid can generate harmonic waves in the working process, so that pollution is generated on the power grid side. The voltage fluctuation caused by the generated reactive power impact can influence the normal operation of electric equipment, reactive power must be compensated for to eliminate the voltage fluctuation, and the problems of on-site harmonic compensation, reactive power compensation, three-phase imbalance compensation and the like are generally solved, the harmonic compensation cannot be realized, the situation of insufficient compensation exists, and the installation difficulty is high.
Disclosure of utility model
The utility model aims at overcoming the defects existing in the prior art, and provides the novel low-voltage rapid reactive power compensation device which can realize harmonic compensation by connecting two groups of low-voltage reactive power generators in parallel and then installing the low-voltage reactive power generators on a load side, and is simple to install and easy to construct.
The utility model relates to a novel low-voltage rapid reactive power compensation device, which adopts the technical scheme that: the load-side low-voltage reactive power generation system comprises a power grid side 1, a load side 2, a first low-voltage reactive power generator 3, a second low-voltage reactive power generator 4, a first current transformer 5, a second current transformer 6, a third current transformer 7, a power grid A phase incoming line 8, a power grid B phase incoming line 9, a power grid C phase incoming line 10 and a power grid N phase incoming line 11, wherein the power grid A phase incoming line 8, the power grid B phase incoming line 9, the power grid C phase incoming line 10 and the power grid N phase incoming line 11 on one side of the power grid side 1 are connected in parallel with the first low-voltage reactive power generator 3 and the second low-voltage reactive power generator 4 through wires respectively, load-end currents of the first low-voltage reactive power generator 3 and the second low-voltage reactive power generator 4 are connected to the first current transformer 5, the second current transformer 6 and the third current transformer 7 which are close to the load side 2 through wires respectively, the first current transformer 5 is installed on the power grid A phase incoming line 8, the second current transformer 6 and the third current transformer 7 is installed on the power grid B phase incoming line 9, and the third current transformer 7 is installed on the power grid B phase incoming line 9.
Preferably, one side of the first low-voltage reactive power generator 3 and one side of the second low-voltage reactive power generator 4 are provided with a strong current terminal 3.1 and a mutual inductor terminal 3.2, wherein the strong current terminal 3.1 is used for connecting four strong current wires, and the four strong current wires are a power grid A phase incoming line 8, a power grid B phase incoming line 9, a power grid C phase incoming line 10 and a power grid N phase incoming line 11 respectively; the transformer terminals 3.2 are used for connecting the terminals of the first current transformer 5, the second current transformer 6 and the third current transformer 7.
Preferably, one side of the first low-voltage reactive power generator 3 and one side of the second low-voltage reactive power generator 4 are further provided with a grounding wire 3.3, a spare transformer terminal 3.4, a communication interface 3.5, a display screen wiring port 3.6 and a parallel connection interface 3.7, one end of the grounding wire 3.3 is connected to an upper side shell of the first low-voltage reactive power generator 3, the spare transformer terminal 3.4 is positioned on one side of the transformer terminal 3.2, and is connected to the second low-voltage reactive power generator 4 through the parallel connection interface 3.7 and a wire; the display screen is connected with the lead through the display screen wiring port 3.6.
Preferably, the left side of the first low-voltage reactive power generator 3 and the second low-voltage reactive power generator 4 is provided with a heat dissipation hole 3.8, and the right side is provided with a heat dissipation fan 3.9.
Preferably, the P1 terminal of each group of current transformers is connected with the power grid side 1, and the P2 terminal is connected with the load side 2; the secondary side current of each group of current transformers flows out from the secondary terminal S1, enters the low-voltage reactive power generator and flows into the secondary terminal S2 of the current transformer.
The beneficial effects of the utility model are as follows: the utility model connects the first low-voltage reactive power generator and the second low-voltage reactive power generator in parallel through the parallel connection interface and the lead, connects four wires on one side of the power grid in parallel with the strong current terminals of the first low-voltage reactive power generator and the second low-voltage reactive power generator through the lead respectively; the three-phase wire is quickly connected to one end close to the load side through a first current transformer, a second current transformer and a third current transformer, the P1 terminal of each group of current transformers is respectively connected with the power grid side, and the P2 terminal of each group of current transformers is connected with the load side; the secondary side current of each group of current transformers flows out from the secondary terminal S1, flows into the secondary terminal S2 of the current transformer after entering the low-voltage reactive power generator, and is connected with the two groups of low-voltage reactive power generators in parallel and then is arranged on the load side, so that harmonic compensation can be realized, the installation is simple, the construction is easy, and the field installation efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the connection of embodiment 1 of the present utility model;
FIG. 2 is a schematic diagram of the front structure of a low voltage reactive generator;
FIG. 3 is a schematic top view of a low voltage reactive generator;
FIG. 4 is a schematic diagram of the structure of the low voltage reactive generator in the left view direction;
FIG. 5 is a schematic diagram of the structure of the low voltage reactive generator in the right view;
FIG. 6 is a schematic diagram of a current transformer;
FIG. 7 is a schematic diagram of the connection of embodiment 2 of the present utility model;
In the upper graph: the power grid side 1, the load side 2, the first low-voltage reactive power generator 3, the second low-voltage reactive power generator 4, the first current transformer 5, the second current transformer 6, the third current transformer 7, the power grid A phase incoming line 8, the power grid B phase incoming line 9, the power grid C phase incoming line 10, the power grid N phase incoming line 11, the strong current terminal 3.1, the transformer terminal 3.2, the grounding wire 3.3, the standby transformer terminal 3.4, the communication interface 3.5, the display screen wiring port 3.6, the parallel interface 3.7, the heat dissipation hole 3.8 and the heat dissipation fan 3.9.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Referring to fig. 1, the novel low-voltage quick reactive compensation device comprises a power grid side 1, a load side 2, a first low-voltage reactive generator 3, a second low-voltage reactive generator 4, a first current transformer 5, a second current transformer 6, a third current transformer 7, a power grid A phase incoming line 8, a power grid B phase incoming line 9, a power grid C phase incoming line 10 and a power grid N phase incoming line 11, wherein the power grid A phase incoming line 8, the power grid B phase incoming line 9, the power grid C phase incoming line 10 and the power grid N phase incoming line 11 are connected between the power grid side 1 and the load side 2, the power grid A phase incoming line 8, the power grid B phase incoming line 9, the power grid C phase incoming line 10 and the power grid N phase incoming line 11 on one side of the power grid side 1 are respectively connected with the first low-voltage reactive generator 3 and the second low-voltage reactive generator 4 through wires, load ends of the first low-voltage reactive generator 3 and the second low-voltage reactive generator 4 are respectively connected to the first current transformer 5, the second current transformer 6 and the third current transformer 6 and the power grid B phase incoming line 7 which are close to the load side 2 through wires, the first current transformer 6 and the third current transformer 7 are installed on the power grid A phase incoming line 7 and the power grid B phase incoming line 10 and the second current transformer 10 is installed on the power grid phase transformer 6.
Referring to fig. 2-5, one side of the first low-voltage reactive power generator 3 and the second low-voltage reactive power generator 4 is provided with a strong current terminal 3.1 and a mutual inductor terminal 3.2, wherein the strong current terminal 3.1 is used for connecting four strong current wires, and the four strong current wires are a power grid a phase incoming line 8, a power grid B phase incoming line 9, a power grid C phase incoming line 10 and a power grid N phase incoming line 11 respectively; the transformer terminals 3.2 are used for connecting the terminals of the first current transformer 5, the second current transformer 6 and the third current transformer 7.
One side of the first low-voltage reactive power generator 3 and one side of the second low-voltage reactive power generator 4 are also provided with a grounding wire 3.3, a standby transformer terminal 3.4, a communication interface 3.5, a display screen wiring port 3.6 and a parallel connection interface 3.7, one end of the grounding wire 3.3 is connected to the upper side shell of the first low-voltage reactive power generator 3, the standby transformer terminal 3.4 is positioned on one side of the transformer terminal 3.2, and is connected to the second low-voltage reactive power generator 4 through the parallel connection interface 3.7 and a wire; the display screen is connected with the lead through the display screen wiring port 3.6.
The left side of the first low-voltage reactive power generator 3 and the second low-voltage reactive power generator 4 is provided with a radiating hole 3.8, and the right side is provided with a radiating fan 3.9.
In addition, the P1 terminal of each group of current transformers is respectively connected with the power grid side 1, and the P2 terminal is connected with the load side 2; the secondary side current of each group of current transformers flows out from the secondary terminal S1, enters the low-voltage reactive power generator and flows into the secondary terminal S2 of the current transformer.
When the high-voltage reactive power generation system is used, the first low-voltage reactive power generator 3 and the second low-voltage reactive power generator 4 are connected in parallel with a wire through a parallel interface 3.7, and then a strong current terminal 3.1 of the first low-voltage reactive power generator 3 and the second low-voltage reactive power generator 4 is connected in parallel with a power grid A phase incoming line 8, a power grid B phase incoming line 9, a power grid C phase incoming line 10 and a power grid N phase incoming line 11 on one side of a power grid side 1 through wires respectively; the first current transformer 5, the second current transformer 6 and the third current transformer 7 are quickly connected to a power grid A phase incoming line 8, a power grid B phase incoming line 9 and a power grid C phase incoming line 10 which are close to one end of the load side 2, and are connected to transformer terminals 3.2 of the first low-voltage reactive power generator 3 and the second low-voltage reactive power generator 4 through wires; in addition, the P1 terminal of each group of current transformers is respectively connected with the power grid side 1, and the P2 terminal is connected with the load side 2; the secondary side current of each group of current transformers flows out from the secondary terminal S1, enters the low-voltage reactive power generator and flows into the secondary terminal S2 of the current transformer.
The embodiment 2 of the utility model relates to a novel low-voltage quick reactive compensation device, which comprises a power grid side 1, a load side 2, a first low-voltage reactive generator 3, a second low-voltage reactive generator 4, a first current transformer 5, a second current transformer 6, a third current transformer 7, a power grid A phase incoming line 8, a power grid B phase incoming line 9, a power grid C phase incoming line 10 and a power grid N phase incoming line 11, wherein the power grid A phase incoming line 8, the power grid B phase incoming line 9, the power grid C phase incoming line 10 and the power grid N phase incoming line 11 are connected between the power grid side 1 and the load side 2, the power grid A phase incoming line 8, the power grid B phase incoming line 9, the power grid C phase incoming line 10 and the power grid N phase incoming line 11 on the power grid side 1 are connected in parallel with the first low-voltage reactive generator 3 and the second low-voltage reactive generator 4 through wires respectively, load end currents of the first low-voltage reactive generator 3 and the second low-voltage reactive generator 4 are connected to the first current transformer 5, the second current transformer 6 and the third current transformer 7 close to the load side 2 through wires respectively, the first current transformer 6 and the third current transformer 7 are installed on the power grid A phase incoming line 8 and the power grid B phase incoming line 10 and the third current transformer 7 is installed on the power grid B phase incoming line 7.
The difference from example 1 is that:
Referring to fig. 7, the transformer terminal 3.2 of the first low voltage reactive generator 3 is provided with an A1 end, an A2 end, a B1 end, a B2 end, a C1 end, a C2 end, the transformer terminal 3.2 of the second low voltage reactive generator 4 is provided with an A1 end, an A2 end, a B1 end, a B2 end, a C1 end, a C2 end,
Wherein, the A1 end of the first low-voltage reactive generator 3 is connected to the S1 end of the first current transformer 5 through a wire, the A2 end is connected to the A1 end of the second low-voltage reactive generator 4 through a wire, and the A2 end is connected to the S2 end of the first current transformer 5 through a wire;
The end B1 of the first low-voltage reactive power generator 3 is connected to the end S1 of the second current transformer 6 through a wire, the end B2 is connected to the end B1 of the second low-voltage reactive power generator 4 through a wire, and the end B2 is connected to the end S2 of the second current transformer 6 through a wire;
The C1 end of the first low voltage reactive generator 3 is connected to the S1 end of the third current transformer 7 by a wire, the C2 end is connected to the C1 end of the second low voltage reactive generator 4 by a wire, and the C2 end is connected to the S2 end of the third current transformer 7 by a wire.
The above description is of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.
Claims (5)
1. A novel low-voltage quick reactive power compensation device is characterized in that: comprises a power grid side (1), a load side (2), a first low-voltage reactive generator (3), a second low-voltage reactive generator (4), a first current transformer (5), a second current transformer (6), a third current transformer (7), a power grid A phase incoming line (8), a power grid B phase incoming line (9), a power grid C phase incoming line (10) and a power grid N phase incoming line (11), wherein the power grid side (1) and the load side (2) are connected with the power grid A phase incoming line (8), the power grid B phase incoming line (9), the power grid C phase incoming line (10) and the power grid N phase incoming line (11) on one side of the power grid side (1), the first low-voltage reactive generator (3) and the second low-voltage reactive generator (4) are connected in parallel through wires respectively, the load end currents of the first low-voltage reactive generator (3) and the second low-voltage reactive generator (4) are connected to the first current transformer (5), the second current transformer (6) and the second current transformer (6) which are close to the load side (2) through wires respectively, the first current transformer (6) and the second current transformer (6) are arranged on one side of the power grid side (1), the third current transformer (7) is arranged on a C-phase incoming line (10) of the power grid.
2. The novel low-voltage fast reactive power compensation device according to claim 1, characterized in that: one side of the first low-voltage reactive power generator (3) and one side of the second low-voltage reactive power generator (4) are provided with a strong current terminal (3.1) and a mutual inductor terminal (3.2), the strong current terminal (3.1) is used for connecting four strong current wires, and the four strong current wires are a power grid A phase incoming line (8), a power grid B phase incoming line (9), a power grid C phase incoming line (10) and a power grid N phase incoming line (11) respectively; the transformer terminals (3.2) are used for connecting the terminals of the first current transformer (5), the second current transformer (6) and the third current transformer (7).
3. The novel low-voltage fast reactive power compensation device according to claim 2, characterized in that: one side of the first low-voltage reactive power generator (3) and one side of the second low-voltage reactive power generator (4) are further provided with a grounding wire (3.3), a standby transformer terminal (3.4), a communication interface (3.5), a display screen wiring port (3.6) and a parallel connection interface (3.7), one end of the grounding wire (3.3) is connected to an upper side shell of the first low-voltage reactive power generator (3), the standby transformer terminal (3.4) is located at one side of the transformer terminal (3.2), and is connected to the second low-voltage reactive power generator (4) through the parallel connection interface (3.7) and a lead; the display screen is connected with the lead through a display screen wiring port (3.6).
4. A novel low-voltage fast reactive power compensation device according to claim 3, characterized in that: the left sides of the first low-voltage reactive generator (3) and the second low-voltage reactive generator (4) are provided with radiating holes (3.8), and the right sides of the first low-voltage reactive generator and the second low-voltage reactive generator are provided with radiating fans (3.9).
5. The novel low-voltage fast reactive power compensation device according to claim 4, wherein: the P1 terminal of each group of current transformers is connected with the power grid side (1) respectively, and the P2 terminal is connected with the load side (2); the secondary side current of each group of current transformers flows out from the secondary terminal S1, enters the low-voltage reactive power generator and flows into the secondary terminal S2 of the current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420115978.1U CN221633430U (en) | 2024-01-17 | 2024-01-17 | Novel low-voltage quick reactive power compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420115978.1U CN221633430U (en) | 2024-01-17 | 2024-01-17 | Novel low-voltage quick reactive power compensation device |
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| CN221633430U true CN221633430U (en) | 2024-08-30 |
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| CN202420115978.1U Active CN221633430U (en) | 2024-01-17 | 2024-01-17 | Novel low-voltage quick reactive power compensation device |
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| CN (1) | CN221633430U (en) |
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- 2024-01-17 CN CN202420115978.1U patent/CN221633430U/en active Active
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