Three-stage is U-shaped adjustable to charge installation high-voltage meter
Technical field
The present invention relates to a kind of three-stage it is U-shaped it is adjustable charge installation high-voltage meter, belong to high-tension line electric energy meter
Amount field.
Background technique
The metering and measurement of 10kV overhead line both at home and abroad generallys use the traditional mode of massive quantity power supply and measurement: i.e. Current Mutual Inductance at present
Device (CT), voltage transformer (PT), low -voltage Watt -hour meter are mounted in a whole batch meter.Electricity based on this working principle
There are volumes for energy table greatly, weight reaches 50kg or more, it is necessary to and have a power failure installation, and the original route of palpus truncation accesses the high-pressure side of PT, CT,
Low-pressure side accesses low-pressure meter, when additionally mounted, is unable to built on stilts installation, need to be installed on cross-arm, needs to lift by crane, and installation point selection has about
Shu Xing, it is not possible to sight path interval come adjust clipping room away from, install it is very inconvenient.It averagely installs 1 about 4 hours, thus makes
The electric power of waste is undertaken at power supply enterprise, power consumer is forced to stop production and cause economic loss serious.
Summary of the invention
The object of the present invention is to provide a kind of three-stage it is U-shaped it is adjustable charge installation high-voltage meter, have one
Change electronic type CT and the design of electronic type PT structure, structure is U-shaped adjustable, and overall weight is small, is suitble to high voltage overhead installation, solves frame
The binding character of sky installation, realizes the flexible deployment used after installing.
To solve the above problems, the present invention provide a kind of three-stage it is U-shaped it is adjustable charge installation high-voltage meter, including
Fixing end, sampling end, connecting shaft;The sampling end is connect by connecting shaft with fixing end, connecting shaft both ends respectively with sampling end,
Fixing end is connected with two insulation wing nuts, and sampling end, connecting shaft, fixing end form three-stage U-shaped structure, sampling end and solid
Fixed end both ends spacing can be adjusted by adjusting wing nut;The sampling end port is equipped with an open type electronics CT, described solid
Fixed end port is equipped with opening, and sampling end port and fixing end port are respectively equipped with closeable bayonet iron core, and the lower end electronics CT is
Integral control circuit, electronics PT are integrated in inside integral control circuit.
Preferably, the sampling end and fixing end both ends spacing adjustable range are in 630mm~1240mm.
Preferably, it is 50mm that bayonet iron core, which can fix line footpath, at the sampling end port and fixing end port2~240mm2Frame
Ceases to be busy road.
Preferably, device integrally uses the insulating materials of degree of protection IP67 to encapsulate.
Preferably, the upper end electronics CT is equipped with rain-proof eaves, and sampling end and fixing end opening inner side are equipped with intensive puncture needle, and have
Rubber mat protection.
Preferably, GPRS module is embedded in metering device.
Preferably, electronics CT obtains current sampling signal, is believed electric current by the difference electric discharge road inside integral control circuit
Number amplification, amplified signal is converted into the digital signal being proportional to by A/D, using digital phase correcting and high pass
Filtering removes the DC component in signal subsequently into an input terminal of digital multiplier;
Electronics PT obtains voltage sampling signal by way of electric resistance partial pressure, is discharged by the difference inside integral control circuit
Signal is amplified on road, and the digital signal being proportional to is converted into using A/D, into another input terminal of digital multiplier
Multiplying is carried out with the signal of current channel, completes the instantaneous power measurement of measured electric energy;
Multiplier exports instantaneous power and carries out Integral Processing into " number/frequency " conversion by wave digital lowpass filter
Device, is transformed into the frequency pulse signal proportional to measured electric energy mean power, and the frequency pulse signal is divided into high frequency arteries and veins
Signal and low frequency pulse signal are rushed, wherein high-frequency impulse is output to verification and microprocessor interface, and low-frequency pulse pin is hanging;Arteries and veins
It rushes input signal and is input to microcontroller after photoelectric conversion, after microcontroller receives pulse signal, by input arteries and veins
Number is rushed to be added up and realized according to meter constant size to electrical energy measurement;Wirelessly by microcontroller, it obtains
Energy information, and COMPREHENSIVE CALCULATING obtains total electric energy;GPRS/4G communication mode and Intelligent electricity utilization management system are passed through by microcontroller
Wireless network connection is established, realizes the remote meter reading and load monitoring of high-voltage electric energy meter.
Invention the utility model has the advantages that
The present invention is designed using U-shaped structure, and " distribution intelligent terminal " is minimized, and overall weight is less than 12kg, integration
Electronic type CT and the design of electronic type PT structure, do not need cross-arm installation, do not need to lift by crane, without any wiring, open C T automatic clamping
Firmly overhead line, Direct perforantes take electricity, it can be achieved that electrification installation.Having broken conventional high-tension metering device need to have a power failure the drawbacks of installing,
By installing originally 1 about 4 hour, saves to only needing 0.5 hour, manpower and material resources are greatly saved, improve efficiency.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the horizontal positioned structure chart of the present invention;
In figure: 1, open type electronics CT;2, rain-proof eaves;3, intensive puncture needle;4, wing nut;5 fixing ends;6, it samples
End;7, bayonet iron core;8, high pressure special isolation casing;9, it punctures and shakes hole;10, connecting shaft.
Specific embodiment
Embodiment 1:
The present invention provide a kind of three-stage it is U-shaped it is adjustable charge installation high-voltage meter, the present invention provides three sections a kind of
Formula is U-shaped adjustable to charge installation high-voltage meter, including fixing end 5, sampling end 6, connecting shaft 10;The sampling end 6 passes through
Connecting shaft 10 is connect with fixing end 5, and 10 both ends of connecting shaft connect with two sampling end 6, fixing end 5 insulation wing nuts 4 respectively
It connects, sampling end 6, connecting shaft 10, fixing end 5 form three-stage U-shaped structure, and sampling end 6 and 5 both ends spacing of fixing end can pass through tune
Wing nut 4 is saved to adjust;6 port of sampling end is equipped with an open type electronics CT11, and 5 port of fixing end is equipped with and opens
Mouthful, 6 port of sampling end and 5 port of fixing end are respectively equipped with closeable bayonet iron core 7, and the lower end electronics CT1 is integrated control electricity
Road, electronics PT are integrated in inside integral control circuit.
Preferably, the sampling end 6 and 5 both ends spacing adjustable range of fixing end are in 630mm~1240mm
Preferably, it is 50mm that bayonet iron core 7, which can fix line footpath, at 6 port of sampling end and 5 port of fixing end2~
240mm2Overhead transmission line.
Preferably, device integrally uses the insulating materials of degree of protection IP67 to encapsulate, and is equipped with high pressure special isolation casing 8.
Preferably, the upper end electronics CT1 is equipped with rain-proof eaves 2, and sampling end 6 and 5 opening inner side of fixing end are equipped with intensive puncture needle
3, and have rubber mat protection.
Preferably, GPRS module is embedded in metering device.
Preferably, electronics CT obtains current sampling signal, is believed electric current by the difference electric discharge road inside integral control circuit
Number amplification, amplified signal is converted into the digital signal being proportional to by A/D, using digital phase correcting and high pass
Filtering removes the DC component in signal subsequently into an input terminal of digital multiplier;
Electronics PT obtains voltage sampling signal by way of electric resistance partial pressure, is discharged by the difference inside integral control circuit
Signal is amplified on road, and the digital signal being proportional to is converted into using A/D, into another input terminal of digital multiplier
Multiplying is carried out with the signal of current channel, completes the instantaneous power measurement of measured electric energy;
Multiplier exports instantaneous power and carries out Integral Processing into " number/frequency " conversion by wave digital lowpass filter
Device, is transformed into the frequency pulse signal proportional to measured electric energy mean power, and the frequency pulse signal is divided into high frequency arteries and veins
Signal and low frequency pulse signal are rushed, wherein high-frequency impulse is output to verification and microprocessor interface, and low-frequency pulse pin is hanging;Arteries and veins
It rushes input signal and is input to microcontroller after photoelectric conversion, after microcontroller receives pulse signal, by input arteries and veins
Number is rushed to be added up and realized according to meter constant size to electrical energy measurement;Wirelessly by microcontroller, it obtains
Energy information, and COMPREHENSIVE CALCULATING obtains total electric energy;GPRS/4G communication mode and Intelligent electricity utilization management system are passed through by microcontroller
Wireless network connection is established, realizes the remote meter reading and load monitoring of high-voltage electric energy meter.
When installation, device direction is adjusted, towards load side, the end A is sampling end 6, B for the side identified with " A ", " B "
For fixing end 5, fixing end bayonet iron core 7 is then opened, device is hung over into B phase conductor;The end A bayonet iron core 7 is opened again, hangs over A
Then phase conductor is shaken in hole 9 from puncture using installation handle and is tightened, punctured to the end A, and is using specific detectors detection
No to contact with high-voltage conducting wires, the bright expression of indicator light punctures in place, then tightens, punctures to the end B.If line spacing is longer, can
It unscrews wing nut and carries out length adjustment.
The present invention is designed using U-shaped structure, and " distribution intelligent terminal " is minimized, and overall weight is less than 12kg, without disconnected
Electricity can charge installation, be saved to only needing can be completed within 20 minutes, significantly on the time by installing a metering device 4 hours originally
Manpower and material resources are saved, efficiency is improved.Without any wiring, open C T blocks overhead line automatically, and Direct perforantes take electricity.GPRS
Module is embedded in high pressure gauge, directly local acquisition and teletransmission, and is not easy to distort.