CN209860601U - Low-voltage reactive compensation fee control device - Google Patents
Low-voltage reactive compensation fee control device Download PDFInfo
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- CN209860601U CN209860601U CN201920876009.7U CN201920876009U CN209860601U CN 209860601 U CN209860601 U CN 209860601U CN 201920876009 U CN201920876009 U CN 201920876009U CN 209860601 U CN209860601 U CN 209860601U
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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 belongs to the distribution device field, concretely relates to low pressure reactive compensation takes accuse device, including measurement control unit, inlet wire unit, feeder unit, reactive compensation unit, the measurement control unit connects respectively on inlet wire unit and feeder unit, the reactive compensation unit is connected on the generating line of feeder unit. The utility model discloses circuit design is simple, and area is little, and the measurement control unit is equipped with collector, electric energy meter and electronic watch disk controller, and operation situation that demonstration reactive power compensator that can be accurate, and many places are equipped with overvoltage protection device, prevent the damage that other transient overvoltage caused to alternating current power supply system and consumer. The utility model is used for carry out reactive compensation to the load under the low voltage power supply, implement real-time charge accuse to the power consumption.
Description
Technical Field
The utility model belongs to the distribution device field, concretely relates to low pressure reactive compensation takes accuse device.
Background
As the load on the power system increases, the need for reactive power compensation also increases. The transmission of reactive power compensation in a power grid can cause network loss and voltage drop of a power receiving end, so that the utilization rate of electric energy is greatly reduced, and the power supply quality is seriously influenced. Therefore, installing a reactive power compensation device at a proper position in the power grid is a necessary means for meeting the reactive power requirement of the power grid, and in addition, in order to solve the contradiction between power supply and power utilization, a power supply party needs to implement necessary cost control measures on the power utilization party. However, most of the currently used reactive power compensation devices display the operation status of the reactive power compensation device by using instrument devices such as a voltmeter, an ammeter and a power factor meter and an indicator light, and are separately provided with a fee control device. The consequences of multiple devices are large footprint and complex wiring. And many existing reactive power compensation devices cannot achieve over-voltage protection, so that potential safety hazards are large.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a measurement is accurate, structural design is compact, compensation takes accuse function to combine, use convenient low pressure reactive compensation and takes accuse device.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the utility model provides a low pressure reactive compensation takes accuse device which characterized in that: the intelligent power distribution system is characterized by comprising a metering control unit, an incoming line unit, a feeder line unit, a reactive compensation unit and a power distribution intelligent terminal, wherein the metering control unit is respectively connected to the incoming line unit and the feeder line unit, and the reactive compensation unit is connected to a bus of the feeder line unit.
The metering control unit comprises an electronic meter disk controller, an electric energy meter and a collector, the collector is respectively connected with the electric energy meter and the electronic meter disk controller through wires, and the electronic meter disk controller is connected with the incoming line side through wires.
The incoming line unit comprises an incoming line switch and a current transformer, and the incoming line switch passes through a wire and the current transformer.
The incoming line switch adopts an automatic tripping switch.
The feeder unit is provided with an outgoing line breaker which is positioned between the load and the bus.
The outgoing line circuit breaker adopts a molded case circuit breaker or a circuit breaker with residual current action protection electric appliance, and can adopt hanging arrangement.
And the buses of the feeder line unit and the reactive compensation unit are connected with surge protectors.
And the reactive compensation unit is connected with a lightning arrester.
The reactive compensation unit comprises a compensation capacitor bank of a compensation capacitor component, and the compensation capacitor bank are connected in parallel.
The switching elements of the common compensation capacitor bank and the branch compensation capacitor bank adopt a silicon controlled composite switch, an electromagnetic relay type switch or other inrush current-free switching switches.
Compared with the prior art, the utility model, the beneficial effect who has is:
the utility model discloses circuit design is simple, and area is little, and the measurement control unit is equipped with collector, electric energy meter and electronic watch disk controller, and operation that shows reactive power compensator that can be accurate, and many places are equipped with overvoltage protection device, have avoided the damage that other transient overvoltage caused AC power supply system and consumer effectively, can also satisfy the power supply side and to user's cost accuse requirement.
Drawings
FIG. 1 is a schematic diagram of the circuit connection of the present invention;
the system comprises a metering control unit 1, an incoming line unit 2, a feeder line unit 3, a reactive compensation unit 4, an electric energy meter 5, a collector 6, an electronic watch disk controller 7, an incoming line switch 8, a current transformer 9, an outgoing line breaker 10, a surge protector 11, a lightning arrester 12, a common compensation capacitor bank 13 and a sub compensation capacitor bank 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a low pressure reactive compensation takes controlling means, as shown in fig. 1, including measurement control unit 1, inlet wire unit 2, feeder unit 3, reactive compensation unit 4, measurement control unit 1 connects respectively on inlet wire unit 2 and feeder unit 3, and measurement control unit 1 can show reactive compensation device's operation conditions, reactive compensation unit 4 is connected on feeder unit 3's generating line, carries out reactive compensation to the load, distribution intelligent terminal 5 connects respectively on inlet wire unit 2, feeder unit 3's generating line and reactive compensation unit 4, adjusts and controls inlet wire unit 2, feeder unit 3 and reactive compensation unit 4.
Further, the metering control unit 1 comprises an electric energy meter 5, a collector 6 and an electronic watch disk controller 7, wherein the collector 6 is connected with the electric energy meter 5 and the electronic watch disk controller 7 through wires respectively, and the electronic watch disk controller 7 is connected with the wire inlet side through wires, so that the running state of the reactive power compensation device can be displayed more accurately, and the real-time fee control can be performed on the power utilization.
Further, the incoming line unit 2 includes an incoming line switch 8 and a current transformer 9, and the incoming line switch 8 passes through a wire and the current transformer 9.
Further, the incoming line switch 8 adopts an automatic tripping switch, and can receive tripping and closing signals of the intelligent power distribution terminal 5.
Further, the feeder unit 3 is provided with an outgoing line breaker 10, and the outgoing line breaker 10 is located between the load and the bus, and functions to cut off and switch on a load circuit and to cut off a fault circuit, thereby preventing an accident from being enlarged and ensuring safe operation.
Further, preferably, the outgoing line breaker 10 adopts a molded case circuit breaker or a circuit breaker with a residual current to operate a protection device, can automatically cut off the current after the current exceeds a trip setting, and preferably can adopt a hanging arrangement.
Furthermore, the bus of the feeder unit 3 and the reactive compensation unit 4 is connected with a surge protector 11, which can protect the bus from instantaneous overvoltage.
Further, the reactive power compensation unit 4 is connected with a lightning arrester 12, and overvoltage protection can be carried out on the reactive power compensation unit.
Further, the reactive compensation unit 4 includes a compensation capacitor bank 13 and a compensation capacitor bank 14, the compensation capacitor bank 13 and the compensation capacitor bank 14 are connected in parallel, when the three phases are balanced, the compensation capacitor bank 13 compensates the three phases with the same capacity, and when the three phases are unbalanced, the compensation capacitor bank 14 compensates the three phases respectively.
Further, preferably, the switching elements of the common compensation capacitor bank 13 and the sub-compensation capacitor bank 14 should adopt a thyristor combination switch, an electromagnetic relay type switch or other inrush current-free switching switches, so as to prevent the capacitor bank from being damaged by the transient overvoltage.
The utility model discloses a theory of operation: the running state of the reactive power compensation device is displayed through the metering control unit, the reactive power compensation is carried out on the common phase and the split phase through the reactive power compensation unit, and the real-time fee control is carried out on the electricity consumption of the user through the metering control unit.
The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.
Claims (10)
1. The utility model provides a low pressure reactive compensation takes accuse device which characterized in that: the system comprises a metering control unit (1), an inlet wire unit (2), a feeder line unit (3) and a reactive compensation unit (4), wherein the metering control unit (1) is respectively connected to the inlet wire unit (2) and the feeder line unit (3), and the reactive compensation unit (4) is connected to a bus of the feeder line unit (3).
2. The low-voltage reactive compensation fee control device according to claim 1, wherein: the metering control unit (1) comprises an electric energy meter (5), a collector (6) and an electronic watch disk controller (7), wherein the collector (6) is respectively connected with the electric energy meter (5) and the electronic watch disk controller (7) through wires, and the electronic watch disk controller (7) is connected with the wire inlet side through wires.
3. The low-voltage reactive compensation fee control device according to claim 1, wherein: the incoming line unit (2) comprises an incoming line switch (8) and a current transformer (9), and the incoming line switch (8) is connected with the current transformer (9) through a wire.
4. The low-voltage reactive compensation fee control device according to claim 3, wherein: the incoming line switch (8) adopts an automatic tripping switch.
5. The low-voltage reactive compensation fee control device according to claim 1, wherein: the feeder line unit (3) is provided with an outgoing line breaker (10), and the outgoing line breaker (10) is located between a load and a bus.
6. The low-voltage reactive compensation fee control device of claim 5, wherein: the outgoing line circuit breaker (10) adopts a molded case circuit breaker or a circuit breaker with residual current action to protect an electric appliance, and can adopt hanging arrangement.
7. The low-voltage reactive compensation fee control device according to claim 1, wherein: and the buses of the feeder line unit (3) and the reactive compensation unit (4) are connected with surge protectors (11).
8. The low-voltage reactive compensation fee control device according to claim 1, wherein: the reactive compensation unit (4) is connected with a lightning arrester (12).
9. The low-voltage reactive compensation fee control device according to claim 1, wherein: the reactive compensation unit (4) comprises a co-compensation capacitor bank (13) and a sub-compensation capacitor bank (14), and the co-compensation capacitor bank (13) and the sub-compensation capacitor bank (14) are connected in parallel.
10. The low-voltage reactive compensation fee control device of claim 9, wherein: the switching elements of the common compensation capacitor bank (13) and the sub-compensation capacitor bank (14) adopt a silicon controlled composite switch, an electromagnetic relay type switch or other inrush current-free switching switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920876009.7U CN209860601U (en) | 2019-06-12 | 2019-06-12 | Low-voltage reactive compensation fee control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920876009.7U CN209860601U (en) | 2019-06-12 | 2019-06-12 | Low-voltage reactive compensation fee control device |
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| Publication Number | Publication Date |
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| CN209860601U true CN209860601U (en) | 2019-12-27 |
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| CN201920876009.7U Active CN209860601U (en) | 2019-06-12 | 2019-06-12 | Low-voltage reactive compensation fee control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130124A (en) * | 2020-01-03 | 2020-05-08 | 深圳供电局有限公司 | Thyristor switched capacitor circuit branch and control method and manufacturing method thereof |
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2019
- 2019-06-12 CN CN201920876009.7U patent/CN209860601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130124A (en) * | 2020-01-03 | 2020-05-08 | 深圳供电局有限公司 | Thyristor switched capacitor circuit branch and control method and manufacturing method thereof |
| CN111130124B (en) * | 2020-01-03 | 2022-03-11 | 深圳供电局有限公司 | Thyristor switched capacitor circuit branch and control method and manufacturing method thereof |
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