CN110174574A - Integrated protection and monitoring device electrical measurement calibrating installation and electric flux calibration method - Google Patents
Integrated protection and monitoring device electrical measurement calibrating installation and electric flux calibration method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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Abstract
The invention discloses a kind of integrated protection and monitoring device electrical measurement calibrating installation, integrated protection and monitoring device is to be had the first communication interface on checking device by checking device, and calibrating installation of the invention includes standard set-up and control main website.Standard set-up includes current acquisition module, voltage acquisition module, timer, power electric energy arithmetic unit and central processing unit.The signal input part of current acquisition module, voltage acquisition module detects power supply and is applied to electric current and voltage signal at test point respectively and by the test point circuit connection where checking device.Preferably, current acquisition module, voltage acquisition module are all made of the voltage-stablizer with electrical signal collection function, can carry out pressure stabilizing to the fluctuation voltage of power input.Electric flux calibration method of the invention solves the problems, such as that the integrated protection and monitoring device of no pulse output on the market is difficult to verify electric flux, and the electric flux pulse without obtaining integrated protection and monitoring device exports.
Description
Technical field
The invention belongs to technical field of electric power, and in particular to integrated protection and monitoring device electrical measurement calibrating installation and electric flux
Calibration method.
Background technique
In recent years, as the rapid development of power grid construction and the degree of automation generally improve, plant stand end automation equipment is answered
With " eyes " more and more extensive, that comprehensive protector is run as detection device, the indexs such as its detection accuracy, power quality
Whether regulatory requirements are met, if can acquire various parameters of electric power, quickly and accurately to grasp the operation feelings of power grid in time
Condition is the key that measure complex automatic system accuracy, even more ensures the necessary condition of electric power netting safe running.
Currently, being found by the supervision and check to the forms such as grid-connected power plant " summer peak meeting ", " meeting the kurtosis winter ", scene is used
Different manufacturers, various specifications, miscellaneous comprehensive protector system, most power plant are not to 6kV integrated protection
The electrical measurement function of measure and control device carries out detection work, and " detection " that minority is carried out can only compare at last at most.Power plant at present
The electric energy of electricity consumption realizes that the part of electric energy is detected by integrated protection and monitoring device, and lacks metering tracking.Meanwhile passing through investigation
It was found that the electric flux of the integrated protection and monitoring device of most producers does not have pulse output interface, only communication output interface,
And existing integrated protection and monitoring device electrical measurement calibrating installation can not be carried out and have to the comprehensive protector of the communication way of output
The detection of effect.
Summary of the invention
The technical problem to be solved by the present invention is to solve the above shortcomings of the prior art and to provide integrated protection and monitoring devices
Electrical measurement calibrating installation and electric flux calibration method.
The present invention provides a kind of integrated protection and monitoring device electrical measurement calibrating installation, and integrated protection and monitoring device is tested dress
It sets, it is described that there is the first communication interface, including standard set-up and control main website on checking device；The standard set-up includes electric current
Acquisition module, voltage acquisition module, timer, power electric energy arithmetic unit and central processing unit；The current acquisition module, voltage
The signal input part of acquisition module detects power supply and is applied to test point respectively and by the test point circuit connection where checking device
The electric current and voltage signal at place；The power electric energy arithmetic unit includes Power arithmetic device and electric energy metering module, the power fortune
The signal output end for calculating the signal input part and current acquisition module, voltage acquisition module of device is separately connected, according to current acquisition
The power of module, the signal calculating test point of voltage acquisition module acquisition, the signal output end and central processing of Power arithmetic device
The signal input part of device connects；The power signal input terminal of the electric energy metering module and the signal output end of Power arithmetic device connect
It connects, the time signal input terminal of electric energy metering module is connect with the timer, and the signal output end of electric energy metering module is in
The signal input part of central processor connects, what the performance number and timer that electric energy metering module is exported according to Power arithmetic device exported
Time value calculates the energy value of test point accumulation；The timer is connect with central processing unit, for sending to central processing unit
Time signal, and adjusted according to the clock synchronization instruction completion time that central processing unit is sent；The central processing unit has communication mould
Block, the central processing unit are used to collect the output of the Power arithmetic device, the timer and the electric energy metering module
Information, and exchanged with the control main website；The control main website has the second communication interface and third communication interface, control
Main website establishes communication connection by the interface of the second communication interface and the central processing unit communication module, receives central processing unit
The information of transmission and to central processing unit send instruct；It controls main website and passes through third communication interface and described by the first of checking device
Communication interface establishes communication connection, acquires power and the energy value of the test point measured by checking device.
Preferably, the current acquisition module, voltage acquisition module are all made of the voltage-stablizer with electrical signal collection function.
Preferably, the pulse delivery outlet by checking device with feedback power value, the standard set-up further includes pulse
Converter and Error Calculator；The signal input part of the pulse converter and the signal of timer, the Power arithmetic device are defeated
Outlet is separately connected, and the power data that will test is converted to output of pulse signal；The Error Calculator has the first pulse defeated
Entrance and the second pulse input mouth, the first pulse input mouth are internal interface, are connected with the signal output end of pulse converter
It connects；The second pulse input mouth is external interface, is connect with described by the pulse delivery outlet of checking device, the letter of Error Calculator
Number output end is connect with the central processing, and Error Calculator is completed according to preset rules to the first, second pulse input message
After the comparison of number input value, Xiang Suoshu central processing unit exports comparison result.
Preferably, the communication module is SN75HVD3082E communication module, the communication module includes signal output end
RS485+ and RE485-, the RS485+ and RE485- pass through communication bus respectively and the control main website carries out data interaction,
The communication module further includes that signal input part TXD and RXD, the TXD and RXD are connect with the central processing unit respectively, is used
In the interaction for carrying out data in standard set-up.
The present invention also provides a kind of electric flux calibration methods one, comprising the following steps:
S11, by the current acquisition module of standard set-up, voltage acquisition module, be respectively connected to by where checking device test point electricity
Road, and make the control main website, the standard set-up and described communication connection is established by checking device.
S12, standard set-up Power arithmetic device the performance number of the test point is calculated according to the voltage and current of input, and
Send power information to the central processing unit, the control main website monitors the standard by second communication interface and fills
Set the power of detection.
S13, the control main website monitor the power detected by checking device by the third communication interface, to described
After standard set-up and the power stability detected by checking device, the control main website passes through second communication interface and described
Third communication interface respectively to the standard set-up and it is described by checking device simultaneously issue clock synchronization order, make the standard set-up with
The timer time consistency by checking device.
After S14, clock synchronization success, the control main website is distinguished by second communication interface and the third communication interface
To the standard set-up and it is described by checking device simultaneously issue timed power call together survey order, issue timing call together survey order number be
A times, calling the time of assigning surveyed and ordered together every time is B seconds, wherein A is the integer between 5 to 15, this range includes 5 and 15, B 1
Integer between to 5, this range include 1 and 5.
S15, the control main website read the mark by second communication interface and the third communication interface simultaneously
Standard apparatus and the performance number detected in B seconds by checking device, reading times are A times.
S16, when standard set-up and when by the data fluctuations of performance number that checking device A times is tested being respectively less than C, calculate A function
The average value of rate test value.When standard set-up and it is greater than C by the data fluctuations of A test value of any of checking device or is equal to C
When, the data of A test value are all reset, S13 to S15 is re-operated, until the data fluctuations of A test value are less than C,
In, 0.5% < C < 1.5%.
S17, the control main website calculate the electric flux relative error detected by checking device by formula (1), described
Formula (1) are as follows:
, whereinIndicate the average power content that the standard set-up detects in described B seconds；
For the average power content detected in described B seconds by checking device.
The present invention also provides a kind of electric flux calibration methods two, comprising the following steps:
S21, by the current acquisition module of standard set-up, voltage acquisition module, be respectively connected to by where checking device test point electricity
Road, and make the control main website, the standard set-up and described communication connection is established by checking device.
S22, before standard set-up starts detection, control main website record it is described by the current electric energy indicating value E of checking device0。
After S23, standard set-up start detection, the energy value that electric energy metering module calculates is fed back to control by central processing unit
Main website processed, while the control main website persistently records the energy value detected by checking device, when the electric energy of standard set-up detection
After value reaches preset value E, control main website is stopped recording.
S24, set it is described control main website finally record it is described by checking device detect electric energy indicating value as E1。
S25, the control main website calculate the electric flux relative error detected by checking device by formula (2), described
Formula (2) are as follows:。
The present invention also provides a kind of electric flux calibration methods three, comprising the following steps:
S31, by the current acquisition module of standard set-up, voltage acquisition module, be respectively connected to by where checking device test point electricity
Road, and make the control main website, the standard set-up and described communication connection is established by checking device.
In S32, standard set-up, the Power arithmetic device carries out Power arithmetic, the meter to the voltage and current value of acquisition
When device time signal is provided, the Power arithmetic device and the timer respectively send power signal and time signal to described
Pulse signal is sent to Error Calculator by pulse converter, the pulse converter.
S33, it sets in a period of time, the received umber of pulse of Error Calculator the first pulse input mouth is, the second pulse is defeated
The received umber of pulse of entrance is, the Error Calculator by formula (3) calculate it is described by checking device detect electric flux phase
To error, the formula (3) are as follows:。
Compared with prior art, electrical measurement calibrating installation and electric flux calibration method of the present invention solve no pulse on the market
The integrated protection and monitoring device of output is difficult to the problem of verifying electric flux, control main website by measurement integrated protection and monitoring device and
The performance number that standard set-up detects within a certain period of time calculates the electric flux error of integrated protection and monitoring device, comprehensive without obtaining
Close the electric flux pulse output of protection supervisory equipment.Also, in further embodiment, for the integrated protection for thering is pulse to export
Measure and control device, present invention provides corresponding calibration methods.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the integrated protection and monitoring device electrical measurement calibrating installation of the embodiment of the present invention one；
Fig. 2 is the circuit diagram of the communication module of the central processing unit of one embodiment of the invention；
Fig. 3 is the flow chart of electric flux calibration method one of the present invention；
Fig. 4 is the flow chart of electric flux calibration method two of the present invention；
Fig. 5 is the flow chart of electric flux calibration method three of the present invention.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Embodiment one:
Referring to Figure 1, Fig. 1 is the structural representation of the integrated protection and monitoring device electrical measurement calibrating installation of the embodiment of the present invention one
Figure.The present invention relates to a kind of integrated protection and monitoring device electrical measurement calibrating installation, integrated protection and monitoring device is by checking device, quilt
There is the first communication interface, calibrating installation of the invention includes standard set-up and control main website on checking device.
Standard set-up includes current acquisition module, voltage acquisition module, timer, power electric energy arithmetic unit and central processing
Device.The signal input part of current acquisition module, voltage acquisition module, respectively and by the test point circuit connection where checking device,
Detection power supply is applied to electric current and voltage signal at test point, including a b voltage signal Ua, Ub on c three-phase power line,
Uc and current signal Ia, Ib, Ic.In the present embodiment, current acquisition module, voltage acquisition module are all made of adopts with electric signal
Collect the voltage-stablizer of function, pressure stabilizing can be carried out to the fluctuation voltage of power input.
Power electric energy arithmetic unit includes Power arithmetic device and electric energy metering module, the signal input part and electricity of Power arithmetic device
Stream acquisition module, voltage acquisition module signal output end be separately connected, according to current acquisition module, voltage acquisition module acquire
Signal calculate the power of test point, the signal input part of the signal output end of Power arithmetic device and central processing unit connects.Electricity
The power signal input terminal of energy metering module is connect with the signal output end of Power arithmetic device, the time signal of electric energy metering module
Input terminal is connect with timer, and the signal output end of electric energy metering module and the signal input part of central processing unit connect, electric energy
The time value of performance number and timer output that metering module is exported according to Power arithmetic device calculates the energy value of test point accumulation.
Timer is connect with central processing unit, for sending out to central processing unit sending time signal, and in central processing unit
The deadline adjusts after sending clock synchronization to instruct, in other words time synchronization.
Central processing unit has communication module, and central processing unit is for collecting Power arithmetic device, timer and electrical energy measurement
The information of the output of module, and exchanged with control main website.
Controlling main website has the second communication interface and third communication interface, and control main website passes through the second communication interface and center
The interface of processor communication module establishes communication connection, receives information and refer to central processing unit transmission that central processing unit is sent
It enables.Control main website establishes communication connection with by the first communication interface of checking device by third communication interface, acquires by checking device
The power of the test point of measurement and energy value.
Preferably, power electric energy arithmetic unit can use ADE7758 type metering chip, and timer can be brilliant using MC-306
Vibration, voltage-stablizer can use MC34063A Linear voltage-stablizer, the model LM331 of pulse converter, the type of Error Calculator
Number be BF532.
Fig. 2 is referred to, Fig. 2 is the circuit diagram of the communication module of the central processing unit of one embodiment of the invention.It is preferred that
Ground, communication module are SN75HVD3082E communication module (using SN75HVD3082E chip as core), and communication module includes signal
Output end RS485+ and RE485-, RS485+ and RE485- pass through communication bus and the progress data interaction of control main website respectively, lead to
Interrogating module further includes signal input part TXD and RXD, and TXD and RXD are connect with central processing unit respectively, for carrying out standard set-up
The interaction of interior data.SN75HVD3082E communication module is the communication chip of a half-duplex low-power consumption, can be double over long distances
Transmission is up to the signal of 200kbps rate on strand cable.Such communication structure design may make that supply current is extremely low, be less than
0.6mA, when in the close pattern not communicated, supply current is almost nil, is suitble to the requirement of present apparatus low-power consumption, and signal is defeated
Outlet RS485+ and RE485- have bridged limit diode so that communication module circuit have wider common mode inhibition range and compared with
High ESD protection.
Calibration method one:
Incorporated by reference to referring to Fig. 1, Fig. 2, Fig. 3, Fig. 3 is the flow chart of electric flux calibration method one of the present invention.The electric flux calibration
Method one is divided for 7 steps, and process is as follows:
S11, by the current acquisition module of standard set-up, voltage acquisition module, be respectively connected to by where checking device test point electricity
Road, and make to control main website, standard set-up and communication connection is established by checking device.
S12, standard set-up Power arithmetic device the power of the test point is calculated according to the voltage and current of input, and
Send power information to central processing unit, control main website passes through the power that the second communication interface monitoring standard device detects.
S13, control main website monitor the power detected by checking device by third communication interface, to standard set-up and tested dress
After setting the power stability of detection, control main website to standard set-up and is detected respectively by the second communication interface and third communication interface
Device issues clock synchronization order simultaneously, makes standard set-up and the timer time consistency by checking device.
After S14, clock synchronization success, control main website by the second communication interface and third communication interface respectively to standard set-up and
It is issued timed power simultaneously by checking device and calls survey order together, issuing timing and calling the number of survey order together is 10 times, calls together survey order every time
Assigning the time is 2 seconds.
S15, control main website read standard set-up simultaneously and by checking device by the second communication interface and third communication interface
The performance number detected in 2 seconds, reading times are 10 times.
S16, when standard set-up and by checking device 10 times test performance number data fluctuations small 1% when, calculate 10 function
The average value of rate test value；When standard set-up or by the data fluctuations of 10 test values of checking device be greater than or equal to 1% when, 10 times
The data of test value are all reset, and re-operate S13 to S15, until the data fluctuations of 10 test values are less than 1%.Control data
Fluctuation be accuracy in order to improve data, prevent from fluctuating it is excessive lead to biggish error, repeatedly be averaged can be with for measurement
Further increase the accuracy of data.
S17, control main website are calculated by formula (1) by the electric flux relative error of checking device, formula (1) are as follows:
Wherein,Indicate the average power content that standard set-up detects in 2 seconds,It indicates to be detected in 2 seconds by checking device flat
Equal performance number.
Control main website by measurement integrated protection and monitoring device and the performance number that detects within a certain period of time of standard set-up come
The electric flux error of integrated protection and monitoring device is calculated, the performance number by checking device and standard set-up need to be only measured, without obtaining
It is exported by the electric flux pulse of checking device, the integrated protection and monitoring device suitable for the output of no pulse on the market.
Calibration method two:
Incorporated by reference to being the flow chart of electric flux calibration method two of the present invention referring to Fig. 1, Fig. 2 and Fig. 4, Fig. 4, the electric flux is calibrated
Method two is divided for 5 steps, and process is as follows:
S21, by the current acquisition module of standard set-up, voltage acquisition module, be respectively connected to by where checking device test point electricity
Road, and make to control main website, standard set-up and communication connection is established by checking device.
S22, before standard set-up starts detection, control main website record by the current electric energy indicating value E of checking device0。
After S23, standard set-up start detection, the energy value that electric energy metering module calculates is fed back to control by central processing unit
Main website processed, while controlling main website and persistently recording the energy value detected by checking device, when the energy value of standard set-up detection reaches pre-
If after value E, control main website is stopped recording.
S24, the electric energy indicating value of control main website last time record detected by checking device is set as E1。
S25, control main website calculate the electric flux relative error detected by checking device by formula (2), formula (2) are as follows:。
Electric flux calibration method two is exported without acquisition by the electric flux pulse of checking device, and calculating speed is fast, operation
It is convenient.
Embodiment two:
Continuing with referring to Fig. 1, on the basis of example 1, there is the pulse delivery outlet of feedback power value, this reality by checking device
Applying a standard set-up further includes pulse converter and Error Calculator.
The signal input part of pulse converter and the signal output end of timer, Power arithmetic device are separately connected, and will test
Power data be converted to output of pulse signal.
Error Calculator has the first pulse input mouth and the second pulse input mouth, and the first pulse input mouth connects for inside
Mouthful, it is connect with the signal output end of pulse converter；Second pulse input mouth is external interface, is exported with by the pulse of checking device
Mouthful connection, the signal output end of Error Calculator connect with central processing, Error Calculator according to preset rules completion to first,
After the comparison of second pulse input mouth signal input value, comparison result is exported to central processing unit.
Electric flux calibration method one, electric flux calibration method two, needle had both can be implemented in the present embodiment electrical measurement calibrating installation
To with pulse delivery outlet by checking device, additionally it is possible to implement electric flux calibration method three.
Incorporated by reference to referring to Fig. 1, Fig. 2 and Fig. 5, Fig. 5 is the flow chart of electric flux calibration method three of the present invention.
Electric flux calibration method three divides for 3 steps, and process is as follows:
S31, by the current acquisition module of standard set-up, voltage acquisition module, be respectively connected to by where checking device test point electricity
Road, and make to control main website, standard set-up and communication connection is established by checking device.
In S32, standard set-up, Power arithmetic device carries out Power arithmetic to the voltage and current value of acquisition, and timer provides
Time signal, Power arithmetic device and timer send power signal and time signal to pulse converter, impulse transfer respectively
Pulse signal is sent to Error Calculator by device.
S33, it sets in a period of time, the received umber of pulse of Error Calculator the first pulse input mouth is, the second pulse is defeated
The received umber of pulse of entrance is, Error Calculator is by formula (3) calculating by the electric flux relative error of checking device, formula
(3) are as follows:。
The umber of pulse (also referred to as energy value) exported in-specific time by checking device is detected by checking device
The energy value (J) of test point accumulation；
The umber of pulse of-specific time internal standard standard apparatus output, the i.e. energy value (J) of the test point accumulation of standard set-up detection.
The method can be calculated directly by Error Calculator by the electric flux relative error of checking device, defeated for there is pulse
Integrated protection and monitoring device out calculates electric flux relative error without using control main website, has saved equipment, operation is more
It is convenient.The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment, all categories
Technical solution under thinking of the present invention all belongs to the scope of protection of the present invention.It should be pointed out that for the common of the art
For technical staff, several improvements and modifications without departing from the principles of the present invention should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of integrated protection and monitoring device electrical measurement calibrating installation, integrated protection and monitoring device be by checking device, it is described tested
There is the first communication interface, it is characterised in that including standard set-up and control main website on device；
The standard set-up includes current acquisition module, voltage acquisition module, timer, power electric energy arithmetic unit and central processing
Device；
The signal input part of the current acquisition module, voltage acquisition module, respectively and by the test dot circuit where checking device
Connection, detection power supply are applied to electric current and voltage signal at test point；
The power electric energy arithmetic unit includes Power arithmetic device and electric energy metering module, the signal input part of the Power arithmetic device
It is separately connected with the signal output end of current acquisition module, voltage acquisition module, according to current acquisition module, voltage acquisition module
The signal of acquisition calculates the power of test point, and the signal output end of Power arithmetic device and the signal input part of central processing unit connect
It connects；The power signal input terminal of the electric energy metering module is connect with the signal output end of Power arithmetic device, electric energy metering module
Time signal input terminal connect with the timer, the signal output end of electric energy metering module and the signal of central processing unit are defeated
Enter end connection, the time value that the performance number and timer that electric energy metering module is exported according to Power arithmetic device export calculates test point
The energy value of accumulation；
The timer is connect with central processing unit, is used for central processing unit sending time signal, and according to central processing unit
The clock synchronization instruction completion time of transmission adjusts；
The central processing unit has communication module, and the central processing unit is for collecting the Power arithmetic device, the timing
The information of the output of device and the electric energy metering module, and exchanged with the control main website；
The control main website have the second communication interface and third communication interface, control main website by the second communication interface with it is described
The interface of central processing unit communication module establishes communication connection, receives information and send out to central processing unit that central processing unit is sent
Send instruction；Control main website establishes communication connection by the first communication interface of checking device with described by third communication interface, acquires
The power of the test point measured by checking device and energy value.
2. a kind of integrated protection and monitoring device electrical measurement calibrating installation according to claim 1, it is characterised in that: the electricity
Stream acquisition module, voltage acquisition module are all made of the voltage-stablizer with electrical signal collection function.
3. a kind of integrated protection and monitoring device electrical measurement calibrating installation according to claim 1, it is characterised in that: the quilt
Checking device has the pulse delivery outlet of feedback power value, and the standard set-up further includes pulse converter and Error Calculator；
The signal input part of the pulse converter and the signal output end of timer, the Power arithmetic device are separately connected, will
The power data of detection is converted to output of pulse signal；
The Error Calculator has the first pulse input mouth and the second pulse input mouth, and the first pulse input mouth is inside
Interface is connect with the signal output end of pulse converter；The second pulse input mouth is external interface, with described by checking device
The connection of pulse delivery outlet, the signal output end of Error Calculator connect with the central processing, and Error Calculator is according to presetting
After rule is completed to the comparison of the first, second pulse input mouth signal input value, Xiang Suoshu central processing unit exports comparison result.
4. a kind of integrated protection and monitoring device electrical measurement calibrating installation according to any one of claim 1-3, feature
Be: the communication module be SN75HVD3082E communication module, the communication module include signal output end RS485+ and
RE485-, the RS485+ and RE485- pass through communication bus respectively and the control main website carries out data interaction, the communication
Module further includes that signal input part TXD and RXD, the TXD and RXD are connect with the central processing unit respectively, for being marked
The interaction of data in standard apparatus.
5. a kind of electric flux calibration side realized using integrated protection and monitoring device electrical measurement calibrating installation described in claim 1
Method, it is characterised in that the following steps are included:
S11, by the current acquisition module of standard set-up, voltage acquisition module, be respectively connected to by where checking device test point electricity
Road, and make the control main website, the standard set-up and described communication connection is established by checking device；
S12, standard set-up Power arithmetic device calculate the performance number of the test point according to the voltage and current of input, and by function
Rate information sends the central processing unit to, and the control main website monitors the standard set-up inspection by second communication interface
The power of survey；
S13, the control main website monitor the power detected by checking device by the third communication interface, to the standard
After device and the power stability detected by checking device, the control main website passes through second communication interface and the third
Communication interface respectively to the standard set-up and it is described by checking device simultaneously issue clock synchronization order, make the standard set-up with it is described
By the timer time consistency of checking device；
After S14, clock synchronization success, the control main website is by second communication interface and the third communication interface respectively to institute
State standard set-up and it is described by checking device and meanwhile issue timed power call together survey order, issue timing call together survey order number be A times,
Every time call together survey order assign the time be B second, wherein A be 5 to 15 between integer, this range include 5 and 15, B for 1 to 5 it
Between integer, this range include 1 and 5；
S15, the control main website read the standard by second communication interface and the third communication interface simultaneously and fill
Set with the performance number detected in B seconds by checking device, reading times are A times；
S16, when standard set-up and when by the data fluctuations of performance number that checking device A times is tested being respectively less than C, both calculate A function
The average value of rate test value；When standard set-up and it is greater than C by the data fluctuations of A test value of any of checking device or is equal to C
When, the data of A test value are all reset, S13 to S15 is re-operated, until the data fluctuations of A test value are less than C,
In, 0.5% < C < 1.5%；
S17, the control main website calculate the electric flux relative error detected by checking device by formula (1), the formula
(1) are as follows:
, whereinIndicate the average power content that the standard set-up detects in described B seconds；
Indicate the average power content detected in described B seconds by checking device.
6. a kind of electric flux calibration side realized using integrated protection and monitoring device electrical measurement calibrating installation described in claim 1
Method, it is characterised in that the following steps are included:
S21, by the current acquisition module of standard set-up, voltage acquisition module, be respectively connected to by where checking device test point electricity
Road, and make the control main website, the standard set-up and described communication connection is established by checking device；
S22, before standard set-up starts detection, control main website record it is described by the current electric energy indicating value E of checking device0；
After S23, standard set-up start detection, the energy value that electric energy metering module calculates is fed back to control master by central processing unit
It stands, while the control main website persistently records the energy value detected by checking device, when the energy value of standard set-up detection reaches
To after preset value E, control main website is stopped recording；
S24, set it is described control main website finally record it is described by checking device detect electric energy indicating value as E1；
S25, the control main website calculate the electric flux relative error detected by checking device by formula (2), the formula
(2) are as follows:。
7. a kind of electric flux calibration side realized using integrated protection and monitoring device electrical measurement calibrating installation as claimed in claim 3
Method, it is characterised in that the following steps are included:
S31, by the current acquisition module of standard set-up, voltage acquisition module, be respectively connected to by where checking device test point electricity
Road, and make the control main website, the standard set-up and described communication connection is established by checking device；
In S32, standard set-up, the Power arithmetic device carries out Power arithmetic, the timer to the voltage and current value of acquisition
Time signal is provided, the Power arithmetic device and the timer send power signal and time signal to the pulse respectively
Pulse signal is sent to Error Calculator by converter, the pulse converter；
S33, it sets in a period of time, the received umber of pulse of Error Calculator the first pulse input mouth is, the second pulse input mouth
Received umber of pulse is, it is opposite accidentally that the Error Calculator passes through formula (3) calculating electric flux detected by checking device
Difference, the formula (3) are as follows:。
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