CN100596331C - High pressure measurement device and antitheft electric method for high-low pressure electric quantity measurement contrast - Google Patents
High pressure measurement device and antitheft electric method for high-low pressure electric quantity measurement contrast Download PDFInfo
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Abstract
The invention discloses a high-voltage metering device and a prevention method of electricity filching which can carry out the metering comparison on the electric quantity at the high-voltage end andthe low-voltage end. The casing end of the device is equipped with an end cover, and a circuit board is positioned in the casing. The circuit board is connected to a power source, a memory, a batterybox, an antenna, a central processor unit CPU and a high-voltage metering intelligent circuit for transmitting and receiving the module. A conduit is connected in the casing, and two ends of the conduit are communicated with outside of two ends of the casing. A transformer is positioned in the casing and the transformer is covered on the external wall of the conduit and corresponds to the internalhole of the conduit. The transformer is connected to the circuit board by wires. The end cover is equipped with a through hole which is communicated to the corresponding internal hole of the conduit.The device can carry out the electric quantity gauge of the high-voltage end of the power transformer, and compare to that of the low-voltage end of the power transformer, so as to provides the scientific basis of verification of the real electricity consumption of users, fundamentally prevents from the electricity filching and avoids the economic loss of the power supply department.
Description
Technical field
The present invention relates to power equipment and power supply technique field, specifically a kind of high pressure measurement device and can measure the electricity anti-theft method of contrast to high-pressure side, low pressure end electric weight.
Background technology
At present, power supply department all is to make an issue of on the electric energy meter between power transformer low pressure end and the customer charge generally for the electric energy that avoids theft, and promptly controls the difficult mode of being opened by the user of connection box of electric energy meter lid.But, the means of illegal stealing are diversified, such as: take short circuit or open-circuit current mutual inductor, and will load and directly carry out stealing with forms such as the power transformer low pressure end are connected, before power supply department is verified power consumption again with its reinstatement, to get by under false pretences.To this, power supply department knows that obviously this power consumption is untrue, but evidence that also cannot take out science is admitted what one has said or done the stealing people.The economic loss that the poly-talented electricity filching behavior of this what is called brings for power supply department is not only quite hugely, and is endless.Moreover when high-tension line broke down the switch breaking in the middle of operation, the traditional detection technology was difficult to promptly and accurately be judged as short trouble or earth fault, and it brings inconvenience for detection and maintenance work.How can scientific and effective contain various electricity filching means, fundamentally to retrieve the economic loss of power supply department, be that present power supply industry has a great problem to be solved.
Summary of the invention
The purpose of this invention is to provide a kind of high pressure measurement device and can measure the electricity anti-theft method of contrast high-pressure side, low pressure end electric weight, it takes to install the high pressure measurement device form additional at the high-pressure side of power transformer, and compare by metering respectively high and low pressure side electric energy, it can solve the stealing evidence that science can't be provided that prior art exists, and can't fundamentally prevent the problem of stealing.
The objective of the invention is to be achieved through the following technical solutions: the high pressure measurement device, it comprises the housing of high pressure measurement device GHG, on the housing port end cap is installed, mounting circuit boards in the housing connects the high pressure measurement smart circuit that comprises power supply device, storer, battery case, antenna, central processor CPU and transmitting and receiving module on the circuit board; Connect penetration pipe in the housing, the mouth of pipe at penetration pipe two ends communicates with the outside at housing two ends; Mutual inductor is installed in the housing, and mutual inductor is sleeved on the outer wall of penetration pipe, and corresponding with the penetration pipe endoporus; Mutual inductor is connected with circuit board by lead; End cap is provided with the corresponding through hole that communicates with the penetration pipe endoporus.
Describedly can measure the electricity anti-theft method of contrast to high-pressure side, low pressure end electric weight, high pressure measurement device GHG is installed on the high pressure inlet wire of power transformer BY high-pressure side, high pressure measurement device GHG is corresponding mutually with negative control middle-end FZ and negative control center FX respectively, and negative control middle-end FZ is corresponding mutually with negative control center FX; Be connected with coulometric analysis instrument DFX with negative control middle-end FZ respectively by lead on the electric energy meter DN that power transformer BY low pressure end is installed, coulometric analysis instrument DFX is corresponding mutually with high pressure measurement device GHG;
A: high pressure measurement device GHG sends to negative control middle-end FZ from the information about power a1 of the high-pressure side up-sampling high pressure of power transformer BY by wireless mode, negative control middle-end FZ can read the information about power a2 at electric energy meter DN low pressure place simultaneously automatically, negative control middle-end FZ regularly uploads these two kinds of information about power a1, a2 that obtain respectively by wireless network simultaneously to negative control center FX, whether negative control center FX compares computing according to two kinds of information about power a1, a2 obtaining and conforms to, and can draw the record that whether has the stealing situation; When finding have the stealing situation then to send the stealing alerting signal, the operator on duty gets final product the coulometric analysis instrument DFX of portable hand-held telephone set form to the stealing scene, read the information about power a1 of high pressure measurement device GHG place metering by wireless mode, read the information about power a2 of electric energy meter DN place metering again by 485 line modes, both relatively can learn specifically stealing situation accurately;
B: high pressure measurement device GHG can detect the security situation of high-tension line operation at any time, when high-tension line is short-circuited the breakdown switch breaking, then vanishing of electric current in the circuit, at this moment, high pressure measurement device GHG is the integrated package U6 as the GPRS module by being provided with in it then, with detecting the short trouble warning message b1 that this electric current changes, utilize GPRS network directly to upload to negative control center FX, negative control center FX can be judged as circuit short trouble has taken place; When high-tension line generation earth fault, electric current in the circuit can increase suddenly, oscillatory type decay then, and restore balance, at this moment, high pressure measurement device GHG will detect the earth fault warning message b2 of this electric current variation by the integrated package U6 as the GPRS module, directly upload to negative control center FX by GPRS network, and negative control center FX can be judged as circuit earth fault has taken place.
For further realizing purpose of the present invention, also can be achieved through the following technical solutions: the housing shaped upper part is that circular arc convex, lower shape are rectangle.Described mutual inductor comprises current transformer CT and power mutual inductor PT; Described high pressure measurement smart circuit comprises central processor CPU, power circuit, current sampling circuit, clock circuit, memory circuit and emission and receiving circuit, and central processor CPU joins with power circuit, current sampling circuit, clock circuit, memory circuit and emission and receiving circuit respectively; Power circuit and power mutual inductor PT join, and current sampling circuit and current transformer CT join.In the high pressure measurement smart circuit, central processor CPU comprises integrated package U1, crystal oscillator CY1 in parallel between integrated package U1 pin 8, the pin 9, integrated package U1 pin 10 series capacitance C5 ground connection GND;
Two DC terminal of rectifier Z1 are joined with integrated package U4 pin 1, pin 3 respectively in the power circuit, shunt capacitance C6 between integrated package U4 pin 1, the pin 3, integrated package U4 pin 3 ground connection GND; Parallel diode D1 between integrated package U4 pin 1, the pin 2, parallel diode D2 between integrated package U4 pin 2, the pin 5, integrated package U4 pin 2 series inductance L1, resistance R 6 connect U4 pin 4, integrated package U4 pin 5 ground connection GND, L1, R6 node series connection capacitor C 7 ground connection GND, simultaneously, L1, R6 node series diode D3 connect the short circuit point of integrated package U1 pin 1, pin 64; Accumulator E plus earth GND, negative pole series diode D4 connect the short circuit point of integrated package U1 pin 1, pin 64; Two of rectifier Z1 exchanges end and joins with the secondary terminals of power mutual inductor PT respectively;
Integrated package U1 pin 2, pin 3 resistance R 2, the R1 in the series current sample circuit respectively connect the secondary terminals of current transformer CT, resistance R 3 is in parallel with the secondary terminals of current transformer CT, connect integrated package U1 pin 2 behind the integrated package U1 pin 3 series capacitance C1-2, C1, C2 node ground connection GND;
Integrated package U1 pin 45, pin 44 respectively with clock circuit in integrated package U2 pin 2, pin 13 join, integrated package U2 pin 7 ground connection GND, pin 5 meet power supply VCC;
Integrated package U1 pin 45, pin 44 connect integrated package U3 pin 5, the pin 6 in the memory circuit respectively, and integrated package U3 pin 5, pin 6 join with integrated package U2 pin 2, pin 13 respectively, ground connection GND behind integrated package U3 pin 1-3, pin 7 short circuits;
Integrated package U1 pin 59-60, respectively with emission/receiving circuit in integrated package U5 pin 2-3 join, integrated package U5 pin 2-3 joins with integrated package U6 pin 15, pin 17 respectively.
The beneficial effect that the present invention can produce: because of the high pressure measurement device being installed on the high pressure inlet wire of power transformer high-pressure side, the high pressure measurement device is corresponding mutually with negative control middle-end and negative control center respectively, and negative control middle-end is corresponding mutually with negative control center; On the electric energy meter that the power transformer low pressure end is installed, be connected with the coulometric analysis instrument with negative control middle-end respectively by lead, the coulometric analysis instrument is corresponding mutually with the high pressure measurement device, so it can reflect the electric flux of electricity consumption from high-pressure side, and this electric flux signal wireless is transmitted to negative control middle-end, negative control middle-end wireless transmit again gives negative control center for its grasp; Because of on the electric energy meter of power transformer low pressure end, connecting and the mutual corresponding coulometric analysis instrument of high pressure measurement device by lead, so the coulometric analysis instrument can either detect the power consumption of low pressure end load by electric energy meter, can also detect the electric flux of high-pressure side electricity consumption by the high pressure measurement device, and the power consumption of high-pressure side and low pressure end can be compared, to examine out real power consumption; Because of in high pressure measurement device GHG, the GPRS module being set, so it can utilize GPRS network, the detected high-tension line failure message that takes place in service is directly uploaded to negative control center FX, for accurate failure judgement reason provides scientific information.The present invention can carry out electric quantity metering to the high-pressure side of power transformer, and can compare with the low pressure end electric quantity metering of power transformer, it not only can provide scientific basis for examining with the true power consumption of electric unit, fundamentally prevent stealing, avoided the economic loss of power supply department, and can provide scientific information for accurately judging the reason that high-tension line breaks down, widespread use can produce tangible society, economic benefit.
Description of drawings
Fig. 1 is an information about power testing process synoptic diagram of the present invention;
Fig. 2 is the schematic block circuit diagram of high pressure measurement device GHG of the present invention;
Fig. 3 is the circuit theory diagrams of high pressure measurement device GHG of the present invention;
Fig. 4 is the perspective view of high pressure measurement device GHG of the present invention;
Fig. 5 is for the housing 1 of high pressure measurement device GHG of the present invention removes end cap 3, removes the current transformer CT that is sleeved on penetration pipe 2 outer walls and the perspective view behind the power mutual inductor PT, mainly illustrates penetration pipe 2 and the installation site of circuit board 4 in housing 1;
Fig. 6 is the perspective view of circuit board 4, connects the version of power supply device 41, storer 42, battery case 43, antenna 44, central processor CPU, transmitting and receiving module 46 on the main illustrative circuitry plate 4 respectively.
Embodiment
High pressure measurement device of the present invention, it comprises the housing 1 of high pressure measurement device GHG, end cap 3 is installed on housing 1 port, mounting circuit boards 4 in the housing 1 connects the high pressure measurement smart circuit that comprises power supply device 41, storer 42, battery case 43, antenna 44, central processor CPU and transmitting and receiving module 46 on the circuit board 4; Connect penetration pipe 2 in the housing 1, the mouth of pipe at penetration pipe 2 two ends communicates with the outside at housing 1 two ends; Mutual inductor is installed in the housing 1, and mutual inductor is sleeved on the outer wall of penetration pipe 2, and corresponding with penetration pipe 2 endoporus; Mutual inductor is connected with circuit board 4 by lead; End cap 3 is provided with and the corresponding through hole that communicates of penetration pipe 2 endoporus.Housing 1 shaped upper part is that circular arc convex, lower shape are rectangle.Described mutual inductor comprises current transformer CT and power mutual inductor PT; Described high pressure measurement smart circuit comprises central processor CPU, power circuit, current sampling circuit, clock circuit, memory circuit and emission and receiving circuit, and central processor CPU joins with power circuit, current sampling circuit, clock circuit, memory circuit and emission and receiving circuit respectively; Power circuit and power mutual inductor PT join, and current sampling circuit and current transformer CT join.
In the high pressure measurement smart circuit, central processor CPU comprises integrated package U1, crystal oscillator CY1 in parallel between integrated package U1 pin 8, the pin 9, integrated package U1 pin 10 series capacitance C5 ground connection GND;
Two DC terminal of rectifier Z1 are joined with integrated package U4 pin 1, pin 3 respectively in the power circuit, shunt capacitance C6 between integrated package U4 pin 1, the pin 3, integrated package U4 pin 3 ground connection GND; Parallel diode D1 between integrated package U4 pin 1, the pin 2, parallel diode D2 between integrated package U4 pin 2, the pin 5, integrated package U4 pin 2 series inductance L1, resistance R 6 connect integrated package U4 pin 4, integrated package U4 pin 5 ground connection GND, L1, R6 node series connection capacitor C 7 ground connection GND, simultaneously, L1, R6 node series diode D3 connect the short circuit point of integrated package U1 pin 1, pin 64; Accumulator E plus earth GND, negative pole series diode D4 connect the short circuit point of integrated package U1 pin 1, pin 64; Two of rectifier Z1 exchanges end and joins with the secondary terminals of power mutual inductor PT respectively;
Integrated package U1 pin 2, pin 3 resistance R 2, the R1 in the series current sample circuit respectively connect the secondary terminals of current transformer CT, resistance R 3 is in parallel with the secondary terminals of current transformer CT, connect integrated package U1 pin 2 behind the integrated package U1 pin 3 series capacitance C1-2, C1, C2 node ground connection GND;
Integrated package U1 pin 45, pin 44 respectively with clock circuit in integrated package U2 pin 2, pin 13 join, integrated package U2 pin 7 ground connection GND, pin 5 meet power supply VCC;
Integrated package U1 pin 45, pin 44 connect integrated package U3 pin 5, the pin 6 in the memory circuit respectively, and integrated package U3 pin 5, pin 6 join with integrated package U2 pin 2, pin 13 respectively, ground connection GND behind integrated package U3 pin 1-3, pin 7 short circuits;
Integrated package U1 pin 59-60, respectively with emission/receiving circuit in integrated package U5 pin 2-3 join, integrated package U5 pin 2-3 joins with integrated package U6 pin 15, pin 17 respectively.
Can measure the electricity anti-theft method of contrast to high-pressure side, low pressure end electric weight, high pressure measurement device GHG is installed on the high pressure inlet wire of power transformer BY high-pressure side, high pressure measurement device GHG is corresponding mutually with negative control middle-end FZ and negative control center FX respectively, and negative control middle-end FZ is corresponding mutually with negative control center FX; Be connected with coulometric analysis instrument DFX with negative control middle-end FZ respectively by lead on the electric energy meter DN that power transformer BY low pressure end is installed, coulometric analysis instrument DFX is corresponding mutually with high pressure measurement device GHG;
A: high pressure measurement device GHG sends to negative control middle-end FZ from the information about power a1 of the high-pressure side up-sampling high pressure of power transformer BY by wireless mode, negative control middle-end FZ can read the information about power a2 at electric energy meter DN low pressure place simultaneously automatically, negative control middle-end FZ regularly uploads these two kinds of information about power a1, a2 that obtain respectively by wireless network simultaneously to negative control center FX, whether negative control center FX compares computing according to two kinds of information about power a1, a2 obtaining and conforms to, and can draw the record that whether has the stealing situation; When finding have the stealing situation then to send the stealing alerting signal, the operator on duty gets final product the coulometric analysis instrument DFX of portable hand-held telephone set form to the stealing scene, read the information about power a1 of high pressure measurement device GHG place metering by wireless mode, read the information about power a2 of electric energy meter DN place metering again by 485 line modes, both relatively can learn specifically stealing situation accurately;
B: high pressure measurement device GHG can detect the security situation of high-tension line operation at any time, when high-tension line is short-circuited the breakdown switch breaking, then vanishing of electric current in the circuit, at this moment, high pressure measurement device GHG is the integrated package U6 as the GPRS module by being provided with in it then, with detecting the short trouble warning message b1 that this electric current changes, utilize GPRS network directly to upload to negative control center FX, negative control center FX can be judged as circuit short trouble has taken place; When high-tension line generation earth fault, electric current in the circuit can increase suddenly, oscillatory type decay then, and restore balance, at this moment, high pressure measurement device GHG will detect the earth fault warning message b2 of this electric current variation by the integrated package U6 as the GPRS module, directly upload to negative control center FX by GPRS network, and negative control center FX can be judged as circuit earth fault has taken place.
When high pressure measurement device GHG of the present invention makes, various parts, device are assembled, and respectively current transformer CT and power mutual inductor PT be sleeved on penetration pipe 2 outer walls by above-mentioned requirements.
The present invention installs and uses mode: existing low-temperature measurement device is made up of low-voltage current mutual inductor HG and electric energy meter DN, the low-temperature measurement device is installed on the power transformer BY low pressure end low voltage transmission line, electric energy meter DN is connected with negative control middle-end FZ by lead, and negative control middle-end FZ is corresponding with negative control center FX.High pressure measurement device GHG is installed on power transformer BY high-pressure side high pressure inlet wire, and the high pressure inlet wire is penetrated penetration pipe 2 endoporus of high pressure measurement device GHG housing 1.High pressure measurement device GHG comprises current transformer CT and power mutual inductor PT, and high pressure measurement device GHG is corresponding mutually with negative control middle-end FZ and negative control center FX respectively; Electric energy meter DN is connected with coulometric analysis instrument DFX by lead, and coulometric analysis instrument DFX is corresponding with high pressure measurement device GHG.
The course of work of the present invention is described: during work, and the closed first high-voltage switch gear KG1 and the second high-voltage switch gear KG2 power transformer BY operation of then working earlier.
One, high pressure measurement device GHG sends to negative control middle-end FZ from the information about power a1 of the high-pressure side up-sampling high pressure of power transformer BY by wireless mode, negative control middle-end FZ can read the information about power a2 at electric energy meter DN low pressure place simultaneously automatically, negative control middle-end FZ regularly uploads these two kinds of information about power a1, a2 that obtain respectively by wireless network simultaneously to negative control center FX, whether negative control center FX compares computing according to two kinds of information about power a1, a2 obtaining and conforms to, and can draw the record that whether has the stealing situation; When finding have the stealing situation then to send the stealing alerting signal, the operator on duty gets final product the coulometric analysis instrument DFX of portable hand-held telephone set form to the stealing scene, read the information about power a1 of high pressure measurement device GHG place metering by wireless mode, read the information about power a2 of electric energy meter DN place metering again by 485 line modes, both relatively can learn specifically stealing situation accurately.
Two, high pressure measurement device GHG can detect the security situation of high-tension line operation at any time, when high-tension line is short-circuited the breakdown switch breaking, then vanishing of electric current in the circuit, at this moment, high pressure measurement device GHG is the integrated package U6 as the GPRS module by being provided with in it then, with detecting the short trouble warning message b1 that this electric current changes, utilize GPRS network directly to upload to negative control center FX, negative control center FX can be judged as circuit short trouble has taken place; When high-tension line generation earth fault, electric current in the circuit can increase suddenly, oscillatory type decay then, and restore balance, at this moment, high pressure measurement device GHG will detect the earth fault warning message b2 of this electric current variation by the integrated package U6 as the GPRS module, directly upload to negative control center FX by GPRS network, and negative control center FX can be judged as circuit earth fault has taken place
Circuit of the present invention is described:
1, in the current sampling circuit, R3 is a sampling resistor with current transformer CT secondary terminals parallel resistor, and resistance R 1, R2 and capacitor C 1, C2 are filter network.
2, in the clock circuit, integrated package U2 is connected with CPU by the iic bus mode, and resistance R 6, R7 are pull-up resistor; Integrated package U1 model as CPU is: MSP430F427 (including the A/D circuit); Integrated package U2 model is: RX8025.
3, in the memory circuit, integrated package U3 is connected with CPU by the iic bus mode, and with integrated package U2 bus shared; Integrated package U3 model is: AT24C64.
4, launch/accept in the circuit, integrated package U5 is connected with integrated package U1 by serial bus jointly with integrated package U6; Integrated package U5 is the short-distance wireless module, and for mutual communication usefulness between the hi-line ABC three-phase, its model is: LSD-RFCC1100; Integrated package U6 is the GPRS module, and its model is: MC55, it be used for high pressure measurement device GHG directly with the communication of negative control center FX.Because of integrated package U5 and the shared same communication channel of integrated package U6, be the conflict of avoiding both to work, both working powers are adopted alternately control mode, its control circuit is a known technology.
5, power circuit is the working power of coulometric analysis smart circuit of the present invention, and it by power mutual inductor PT and accumulator E power supply, that is: when high-tension line is powered to power transformer BY, is powered by power mutual inductor PT mutual inductance circuit respectively; When the high-tension line interruption is powered to power transformer BY, then power by accumulator E; Integrated package U4 is a Switching Power Supply, and its model is LM2575.
6, the pin of not using of above-mentioned each integrated package must ground connection; The working power pin of above-mentioned each integrated package and grounding pin connects power supply respectively and ground connection is known technology.
The effect of high pressure measurement device GHG of the present invention: 1, will gather galvanometer and calculate behind KW and the KWh and to deposit chip in once in per 10 minutes.2, can outwards transmit store information at any time on request.3, by different transformer coiling electric current number of wire turns and a plurality of taps are arranged to change no-load voltage ratio.4, the high amount of holding battery is housed, the life-span is at least more than half a year.5, inner core and main traverse line should insulate.6, program and router are calculated in interior design.7, appearance weathering resistance, day temperature, rainwater, strong wind etc. attack naturally.It is convenient when 8, the replacing battery changes transformer ratio.9, the information storage amount is at least more than 300,000,000.10, the high-altitude is landed and is not generally damaged.11, wireless signal 100 meters with interior effectively.
The effect of coulometric analysis instrument DFX of the present invention: 1, can send the data that instruction acquisition high pressure measurement device GHG stores as requested at any time.2, can gather the output power of electric energy meter DN as required.3, can be with above-mentioned information calculations, contrast.4, can calculate power and electric weight by input voltage as requested.5, can calculate the long electric weight difference and the electricity charge amount of money as requested.6, profile is small and exquisite, hand-held convenient, multiple functional, as the handset telephone shape.
The effect of negative control middle-end FZ of the present invention: 1, can from high pressure measurement device GHG, gather power at any time automatically and be transferred to negative control center FX.2, electric weight, the power that can on request electric energy meter DN be gathered regularly flows to negative control center FX automatically.3, can store more than 1 year the electric weight of gathering from high pressure measurement device GHG and electric energy meter DN.4, negative control middle-end FZ obliterated data not when losing power supply.
The effect of negative control center FX of the present invention: 1, bear control center FX main frame except that original function, electric energy information about power and the high-tension line fault alarm information of also wanting energy automatic reception high pressure measurement device GHG to transmit at any time, and can compare by electric weight automatic and that electric energy meter DN transmits
As the alert notice relevant personnel site disposal in time that notes abnormalities.2, above data can deposit main frame in, can go out data by computer printing and report relevant leader.
Coulometric analysis instrument DFX of the present invention adopts the check meter universal palm PC TP800 of usefulness of power industry, and to typing software program in addition wherein, makes it to have the function of coulometric analysis; During measurement, coulometric analysis instrument DFX reads the information about power of electric energy meter DN place metering by 485 line modes, read the information about power of high pressure measurement device GHG place metering again by wireless mode, computing in coulometric analysis instrument DFX then can obtain on-the-spot stealing information record.The casing profile of coulometric analysis instrument DFX is the mobile phone shape, is respectively equipped with display, button and socket on it, is respectively equipped with circuit board and antenna in the casing, and the coulometric analysis smart circuit is set on the circuit board.When the socket on the coulometric analysis instrument DFX is to use clamp on amperemeter to measure, as the interface that is connected with clamp on amperemeter.
The technical requirement of high pressure measurement device GHG: 1, current range: 10A-400A.2,1.0 grades of current measurement precision.3, memory capacity 256K.4, battery capacity 250MA/h.5, battery life is more than 1.5 years.6, emissive power 10mw.7, communication distance 100m.8, communication baud rate 2400bps.9, antistatic degree of disturbance 15000V.10, anti-burst of pulses interference voltage 4000V.11, the clock accuracy is 0.5 second/day.12 seal degree IP54.13, ambient operating temperature-25 is ℃-60 ℃.
The current signal of per 10 minutes once sampling current transformer CT of the function declaration of high pressure measurement device GHG: A, high pressure measurement device GHG through mould/number (A/D) conversion, is measured actual electric current and is with the markers storage.B, each high pressure measurement device GHG have unique ID number.The instruction that C, high pressure measurement device GHG send by wireless signal according to the coulometric analysis instrument: 1, passback promptly is an electric current.2, the historical electric current record of passback.3, passback is ID number.4, average cumulative electric energy reference value, 5, receive coulometric analysis instrument DFX order and be provided with and revise ID number, date, time.
The technological difficulties of high pressure measurement device GHG: 1, low-power consumption because be powered battery, must guarantee that continuous working 1 year is more than half.2, highly reliable, this device will be as the foundation of differentiating whether stealing, and the working site does not allow to change at any time the high pressure measurement device GHG of inefficacy.3, high anti-interference, this device is installed on the hi-line, must have the ability of anti-high electromagnetic interference (EMI).4, anti-adverse environment, the working environment of high pressure measurement device GHG is in the open, must adapt to wide temperature, humidity environment, anti-Exposure to Sunlight, anti-rain, good airproof performance, anti-vibration, anti-drop ability is strong.
Negative control middle-end type is respectively: K4GA42-532 and K3GA42-532.Negative control center: i.e. main station system: 1, master station application dbase: electricity consumption field management and service system.2, type of database: ORACLE.3, main website version: GRV3.52.4, type of server: DELL2850 front end processor server; DELL750 is the WEB server; The HP380 database server.Transmission mode is the GPRS transmission.
The present invention is in the normal electricity consumption process analysis procedure analysis at a certain user, and user's power load power is more stable usually, and promptly a power adds the loss on lines and tranformers that secondary calculating point is above, is to equal secondary power basically; If first and second power difference then must ascertain the reason greater than being abnormal more than 20%.And present conventional electric power power-supply unit technology is to be difficult to poor with first and second power of finding consumer and electric weight.
1, at the primary side of user power utilization high pressure measurement device GHG is installed, this device is being stored user's electric power, electric weight and current value any time, these data can be as requested, give user's negative control middle-end FZ by the wireless device short-range transmission, and be transferred to by the radio transmission system of negative control middle-end FZ and the negative control center FX of power supply department and bear control center FX and analyze contrast.Then give the alarm if find the electricity consumption abnormal conditions, negative control staff enters site disposal according to the alert notification supervision of power consumption personnel of transmitting.The supervision of power consumption personnel find out the on-the-spot correlation data of the coulometric analysis instrument DFX that carries the stealing situation and handle.
2, coulometric analysis instrument DFX is the analytical equipment that the supervision of power consumption personnel carry, this device storage local all users' the consumer archives and the electricity consumption password at this family, as long as to 100 meters of user power utilization equipment with the interior user cipher of pressing, can from this user's high pressure measurement device GHG, collect moment electric power and the electric weight of any period and electric current, same temporal power, electric weight and the electric current that records with secondary compares again, and calculates difference.If any electricity filching behavior, coulometric analysis instrument DFX can also find the stealing time from first and second side, calculates to carry out the electricity charge behind total power-steeling quantity and calculate.
3, all industrial users and lighting consumer are equipped with the negative middle-end FZ of controlling at present, and negative control middle-end FZ carries out wireless self-timing transmission to the power load electric weight at this family to the negative control center FX of power supply department, and energy both sides conversation; Negative control center FX controls power load as requested, and monitoring power consumption or directly cut off the electricity supply and stop power supply has now become the negative control of of power supply department system.Anti-electricity-theft device of the present invention is wireless this system that incorporates into.
4, coulometric analysis instrument DFX also can with the supervision of power consumption personnel to any low-voltage customer and little lighting consumer carry out power, whether the electric quantity acquisition analysis exists the stealing situation.
Technical scheme of the present invention is not limited only to the embodiment of present embodiment record, can also have other embodiment to finish technical scheme of the present invention.
The technology that the present invention does not describe in detail partly is known technology.
Claims (5)
1, a kind of high pressure measurement device (GHG), it is installed on the high pressure inlet wire of power transformer BY high-pressure side, high pressure measurement device (GHG) specifically is installed between the first high-voltage switch gear KG1 and the second high-voltage switch gear KG2, behind the closed first high-voltage switch gear KG1 and the second high-voltage switch gear KG2, the power transformer BY work that just brings into operation; On housing (1) port of this high pressure measurement device (GHG) end cap (3) is installed, it is characterized in that: the interior mounting circuit boards of housing (1) (4), circuit board (4) go up and connect the high pressure measurement circuit that comprises power supply device (41), storer (42), battery case (43), antenna (44), central processing unit (CPU) and transmitting and receiving module (46); Connect penetration pipe (2) in the housing (1), the mouth of pipe at penetration pipe (2) two ends communicates with the outside at housing (1) two ends; Housing (1) is installed mutual inductor, and mutual inductor is installed on the outer wall of penetration pipe (2), and corresponding with penetration pipe (2) endoporus; Mutual inductor is connected with circuit board (4) by lead; End cap (3) is provided with and the corresponding through hole that communicates of penetration pipe (2) endoporus.
2, high pressure measurement device according to claim 1 (GHG) is characterized in that: housing (1) shaped upper part is that circular arc convex, lower shape are rectangle.
3, high pressure measurement device according to claim 1 (GHG) is characterized in that: described mutual inductor comprises current transformer (CT) and power mutual inductor (PT); Described high pressure measurement circuit comprises central processing unit (CPU), power circuit, current sampling circuit, clock circuit, memory circuit and emission and receiving circuit, and central processing unit (CPU) joins with power circuit, current sampling circuit, clock circuit, memory circuit and emission and receiving circuit respectively; Power circuit and power mutual inductor (PT) join, and current sampling circuit and current transformer (CT) join.
4, high pressure measurement device according to claim 3 (GHG), it is characterized in that: in the high pressure measurement circuit, central processing unit (CPU) comprises integrated package U1, crystal oscillator CY1 in parallel between integrated package U1 pin 8, the pin 9, and integrated package U1 pin 10 series capacitance C5 are connected to GND;
Two DC terminal of rectifier in the power circuit (Z1) respectively with power circuit in integrated package U4 pin 1, pin 3 join, collection shunt capacitance C6 between piece U4 pin 1, pin 3, integrated package U4 pin 3 connects GND; Diode D1 in parallel between integrated package U4 pin 1, the pin 2, diode D2 in parallel between integrated package U4 pin 2, the pin 5, collection connects integrated package U4 pin 4 in piece U4 pin 2 series inductance L1, resistance R 6, integrated package U4 pin 5 connects GND, L1, R6 node series connection capacitor C 7 connect GND, simultaneously, L1, R6 node strings connection diode D3 connect the short circuit point of integrated package U1 pin 1, pin 64; The anodal connection of accumulator E GND, negative pole series connection diode D4 connect the short circuit point of integrated package U1 pin 1, pin 64; Two of rectifier (Z1) exchanges end and joins with the secondary terminals of power mutual inductor (PT) respectively;
Integrated package U1 pin 2, pin 3 resistance R 2, the R1 in the series current sample circuit respectively connect the secondary terminals of current transformer (CT), resistance R 3 is in parallel with the secondary terminals of current transformer (CT), connect integrated package U1 pin 2 behind integrated package U1 pin 3 series capacitance C1, the C2, capacitor C 1, C2 node connect GND;
Integrated package U1 pin 45, pin 44 respectively with clock circuit in integrated package U2 pin 2, pin 13 join, integrated package U2 pin 7 connects GND, pin 5 meets power supply VCC;
Integrated package U1 pin 45, pin 44 connect integrated package U3 pin 5, the pin 6 in the memory circuit respectively, and integrated package U3 pin 5, pin 6 join with integrated package U2 pin 2, pin 13 respectively, connect GND behind integrated package U3 pin 1-3, pin 7 short circuits;
Integrated package U1 pin 59, pin 60, respectively with emission/receiving circuit in integrated package U5 pin 2, pin 3 join, integrated package U5 pin 2, pin 3 respectively with emission/receiving circuit in integrated package U6 pin 15, pin 17 join, more than all devices all in high pressure measurement device (GHG) housing (1), carry out work.
5, any one high pressure measurement device (GHG) measures the electricity anti-theft method of contrast to high-pressure side, low pressure end electric weight among the claim 1-4 by utilizing, it is characterized in that: high pressure measurement device (GHG) is installed on the high pressure inlet wire of power transformer (BY) high-pressure side, high pressure measurement device (GHG) is corresponding mutually with negative control center (FX), and negative control center (FX) is corresponding mutually with negative control middle-end (FZ); The electric energy meter of installing at power transformer (BY) low pressure end (DN) upward is connected with coulometric analysis instrument (DFX) with negative control middle-end (FZ) respectively by lead, and coulometric analysis instrument (DFX) is corresponding mutually with high pressure measurement device (GHG);
A: the electricity consumption electric current a1 of the user transformers (BY) that high pressure measurement device (GHG) is gathered from the power high voltage line sends to negative control middle-end (FZ) by wireless system, negative control middle-end (FZ) can read the information about power a2 at electric energy meter (DN) low pressure place simultaneously automatically, negative control middle-end (FZ) is regularly uploaded these two kinds of information about power a1, a2 that obtain respectively by wireless network simultaneously to negative control center (FX), whether negative control center (FX) compares computing according to two kinds of information about power a1, a2 obtaining and conforms to, and can draw the record that whether has the stealing situation; When finding have the stealing situation then to send the stealing alerting signal, the operator on duty gets final product the coulometric analysis instrument (DFX) of portable hand-held telephone set form to the stealing scene, read the information about power a1 that high pressure measurement device (GHG) is located to measure by wireless mode, read the information about power a2 that electric energy meter (DN) is located to measure by 485 line modes again, both relatively can learn specifically stealing situation accurately;
B: high pressure measurement device (GHG) can detect the security situation of high-tension line operation at any time, when high-tension line is short-circuited the breakdown switch breaking, then vanishing of electric current in the circuit, at this moment, high pressure measurement device (GHG) is the integrated package U6 as the GPRS module by being provided with in it then, with detecting the short trouble warning message b1 that this electric current changes, utilize GPRS network directly to upload to negative control center (FX), negative control center (FX) can be judged as circuit short trouble has taken place; When high-tension line generation earth fault, electric current in the circuit can increase suddenly, oscillatory type decay then, and restore balance, at this moment, high pressure measurement device (GHG) will detect the earth fault warning message b2 of this electric current variation by the integrated package U6 as the GPRS module, directly upload to negative control center (FX) by GPRS network, and negative control center (FX) can be judged as circuit earth fault has taken place.
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| CN200710168118A CN100596331C (en) | 2007-01-26 | 2007-11-06 | High pressure measurement device and antitheft electric method for high-low pressure electric quantity measurement contrast |
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| CN200710168118A CN100596331C (en) | 2007-01-26 | 2007-11-06 | High pressure measurement device and antitheft electric method for high-low pressure electric quantity measurement contrast |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI508016B (en) * | 2014-02-27 | 2015-11-11 | Univ Nat Sun Yat Sen | Method for electricity theft identification |
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| GB201007892D0 (en) * | 2010-05-12 | 2010-06-23 | Gigle Networks Ltd | Voltage measurement |
| CN102023246A (en) * | 2010-12-13 | 2011-04-20 | 中国电力科学研究院 | Method for integrating intelligent anti-theft electric system with electro-information acquisition system |
| WO2013118282A1 (en) * | 2012-02-09 | 2013-08-15 | 三菱電機株式会社 | Electricity meter, method for detecting theft of electricity meter, and power supply system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI508016B (en) * | 2014-02-27 | 2015-11-11 | Univ Nat Sun Yat Sen | Method for electricity theft identification |
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