CN204190504U - A kind of electric power power transmission and transformation system - Google Patents
A kind of electric power power transmission and transformation system Download PDFInfo
- Publication number
- CN204190504U CN204190504U CN201420707968.3U CN201420707968U CN204190504U CN 204190504 U CN204190504 U CN 204190504U CN 201420707968 U CN201420707968 U CN 201420707968U CN 204190504 U CN204190504 U CN 204190504U
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- power
- current transformer
- monitoring equipment
- line monitoring
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 230000001131 transforming Effects 0.000 title claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 239000004065 semiconductor Substances 0.000 claims description 27
- 230000001629 suppression Effects 0.000 claims description 11
- 230000001052 transient Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 3
- 230000005674 electromagnetic induction Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000001965 increased Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Abstract
The utility model relates to power monitoring system technical field, especially a kind of electric power power transmission and transformation system that can provide power supply to the on-line monitoring equipment of power transmission and transformation line.It comprises high voltage bus, current transformer, overcurrent protection and power adjusting circuit, management of charging and discharging circuit, on-line monitoring equipment and storage battery; Current transformer obtains the energy of high voltage bus; overcurrent protection and power adjusting circuit control the electric current of the secondary side of current transformer; to power directly to on-line monitoring equipment and by management of charging and discharging circuit to storage battery power supply, storage battery is powered to on-line monitoring equipment simultaneously.The utility model, when high voltage bus normal power supply, utilizes current transformer by management of charging and discharging circuit to batteries to store energy, powers to on-line monitoring equipment simultaneously; When high voltage bus is unloaded or have a power failure, the underpower that current transformer provides is to ensure the normal work of on-line monitoring equipment, and storage battery is powered to on-line monitoring equipment, to form stand-by power supply.
Description
Technical field
The utility model relates to power monitoring system technical field, especially a kind of electric power power transmission and transformation system that can provide power supply to the on-line monitoring equipment of power transmission and transformation line.
Background technology
In recent years, along with the develop rapidly of power industry, electric power system is towards the future development of high voltage, bulky capacitor, electric energy is inseparable with the relation of the development of national economy, the productive life of the people, ensure that the stable operation of electric power system is more and more important, once generation power outage, serious consequence will be brought.
In this context, transmission line on-line monitoring technique is widely applied, extensively, the power supply of the on-line monitoring equipment of ultra-high-tension power transmission line generally directly can not be supplied by low-pressure end for its monitoring function and increasing extent, and power supply supply becomes the key factor of restriction monitoring equipment development.
Therefore, reality sternness in the urgent need to a kind of can long-time running and provide the energy-provision way of enough power, to meet the loading demand day by day increased.
Utility model content
For the deficiency that above-mentioned prior art exists, the purpose of this utility model is to provide that a kind of structure is simple, stable output power, can provide the electric power power transmission and transformation system of power supply for the on-line monitoring equipment of high voltage power transmission and transforming circuit.
To achieve these goals, the utility model adopts following technical scheme:
A kind of electric power power transmission and transformation system, it comprises high voltage bus, current transformer, overcurrent protection and power adjusting circuit, management of charging and discharging circuit, on-line monitoring equipment and several storage batterys; Described current transformer obtains energy by the electromagnetic induction of high voltage bus overcoat magnetic conductor; described overcurrent protection and power adjusting circuit be connected to current transformer secondary side and by the Current Control of the secondary side of current transformer in the scope that system can be born; described overcurrent protection and power adjusting circuit are powered directly to on-line monitoring equipment and by management of charging and discharging circuit to storage battery power supply, described storage battery is powered to on-line monitoring equipment.
Preferably, described overcurrent protection and power adjusting circuit comprise the first metal-oxide-semiconductor, second metal-oxide-semiconductor and Transient Voltage Suppressor, described Transient Voltage Suppressor is connected to the secondary side of current transformer, the source electrode of described first metal-oxide-semiconductor and drain electrode are connected to the two ends of Transient Voltage Suppressor, the second resistance is connected with between the grid of described first metal-oxide-semiconductor and source electrode, the first resistance is connected with between grid and drain electrode, the source electrode of described second metal-oxide-semiconductor connects the drain electrode of the first metal-oxide-semiconductor, the source electrode of drain electrode connection first metal-oxide-semiconductor, the 3rd resistance is connected with between the grid of described second metal-oxide-semiconductor and source electrode, the 4th resistance is connected with between grid and drain electrode,
The drain electrode of described second metal-oxide-semiconductor is respectively at management of charging and discharging circuit and on-line monitoring equipment connection.
Preferably, described current transformer comprises the inductance core be socketed on high voltage bus, is wound around and getting energy coil and being connected to the regulator rectifier circuit getting energy coil on inductance core.
Owing to have employed such scheme, the utility model, when high voltage bus normal power supply, utilizes current transformer by management of charging and discharging circuit to batteries to store energy, meanwhile, powers directly to on-line monitoring equipment, to ensure the normal work of on-line monitoring equipment; When high voltage bus is unloaded or have a power failure, the electric current flow through is very little, the underpower that current transformer provides to ensure the normal work of on-line monitoring equipment, now, management of charging and discharging control circui storage battery is utilized to power to on-line monitoring equipment, to form stand-by power supply.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of the utility model embodiment;
Fig. 2 is the structural representation of the current transformer of the utility model embodiment;
Fig. 3 is the overcurrent protection of the utility model embodiment and the circuit structure diagram of power adjusting circuit;
Fig. 4 is the schematic diagram of the management of charging and discharging circuit of the utility model embodiment;
Fig. 5 is the circuit structure diagram of the management of charging and discharging circuit of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figures 1 to 5, a kind of electric power power transmission and transformation system that the present embodiment provides, it comprises high voltage bus 1, current transformer 2, overcurrent protection and power adjusting circuit 3, management of charging and discharging circuit 4 (can carry out circuit structure design with reference to figure 4 and Fig. 5), on-line monitoring equipment 5 and several storage batterys 6; Wherein, current transformer 2 obtains energy by the electromagnetic induction of the overcoat magnetic conductor of high voltage bus 1; overcurrent protection and power adjusting circuit 3 be connected to current transformer 2 secondary side and by the Current Control of the secondary side of current transformer 2 in the scope that system can be born; overcurrent protection and power adjusting circuit 3 are powered directly to on-line monitoring equipment 5 and are powered to storage battery 6 by management of charging and discharging circuit 4, and storage battery 6 is powered to on-line monitoring equipment 5.So, when high voltage bus 1 normal power supply, utilize current transformer 2 by management of charging and discharging circuit 4 to storage battery 6 energy storage electric power storage, meanwhile, power directly to on-line monitoring equipment 5, to ensure the normal work of on-line monitoring equipment 5; When high voltage bus 1 is unloaded or have a power failure, the electric current flow through is very little, the underpower that current transformer 2 provides to ensure the normal work of on-line monitoring equipment 5, now, utilize management of charging and discharging circuit 4 to control storage battery 6 to power to on-line monitoring equipment 5, to form stand-by power supply.
Because current transformer 2 output does not allow open circuit, and the power of on-line monitoring equipment 5 is generally change, for preventing current transformer 2 from breaking down, the overcurrent protection of the present embodiment and power adjusting circuit 3 comprise the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2 and Transient Voltage Suppressor TVS; Wherein, Transient Voltage Suppressor TVS is connected to the secondary side of current transformer 2, the source electrode of the first metal-oxide-semiconductor Q1 and drain electrode are connected to the two ends of Transient Voltage Suppressor TVS, be connected with the second resistance R2 between the grid of the first metal-oxide-semiconductor Q1 and source electrode, between grid and drain electrode, be connected with the first resistance R1, the source electrode of the second metal-oxide-semiconductor Q2 connects the drain electrode of the first metal-oxide-semiconductor Q1, the source electrode of drain electrode connection first metal-oxide-semiconductor Q1, is connected with the 3rd resistance R3, is connected with the 4th resistance R4 between grid and drain electrode between the grid of the second metal-oxide-semiconductor Q2 and source electrode; The drain electrode of the second metal-oxide-semiconductor Q2 is then connected with on-line monitoring equipment 5 respectively at management of charging and discharging circuit 4.So, Transient Voltage Suppressor TVS can be utilized to carry out the unnecessary energy of Absorption Current instrument transformer 2 secondary side, voltage is suppressed in the scope that system can be born, avoids causing interference to the electric device of the secondary side of current transformer 2 and damaging, to ensure the safe operation of on-line monitoring equipment 5.
In addition, for optimizing the structure of whole current transformer 2, ensure its performance in the entire system, it comprises the inductance core a be socketed on high voltage bus 1, being wound around can coil b and be connected to the regulator rectifier circuit c getting energy coil b with getting on inductance core a.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. an electric power power transmission and transformation system, is characterized in that: it comprises high voltage bus, current transformer, overcurrent protection and power adjusting circuit, management of charging and discharging circuit, on-line monitoring equipment and several storage batterys; Described current transformer obtains energy by the electromagnetic induction of high voltage bus overcoat magnetic conductor; described overcurrent protection and power adjusting circuit be connected to current transformer secondary side and by the Current Control of the secondary side of current transformer in the scope that system can be born; described overcurrent protection and power adjusting circuit are powered directly to on-line monitoring equipment and by management of charging and discharging circuit to storage battery power supply, described storage battery is powered to on-line monitoring equipment.
2. a kind of electric power power transmission and transformation system as claimed in claim 1, it is characterized in that: described overcurrent protection and power adjusting circuit comprise the first metal-oxide-semiconductor, second metal-oxide-semiconductor and Transient Voltage Suppressor, described Transient Voltage Suppressor is connected to the secondary side of current transformer, the source electrode of described first metal-oxide-semiconductor and drain electrode are connected to the two ends of Transient Voltage Suppressor, the second resistance is connected with between the grid of described first metal-oxide-semiconductor and source electrode, the first resistance is connected with between grid and drain electrode, the source electrode of described second metal-oxide-semiconductor connects the drain electrode of the first metal-oxide-semiconductor, the source electrode of drain electrode connection first metal-oxide-semiconductor, the 3rd resistance is connected with between the grid of described second metal-oxide-semiconductor and source electrode, the 4th resistance is connected with between grid and drain electrode,
The drain electrode of described second metal-oxide-semiconductor is respectively at management of charging and discharging circuit and on-line monitoring equipment connection.
3. a kind of electric power power transmission and transformation system as claimed in claim 2, is characterized in that: described current transformer comprises the inductance core be socketed on high voltage bus, is wound around and getting energy coil and being connected to the regulator rectifier circuit getting energy coil on inductance core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420707968.3U CN204190504U (en) | 2014-11-22 | 2014-11-22 | A kind of electric power power transmission and transformation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420707968.3U CN204190504U (en) | 2014-11-22 | 2014-11-22 | A kind of electric power power transmission and transformation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190504U true CN204190504U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420707968.3U Active CN204190504U (en) | 2014-11-22 | 2014-11-22 | A kind of electric power power transmission and transformation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186219A (en) * | 2016-08-25 | 2016-12-07 | 魔水科技（北京）有限公司 | Nuclear-magnetism sterilizing unit and method for sanitaryware |
-
2014
- 2014-11-22 CN CN201420707968.3U patent/CN204190504U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186219A (en) * | 2016-08-25 | 2016-12-07 | 魔水科技（北京）有限公司 | Nuclear-magnetism sterilizing unit and method for sanitaryware |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20150727 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Lin Inventor after: Tang Shugong Inventor after: Jin Xiangyu Inventor after: Wang Yuehang Inventor before: Jiang Lin Inventor before: Tang Shugong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: JIANG LIN TANG SHUGONG TO: JIANG LIN TANG SHUGONG JIN XIANGYU WANG YUEHENG |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150727 Address after: 133000 No. 332 Guangming Street, Yanbian Korean Autonomous Prefecture, Jilin, Yanji Province Patentee after: State Grid Jilin Electric Power Company Limited Yanbian Power Supply Company Patentee after: State Grid Corporation of China Address before: 133000 No. 332 Guangming Street, Yanbian Korean Autonomous Prefecture, Jilin, Yanji Province Patentee before: State Grid Jilin Electric Power Company Limited Yanbian Power Supply Company |