CN206038794U - Multi -functional measurement and control instrument of three -phase - Google Patents
Multi -functional measurement and control instrument of three -phase Download PDFInfo
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- CN206038794U CN206038794U CN201620971335.2U CN201620971335U CN206038794U CN 206038794 U CN206038794 U CN 206038794U CN 201620971335 U CN201620971335 U CN 201620971335U CN 206038794 U CN206038794 U CN 206038794U
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Abstract
The utility model provides a multi -functional measurement and control instrument of three -phase to industrial grade microprocessor is the core, input junction current sampling circuit and voltage sampling circuit, and LCD display, button, control interface, data signal interface and RS485 interface are connected to the output, every looks current sample branch road of current sampling circuit put modulate circuit, anti -aliasing filter circuit, clamper protection circuit including the current transformer CT, precision resister sampling circuit, the fortune that connect gradually, voltage transformer PT is connected to every looks voltage sample branch road of voltage sampling circuit before modulate circuit, anti -aliasing filter circuit, clamper protection circuit or surge suppression circuit are put to the surge suppression circuit, resistive voltage divider network circuit, precision resister sampling circuit, the fortune that connect gradually, the utility model discloses can measure three phase current, voltage, power parameter, have multichannel input/output and upload measured data, the function is many, and the measuring speed is fast, and the reliability is high, and small, specifications is good.
Description
Technical field
This utility model belongs to measure and control instrument technical field, and in particular to the TDMS-PM10 in power system and transformer station
Three-phase multifunctional measure and control instrument.
Background technology
With the development and progress of science and technology, to the Automation of Electric Systems, automation of transformation substations, industry, business, civilian
Power distribution automation, intelligent building and enterprises electric energy measurement are proposed higher requirement, but are traditionally used for industry, business
Industry, civilian power system, transformer station and intelligent building, the simulation instrument observing and controlling single function of enterprises electric energy measurement, intelligence
Low degree, poor reliability, but high cost can be changed, bulky, technical performance falls behind.
The content of the invention
Technical problem to be solved in the utility model is：Above-mentioned background technology is solved the problems, such as, and provides a kind of
Three-phase multifunctional measure and control instrument, can measure three-phase current, voltage, power parameter, with multichannel input and output and upload measurement
Data, function are more, and measuring speed is fast, and reliability is high, and small volume, technical performance are excellent.
The technical solution adopted in the utility model is：A kind of three-phase multifunctional measure and control instrument, with technical grade microprocessor be
Core, the input connection current sampling circuit and voltage sampling circuit of technical grade microprocessor, technical grade microprocessor it is defeated
Go out to connect LCD display, button, control interface, digital signal interface and RS485 interfaces；Described current sampling circuit includes
Three-phase current sampling branch road, three-phase current sampling subcircuits structure are identical, are all that every phase current sampling branch road includes connecting successively
The Current Transmit that connects, precision resister sample circuit, amplifier modulate circuit, Anti-aliasing Filter Circuits, clamping protective circuit；
The voltage sampling circuit includes three-phase voltage sampling branch road, and three-phase voltage sampling branch structure is identical, is all that every phase voltage is adopted
Sample branch road includes that the surge restraint circuit being sequentially connected, resistance pressure-dividing network circuit, precision resister sample circuit, amplifier are nursed one's health
The voltage transformer that circuit, Anti-aliasing Filter Circuits, clamping protective circuit or branch road of sampling per phase voltage include being sequentially connected
PT, surge restraint circuit, resistance pressure-dividing network circuit, precision resister sample circuit, amplifier modulate circuit, anti-aliasing filter electricity
Road, clamping protective circuit.
In above-mentioned technical proposal, described button be 4 road button inputting circuits,
In above-mentioned technical proposal, described digital signal interface includes optical coupling isolation circuit, the Surge suppression being sequentially connected
Circuit and signaling interface；The control interface includes optical coupling isolation circuit, mechanical relay and the execution unit being sequentially connected
Interface.
In above-mentioned technical proposal, optical coupling isolation circuit that described RS485 interfaces include being sequentially connected, 485 circuits, surge
Suppression circuit and 485 interfaces.
Operation principle and advantageous effect：
1st, three-phase multifunctional measure and control instrument of the present utility model is by the electricity in voltage, current sampling circuit measuring loop
Pressure, electric current, then process calculating is carried out by MCU, measure three-phase current, three-phase phase voltage, three-phase line voltage, three-phase wattful power
Rate, three phase reactive power, three-phase apparent energy, three-phase total power factor, frequency, three-phase active energy, three-phase reactive energy；Most
The output of 6 tunnels can be input into 4 tunnels more；Measurement data can be uploaded by 485 communication protocols simultaneously；Perfect sequence of events recording work(
Energy.
2nd, with technical grade microprocessor as core, processing speed is fast, can for three-phase multifunctional measure and control instrument of the present utility model
It is high by property, substantial amounts of conventional simulation instrument can be replaced, independent utility in occasions such as instrument control panel, switch cubicle, ups systems,
Great amount of investment is saved for user and space is used.
3rd, the three-phase alternating current of multifunctional measurement and control instrument Current Transmit secondary side of the present utility model can be direct
Access current terminal, it is adaptable to various stars, triangle power system；For the star system of 400V/690VAC, directly can connect
Enter voltage terminal；If above the star system of 400V/690VAC, voltage terminal can be accessed by voltage transformer pt；Triangle
Shape system must be accessed by voltage transformer pt；On-off signal can be used to the state of monitoring breaker, disconnecting switch
The state of state, relay protection action or other external connectors；Gauge internal has 24V DC sources to provide self-excitation, for passive
Contact monitors；This instrument provides electromagnetic type relay is used for output control, and can communicate remote control, can set pulse return during remote control automatically
The mode of returning.
4th, three-phase multifunctional measure and control instrument of the present utility model, can record 256 events with time tag, such as relay
Device action, arrange parameter change, power down information, and definite value is out-of-limit etc., and temporal resolution reaches 1s.
5th, this utility model Object-Oriented Design, reasonable in design, flexible structure are easy to use, and observing and controlling function is more, calculate speed
Degree is fast, and reliability is high, small volume, is that user is cost-effective and cabinet inner space.
Description of the drawings：
Fig. 1 is this utility model circuit structure schematic diagram.
Specific embodiment：
Referring to Fig. 1, three-phase multifunctional measure and control instrument of the present utility model, with technical grade microprocessor as core, technical grade
The input connection current sampling circuit of microprocessor and voltage sampling circuit, the output connection LCD of technical grade microprocessor show
Show device, button, control interface, digital signal interface and RS485 interfaces；Described current sampling circuit includes that three-phase current is sampled
Branch road, three-phase current sampling subcircuits structure are identical, are all the Current Mutual Inductances that every phase current sampling branch road includes being sequentially connected
Device CT, precision resister sample circuit, amplifier modulate circuit, Anti-aliasing Filter Circuits, clamping protective circuit；The voltage sample
Circuit includes three-phase voltage sampling branch road, and three-phase voltage sampling branch structure is identical, be all every phase voltage sampling branch road include according to
It is the surge restraint circuit of secondary connection, resistance pressure-dividing network circuit, precision resister sample circuit, amplifier modulate circuit, anti-aliasing
Voltage transformer pt, Surge suppression that filter circuit, clamping protective circuit or branch road of sampling per phase voltage include being sequentially connected
Circuit, resistance pressure-dividing network circuit, precision resister sample circuit, amplifier modulate circuit, Anti-aliasing Filter Circuits, clamper protection
Circuit, described button is 4 road button inputting circuits, and described digital signal interface includes the light-coupled isolation electricity being sequentially connected
Road, surge restraint circuit and signaling interface；The control interface includes light-coupled isolation electrical equipment, the mechanical type relay road being sequentially connected
With execution unit interface, optical coupling isolation circuit that described RS485 interfaces include being sequentially connected, 485 circuits, surge restraint circuit
With 485 interfaces.
The implementation method of observing and controlling function of the present utility model is as follows：
1）The three-phase AC sampling module of the three-phase AC sampling measurement function of measurement function to the electric current of three-phase alternating current,
Voltage is monitored；
2) current transformer of input/output function（CT）The three-phase alternating current of secondary side can be directly accessed current terminal
Son；
This utility model TDMS-PM10 three-phase multifunctionals measure and control instrument is applied to various stars, triangle power system.It is right
In the star system of 400V/690VAC, the voltage terminal of device can be directly accessed.If above the star of 400V/690VAC it is
System, can access voltage terminal by voltage transformer pt.Triangular system must be accessed by voltage transformer pt；
On-off signal can be used to the state of monitoring breaker, the state of disconnecting switch, relay protection action or other outside
The state of portion's contact.There are 24V DC sources to provide self-excitation inside device, monitor for passive contact；
3) 485 communication function devices carry RS-485 ports, and baud rate reaches as high as 9600bps；
4）Part journal function can record up to 256 events, and power failure is not lost.Recording events include module power-down feelings
Condition, the actuating of relay, On-off signal displacement, definite value is out-of-limit and user arranges situation etc. of adjusting.Each logout includes thing
Part reason and corresponding parametric values, date and time.Temporal resolution is 1s；
All logouts can be read for host computer by port, if 256 logouts completely will be from first thing
Part starts to cover old record.So in order to read all logouts in time, answering holding meanss and host computer real-time Communication for Power.
Claims (4)
1. a kind of three-phase multifunctional measure and control instrument, it is characterised in that：With technical grade microprocessor as core, technical grade microprocessor
Input connection current sampling circuit and voltage sampling circuit, the output connection LCD display of technical grade microprocessor, press
Key, control interface, digital signal interface and RS485 interfaces；Described current sampling circuit include three-phase current sampling branch road, three
Phase current sampling subcircuits structure is identical, is all Current Transmit, height that every phase current sampling branch road includes being sequentially connected
Accuracy resistance sample circuit, amplifier modulate circuit, Anti-aliasing Filter Circuits, clamping protective circuit；The voltage sampling circuit bag
Three-phase voltage sampling branch road is included, three-phase voltage sampling branch structure is identical, be all that every phase voltage sampling branch road includes being sequentially connected
Surge restraint circuit, resistance pressure-dividing network circuit, precision resister sample circuit, amplifier modulate circuit, anti-aliasing filter electricity
Voltage transformer pt that road, clamping protective circuit or branch road of sampling per phase voltage include being sequentially connected, surge restraint circuit, electricity
Resistance potential-divider network circuit, precision resister sample circuit, amplifier modulate circuit, Anti-aliasing Filter Circuits, clamping protective circuit.
2. three-phase multifunctional measure and control instrument according to claim 1, it is characterised in that：Described button is that 4 road buttons are defeated
Enter circuit.
3. three-phase multifunctional measure and control instrument according to claim 1, it is characterised in that：Described digital signal interface includes
Optical coupling isolation circuit, surge restraint circuit and the signaling interface being sequentially connected；The control interface includes the optocoupler being sequentially connected
Isolation circuit, mechanical relay and execution unit interface.
4. three-phase multifunctional measure and control instrument according to claim 1, it is characterised in that：Described RS485 interfaces include according to
The optical coupling isolation circuit of secondary connection, 485 circuits, surge restraint circuit and 485 interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620971335.2U CN206038794U (en) | 2016-08-30 | 2016-08-30 | Multi -functional measurement and control instrument of three -phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620971335.2U CN206038794U (en) | 2016-08-30 | 2016-08-30 | Multi -functional measurement and control instrument of three -phase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206038794U true CN206038794U (en) | 2017-03-22 |
Family
ID=58302743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620971335.2U Active CN206038794U (en) | 2016-08-30 | 2016-08-30 | Multi -functional measurement and control instrument of three -phase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206038794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918995A (en) * | 2018-06-12 | 2018-11-30 | 六盘水金星机电设备有限公司 | A kind of portable three-phase power load monitor |
| CN114326687A (en) * | 2022-01-07 | 2022-04-12 | 摩登汽车有限公司 | Power domain controller of new energy vehicle and vehicle |
-
2016
- 2016-08-30 CN CN201620971335.2U patent/CN206038794U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918995A (en) * | 2018-06-12 | 2018-11-30 | 六盘水金星机电设备有限公司 | A kind of portable three-phase power load monitor |
| CN114326687A (en) * | 2022-01-07 | 2022-04-12 | 摩登汽车有限公司 | Power domain controller of new energy vehicle and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210518 Address after: 421133 block tbdg, Songjiang town, Yunji Town, Hengnan County, Hengyang City, Hunan Province Patentee after: TBEA Yunji Electric Co.,Ltd. Address before: Hunan province Hengyang City Baishazhou 421007 Yanfeng District Patentee before: TBEA HUNAN INTELLIGENCE ELECTRIC Co.,Ltd. |