CN204515015U - Conservation of power electricity measuring and calculating device before and after a kind of transformer transformation - Google Patents
Conservation of power electricity measuring and calculating device before and after a kind of transformer transformation Download PDFInfo
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- CN204515015U CN204515015U CN201520140729.9U CN201520140729U CN204515015U CN 204515015 U CN204515015 U CN 204515015U CN 201520140729 U CN201520140729 U CN 201520140729U CN 204515015 U CN204515015 U CN 204515015U
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Abstract
The utility model discloses conservation of power electricity measuring and calculating device before and after the transformation of a kind of transformer, belong to transformer renovation technique field.It comprises Analysis of energy metering unit, data acquisition unit, first communication module and second communication module, and Analysis of energy metering unit comprises current transformer, voltage transformer (VT) and electric energy meter; Electric energy meter calculates energy data according to the current data received and voltage data according to P=U × I × cos Φ; First communication module is arranged on electric energy meter side, and second communication module is arranged on data acquisition unit side, and energy data, by the communication between first communication module and second communication module, is sent to data acquisition unit by electric energy meter; Wherein, the phase angle between P-electric power/W, U-voltage/V, I-electric current/A, Φ-U and I.This device is without the need to all installing measuring apparatus in transformer high and low pressure side.Therefore, be convenient to implement in transformer improvement project.
Description
Technical field
The utility model relates to transformer renovation technique field, particularly conservation of power electricity measuring and calculating device and measuring method before and after a kind of transformer transformation.
Background technology
Along with the impact of the factors such as China's rapid economic development and economic restructuring, China's power structure and Supply and demand trend constantly change, and electrical network peak load maintains sustained and rapid growth, and peak-valley difference increases, and the requirement of power supply reliability improves constantly.2011, National Development and Reform Committee has printed and distributed " power grid enterprises implement demand Side Management target responsibility check scheme (trying) ", power grid enterprises' demand Side Management target responsibility evaluation and check-up system are established and improve in requirement, guarantee the index realizing conservation of power electricity 0.3%.Energy Saving Industry due to China is also in the stage at initial stage, lacks unified, effective conservation of power quantity measuring method at present.In power grid enterprises' Energy-saving Projects transformation, the transformation of high damage transformer account for significant proportion, therefore needs design science rational transformer transformation conservation of power electricity measuring method badly.
In order to solve the problem, application publication number is that the Chinese invention patent application of CN103018584A discloses a kind of measurement for electric power boosting and transformation conservation of power and electricity and verification method.Its conservation of power by the parameter computational item before and after the boosting and transformation of measure the item border and electricity, for energy saving profit provides reliable basis.Method comprises step: 1) delimit item boundaries before electric power boosting and transformation; 2) identify project the statistical report phase; 3) the element static parameter of identifying project in border before and after boosting and transformation, utilize testing apparatus gather boosting in item boundaries change original text after dynamic operation parameter; 4) mathematical model of conservation of power and electricity is set up, the conservation of power of computational item and electricity.
But this is used for the measurement of electric power boosting and transformation conservation of power and electricity and verification method needs all install measuring apparatus in transformer high and low pressure side.And in the transformer improvement project of reality, transformer only can install a set of measuring apparatus in transformer high and low pressure side wherein usually, and, the installation position of measuring apparatus can not be reserved at offside, therefore, if this is used for the measurement of electric power boosting and transformation conservation of power and electricity and verification method is applied in transformer improvement project, also need to carry out larger amendment to transformer itself, otherwise, be difficult to implement in transformer improvement project.
Utility model content
In order to solve the problem, the utility model proposes conservation of power electricity measuring and calculating device and measuring method before and after a kind of transformer transformation can implemented in transformer improvement project.
Before and after the transformer transformation that the utility model provides, conservation of power electricity measuring and calculating device comprises Analysis of energy metering unit, data acquisition unit, first communication module and second communication module, described Analysis of energy metering unit comprises current transformer, voltage transformer (VT) and electric energy meter
The current data recorded for measuring the electric current of the high and low pressure bus flowing through transformer, and is sent to described electric energy meter by described current transformer;
Described voltage transformer (VT) is used for the voltage of measuring transformer height bus or low-voltage bus bar, and the voltage data recorded is sent to described electric energy meter;
Described electric energy meter calculates energy data according to the described current data received and voltage data according to P=U × I × cos Φ;
Described first communication module is arranged on described electric energy meter side, described second communication module is arranged on described data acquisition unit side, described energy data, by the communication between described first communication module and second communication module, is sent to described data acquisition unit by described electric energy meter;
Wherein,
Phase angle between P-electric power/W, U-voltage/V, I-electric current/A, Φ-U and I.
As preferably, described data acquisition unit is provided with data display equipment, and described data display equipment is used for the described energy data of display in real time.
As preferably, before and after described transformer transformation, conservation of power electricity measuring and calculating device also comprises quantitative analysis unit and outlet terminal,
The energy data that described quantitative analysis unit arrives according to described data acquisition unit acquires, calculates conservation of power electricity before and after transformer transformation;
Described outlet terminal is for exporting conservation of power electricity before and after the transformation of described transformer.
As preferably, described data acquisition unit, quantitative analysis unit, outlet terminal are two part arrangement.
As preferably, described data acquisition unit, quantitative analysis unit are integrated form device, described outlet terminal and described integrate data acquisition unit, split between quantitative analysis unit.
As preferably, described quantitative analysis unit, outlet terminal are integrated form device, described data acquisition unit and described integrate quantitative analysis unit, split between outlet terminal.
As preferably, between described quantitative analysis unit and described outlet terminal, carry out data transmission by Bluetooth technology.
As preferably, described quantitative analysis unit and described outlet terminal are respectively equipped with wired or wireless remote interface, and described quantitative analysis unit carries out data transmission by described remote interface.
As preferably, between described first communication module and second communication module, adopt wire communication; Or, between described first communication module and second communication module, adopt radio communication.
As preferably, the communication protocol between described first communication module and second communication module selects DL/645-2007 multifunctional electric energy meter communication protocol.
Before and after the transformer transformation that the utility model provides, conservation of power electricity measuring and calculating device can obtain energy data by electric energy meter, by being arranged on the communication between the first communication module of electric energy meter side and the second communication module being arranged on data acquisition unit side, data acquisition unit can collect energy data, according to this energy data, staff can calculate conservation of power electricity before and after transformer transformation.Without the need to all installing measuring apparatus in transformer high and low pressure side.Therefore, be convenient to implement in transformer improvement project.
Accompanying drawing explanation
The logic diagram of the transformer transformation front and back conservation of power electricity measuring and calculating device that Fig. 1 provides for the utility model embodiment.
Embodiment
In order to understand the utility model in depth, below in conjunction with drawings and the specific embodiments, the utility model is described in detail.
Embodiment one
See accompanying drawing 1, before and after the transformer transformation that the utility model provides, conservation of power electricity measuring and calculating device comprises Analysis of energy metering unit, data acquisition unit, first communication module and second communication module, and Analysis of energy metering unit comprises current transformer, voltage transformer (VT) and electric energy meter.The current data recorded for measuring the electric current of the high and low pressure bus flowing through transformer, and is sent to electric energy meter by current transformer.Voltage transformer (VT) is used for the voltage of measuring transformer high voltage bus or low-voltage bus bar, and the voltage data recorded is sent to electric energy meter.Electric energy meter calculates energy data according to the current data received and voltage data according to P=U × I × cos Φ.First communication module is arranged on electric energy meter side, and second communication module is arranged on data acquisition unit side, and energy data, by the communication between first communication module and second communication module, is sent to data acquisition unit by electric energy meter.Wherein, the phase angle between P-electric power/W, U-voltage/V, I-electric current/A, Φ-U and I.
Before and after the transformer transformation that the utility model provides, conservation of power electricity measuring and calculating device can obtain energy data by electric energy meter, by being arranged on the communication between the first communication module of electric energy meter side and the second communication module being arranged on data acquisition unit side, data acquisition unit can collect energy data, according to this energy data, staff can calculate conservation of power electricity before and after transformer transformation.Without the need to all installing measuring apparatus in transformer high and low pressure side.Therefore, be convenient to implement in transformer improvement project.
Wherein, data acquisition unit is provided with data display equipment, and data display equipment is used for showing energy data in real time.Now, staff according to by the real-time energy data that this data display equipment shows, and chooses applicable energy data value according to actual needs, can calculate conservation of power electricity before and after transformer transformation.
Its shortcoming is, what show due to this data display equipment is real-time energy data, need staff to carry out reading to data display equipment as required, conservation of power electricity before and after transformer transformation could be calculated according to reading result, cause the waste of human resources.
Embodiment two
The transformer provided with the utility model embodiment one transform before and after the conservation of power electricity difference of calculate device be, before and after the transformer transformation that the utility model embodiment two provides, conservation of power electricity is calculated device and is also comprised quantitative analysis unit and outlet terminal.The energy data that quantitative analysis unit arrives according to data acquisition unit acquires, calculates conservation of power electricity before and after transformer transformation.Outlet terminal is used for conservation of power electricity before and after output transformer transformation.Now, because energy data directly transfers to quantitative analysis unit from data acquisition unit, and exported by outlet terminal, without the need to staff, reading is carried out to data acquisition unit, conservation of power electricity before and after transformer transformation can be obtained, therefore, it is possible to save human resources from outlet terminal.
In the present embodiment, data acquisition unit, quantitative analysis unit, outlet terminal are two part arrangement.Adopt the advantage of two part arrangement to be, data acquisition unit, quantitative analysis unit and outlet terminal can be purchased separately, design separately, when one of them device needs to change or keep in repair, are convenient to change or maintenance; Shortcoming is, needs to select three two part arrangement during application simultaneously, installs inconvenience.
Embodiment three
The transformer provided with the utility model embodiment two transform before and after the conservation of power electricity difference of calculating device be, before and after the transformer transformation that the utility model embodiment three provides in conservation of power electricity measuring and calculating device, data acquisition unit, quantitative analysis unit are integrated form device, split between outlet terminal and the data acquisition unit integrated, quantitative analysis unit.Now, data acquisition unit in the device of three splits originally and quantitative analysis unit are integrated, decrease a device, the transformer transformation front and back conservation of power electricity measuring and calculating device provided compared with the utility model embodiment two is installed more convenient, and, due to split between outlet terminal and the data acquisition unit integrated, quantitative analysis unit, reserve space for making the transmission of data between quantitative analysis unit and outlet terminal subsequently through Bluetooth technology or remote interface.
Embodiment four
The transformer provided from the utility model embodiment two and embodiment three transform before and after conservation of power electricity to calculate device all different, before and after the transformer transformation that the utility model embodiment four provides in conservation of power electricity measuring and calculating device, quantitative analysis unit, outlet terminal are integrated form device, split between data acquisition unit and the quantitative analysis unit integrated, outlet terminal.Now, the data acquisition unit in the device of three splits originally and quantitative analysis unit are integrated, decreases a device, the transformer transformation front and back conservation of power electricity measuring and calculating device provided is installed more convenient compared with the utility model embodiment two.
Embodiment five
Before and after the transformer transformation provided in the utility model embodiment three conservation of power electricity measuring and calculating device basis on improve, before and after the transformer transformation that the utility model embodiment five provides in conservation of power electricity measuring and calculating device, between quantitative analysis unit and outlet terminal, carry out data transmission by Bluetooth technology.Thus eliminate the connection line between quantitative analysis unit and outlet terminal, before and after the transformer transformation making the utility model embodiment five provide, the line of conservation of power electricity measuring and calculating device is more simple, easier for installation.
Its shortcoming is, because Bluetooth technology is a kind of short-distance wireless communication technology, before and after the transformer transformation that application the utility model embodiment five provides during conservation of power electricity measuring and calculating device, need staff to arrive scene and read conservation of power electricity calculation of measured data before and after transformer transformation.Sometimes, the physical environment residing for transformer is severe, can threaten to the personal safety of staff.
Embodiment six
Before and after the transformer transformation provided in the utility model embodiment three conservation of power electricity measuring and calculating device basis on improve, before and after the transformer transformation that the utility model embodiment six provides in conservation of power electricity measuring and calculating device, quantitative analysis unit and outlet terminal are respectively equipped with wired or wireless remote interface, and quantitative analysis unit carries out data transmission by remote interface.Now, staff without the need to reading conservation of power electricity calculation of measured data before and after transformer transformation to on-the-spot, and only needs can complete the task of reading conservation of power electricity calculation of measured data before and after transformer transformation in pulpit.
In addition,
Particularly, wire communication is adopted between first communication module and second communication module; Or, between first communication module and second communication module, adopt radio communication.
More specifically, the communication protocol between first communication module and second communication module selects DL/645-2007 multifunctional electric energy meter communication protocol.Physical connection, communication link and the application technology specification between multifunctional electric energy meter and handheld unit or other data terminal equipment is defined in this communication protocol.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. conservation of power electricity measuring and calculating device before and after a transformer transformation, it is characterized in that, comprise Analysis of energy metering unit, data acquisition unit, first communication module and second communication module, described Analysis of energy metering unit comprises current transformer, voltage transformer (VT) and electric energy meter
The current data recorded for measuring the electric current of the high and low pressure bus flowing through transformer, and is sent to described electric energy meter by described current transformer;
Described voltage transformer (VT) is used for the voltage of measuring transformer high voltage bus or low-voltage bus bar, and the voltage data recorded is sent to described electric energy meter;
Described electric energy meter calculates energy data according to the described current data received and voltage data according to P=U × I × cos Φ;
Described first communication module is arranged on described electric energy meter side, described second communication module is arranged on described data acquisition unit side, described energy data, by the communication between described first communication module and second communication module, is sent to described data acquisition unit by described electric energy meter;
Wherein,
Phase angle between P-electric power/W, U-voltage/V, I-electric current/A, Φ-U and I.
2. conservation of power electricity measuring and calculating device before and after transformer transformation according to claim 1, it is characterized in that, described data acquisition unit is provided with data display equipment, and described data display equipment is used for the described energy data of display in real time.
3. conservation of power electricity measuring and calculating device before and after transformer transformation according to claim 1, is characterized in that, also comprise quantitative analysis unit and outlet terminal,
The energy data that described quantitative analysis unit arrives according to described data acquisition unit acquires, calculates conservation of power electricity before and after transformer transformation;
Described outlet terminal is for exporting conservation of power electricity before and after the transformation of described transformer.
4. conservation of power electricity measuring and calculating device before and after transformer transformation according to claim 3, it is characterized in that, described data acquisition unit, quantitative analysis unit, outlet terminal are two part arrangement.
5. conservation of power electricity measuring and calculating device before and after transformer transformation according to claim 3, it is characterized in that, described data acquisition unit, quantitative analysis unit are integrated form device, described outlet terminal and described integrate data acquisition unit, split between quantitative analysis unit.
6. conservation of power electricity measuring and calculating device before and after transformer transformation according to claim 3, it is characterized in that, described quantitative analysis unit, outlet terminal are integrated form device, described data acquisition unit and described integrate quantitative analysis unit, split between outlet terminal.
7. before and after the transformer transformation according to claim 4 or 5, conservation of power electricity measuring and calculating device, is characterized in that, carry out data transmission between described quantitative analysis unit and described outlet terminal by Bluetooth technology.
8. conservation of power electricity measuring and calculating device before and after the transformer transformation according to claim 4 or 5, it is characterized in that, described quantitative analysis unit and described outlet terminal are respectively equipped with wired or wireless remote interface, and described quantitative analysis unit carries out data transmission by described remote interface.
9. before and after the transformer transformation according to claim 1 or 3, conservation of power electricity measuring and calculating device, is characterized in that, adopt wire communication between described first communication module and second communication module; Or, between described first communication module and second communication module, adopt radio communication.
10. conservation of power electricity measuring and calculating device before and after the transformer transformation according to claim 1 or 3, it is characterized in that, the communication protocol between described first communication module and second communication module selects DL/645-2007 multifunctional electric energy meter communication protocol.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105242081A (en) * | 2015-10-28 | 2016-01-13 | 河南开启电力实业有限公司 | Substation electric energy metering remote monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242081A (en) * | 2015-10-28 | 2016-01-13 | 河南开启电力实业有限公司 | Substation electric energy metering remote monitoring system |
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