CN106443554A - Auxiliary integrated decoupling network system for electric energy meter EMS online test system - Google Patents
Auxiliary integrated decoupling network system for electric energy meter EMS online test system Download PDFInfo
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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
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
Abstract
The invention provides an auxiliary integrated decoupling network system for an electric energy meter EMS online test system. The network system comprises a voltage decoupling network device, a current decoupling network device and a signal decoupling network device, wherein the voltage decoupling network device, the current decoupling network device and the signal decoupling network device are connected between an electric energy meter calibrating device and an EMS test system. According to the invention, the voltage decoupling network device, the current decoupling network device and the signal decoupling network device are added between the electric energy meter calibrating device and the EMS test system, so as to prevent the EMS test system from producing strong interference effect or damaging the electric energy meter calibrating device. The insertion loss of 9kHz to 1GHz is not less than 20db. The system withstands the 30V/m radio frequency electromagnetic field strength required by GB/T 17626.3, 20V radio frequency conduction disturbance level required by GB/T 17626.6, 4.6kV fast transient pulse group interference required by GB/T 17626.4, and 4kV oscillation wave interference required by GB/T 17626.12. The reactive component is small. The electric energy meter calibrating device can be protected from the system level. The requirements of domestic and international standards are basically met. Online EMS test of an electric energy meter is realized. Protection is realized without changing the electric energy meter calibrating device.
Description
Technical field
The present invention relates to high-voltage large current broadband decoupling technique field, survey online especially for a kind of electric energy meter EMS
The aided synthesis decoupling network system of test system.
Background technology
《IEC62052-11:2003 alternating current measurement Device-Generals require, test and experimental condition the 11st part:Measurement sets
Standby》And《JJF1245.1-2010 installing type electric energy meter type evaluation outline General Requirement》Require that electric energy meter needs to carry out online
EMS tests, to simulate the measure error under electric energy meter normal operating conditions.Electric energy meter calibrating apparatus belongs to precision instrument and experiment instrument
Device, itself anti-EMS class requirement is relatively low, it is difficult to meet high-grade EMS test request.
Content of the invention
For the problems referred to above, the present invention provides the aided synthesis decoupling network system of a kind of electric energy meter EMS Online Transaction Processing
System, increases voltage circuit, current circuit and signal line decoupling function, the protection electric energy meter calibrating apparatus of system.
For solving the problems referred to above, the technical scheme that the present invention takes is：The aided synthesis of electric energy meter EMS Online Transaction Processing
Decoupling network system, including the voltage decoupling network device being connected between electric energy meter calibrating apparatus and EMS test system, electric current
Decoupling network device and signal decoupling network device；
Described voltage decoupling network device includes common mode high frequency LC decoupling circuit, the common mode intermediate frequency LC decoupling being sequentially connected with
Circuit and differential mode LC decoupling circuit, described common mode high frequency LC decoupling circuit includes high frequency height Insertion Loss common mode inductance and low-frequency high-voltage
Y capacitance；Described common mode intermediate frequency LC decoupling circuit includes intermediate frequency common mode inductance and high-frequency and high-voltage Y capacitance；Described differential mode LC goes
Coupling circuit includes high frequency differential mode inductance and high pressure X electric capacity；
Described electric current decoupling network device includes the identical decoupling circuit of three-phase structure, and described decoupling circuit includes depending on
The one-level common mode high frequency LC decoupling circuit of secondary connection, differential mode LC decoupling circuit, two grades of common mode high frequency LC decoupling circuits；Described one
Level common mode high frequency LC decoupling circuit includes the first high frequency height Insertion Loss common mode inductance and low-frequency high-voltage Y capacitance；Described differential mode LC goes
Coupling circuit includes high frequency differential mode inductance and high-frequency and high-voltage Y capacitance；Two grades of described common mode high frequency LC decoupling circuits include that second is high
Frequently high Insertion Loss common mode inductance, low-frequency high-voltage Y capacitance and high pressure X electric capacity；
Described signal decoupling network device includes common mode high frequency LC decoupling circuit and the differential mode LC decoupling electricity being sequentially connected with
Road, described common mode high frequency LC decoupling circuit includes high frequency height Insertion Loss common mode inductance, high-frequency and high-voltage Y capacitance and high pressure X electric capacity；Institute
The differential mode LC decoupling stated includes high frequency differential mode inductance, high-frequency and high-voltage Y capacitance and high pressure X electric capacity.
Described voltage decoupling network device is such：
Described common mode high frequency LC decoupling circuit is specially：The L1_input of high frequency height Insertion Loss common mode inductance, L2_input,
L3_input and N_input pin is respectively connected to, as the primary electrical pressure side of voltage decoupling network device, the electricity that EMS tests system
Pressure input；L1_output, L2_output, L3_output and N_output pin of high frequency height Insertion Loss common mode inductance is connected to
Common mode intermediate frequency LC decoupling circuit, and be grounded by low-frequency high-voltage Y capacitance respectively；
Described common mode intermediate frequency LC decoupling circuit is specially：L1_input, L2_input, L3_ of intermediate frequency common mode inductance
Input and N_input pin be respectively connected to high frequency height Insertion Loss common mode inductance L1_output, L2_output, L3_output and
N_output pin, L1_output, L2_output, L3_output and N_output pin of intermediate frequency common mode inductance leads to respectively
Cross high-frequency and high-voltage Y capacitance and be grounded and be connected to differential mode LC decoupling circuit；
Described differential mode LC decoupling circuit is specially：One end of first, second, third and fourth high frequency differential mode inductance is respectively
Being connected to L1_output, L2_output, L3_output and N_output pin of intermediate frequency common mode inductance, the other end is as voltage
The secondary electrical pressure side of decoupling network device is respectively connected to the voltage output end of electric energy meter calibrating apparatus and passes through high-frequency and high-voltage Y respectively
Connected by a high pressure X electric capacity respectively between capacity earth, and any two high frequency differential mode inductance.
Described electric current decoupling network device is such：
Described one-level common mode high frequency LC decoupling circuit is specially：The L1_input of the first high frequency height Insertion Loss common mode inductance draws
Pin is connected to the current input terminal of electric energy meter as the primary current output of electric current decoupling network device, and the first high frequency height Insertion Loss is altogether
The L2_input pin of mould inductance is connected to the electric current output of electric energy meter as the primary current input of electric current decoupling network device
End；The L1_output pin of the first high frequency height Insertion Loss common mode inductance and L2_output pin pass through two low frequencies in parallel respectively
High pressure Y capacitance is grounded and is connected to differential mode LC decoupling circuit；
Described differential mode LC decoupling circuit includes the L1_output pin being connected to the first high frequency height Insertion Loss common mode inductance respectively
And between the L1_input pin of the second high frequency differential mode inductance, and the L2_output of the first high frequency height Insertion Loss common mode inductance draws
The first high frequency differential mode inductance between the L2_input pin of pin and the second high frequency differential mode inductance and the second high frequency differential mode inductance, two
High frequency differential mode inductance is grounded by high-frequency and high-voltage Y capacitance respectively；
Two grades of described common mode high frequency LC decoupling circuits are specially：The L1_output of the second high frequency height Insertion Loss common mode inductance
Pin is connected to the current input terminal of electric energy meter calibrating apparatus as the secondary current output of electric current decoupling network device, and second is high
Frequently high Insertion Loss common mode inductance L2_output pin is connected to electric energy meter inspection as the secondary current input of electric current decoupling network device
Determine the current output terminal of device；The L1_output pin of the second high frequency height Insertion Loss common mode inductance and L2_output pin lead to respectively
Cross two low-frequency high-voltage Y capacitance ground connection in parallel, and be connected to two high pressure X electric capacity in parallel between the two.
Described signal decoupling network device is such：
Described common mode high frequency LC decoupling circuit is specially：P+_input, GND_input of high frequency height Insertion Loss common mode inductance
It is respectively connected to the signal input of error module with power_input pin as the primary signal end of signal decoupling network device
End；P+_output, GND_output and power_output pin of high frequency height Insertion Loss common mode inductance is connected to differential mode LC decoupling electricity
Road is simultaneously grounded by high-frequency and high-voltage Y capacitance respectively, and between P+_output pin and GND_output pin, and GND_
It is connected by two high pressure X electric capacity in parallel respectively between output pin with power_output pin；
Described differential mode LC decoupling circuit is specially：In parallel first and the 6th high frequency differential mode inductance, in parallel second and
4th high frequency differential mode inductance, and one end of the 3rd and the 5th high frequency differential mode inductance of parallel connection is respectively connected to high frequency height Insertion Loss common mode
P+_output, GND_output and power_output pin of inductance, the other end is as the secondary of signal decoupling network device
Signal end is respectively connected to the error testing end of electric energy meter calibrating apparatus and is grounded by high-frequency and high-voltage Y capacitance respectively, and first with
Between second high frequency differential mode inductance, and respectively by two high pressure X electricity in parallel between second with the 3rd high frequency differential mode inductance
Hold and connect.
The present invention is by setting up voltage decoupling network device, electric current between calibrator for watt-hour meter and EMS test system
Decoupling network device and signal decoupling network device, the protection electric energy meter calibrating apparatus of system, prevent EMS test system from producing
Strong jamming impact or damage electric energy meter calibrating apparatus.9kHz～1GHz insertion loss can be made to be not less than 20db, bear GB/
The required 20V Conducted Radio Frequency harassing and wrecking electricity applying of the 30V/m radio-frequency electromagnetic field intensity of the required applying of T17626.3, GB/T 17626.6
The required 4.6kV Clusters applying of flat, GB/T 17626.4 disturbs, the required 4kV applying of GB/T 17626.12 shakes
Swing wave interference, and idle component is less, electric energy meter calibrating apparatus can be protected from system level.Fundamentally meet and mark both at home and abroad
Accurate requirement, it is achieved the EMS on-line testing of electric energy meter, realizes protection on the premise of not changing electric energy meter calibrating apparatus.
Brief description
Fig. 1 is electric energy meter immunity to interference EMS test system logic topological diagram；
Fig. 2 is voltage decoupling network device circuit theory diagrams；
Fig. 3 is electric current decoupling network device circuit theory diagrams；
Fig. 4 is signal decoupling network device circuit theory diagrams；
Fig. 5 is voltage circuit and current circuit isolated current circuit test voltage applying figure；
Fig. 6 is voltage circuit and current circuit isolated voltage circuit test voltage applying figure；
Fig. 7 is voltage circuit and current circuit non-isolated voltage x current line test voltage applying figure.
Wherein, CM1～CM8 is high frequency height Insertion Loss common mode inductance, and CM9 is intermediate frequency common mode inductance, CY1～CY24, CY31～
CY34 is low-frequency high-voltage Y capacitance, and L1～L16 is high frequency differential mode inductance, and CY25～CY30, CY35～CY48 are high-frequency and high-voltage Y electricity
Holding, C1～C20 is high pressure X electric capacity.
Detailed description of the invention
Embodiment one
The aided synthesis decoupling network system of electric energy meter EMS Online Transaction Processing, as described in Figure 1, electric energy meter EMS surveys online
The aided synthesis decoupling network system of test system, including the voltage being connected between electric energy meter calibrating apparatus and EMS test system
Decoupling network device, electric current decoupling network device and signal decoupling network device；
As described in Figure 2, described voltage decoupling network device includes common mode high frequency LC decoupling circuit, the common mode being sequentially connected with
Intermediate frequency LC decoupling circuit and differential mode LC decoupling circuit, described common mode high frequency LC decoupling circuit includes high frequency height Insertion Loss common mode inductance
CM8 and low-frequency high-voltage Y capacitance；Described common mode intermediate frequency LC decoupling circuit includes intermediate frequency common mode inductance CM9 and high-frequency and high-voltage Y electricity
Hold；Described differential mode LC decoupling circuit includes high frequency differential mode inductance and high pressure X electric capacity；
Described common mode high frequency LC decoupling circuit is specially：L1_input, L2_ of high frequency height Insertion Loss common mode inductance CM8
Input, L3_input and N_input pin is as primary electrical pressure side L1_in of voltage decoupling network device, L2_in, L3_in
It is respectively connected to the voltage input end of EMS test system with N_in；L1_output, L2_ of high frequency height Insertion Loss common mode inductance CM8
Output, L3_output and N_output pin is connected to common mode intermediate frequency LC decoupling circuit, and passes through the 34th, the 3rd respectively
13, the 32nd and the 31st low-frequency high-voltage Y capacitance CY34, CY33, CY32 and CY31 ground connection；
Described common mode intermediate frequency LC decoupling circuit is specially：L1_input, L2_input, L3_ of intermediate frequency common mode inductance CM9
Input and N_input pin is respectively connected to L1_output, L2_output, L3_ of high frequency height Insertion Loss common mode inductance CM8
Output and N_output pin, L1_output, L2_output, L3_output and N_output of intermediate frequency common mode inductance CM9
Pin respectively by the 35th, the 36th, the 37th and the 38th high-frequency and high-voltage Y capacitance CY35, CY36, CY37 and
CY38 is grounded and is connected to differential mode LC decoupling circuit；
Described differential mode LC decoupling circuit is specially：First, second, third and fourth high frequency differential mode inductance L1, L2, L3 and
One end of L4 is respectively connected to L1_output, L2_output, L3_output and N_output pin of intermediate frequency common mode inductance CM9,
The other end is respectively connected to electric energy as secondary electrical pressure side L1_out, L2_out, L3_out and N_out of voltage decoupling network device
The voltage output end of table calibrating installation respectively by the 42nd, the 41st, the 40th and the 39th high-frequency and high-voltage Y electricity
Hold CY42, CY41, CY40 and CY39 ground connection, and respectively by the 7th, the 8th, the 9th, the between any two high frequency differential mode inductance
Tenth, the 11st and the 12nd high pressure X electric capacity C7, C8, C9, C10, C11 and C12 connects.
As described in Figure 3, described electric current decoupling network device includes the identical decoupling circuit of three-phase structure, described decoupling
Circuit includes that the one-level common mode high frequency LC decoupling circuit being sequentially connected with, differential mode LC decoupling circuit, two grades of common mode high frequency LC decouple electricity
Road；Described one-level common mode high frequency LC decoupling circuit includes the first high frequency height Insertion Loss common mode inductance CM1 and low-frequency high-voltage Y capacitance；
Described differential mode LC decoupling circuit includes high frequency differential mode inductance and high-frequency and high-voltage Y capacitance；Two grades of described common mode high frequency LC decouplings
Circuit includes the second high frequency height Insertion Loss common mode inductance CM2, low-frequency high-voltage Y capacitance and high pressure X electric capacity；
Described one-level common mode high frequency LC decoupling circuit is specially：The L1_ of the first high frequency height Insertion Loss common mode inductance CM1
Input pin is connected to the current input terminal of electric energy meter as the primary current output I1 of electric current decoupling network device, and first is high
The L2_input pin of frequently high Insertion Loss common mode inductance CM1 is connected to electricity as the primary current input N1 of electric current decoupling network device
The current output terminal of energy table；The L1_output pin of the first high frequency height Insertion Loss common mode inductance CM1 the first low frequency in parallel is high
Pressure Y capacitance CY1 and the second low-frequency high-voltage Y capacitance CY2 are grounded and are connected to differential mode LC decoupling circuit, the first high frequency height Insertion Loss common mode electricity
L2_output pin the 3rd low-frequency high-voltage Y capacitance CY3 in parallel of sense CM1 and the 4th low-frequency high-voltage Y capacitance CY4 ground connection
And it is connected to differential mode LC decoupling circuit；
Described differential mode LC decoupling circuit includes the L1_output being connected to the first high frequency height Insertion Loss common mode inductance CM1 respectively
Between the L1_input pin of pin and the second high frequency differential mode inductance CM2, and the first high frequency height Insertion Loss common mode inductance CM1
The 11st high frequency differential mode inductance L11 between the L2_input pin of L2_output pin and the second high frequency differential mode inductance CM2 and
12nd high frequency differential mode inductance L12；11st high frequency differential mode inductance L11 is grounded by the 25th high-frequency and high-voltage Y capacitance CY25,
12nd high frequency differential mode inductance L12 is by the 26th high-frequency and high-voltage Y capacitance CY26 ground connection；
Two grades of described common mode high frequency LC decoupling circuits are specially：The L1_ of the second high frequency height Insertion Loss common mode inductance CM2
Output pin is connected to the electric current of electric energy meter calibrating apparatus as the secondary current output I1_out of electric current decoupling network device
Input, the L2_output pin of the second high frequency height Insertion Loss common mode inductance CM2 is as the secondary current of electric current decoupling network device
Input N1_out is connected to the current output terminal of electric energy meter calibrating apparatus；The L1_ of the second high frequency height Insertion Loss common mode inductance CM2
Be connected between output pin and L2_output pin parallel connection the first high pressure X electric capacity C1 and the second high pressure X electric capacity C2, second
The L1_output pin of high frequency height Insertion Loss common mode inductance CM2 the 5th low-frequency high-voltage Y capacitance CY5 in parallel and the 6th low frequency
High pressure Y capacitance CY6 is grounded, and the L2_output pin of the second high frequency height Insertion Loss common mode inductance CM2 the 7th low frequency in parallel is high
Pressure Y capacitance CY7 and the 8th low-frequency high-voltage Y capacitance CY8 ground connection.
As described in Figure 4, described signal decoupling network device includes common mode high frequency LC decoupling circuit and the difference being sequentially connected with
Mould LC decoupling circuit, described common mode high frequency LC decoupling circuit includes high frequency height Insertion Loss common mode inductance CM7, high-frequency and high-voltage Y capacitance
With high pressure X electric capacity；Described differential mode LC decoupling includes high frequency differential mode inductance, high-frequency and high-voltage Y capacitance and high pressure X electric capacity；
Described common mode high frequency LC decoupling circuit is specially：P+_input, GND_ of high frequency height Insertion Loss common mode inductance CM7
Input and power_input pin is as primary signal end P+_in, GND_in and power_in of signal decoupling network device
It is respectively connected to that the signal input part 5V voltage of error module, low level be public and signal high level；High frequency height Insertion Loss common mode inductance
P+_output, GND_output and power_output pin of CM7 is connected to differential mode LC decoupling circuit and passes through the 40th respectively
5th, the 44th and the 43rd high-frequency and high-voltage Y capacitance CY45, CY44 and CY43 ground connection, and P+_output pin and GND_
Between output pin in parallel the 13rd and the 14th high pressure X electric capacity C13 and C14 connect, GND_output pin with
Between power_output pin, the 15th and the 16th high pressure X electric capacity C15 and C16 in parallel connects；
Described differential mode LC decoupling circuit is specially：In parallel the 5th and the 6th high frequency differential mode inductance L5 and L6, in parallel
7th and the 8th high frequency differential mode inductance L7 and L8, and the 9th of parallel connection divide with one end of the tenth high frequency differential mode inductance L9 and L10
Not being connected to P+_output, GND_output and power_output pin of high frequency height Insertion Loss common mode inductance CM7, the other end is made
Secondary signal end P+_out, GND_out and power_out for signal decoupling network device are respectively connected to electric energy meter calibrating apparatus
Error testing end 5V voltage, low level is public and signal high level pass through the 48th, the 47th and the 40th respectively
Six high-frequency and high-voltage Y capacitance CY48, CY47 and CY46 ground connection, and between the 5th and the 7th high frequency differential mode inductance in parallel the tenth
Seven and the 18th high pressure X electric capacity C17 and C18 connect, between the 7th and the 9th high frequency differential mode inductance in parallel the 19th and
20th high pressure X electric capacity C19 and C20 connects.
As described in Figure 5, the voltage output end of electric energy meter calibrating apparatus is connected to the secondary electrical pressure side of voltage decoupling network device
L1_out, L2_out, L3_out and N_out, primary electrical pressure side L1_in of voltage decoupling network device, L2_in, L3_in and N_
In is connected to electric energy meter, it is achieved electric energy meter is powered；
The current output terminal of electric energy meter calibrating apparatus be connected to electric current decoupling network device secondary current input N1_out,
N2_out, N3_out, primary current output I1, I2, I3 of electric current decoupling network device be connected to the current input terminal of electric energy meter,
The current output terminal of electric energy meter is connected to primary current input N1, N2, N3 of electric current decoupling network device, and electric current decoupling network fills
Secondary current output I1_out, I2_out, I3_out of putting are connected to the current input terminal of electric energy meter calibrating apparatus, it is achieved electric energy
Table is powered；
The error testing end 5V voltage of electric energy meter calibrating apparatus, low level are public and signal high level is respectively connected to signal and goes
Secondary signal end P+_out, GND_out and power_out of coupling network equipment, the primary signal end P of signal decoupling network device
+ _ in, GND_in and power_in is respectively connected to that the signal input part 5V voltage of error module, low level be public and the high electricity of signal
Flat, error module uses non-contact type photoelectricity to inductively measure electric energy meter error.
Wherein electric current decoupling network device is high pressure main applying component, and voltage is that high pressure couples with signal decoupling network device
Component.Strong jamming or high pressure can be decoupled in the working range that electric energy meter calibrating apparatus can bear by decoupling network system, real
Now protect.
Embodiment two
As described in Figure 6, the voltage output end of electric energy meter calibrating apparatus is connected to the secondary electrical pressure side of voltage decoupling network device
L1_out, L2_out, L3_out and N_out, primary electrical pressure side L1_in of voltage decoupling network device, L2_in, L3_in and N_
In is connected to the voltage input end of EMS test system, and the voltage output end of EMS test system is connected to electric energy meter, it is achieved electric energy meter supplies
Electricity.Remainder is with embodiment one.
Wherein voltage decoupling network device is high pressure main applying component, and electric current is that high pressure couples with signal decoupling network device
Component.Strong jamming or high pressure can be decoupled in the working range that electric energy meter calibrating apparatus can bear by decoupling network system, real
Now protect.
Embodiment three
As described in Figure 7, voltage circuit and current circuit terminals one_to_one corresponding short circuit in electric energy meter.Remainder is with enforcement
Example two.
Wherein voltage and electric current decoupling network device are high pressure main applying component, and signal decoupling network device is high pressure coupling
Component.Strong jamming or high pressure can be decoupled in the working range that electric energy meter calibrating apparatus can bear by decoupling network system, real
Now protect.
Claims (4)
1. the aided synthesis decoupling network system of electric energy meter EMS Online Transaction Processing, it is characterised in that：Including be connected to electric energy meter
Voltage decoupling network device between calibrating installation and EMS test system, electric current decoupling network device and signal decoupling network dress
Put；
Described voltage decoupling network device includes common mode high frequency LC decoupling circuit, the common mode intermediate frequency LC decoupling circuit being sequentially connected with
With differential mode LC decoupling circuit, described common mode high frequency LC decoupling circuit includes high frequency height Insertion Loss common mode inductance and low-frequency high-voltage Y electricity
Hold；Described common mode intermediate frequency LC decoupling circuit includes intermediate frequency common mode inductance and high-frequency and high-voltage Y capacitance；Described differential mode LC decoupling electricity
Road includes high frequency differential mode inductance and high pressure X electric capacity；
Described electric current decoupling network device includes the identical decoupling circuit of three-phase structure, and described decoupling circuit includes connecting successively
The one-level common mode high frequency LC decoupling circuit that connects, differential mode LC decoupling circuit, two grades of common mode high frequency LC decoupling circuits；Described one-level is altogether
Mould high frequency LC decoupling circuit includes the first high frequency height Insertion Loss common mode inductance and low-frequency high-voltage Y capacitance；Described differential mode LC decoupling electricity
Road includes high frequency differential mode inductance and high-frequency and high-voltage Y capacitance；Two grades of described common mode high frequency LC decoupling circuits include that the second high frequency is high
Insertion Loss common mode inductance, low-frequency high-voltage Y capacitance and high pressure X electric capacity；
Described signal decoupling network device includes common mode high frequency LC decoupling circuit and differential mode LC decoupling circuit, the institute being sequentially connected with
The common mode high frequency LC decoupling circuit stated includes high frequency height Insertion Loss common mode inductance, high-frequency and high-voltage Y capacitance and high pressure X electric capacity；Described
Differential mode LC decoupling includes high frequency differential mode inductance, high-frequency and high-voltage Y capacitance and high pressure X electric capacity.
2. the aided synthesis decoupling network system of electric energy meter EMS Online Transaction Processing according to claim 1, its feature exists
It is such in described voltage decoupling network device：
Described common mode high frequency LC decoupling circuit is specially：L1_input, L2_input, L3_ of high frequency height Insertion Loss common mode inductance
The voltage that input and N_input pin is respectively connected to EMS test system as the primary electrical pressure side of voltage decoupling network device is defeated
Enter end；L1_output, L2_output, L3_output and N_output pin of high frequency height Insertion Loss common mode inductance is connected to common mode
Intermediate frequency LC decoupling circuit, and be grounded by low-frequency high-voltage Y capacitance respectively；
Described common mode intermediate frequency LC decoupling circuit is specially：L1_input, L2_input, L3_input of intermediate frequency common mode inductance and
N_input pin is respectively connected to L1_output, L2_output, L3_output and N_ of high frequency height Insertion Loss common mode inductance
Output pin, L1_output, L2_output, L3_output and N_output pin of intermediate frequency common mode inductance passes through respectively
High-frequency and high-voltage Y capacitance is grounded and is connected to differential mode LC decoupling circuit；
Described differential mode LC decoupling circuit is specially：One end of first, second, third and fourth high frequency differential mode inductance is respectively connected to
L1_output, L2_output, L3_output and N_output pin of intermediate frequency common mode inductance, the other end decouples as voltage
The secondary electrical pressure side of network equipment is respectively connected to the voltage output end of electric energy meter calibrating apparatus and passes through high-frequency and high-voltage Y capacitance respectively
Ground connection, and connected by a high pressure X electric capacity respectively between any two high frequency differential mode inductance.
3. the aided synthesis decoupling network system of electric energy meter EMS Online Transaction Processing according to claim 1, its feature exists
It is such in described electric current decoupling network device：
Described one-level common mode high frequency LC decoupling circuit is specially：The L1_input pin of the first high frequency height Insertion Loss common mode inductance is made
Primary current output for electric current decoupling network device is connected to the current input terminal of electric energy meter, the first high frequency height Insertion Loss common mode electricity
The L2_input pin of sense is connected to the current output terminal of electric energy meter as the primary current input of electric current decoupling network device；The
The L1_output pin of one high frequency height Insertion Loss common mode inductance and L2_output pin pass through two low-frequency high-voltage Y in parallel respectively
Capacity earth is simultaneously connected to differential mode LC decoupling circuit；
Described differential mode LC decoupling circuit includes the L1_output pin and being connected to the first high frequency height Insertion Loss common mode inductance respectively
Between the L1_input pin of two high frequency differential mode inductance, and the L2_output pin of the first high frequency height Insertion Loss common mode inductance with
The first high frequency differential mode inductance between the L2_input pin of the second high frequency differential mode inductance and the second high frequency differential mode inductance, two high frequencies
Differential mode inductance is grounded by high-frequency and high-voltage Y capacitance respectively；
Two grades of described common mode high frequency LC decoupling circuits are specially：The L1_output pin of the second high frequency height Insertion Loss common mode inductance
Secondary current output as electric current decoupling network device is connected to the current input terminal of electric energy meter calibrating apparatus, and the second high frequency is high
Insertion Loss common mode inductance L2_output pin is connected to electric energy meter calibration dress as the secondary current input of electric current decoupling network device
The current output terminal put；The L1_output pin of the second high frequency height Insertion Loss common mode inductance and L2_output pin pass through two respectively
The low-frequency high-voltage Y capacitance ground connection of individual parallel connection, and it is connected to two high pressure X electric capacity in parallel between the two.
4. the aided synthesis decoupling network system of electric energy meter EMS Online Transaction Processing according to claim 1, its feature exists
It is such in described signal decoupling network device：
Described common mode high frequency LC decoupling circuit is specially：P+_input, GND_input of high frequency height Insertion Loss common mode inductance and
Power_input pin is respectively connected to the signal input part of error module as the primary signal end of signal decoupling network device；
P+_output, GND_output and power_output pin of high frequency height Insertion Loss common mode inductance is connected to differential mode LC decoupling circuit
And be grounded by high-frequency and high-voltage Y capacitance respectively, and between P+_output pin and GND_output pin, and GND_
It is connected by two high pressure X electric capacity in parallel respectively between output pin with power_output pin；
Described differential mode LC decoupling circuit is specially：In parallel first and the 6th high frequency differential mode inductance, in parallel second and the 4th
High frequency differential mode inductance, and one end of the 3rd and the 5th high frequency differential mode inductance of parallel connection is respectively connected to high frequency height Insertion Loss common mode inductance
P+_output, GND_output and power_output pin, the other end is as the secondary signal of signal decoupling network device
End is respectively connected to the error testing end of electric energy meter calibrating apparatus and is grounded by high-frequency and high-voltage Y capacitance respectively, and first and second
Between high frequency differential mode inductance, and between second with the 3rd high frequency differential mode inductance respectively by two high pressure X electric capacity in parallel even
Connect.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109900987A (en) * | 2019-03-13 | 2019-06-18 | 上海市计量测试技术研究院 | A kind of multi-functional decoupling network |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201917622U (en) * | 2011-01-06 | 2011-08-03 | 南京信息工程大学 | Decoupling network device of surge protection device |
| CN202433517U (en) * | 2012-01-30 | 2012-09-12 | 江苏省计量科学研究院 | Portable EMC (electromagnetic compatibility) test-level detecting device for electric energy meter |
| CN105093162A (en) * | 2015-08-07 | 2015-11-25 | 国家电网公司 | Method and device for calibrating measurement error of electric energy meter under pulse train interference condition |
-
2016
- 2016-08-30 CN CN201610765930.5A patent/CN106443554A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201917622U (en) * | 2011-01-06 | 2011-08-03 | 南京信息工程大学 | Decoupling network device of surge protection device |
| CN202433517U (en) * | 2012-01-30 | 2012-09-12 | 江苏省计量科学研究院 | Portable EMC (electromagnetic compatibility) test-level detecting device for electric energy meter |
| CN105093162A (en) * | 2015-08-07 | 2015-11-25 | 国家电网公司 | Method and device for calibrating measurement error of electric energy meter under pulse train interference condition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900987A (en) * | 2019-03-13 | 2019-06-18 | 上海市计量测试技术研究院 | A kind of multi-functional decoupling network |
| CN109900987B (en) * | 2019-03-13 | 2021-08-17 | 上海市计量测试技术研究院 | Multifunctional decoupling network |
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