CN206960561U - Hand-held nuclear phase instrument applied to intelligent substation - Google Patents
Hand-held nuclear phase instrument applied to intelligent substation Download PDFInfo
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- CN206960561U CN206960561U CN201720813114.7U CN201720813114U CN206960561U CN 206960561 U CN206960561 U CN 206960561U CN 201720813114 U CN201720813114 U CN 201720813114U CN 206960561 U CN206960561 U CN 206960561U
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Abstract
Hand-held nuclear phase instrument applied to intelligent substation belongs to intelligent substation engineering protection system nuclear phase technical field, more particularly to a kind of hand-held nuclear phase instrument applied to intelligent substation.The hand-held nuclear phase instrument that the utility model is applied to intelligent substation includes hand-held nuclear phase instrument body, its structural feature is held and is provided with touch display screen, switch interface, light serial ports, luminiferous ether network interface, TF card groove, indicator lamp, analog acquisition mouth and button on nuclear phase instrument body, and arm processor, power management section, FPGA and A/D modular converters are provided with hand-held nuclear phase instrument body；Arm processor is connected with touch display screen, switch interface, TF card groove, indicator lamp, button, power management section, FPGA output ports respectively.
Description
Technical field
The utility model belongs to intelligent substation engineering protection system nuclear phase technical field, more particularly to one kind is applied to intelligence
The hand-held nuclear phase instrument of energy transformer station.
Background technology
Intelligent station because eliminating a large amount of cable connections using a large amount of digitizers, is deposited in the nuclear phase of intelligent station substantially
In following problem：
1st, intelligent substation employs a large amount of optical interface devices (such as combining unit, intelligent terminal, Network Analyzer) and electricity
Sonization equipment (electronic mutual inductor) eliminates a large amount of cable connections, and conventional universal meter or conventional relay protection device can not
Complete nuclear phase work.
2nd, by intelligent station protection device in itself, Network Analyzer, fault oscillograph, measure and control device, monitoring system etc.
Voltage that wall and station level equipment provide, electric current, phase angle comparative analysis because the collection degree of accuracy by device itself is limited to,
The purpose of the phase phase angle verification most directly effectively where checking between electrical separation or different electrical separations can not be realized.
3rd, widely used IE61850 communication protocols, intelligent terminal, combining unit, intelligent protection device etc. in intelligent station
Using Unified Network agreement, and the electric quantitative information such as voltage, electric current, phase angle used in nuclear phase enters row information by networking and passed
Pass, therefore traditional nuclear-phase method and device are different to nuclear phase equipment therefor and method, it is necessary to meet network data exchange, collection
Function.
4th, intelligent substation nuclear phase operating point is more and scattered, and comparing and analysis work are more numerous and jumbled, it is necessary to oneself
Carry, and require that the nuclear phase data of multiple spot distribution need to concentrate comparative analysis, rapidly more accurately to analyze power network system
Wiring error of uniting position.
5th, for that can not be carried out with conventional meanses for the nuclear phase of phase and phase sequence, the collection point of voltage x current amount determine with
And comparison method is highly important.And intelligent substation has a large amount of digitizers and networked devices, to voltage x current
First hand collection brings difficulty, and also the phase to voltage x current, which compares, brings restriction.
To sum up, it is therefore desirable to which develop a handheld digital nuclear phase instrument and nuclear-phase method for intelligent station has very much
It is necessary.
The content of the invention
The utility model is aiming above mentioned problem, there is provided a kind of application that can effectively solve the problems, such as intelligent substation nuclear phase
In the hardware foundation of the hand-held nuclear phase instrument of intelligent substation.
To achieve the above object, the utility model adopts the following technical scheme that, the utility model is applied to intelligent substation
Hand-held nuclear phase instrument include hand-held nuclear phase instrument body, its structural feature holds and is provided with touch display screen on nuclear phase instrument body, opens
Pass amount interface, light serial ports, luminiferous ether network interface, TF card groove, indicator lamp, analog acquisition mouth and button, hold in nuclear phase instrument body
It is provided with arm processor, power management section, FPGA and A/D modular converters；
Arm processor respectively with touch display screen, switch interface, TF card groove, indicator lamp, button, power management section,
FPGA output ports are connected；FPGA the input port output port with A/D modular converters, light serial ports, luminiferous ether network interface respectively
It is connected, the input port of A/D modular converters is connected with analog acquisition mouth；
Hand-held nuclear phase instrument body upper rear end is connected by upper rotary shaft with the first support connecting plate upper end, the first support connecting plate
Lower end is connected by lower rotary shaft with the second support connecting plate, is provided with the middle part of the first support connecting plate and the second support connecting plate logical
Hole.
As a kind of preferred scheme, described in the utility model first supports connecting plate to be supported with second, and connecting plate sides adjacent is corresponding to be set
Neck is equipped with, the both ends of a right angle support card folder are respectively clamped into the neck on the first support connecting plate and the second support connecting plate.
As another preferred scheme, touch display screen described in the utility model is used to carry out visual nuclear phase and sampling
Value Operations；
Power management completes instrument battery charge function, a few hours continuation of the journey operation of the power supply under outdoor low temperature environment；
Analog acquisition mouth is used to gather alternating voltage and electric current during nuclear phase；
Switch interface is used for opening into and outputing for hard contact；
Light serial ports is used for the reception of signal when optical signal reception, transmission or B codes pair, transmission；
Luminiferous ether network interface is 3 pairs, and luminiferous ether network interface 1/2/3 is used for SV and GOOSE transmitting-receiving, and optical port 3 is used for IEEE1588
Pair when, receive IEC61850-9-2 messages and MMS and network message, send IEC61850-9-2 messages and IEEE1588 messages；
TF card groove is used to deposit program and data and report；
Indicator lamp includes Link lamps, ACT lamps, RX lamps, TX lamps, CHR lamps, and luminiferous ether network interface Link lamps often receive by bright indexed optical fiber
It is normal to send out link connection, the flicker instruction of luminiferous ether network interface ACT lamps has data receiver, and often bright instruction has data transmission, light serial ports RX
Lamp often bright instruction has FT3 data receivers, and the often bright instruction of light serial ports TX lamps has the transmission of FT3 data, and the often bright instruction of charging CHR lamps is
Charging, charging complete back light extinguish；
Button be used for check sampled value whether step-out or exist frame losing abnormal sample phenomenon and nuclear phase operation；
FPGA is used to handle data signal.
As another preferred scheme, power management section described in the utility model include SN8P2711B chips U1,
1 pin of LY5056 chips, S8356 chips and FS312F chips U4, U1 respectively with electric capacity C2 one end, DC/DC module output end phases
Even, DC/DC module inputs are connected with power supply, electric capacity C1 one end respectively, the electric capacity C1 other ends, electric capacity C2 other ends ground connection, U1
2 pin pass sequentially through resistance R1, diode D8 ground connection；
U1 3 pin pass sequentially through resistance R2, diode D9 ground connection；
6 pin with LY5056 chips, resistance R3 one end are connected U1 4 pin respectively, another termination powers of resistance R3；
U1 5 pin pass sequentially through resistance R4, diode D10 ground connection；
U1 6 pin pass sequentially through resistance R5, diode D11 ground connection；
U1 7 pin are grounded by switching；
U1 8 pin are connected with resistance R8 one end, electric capacity C4 one end, resistance R9 one end, extraneous power detecting end respectively, resistance
The R8 other ends, electric capacity C4 other ends ground connection, another termination powers of resistance R9；
4 pin of LY5056 chips are connected with electric capacity C5 one end, the first voltage stabilizing tube cathode, diode D7 negative electrodes respectively, two poles
Pipe D7 anodes are connected with Vin power ends, the first voltage stabilizing tube anode, electric capacity C5 other ends ground connection, 7 pin of LY5056 chips respectively with
Resistance R10 one end, 1 pin of LY5056 chips are connected, 2 pin of another termination LY5056 chips of resistance R10, and the 3 of LY5056 chips
Pin is grounded, and 5 pin of LY5056 chips are connected with anode, electric capacity C6 one end, electric capacity C7 one end respectively, the electric capacity C6 other ends,
The electric capacity C7 other ends are grounded；
2 pin of S8356 chips are connected with resistance R11 one end, inductance L one end, anode, electric capacity C8 one end respectively, electricity
Hold C8 other ends ground connection, the resistance R11 other ends 3 pin with S8356 chips, U1 respectively 10 pin；
The inductance L other ends are connected with diode SD anodes, diode D6 negative electrodes, NMOS tube Q3 drain electrodes respectively, NMOS tube Q3
Grid is connected with 5 pin of S8356 chips；NMOS tube Q3 source electrodes respectively with diode D6 anodes, 4 pin of S8356 chips, ground wire phase
Even；Diode SD negative electrodes respectively with electric capacity C9 one end, resistance R12 one end, electric capacity C10 one end, electric capacity C11 one end, the second voltage stabilizing
Tube cathode, resistance R14 one end, NMOS tube Q4 drain electrodes, diode D4 negative electrodes are connected；
The electric capacity C9 other ends 1 pin with S8356 chips, Vout ends, the resistance R12 other ends, resistance R13 one end phase respectively
Even, resistance R13 other ends ground connection；The electric capacity C10 other ends, the electric capacity C11 other ends, the second voltage-stabiliser tube plus earth；Resistance R14 is another
One end is connected with NMOS tube Q4 grids, resistance R17 one end respectively, NMOS tube Q4 source electrodes respectively with diode D4 anodes, VOUT phases
Even；
The resistance R17 other ends are connected with diode D5 negative electrodes, NMOS tube Q5 drain electrodes respectively, and NMOS tube Q5 source electrodes are respectively with two
Pole pipe D5 anodes, electric capacity C12 one end, resistance R16 one end, ground wire are connected, NMOS tube Q5 grids respectively with the electric capacity C12 other ends,
The resistance R16 other ends, resistance R15 one end are connected, another termination U1 of resistance R15 9 pin；
U4 5 pin are connected with resistance R18 one end, electric capacity C13 one end respectively, another termination anodes of resistance R18, electric capacity
6 pin with U4, GND, ground wire, NMOS tube Q1 source electrodes, diode D1 anodes are connected the C13 other ends respectively, NMOS tube Q1 grid
Pole connects U4 DO ports, and diode D1 negative electrodes are connected with diode D2 anodes, NMOS tube Q1 drain electrodes, NMOS tube Q2 drain electrodes respectively,
NMOS tube Q2 grids connect U4 CO ports, diode D2 negative electrodes respectively with NMOS tube Q2 source electrodes, resistance R19 one end, anode
It is connected, another termination U4 of resistance R19 2 pin,；
U1 11 pin are connected with resistance R23 one end, electric capacity C15 one end respectively, and the resistance R23 other ends are divided by electric capacity C17
It is not connected with resistance R22 one end, resistance R24 one end, the resistance R24 other ends, electric capacity C16 one end ground connection；
The electric capacity C15 other ends are connected with the electric capacity C16 other ends, the resistance R22 other ends, amplifier positive input respectively, fortune
Put output end respectively with Vout ends, electric capacity C4 one end, resistance R20 one end to be connected, electric capacity C4 other ends ground connection, resistance R20 is another
End is grounded by resistance R21.
Secondly, smooth serial ports described in the utility model includes FT3 receiving ports RX and FT3 transmission mouth TX.
In addition, the utility model carries out signal acquisition by analog- and digital- amount two paths, analog quantity channel is from mutual
Sensor secondary coil is docked by cable with the A/D modular converters of hand-held nuclear phase instrument, is carried out analog-to-digital conversion, is entered FPG；Numeral
Amount passage be by the digital data acquisition port optical serial ports of the digitlization end of combining unit or intelligent terminal and hand-held nuclear phase instrument,
Luminiferous ether network interface is connected, and digital quantity is passed through into FPGA；After analog quantity or digital quantity are by FPGA Digital Signal Processing, transmission
The phase angle of vector is carried out to arm processor and amplitude nuclear phase compares and record storage；
Phase angle and amplitude nuclear phase compare as follows：Amplitude Rule of judgment is as follows：
Or
Phase angle Rule of judgment is as follows：
Or
It is the A/B/C of t0 moment network system I voltage magnitude；
It is the A/B/C of t0 moment network system II voltage magnitude；
It is the A/B/C of t0 moment network system I current amplitude；
It is the A/B/C of t0 moment network system II current amplitude；
It is the A/B/C of t0 moment network system I voltage phase angle；
It is the A/B/C of t0 moment network system II voltage phase angle；
It is the A/B/C of t0 moment network system I current phase angle；
It is the A/B/C of t0 moment network system II current phase angle.
The nuclear-phase method that the utility model is applied to intelligent substation is included with lower part：
1) the monomer test of combining unit wiring
(1) mode and the side of test unit are determined according to combining unit group cabinet mode, main wiring mode, interval quantity factor
Method, it is divided into the verification of single combining unit nuclear phase and the verification of distributing combining unit nuclear phase that combining unit concentrates group screen (cabinet)；
Combining unit concentrates group screen (cabinet), in view of physical location is tested, electrical wiring blocking factor considers, first to single conjunction
And unit carries out nuclear phase operation, the mode of connection is correct, the source on the basis of the combining unit of correct wiring, carries out verifying other
The mode of connection correctness of combining unit；
By the use of simulate tester or network system voltage as verification a reference source, respectively export two-way respectively as
Combining unit analog input and hand-held nuclear phase instrument simulation input, realize that combining unit and hand-held nuclear phase instrument take homologous input,
The output end of combining unit is connected to the input of hand-held nuclear phase instrument, thus holds nuclear phase instrument by the input of combining unit and defeated
Go out to be compared, check whether wrong or step-out frame losing, its comparative approach are combining unit in cable connection：By hand-held nuclear phase
The output voltage or electric current of the input voltage of instrument either electric current and combining unit do the corresponding phase of voltage or current phasor
And amplitude com parison, if when either difference between current has amplitude or phase difference, it is incorrect to be considered as combining unit wiring for voltage difference；Thus
Single combining unit wiring is identified, prevents combining unit from inputting and exporting anti-phase 180 °；
After the completion of single combining unit wiring effect, other combining units are imitated using this combining unit as standard source
Test；Specific practice：By the combining unit of standard source and tested combining unit using homologous (analog quantity is tested or system access point)
Input, and both are exported and is input to hand-held nuclear phase instrument simultaneously, compare the voltage difference of two combining units and the phase of difference between current
Position and amplitude, there are difference in magnitude or phase difference then to represent that tested combining unit wiring is problematic, it is necessary to be carried out according to correct connection
Wiring；Such as the method, the verification of wiring is carried out to remaining each combining unit；
(2) in view of more scattered according to the physical location distribution of interval distributing group cabinet, it simulates adding for tester
Measure line and fiber cabling is inconvenient, therefore the wiring simultaneously of the multiple hand-held nuclear phase instruments of application, multiple combining units are simultaneously using same
Source is inputted, while combining unit and hand-held nuclear phase instrument are also also used into homologous input, and digital quantity is input into each hand-held core
Xiang Yi, thus simultaneously using multiple hand-held nuclear phase instruments according to analog quantity test or voltage, current phasor and the conjunction of system access point
And voltage, the current phasor of unit output make A B the respective items of C phases compare, if the comparison of object item has difference, such as hand-held core
Phase instrument analog quantity is tested or A the phase voltages voltage or current phasor that either electric current exports with combining unit of system access point have
Difference, then it represents that the combining unit has wiring error phenomenon；
2) the input and output amount of intelligent terminal access is checked
Opening for intelligent terminal is linked into hand-held nuclear phase instrument into signal by light network interface, by point, combined floodgate breaker, isolation
The switching value equipment or opened switching value by cable such as switch are incorporated into hand-held nuclear phase instrument, and then are checked into intelligence eventually
Whether the intake at end is correct, and if any divide-shut brake disunity person, breaker or disconnecting switch are in separating brake, into intelligent terminal
Intake be separating brake, then access switch amount equipment enter intelligent terminal before wiring it is correct, into the intake of intelligent terminal
To close a floodgate, then switching value equipment is adjusted into the wiring before intelligent terminal；Or it is adjusted into normally closed before intelligent terminal
Normally opened node, or exchange and divide, combined floodgate wiring；Hand-held nuclear phase instrument sends division, lock switching value is outputed, and correspondence proving switching value is set
Standby point, "on" position, if the separating brake instruction sent and switching value equipment point, lock state it is inconsistent, adjustment intelligence is whole
Hold the switching value of switching value equipment to output wiring, either exchange access switch amount equipment divide-shut brake coil wiring or
The normally closed normally opened node in the divide-shut brake loop of switching value equipment is adjusted into, makes the opening and closing state of switching value equipment and intelligence whole
The divide-shut brake sent order is held to be consistent；
3) nuclear-phase method of system
On the basis of ensureing that all wiring of each combining unit are correct after the complete combining unit of effect, the power circuit of system is connect
Line and its Substation Electric Equipment installation carry out nuclear phase；According to main wiring mode, nuclear phase precision factor, it is divided into two methods：I.e.
" combining unit digital quantity+combining unit digital quantity " power network nuclear-phase method and " electrical network access point analog quantity+combining unit numeral
Amount " power network nuclear-phase method；
" combining unit digital quantity+merging digital quantity " method：First according to being explained exemplified by double-bus section wiring, how electric other are
The nuclear phase mode of net system wiring mode is also same；The network system of combining unit A outputs is gathered at A with a hand-held nuclear phase instrument
The voltage or current phasor of I digitlization amount, and the voltage or current phasor parameter of combining unit collection are recorded, then with together
One hand-held nuclear phase instrument gathers the voltage or current phasor of the digitlization amount of network system II of combining unit B outputs at B, together
When from the breaker of power circuit and the collection of the intelligent terminal of disconnecting switch close bit switch amount data, it is multiple to prove collection power network system
System I and the collection voltages of network system II or the validity of current phasor, shine function using the vector ratio of hand-held nuclear phase instrument, contrast
Voltage vector magnitude or phase angle difference at A and at B, if there is difference in magnitude or phase angle difference, then illustrate two network systems
Power equipment or power circuit wiring wiring error be present；
" electrical network access point analog quantity+combining unit digital quantity " method：The voltage x current of the analog quantity of network system I is direct
Be linked into hand-held nuclear phase instrument, at the same the voltage of network system II will be gathered, the combining unit output quantity of current phasor is connected to
In same hand-held nuclear phase instrument, compare two network systems A B corresponding C voltage, the difference in magnitude of current phasor, phase angle
Difference, such as exist A B C correspond to the difference in magnitude or phase angle difference of phase, then illustrate that power equipment or power circuit wiring have wiring
Mistake.
The utility model beneficial effect.
The utility model can realize the verification of combining unit wiring list device, the amount verification of access intelligent terminal input and output, more
The power circuit wiring of individual network system and its Substation Electric Equipment installation nuclear phase verification.
Combining unit arrangement, the input and output amount of intelligent terminal under the utility model consideration intelligent substation working condition
The factors such as access, multiple network system power circuit modes of connection and its transformer station's electric equipment mounting means, from raising nuclear phase
Efficiency and the degree of accuracy are set out, and layering is veritified, and the input and output amount progress monomer verification to combining unit, intelligent terminal access is surveyed
Amount, hidden danger caused by remover wiring error, and then the verification for completing multiple network system nuclear phases is designed, and to each power network
The representative analog quantity or digital quantity of system are sampled visual comparative verification.
Hand-held nuclear phase instrument and its nuclear-phase method of the present utility model not only quick and precisely efficiently solve intelligent substation because
The problem of fiber optic network equipment can not realize effective nuclear phase more, but also can impart knowledge to students, train as related practitioner,
Exchange of technology is used, and hand-held is easy to carry, and operation is nimble, and visualization interface is intuitively effective, solves related practitioner in intelligence
Can transformer station can not nuclear phase directly perceived puzzlement.
The utility model first supports connecting plate and the second support connecting plate to play jointly when nuclear phase operates, convenient by hand-held core
Phase instrument body device body is hung up in convergence control cabinet either in the equipment such as protection and automation equipment or by hand-held nuclear phase instrument body device body
Bearing diagonal is finally reached convenient working personnel one man operation on platform device.Rotary shaft realizes the first support connecting plate and second
Support connecting plate is rotated to realize that support frame is packed up, hung up and bearing diagonal.Support clip fixes first using card slot type structure
Support connecting plate and the second support connecting plate.Binding wire plays a part of fixed hand-held nuclear phase instrument body through through hole on connecting plate is supported,
Facilitate operator to operate or play fixed hand-held nuclear phase instrument body through iron using the shaft of live iron etc
Effect.
The utility model holds nuclear phase instrument, and the nuclear phase of check, multiple network systems for combining unit wiring, which is checked, to be adopted
With the visualization of analog quantity and digitized voltage x current vector contrast, or the voltage x current vector of digital quantity and digital quantity
Visualization contrast, the input and output amount of intelligent terminal access check be compare intelligent terminal and hand-held nuclear phase instrument the amount of opening the light open into
Output, with the amount of opening the light opening and closing state.
The utility model nuclear-phase method is checked using two-stage, i.e., the wiring of first order combining unit list device is checked and intelligence is whole
Terminate into input and output amount check auxiliary and check, the nuclear phases of the more network systems in the second level is checked.Ensure that collection is homologous or adopts
Collect real power network characteristic information, and ensure the validity of contrast, this hand-held nuclear phase instrument devise multiple analog acquisition mouths,
Switching value input and output interface, light network interface and light serial ports, and analog quantity or digitlization amount information that above interface is gathered are led to
Cross FPGA according to light serial ports B codes pair when markers or markers realizes synchronous, just ARM processing at IEEE1588 pairs of light network interface
The phase angle and amplitude nuclear phase of device vector compare validity.
The utility model is checked using two-stage, and the first order is the verification basis of the second level, specifies nuclear phase scope.The first order is closed
It is and the input and output amount of the device wiring check of unit list and intelligent terminal access checks auxiliary and checks necessary homology, i.e., verified
Combining unit and hand-held nuclear phase instrument from same simulation tester or system access point, the access of verified intelligent terminal
The intake of intake and hand-held nuclear phase instrument from same switching value equipment, verified intelligent terminal access the amount of outputing come
The switching value sent from same hand-held nuclear phase instrument is outputed.
Combining unit monomer nuclear-phase method be divided into combining unit concentrate group screen (cabinet) single combining unit nuclear phase verification and
Distributing combining unit nuclear phase verifies.
Brief description of the drawings
The utility model is described further with reference to the accompanying drawings and detailed description.Scope of protection of the utility model
It is not only limited to the statement of herein below.
Fig. 1 is hardware block diagram of the present utility model.
Fig. 2 is workflow diagram of the present utility model.
Fig. 3 is the single combining unit nuclear phase verification schematic diagram that combining unit of the present utility model concentrates group screen (cabinet).
Fig. 4 is multiple combining unit nuclear phases verification schematic diagram that combining unit of the present utility model concentrates group screen (cabinet).
Fig. 5 is distributing combining unit nuclear phase verification schematic diagram of the present utility model.
The input and output verification schematic diagram of Fig. 6 intelligent terminals.
Fig. 7 is the schematic diagram of nuclear-phase method one of two network systems of the present utility model.
Fig. 8 is the schematic diagram of nuclear-phase method two of two network systems of the present utility model.
Fig. 9 is that the hand-held nuclear phase instrument back plate support frame of the utility model packs up schematic diagram.
Figure 10 is that the utility model holds nuclear phase instrument back plate support frame hang-up schematic diagram.
Figure 11 is that the utility model holds nuclear phase instrument back plate support frame bearing diagonal schematic diagram.
Figure 12 is that the utility model holds nuclear phase instrument power management hardware block diagram.
Figure 13 is that the utility model holds nuclear phase instrument power control circuit figure.
Figure 14 is that the utility model holds nuclear phase instrument power charging circuit figure.
Figure 15 is that the utility model holds nuclear phase instrument power output circuit figure.
Figure 16 is that the utility model holds nuclear phase instrument battery protecting circuit figure.
Figure 17 is that the utility model holds nuclear phase instrument auxiliary circuit figure.
In Fig. 9-11,1 it is through hole, 2 is lower rotary shaft, 3 is upper rotary shaft, 4 is the first support connecting plate, 5 is the second support
Connecting plate, 6 are that right angle supports clip for hand-held nuclear phase instrument body, 7.
Embodiment
As illustrated, the hand-held nuclear phase instrument that the utility model is applied to intelligent substation includes hand-held nuclear phase instrument body, hand
Hold and touch display screen, switch interface, light serial ports, luminiferous ether network interface, TF card groove, indicator lamp, mould are provided with nuclear phase instrument body
Analog quantity acquisition port and button, hold in nuclear phase instrument body and be provided with arm processor, power management section, FPGA and A/D moduluss of conversion
Block；
Arm processor respectively with touch display screen, switch interface, TF card groove, indicator lamp, button, power management section,
FPGA output ports are connected；FPGA the input port output port with A/D modular converters, light serial ports, luminiferous ether network interface respectively
It is connected, the input port of A/D modular converters is connected with analog acquisition mouth；
Hand-held nuclear phase instrument body upper rear end is connected by upper rotary shaft with the first support connecting plate upper end, the first support connecting plate
Lower end is connected by lower rotary shaft with the second support connecting plate, is provided with the middle part of the first support connecting plate and the second support connecting plate logical
Hole；
The first support connecting plate is correspondingly arranged on neck with the second support connecting plate sides adjacent, a right angle support card press from both sides two
End is respectively clamped into the neck on the first support connecting plate and the second support connecting plate.
The touch display screen can finger flicking screen operated, carry out visual nuclear phase and sampling Value Operations；
Power management completes instrument battery charge function, a few hours continuation of the journey operation of the power supply under outdoor low temperature environment；
Analog acquisition mouth is used to gather alternating voltage and electric current during nuclear phase；
Switch interface is used for opening into and outputing for hard contact；
Light serial ports is used for the reception of signal when the reception of light serial ports, transmission or B codes pair, transmission；
Luminiferous ether network interface is 3 pairs, and luminiferous ether network interface 1/2/3 is used for SV and GOOSE transmitting-receiving, and optical port 3 is used for IEEE1588
Pair when, receive IEC61850-9-2 messages and MMS and network message, send IEC61850-9-2 messages and IEEE1588 messages；
TF card groove is used to deposit program and data and report；
Indicator lamp includes Link lamps, ACT lamps, RX lamps, TX lamps, CHR lamps, and luminiferous ether network interface Link lamps often receive by bright indexed optical fiber
It is normal to send out link connection, the flicker instruction of luminiferous ether network interface ACT lamps has data receiver, and often bright instruction has data transmission, light serial ports RX
Lamp often bright instruction has FT3 data receivers, and the often bright instruction of light serial ports TX lamps has the transmission of FT3 data, and the often bright instruction of charging CHR lamps is
Charging, charging complete back light extinguish；
Button be used for check sampled value whether step-out or exist frame losing abnormal sample phenomenon and nuclear phase operation；
FPGA is used to handle data signal.
The power management section includes SN8P2711B chip U1, LY5056 chip, S8356 chips and FS312F chips
U4, U1 1 pin are connected with electric capacity C2 one end, DC/DC module output ends respectively, DC/DC module inputs respectively with power supply, electric capacity
C1 one end is connected, and the electric capacity C1 other ends, electric capacity C2 other ends ground connection, U1 2 pin pass sequentially through resistance R1, diode D8 ground connection；
U1 3 pin pass sequentially through resistance R2, diode D9 ground connection；
6 pin with LY5056 chips, resistance R3 one end are connected U1 4 pin respectively, another termination powers of resistance R3；
U1 5 pin pass sequentially through resistance R4, diode D10 ground connection；
U1 6 pin pass sequentially through resistance R5, diode D11 ground connection；
U1 7 pin are grounded by switching；
U1 8 pin are connected with resistance R8 one end, electric capacity C4 one end, resistance R9 one end, extraneous power detecting end respectively, resistance
The R8 other ends, electric capacity C4 other ends ground connection, another termination powers of resistance R9；
4 pin of LY5056 chips are connected with electric capacity C5 one end, the first voltage stabilizing tube cathode, diode D7 negative electrodes respectively, two poles
Pipe D7 anodes are connected with Vin power ends, the first voltage stabilizing tube anode, electric capacity C5 other ends ground connection, 7 pin of LY5056 chips respectively with
Resistance R10 one end, 1 pin of LY5056 chips are connected, 2 pin of another termination LY5056 chips of resistance R10, and the 3 of LY5056 chips
Pin is grounded, and 5 pin of LY5056 chips are connected with anode, electric capacity C6 one end, electric capacity C7 one end respectively, the electric capacity C6 other ends,
The electric capacity C7 other ends are grounded；
2 pin of S8356 chips are connected with resistance R11 one end, inductance L one end, anode, electric capacity C8 one end respectively, electricity
Hold C8 other ends ground connection, the resistance R11 other ends 3 pin with S8356 chips, U1 respectively 10 pin；
The inductance L other ends are connected with diode SD anodes, diode D6 negative electrodes, NMOS tube Q3 drain electrodes respectively, NMOS tube Q3
Grid is connected with 5 pin of S8356 chips；NMOS tube Q3 source electrodes respectively with diode D6 anodes, 4 pin of S8356 chips, ground wire phase
Even；Diode SD negative electrodes respectively with electric capacity C9 one end, resistance R12 one end, electric capacity C10 one end, electric capacity C11 one end, the second voltage stabilizing
Tube cathode, resistance R14 one end, NMOS tube Q4 drain electrodes, diode D4 negative electrodes are connected；
The electric capacity C9 other ends 1 pin with S8356 chips, Vout ends, the resistance R12 other ends, resistance R13 one end phase respectively
Even, resistance R13 other ends ground connection；The electric capacity C10 other ends, the electric capacity C11 other ends, the second voltage-stabiliser tube plus earth；Resistance R14 is another
One end is connected with NMOS tube Q4 grids, resistance R17 one end respectively, NMOS tube Q4 source electrodes respectively with diode D4 anodes, VOUT phases
Even；
The resistance R17 other ends are connected with diode D5 negative electrodes, NMOS tube Q5 drain electrodes respectively, and NMOS tube Q5 source electrodes are respectively with two
Pole pipe D5 anodes, electric capacity C12 one end, resistance R16 one end, ground wire are connected, NMOS tube Q5 grids respectively with the electric capacity C12 other ends,
The resistance R16 other ends, resistance R15 one end are connected, another termination U1 of resistance R15 9 pin；
U4 5 pin are connected with resistance R18 one end, electric capacity C13 one end respectively, another termination anodes of resistance R18, electric capacity
6 pin with U4, GND, ground wire, NMOS tube Q1 source electrodes, diode D1 anodes are connected the C13 other ends respectively, NMOS tube Q1 grid
Pole connects U4 DO ports, and diode D1 negative electrodes are connected with diode D2 anodes, NMOS tube Q1 drain electrodes, NMOS tube Q2 drain electrodes respectively,
NMOS tube Q2 grids connect U4 CO ports, diode D2 negative electrodes respectively with NMOS tube Q2 source electrodes, resistance R19 one end, anode
It is connected, another termination U4 of resistance R19 2 pin,；
U1 11 pin are connected with resistance R23 one end, electric capacity C15 one end respectively, and the resistance R23 other ends are divided by electric capacity C17
It is not connected with resistance R22 one end, resistance R24 one end, the resistance R24 other ends, electric capacity C16 one end ground connection；
The electric capacity C15 other ends are connected with the electric capacity C16 other ends, the resistance R22 other ends, amplifier positive input respectively, fortune
Put output end respectively with Vout ends, electric capacity C4 one end, resistance R20 one end to be connected, electric capacity C4 other ends ground connection, resistance R20 is another
End is grounded by resistance R21.
Electric power management circuit
1) power control circuit
Such as Figure 13, P4.0 mouths connection booster circuit output end control signal ON/OFF.Whether control booster circuit is output to
Load.P4.1 connection boost chips S8356 switch control terminal ON/OFFl, control chip are started or stopped to boost
Work.The sampled voltage received is AD converted by P4.2 mouths collection output voltage, and just whether detection output loading voltage
Often.P4.3 and P4.4 mouths gather cell voltage and current signal, and the sampled voltage received is AD converted.Detection output is negative
Whether normal carry voltage.P0.0 mouths first detect whether the external world has input voltage, then control whether charging circuit works.P0.4 mouths
Fully charged signal, when battery is fully charged, LY5056's are indicated as detectionPort exports low level signal, send
Detected to P0.4 mouths, detect low level, control P0.0 mouth output low levels, so that LY5056 is in a dormant state, stop
Charging.Because the single-chip microcomputer uses internal battery powers, the spread of voltage in charge and discharge process, in order to ensure the confession of single-chip microcomputer
Electricity is stable, and voltage stabilizing is carried out using voltage-stablizer.
2) charging circuit
Charge management circuit is as shown in figure 14, CE pins input connection SN8P2711B P0.0 ports, when CE is high level
When, LY5056 realizes the charging of battery, and when CE ends are low level, LY5056 in a dormant state, stops charging.
Pin is output end, and output low level is effective, and whether instruction battery is full of, and is connected to SN8P2711B P0.4 pins.
3) power output circuit
Input voltage is battery power voltage, and transistor D3 is switching tube, and inductance L and electric capacity C5 form filter circuit, SD
For fly-wheel diode.The working condition of D3 pipes by S-8356 EXT Terminal controls, when EXT is high level, D3 saturation conductions,
BAT+ gives inductance L charging energy-storings by D3, and charging current almost linearly increases, and SD ends because bearing back-pressure, C pairs of filter capacitor
Load resistance discharges；When EXT is low level, D3 cut-offs, L produces induced electromotive force, and its direction prevents the change of electric current, because
Equidirectional with BAT+, two voltages are charged after being added by diode SD to C.Therefore, the state regardless of D3 and SD, load
The sense of current is constant all the time.Only when L is sufficiently large, it could boost；And only when C is sufficiently large, the pulsation of output voltage
It is only possible to sufficiently small；When EXT cycle is constant, dutycycle is bigger, and output voltage will be higher.V in circuitoutAdjusted for voltage
End, signal are derived from output negative-feedback mu balanced circuit, and control boost chip reaches the purpose of stable output.Booster circuit is also comprising defeated
Go out control circuit, an ON-OFF control circuit is formed by two switching tubes D4 and D5.The control signal 0N/ of this on-off circuit
P4.0 terminals of the OFF from single-chip microcomputer.When P4.0 is high level, D5 conductings, D4 cut-offs, the output voltage of booster circuit can be with
Load is output to, otherwise output disconnects with load.
4) power protecting circuit
Circuit is as shown in figure 16.In charging process, when the voltage of battery is more than 4.5 volts, application specific integrated circuit
FS312F C0 pin output signals end charge control D2, and battery stops charging immediately, so as to preventing battery because of overcharge
Damage；In discharge process, when cell voltage drops to 2.5 volts .FS312F D0 pin output signals end control of discharge D4,
Battery stops discharging immediately, to prevent battery over-discharge.FS312F CS pins are current detecting end.During output short-circuit, D4,
D5 conduction voltage drop increases severely so that CS pin voltages raise immediately, so as to control FS312F output signals D4, D5 is cut immediately
Only, so as to realizing overcurrent or short-circuit protection.
5) auxiliary circuit
Auxiliary circuit is as shown in figure 17, and wherein sample circuit uses electric resistance partial pressure mode, and amplifier forms in-phase proportion amplification
Circuit, its output signal are connected to S-8356 voltage adjustment control terminal Vout, so as to control power output circuit internal adjustment defeated
Go out voltage, it is stable to reach out-put supply.
The smooth serial ports includes FT3 receiving ports RX and FT3 and sends mouth TX.
The utility model carries out signal acquisition by analog- and digital- amount two paths, and analog quantity channel is from transformer two
Secondary coil is docked by cable with the A/D modular converters of hand-held nuclear phase instrument, is carried out analog-to-digital conversion, is entered FPG；Digital quantity passage
It is digitlization end and digital data acquisition port optical serial ports, the luminiferous ether of hand-held nuclear phase instrument by combining unit or intelligent terminal
Network interface (PHY) is connected, and digital quantity is passed through into FPGA；After analog quantity or digital quantity are by FPGA Digital Signal Processing, transmission
The phase angle of vector is carried out to arm processor and amplitude nuclear phase compares and record storage；
Phase angle and amplitude nuclear phase compare as follows：Amplitude Rule of judgment is as follows：
Or
Phase angle Rule of judgment is as follows：
Or
It is the A/B/C of t0 moment network system I voltage magnitude；
It is the A/B/C of t0 moment network system II voltage magnitude；
It is the A/B/C of t0 moment network system I current amplitude；
It is the A/B/C of t0 moment network system II current amplitude；
It is the A/B/C of t0 moment network system I voltage phase angle；
It is the A/B/C of t0 moment network system II voltage phase angle；
It is the A/B/C of t0 moment network system I current phase angle；
It is the A/B/C of t0 moment network system II current phase angle.
The nuclear-phase method that the utility model is applied to intelligent substation is included with lower part：
1) the monomer test of combining unit wiring
(1) mode and the side of test unit are determined according to combining unit group cabinet mode, main wiring mode, interval quantity factor
Method, it is divided into the verification of single combining unit nuclear phase and the verification of distributing combining unit nuclear phase that combining unit concentrates group screen (cabinet)；
Combining unit concentrates group screen (cabinet), in view of physical location is tested, electrical wiring blocking factor considers, first to single conjunction
And unit carries out nuclear phase operation, such as Fig. 3, the mode of connection is correct, then according to Fig. 2 modes, with the merging list of correct wiring
Source on the basis of member, verify the mode of connection correctness of other combining units；
Such as Fig. 3, by the use of a reference source of tester or network system voltage as verification is simulated, two-way point is exported respectively
Not Zuo Wei combining unit analog input and hand-held nuclear phase instrument simulation input, realize combining unit and hand-held nuclear phase instrument take it is homologous
Input, the output end of combining unit is connected to the input of hand-held nuclear phase instrument, thus holds nuclear phase instrument by the defeated of combining unit
Enter and output is compared, check whether wrong or step-out frame losing, its comparative approach are combining unit in cable connection：By hand
The output voltage or electric current for holding the input voltage of nuclear phase instrument either electric current and combining unit do pair of voltage or current phasor
Phase and amplitude is answered to compare, if voltage difference when either difference between current has amplitude or phase difference, is being considered as combining unit wiring not just
Really；Thus single combining unit wiring is identified, prevents combining unit from inputting and exporting anti-phase 180 °；
Such as Fig. 4, after the completion of single combining unit wiring effect, using side of this combining unit as standard source according to Fig. 4 wiring
Formula, effect is carried out to other combining units；Specific practice：By the combining unit of standard source and tested combining unit using homologous
The input of (analog quantity is tested or system access point), and both are exported and is input to hand-held nuclear phase instrument simultaneously, compare two merging
The voltage difference of unit and the phase and amplitude of difference between current, there are difference in magnitude or phase difference then to represent that tested combining unit wiring is asked
Topic according to correct connection, it is necessary to carry out wiring；Such as the method, the verification of wiring is carried out to remaining each combining unit；
(2) combining unit distributing group cabinet mode, in view of its physical distribution is more scattered, it is impossible to more concentrate effect, examine
Consider line unit, the bus unit mode of connection of intelligent substation, current transformer tap volume number is different, by distributing group cabinet
Combining unit nuclear phase carries out nuclear phase in the way of Fig. 3；
In Figure 5, it is contemplated that more scattered according to the physical location distribution of interval distributing group cabinet, it simulates tester
Dosage line and fiber cabling it is inconvenient, therefore application multiple hand-held nuclear phase instruments simultaneously according to Fig. 5 martingales, multiple merging
Unit uses homologous input simultaneously, while combining unit and hand-held nuclear phase instrument are also also used into homologous input, and digital quantity is defeated
Enter to each hand-held nuclear phase instrument, thus simultaneously using multiple hand-held nuclear phase instruments according to analog quantity test or the electricity of system access point
Voltage, the current phasor of pressure, current phasor and combining unit output make A B the respective items of C phases compare, if the comparison of object item
There is difference, the A phase voltages or electric current and the electricity of combining unit output of such as hand-held nuclear phase instrument analog quantity test or system access point
Pressure or current phasor have difference, then it represents that the combining unit has wiring error phenomenon；
2) the input and output amount of intelligent terminal access is checked
Such as Fig. 6, opening for intelligent terminal is linked into hand-held nuclear phase instrument by light network interface into signal, passes through the open circuit that divides, closes a floodgate
The switching value such as device, disconnecting switch equipment or opened switching value by cable is incorporated into hand-held nuclear phase instrument, so check into
Whether correct enter the intake of intelligent terminal, if any divide-shut brake disunity person, breaker or disconnecting switch enter in separating brake
The intake of intelligent terminal is separating brake, then access switch amount equipment is correct into the wiring before intelligent terminal, into intelligent terminal
Intake to close a floodgate, then be adjusted into switching value equipment into the wiring before intelligent terminal；Or it is adjusted into intelligent terminal
Preceding normally closed normally opened node, or exchange and divide, combined floodgate wiring；Hand-held nuclear phase instrument sends division, lock switching value is outputed, correspondence proving
Switching value equipment point, "on" position, if send separating brake instruction with switching value equipment divide, lock state it is inconsistent, adjust
Whole intelligent terminal outputs wiring to the switching value of switching value equipment, or exchanges the divide-shut brake coil of access switch amount equipment and connect
Line, or the normally closed normally opened node in the divide-shut brake loop of switching value equipment is adjusted into, make the opening and closing state of switching value equipment
The divide-shut brake order sent with intelligent terminal is consistent；
3) nuclear-phase method of system
On the basis of ensureing that all wiring of each combining unit are correct after the complete combining unit of effect, the power circuit of system is connect
Line and its Substation Electric Equipment installation carry out nuclear phase；According to main wiring mode, the factor such as nuclear phase precision, it is divided into two methods：
That is " combining unit digital quantity+combining unit digital quantity " power network nuclear-phase method and " electrical network access point analog quantity+combining unit numeral
Amount " power network nuclear-phase method；
" combining unit digital quantity+merging digital quantity " method：As shown in fig. 7, it is first to illustrate according to double-bus section wiring
Release, the nuclear phase mode of other more network system modes of connection is also same；It is defeated that combining unit A is gathered at A with a hand-held nuclear phase instrument
The voltage or current phasor of the digitlization amount of network system I gone out, and record the voltage or electric current arrow of combining unit collection
Measure parameter, then with same hand-held nuclear phase instrument gathered at B combining unit B export the digitlization amount of network system II voltage or
Person's current phasor, while bit switch amount data are closed from the breaker of power circuit and the collection of the intelligent terminal of disconnecting switch, it is multiple with
Collection network system I and the collection voltages of network system II or the validity of current phasor are proved, utilizes the arrow of hand-held nuclear phase instrument
Amount contrasts function, according to the voltage vector magnitude or phase angle difference at A and at B, if there is difference in magnitude or phase angle difference, then says
Wiring error be present in the power equipment of bright two network systems or power circuit wiring；The double segmentations of double-bus, single point of double-bus
The mode of connection methods of calibration such as section, 3/4ths wiring are in the same manner as above.
" electrical network access point analog quantity+combining unit digital quantity " method, as shown in figure 8, the electricity by the analog quantity of network system I
Current voltage is directly connected in hand-held nuclear phase instrument, while the combining unit of the voltage of collection network system II, current phasor is defeated
Output is connected in same hand-held nuclear phase instrument, compare two network systems A B corresponding C voltage, the width of current phasor
Value difference, phase angle difference, such as exist A B C correspond to the difference in magnitude or phase angle difference of phase, then illustrate that power equipment or power circuit connect
Wiring error be present in line；Mode of connection methods of calibration such as double-bus double segmentation, bus single-subsection, 3/4ths wiring and above
Equally.
It is understood that above with respect to specific descriptions of the present utility model, it is merely to illustrate the utility model and is not
The technical scheme described by the utility model embodiment is limited to, it will be understood by those within the art that, still can be with
The utility model is modified or equivalent substitution, to reach identical technique effect；As long as satisfaction uses needs, all in this reality
Within new protection domain.
Claims (4)
1. applied to the hand-held nuclear phase instrument of intelligent substation, including hand-held nuclear phase instrument body, it is characterised in that hand-held nuclear phase instrument sheet
Touch display screen, switch interface, light serial ports, luminiferous ether network interface, TF card groove, indicator lamp, analog acquisition mouth are provided with body
And button, hold in nuclear phase instrument body and be provided with arm processor, power management section, FPGA and A/D modular converters；
Arm processor respectively with touch display screen, switch interface, TF card groove, indicator lamp, button, power management section, FPGA
Output port is connected；The output port with A/D modular converters, light serial ports, luminiferous ether network interface are connected FPGA input port respectively,
The input port of A/D modular converters is connected with analog acquisition mouth；
Hand-held nuclear phase instrument body upper rear end is connected by upper rotary shaft with the first support connecting plate upper end, the first support connecting plate lower end
It is connected by lower rotary shaft with the second support connecting plate, through hole is provided with the middle part of the first support connecting plate and the second support connecting plate.
2. it is applied to the hand-held nuclear phase instrument of intelligent substation according to claim 1, it is characterised in that first support connects
Plate and the second support connecting plate sides adjacent are correspondingly arranged on neck, and the both ends of a right angle support card folder are respectively clamped into the first support connecting plate
In the neck on the second support connecting plate.
3. it is applied to the hand-held nuclear phase instrument of intelligent substation according to claim 1, it is characterised in that the power management portion
Point include SN8P2711B chip U1, LY5056 chip, S8356 chips and FS312F chips U4, U1 1 pin respectively with electric capacity C2
One end, DC/DC module output ends are connected, and DC/DC module inputs are connected with power supply, electric capacity C1 one end respectively, and electric capacity C1 is another
End, electric capacity C2 other ends ground connection, U1 2 pin pass sequentially through resistance R1, diode D8 ground connection；
U1 3 pin pass sequentially through resistance R2, diode D9 ground connection；
6 pin with LY5056 chips, resistance R3 one end are connected U1 4 pin respectively, another termination powers of resistance R3；
U1 5 pin pass sequentially through resistance R4, diode D10 ground connection；
U1 6 pin pass sequentially through resistance R5, diode D11 ground connection；
U1 7 pin are grounded by switching；
U1 8 pin are connected with resistance R8 one end, electric capacity C4 one end, resistance R9 one end, extraneous power detecting end respectively, and resistance R8 is another
One end, electric capacity C4 other ends ground connection, another termination powers of resistance R9；
4 pin of LY5056 chips are connected with electric capacity C5 one end, the first voltage stabilizing tube cathode, diode D7 negative electrodes respectively, diode D7
Anode is connected with Vin power ends, the first voltage stabilizing tube anode, electric capacity C5 other ends ground connection, 7 pin of LY5056 chips respectively with resistance
R10 one end, 1 pin of LY5056 chips are connected, and 2 pin of another termination LY5056 chips of resistance R10,3 pin of LY5056 chips connect
Ground, 5 pin of LY5056 chips are connected with anode, electric capacity C6 one end, electric capacity C7 one end respectively, the electric capacity C6 other ends, electric capacity
The C7 other ends are grounded；
2 pin of S8356 chips are connected with resistance R11 one end, inductance L one end, anode, electric capacity C8 one end respectively, electric capacity C8
The other end is grounded, the resistance R11 other ends 3 pin with S8356 chips, U1 respectively 10 pin；
The inductance L other ends are connected with diode SD anodes, diode D6 negative electrodes, NMOS tube Q3 drain electrodes respectively, NMOS tube Q3 grids
It is connected with 5 pin of S8356 chips；4 pin, ground wire of the NMOS tube Q3 source electrodes respectively with diode D6 anodes, S8356 chips are connected；
Diode SD negative electrodes are cloudy with electric capacity C9 one end, resistance R12 one end, electric capacity C10 one end, electric capacity C11 one end, the second voltage-stabiliser tube respectively
Pole, resistance R14 one end, NMOS tube Q4 drain electrodes, diode D4 negative electrodes are connected；
1 pin with S8356 chips, Vout ends, the resistance R12 other ends, resistance R13 one end are connected the electric capacity C9 other ends respectively, electricity
Hinder R13 other ends ground connection；The electric capacity C10 other ends, the electric capacity C11 other ends, the second voltage-stabiliser tube plus earth；The resistance R14 other ends
It is connected respectively with NMOS tube Q4 grids, resistance R17 one end, NMOS tube Q4 source electrodes are connected with diode D4 anodes, VOUT respectively；
The resistance R17 other ends respectively with diode D5 negative electrodes, NMOS tube Q5 drain electrode is connected, NMOS tube Q5 source electrodes respectively with diode
D5 anodes, electric capacity C12 one end, resistance R16 one end, ground wire are connected, NMOS tube Q5 grids respectively with the electric capacity C12 other ends, resistance
The R16 other ends, resistance R15 one end are connected, another termination U1 of resistance R15 9 pin；
U4 5 pin are connected with resistance R18 one end, electric capacity C13 one end respectively, another termination anodes of resistance R18, electric capacity C13
6 pin with U4, GND, ground wire, NMOS tube Q1 source electrodes, diode D1 anodes are connected the other end respectively, NMOS tube Q1 grids
U4 DO ports are connect, diode D1 negative electrodes are connected with diode D2 anodes, NMOS tube Q1 drain electrodes, NMOS tube Q2 drain electrodes respectively,
NMOS tube Q2 grids connect U4 CO ports, diode D2 negative electrodes respectively with NMOS tube Q2 source electrodes, resistance R19 one end, anode
It is connected, another termination U4 of resistance R19 2 pin,；
U1 11 pin are connected with resistance R23 one end, electric capacity C15 one end respectively, the resistance R23 other ends by electric capacity C17 respectively with
Resistance R22 one end, resistance R24 one end are connected, the resistance R24 other ends, electric capacity C16 one end ground connection；
The electric capacity C15 other ends are connected with the electric capacity C16 other ends, the resistance R22 other ends, amplifier positive input respectively, and amplifier is defeated
Go out end respectively with Vout ends, electric capacity C4 one end, resistance R20 one end to be connected, electric capacity C4 other ends ground connection, the resistance R20 other ends lead to
Cross resistance R21 ground connection.
4. it is applied to the hand-held nuclear phase instrument of intelligent substation according to claim 1, it is characterised in that the smooth serial ports includes
FT3 receiving ports RX and FT3 send mouth TX.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720813114.7U CN206960561U (en) | 2017-07-06 | 2017-07-06 | Hand-held nuclear phase instrument applied to intelligent substation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247195A (en) * | 2017-07-06 | 2017-10-13 | 国网辽宁省电力有限公司沈阳供电公司 | Hand-held nuclear phase instrument and nuclear-phase method applied to intelligent substation |
| CN111157847A (en) * | 2020-01-07 | 2020-05-15 | 长沙医学院 | Transient recording fault indicator installation phase sequence self-recognition method |
-
2017
- 2017-07-06 CN CN201720813114.7U patent/CN206960561U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247195A (en) * | 2017-07-06 | 2017-10-13 | 国网辽宁省电力有限公司沈阳供电公司 | Hand-held nuclear phase instrument and nuclear-phase method applied to intelligent substation |
| CN107247195B (en) * | 2017-07-06 | 2020-05-19 | 国网辽宁省电力有限公司沈阳供电公司 | Handheld phase checking instrument applied to intelligent substation and phase checking method |
| CN111157847A (en) * | 2020-01-07 | 2020-05-15 | 长沙医学院 | Transient recording fault indicator installation phase sequence self-recognition method |
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