CN107516875B - A kind of high voltage power distribution and equipment operation integrated synthesis Protection control system and method - Google Patents
A kind of high voltage power distribution and equipment operation integrated synthesis Protection control system and method Download PDFInfo
- Publication number
- CN107516875B CN107516875B CN201710811357.1A CN201710811357A CN107516875B CN 107516875 B CN107516875 B CN 107516875B CN 201710811357 A CN201710811357 A CN 201710811357A CN 107516875 B CN107516875 B CN 107516875B
- Authority
- CN
- China
- Prior art keywords
- chip
- module
- port
- bus
- power distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/222—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for switches
Abstract
The present invention provides a kind of high voltage power distribution and equipment operation integrated synthesis Protection control system and method, including integrated protection controller, host computer, voltage acquisition unit, current acquisition unit.The integrated protection controller connects host computer by communication modes; voltage acquisition unit, current acquisition unit are connected by the port AI; the switching on and off signal port that high-voltage circuitbreaker is connected by the port DO, the valve control signal end at the driving device signal end and blower or pump discharge of low pressure blower or water pump is connected by the port DO with AO.It uses using high-speed dsp chip as the controller of control core; and equipped with can infinite expanding I/O module; acquire bus three-phase voltage and current signal; the control of high and low pressure equipment linkage and protection are carried out while carrying out high voltage power distribution integrated protection; when distribution bus end finds failure; the current supply circuit of cutoff high power supply and low pressure key equipment or backup power source is switched to simultaneously, equipment is quickly protected.
Description
Technical field
The present invention relates to high voltage power distribution protection technique field, in particular to a kind of high voltage power distribution and equipment operation integration are comprehensive
Close Protection control system and method.
Background technique
It is power load electrical equipment voltage class high pressure, low in the high-pressure systems such as existing small and medium-sized pumping station, Ventilator Room
It presses and deposits, PLC is respectively adopted in traditional method and comprehensive automation protection system realizes Centralized Monitoring.The drive control of electrical equipment
It is monitored by PLC, high-tension apparatus presses the system knot of layered distribution type object-oriented using Synthetic Automation System of Transformer Substation
Structure design, due to the separated independent control of high and low pressure equipment and protection, so that each equipment room can not achieve chain control and guarantor
Shield, and comprehensive insurance system is when handling on high-tension side failure, can not the power supply in time to relevant low-voltage equipment protect.
In the prior art, comprehensive automation protective device is mostly the standard approved product of producer's purchase, is equipped with backstage and supervises
Control system, is only able to achieve on high-tension side power distribution protection, user not can be carried out exploitation programming again, also can infinite expanding
I/O port can not achieve the linkage with other equipment.
Also have in the prior art and the comprehensive technology for protecting function is realized using PLC, but a little basic defencive functions can only be done, also
It is unstable；There is dsp chip inside comprehensive guarantor, and PLC does not have, anti-bouncing function, directional element, failure logging and the recording of comprehensive guarantor are deposited
The functions such as storage, display can be achieved on but be but not achieved in speed the standard of comprehensive guarantor, for example quick-break is 0 second grade, and relay protection
Major function be required of speed, using PLC failure can be amplified to upper level switch.
Moreover, PLC is standardized product, although programmable products, it is secondary development programming in fact that it, which is programmed, can not
Directly chip is programmed, inter-protocol is the communications protocol of standard, cannot be led to nonstandard communication apparatus
News.
Summary of the invention
In order to solve the problems, such as described in background technique, the present invention provides a kind of high voltage power distribution and equipment operation integrated synthesis
Protection control system and method are used using high-speed dsp chip as the controller of control core, and equipped with can infinite expanding IO mould
Block acquires bus three-phase voltage and current signal, and high and low pressure equipment linkage is carried out while carrying out high voltage power distribution integrated protection
Control and protection, when distribution bus end finds failure, while the power supply of cutoff high power supply and low pressure key equipment is returned
Road switches to backup power source, is quickly protected to equipment.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of high voltage power distribution and equipment run integrated synthesis Protection control system, including integrated protection controller, upper
Mechanical, electrical pressure acquisition unit, current acquisition unit.
The integrated protection controller connects host computer by communication modes, connects voltage acquisition list by the port AI
Member, current acquisition unit are connected the switching on and off signal port of high-voltage circuitbreaker by the port DO, are connected by the port DO with AO
The valve control signal end of the driving device signal end and blower or pump outlet of low pressure blower or water pump；The high pressure
Breaker connects the power supply side of high pressure blower or water pump.
The integrated protection controller is used using high-speed dsp chip as the controller of control core, acquires high voltage bus
Three-phase voltage and current signal carry out the control of high and low pressure equipment linkage and protection while carrying out high voltage power distribution integrated protection.
The integrated protection controller includes CPU module, AI module, AO module and DI module and DO module, described
CPU module, AI module, AO module and DI module and DO module are interconnected by bus mode；The CPU module includes master
Control dsp chip, CPLD chip, fpga chip, Bus Interface Chip, ROM and RAM, master control dsp chip, CPLD chip and FPGA
Chip port interconnects, and carries out high-speed computation and control.
The integrated protection controller also passes through switching on and off status signal, the handcart of the port DI connection high-voltage circuitbreaker
Position signal, external alarm signal and high-tension apparatus run manual operation button.
The integrated synthesis of a kind of high voltage power distribution and equipment operation integrated synthesis Protection control system protects control method,
Including following linkage guard method:
(1) when high voltage power distribution bus end finds failure, when emergency stop valve trip such as occurs, cutoff high power supply or switching
To backup power source；Cutoff low key equipment such as belongs to the confession of the important water pump, blower of level-one supply load simultaneously
Electricity returns
Road simultaneously switches to backup power source in time；
(2) on startup, i.e. high-voltage circuitbreaker is before combined floodgate, first by high-pressure hydraulic pump or fan outlet for high pressure water pump or fan
Valve open, then carry out starting control；
(3) it when the valve of system detection to high-pressure hydraulic pump or fan outlet breaks down the case where closing, disconnects immediately high
The power supply of water pump or blower.
Compared with prior art, the beneficial effects of the present invention are:
1, a kind of high voltage power distribution of the invention and equipment operation integrated synthesis Protection control system and method, use with height
Fast dsp chip be control core controller, and equipped with can infinite expanding I/O module, acquire bus three-phase voltage and electric current letter
Number, the control of high and low pressure equipment linkage and protection are carried out while carrying out high voltage power distribution integrated protection, when distribution bus end is found
When failure, while the current supply circuit of cutoff high power supply and low pressure key equipment or switching to backup power source, to equipment into
Row quickly protection.
2, a kind of high voltage power distribution of the invention and equipment run integrated synthesis Protection control system, faster than PLC speed, symbol
The quick requirement of comprehensive insurance system is closed, while quickly linkage and protection act also play faster protection to high and low pressure equipment
Holding function plays better protective effect to equipment.
3, a kind of high voltage power distribution of the invention and equipment run integrated synthesis Protection control system, have programmability and can
The I/O module of infinite expanding, good compatibility, inter-protocol can be configured voluntarily, can be carried out with the equipment of any communications protocol
High speed communication connection.
Detailed description of the invention
Fig. 1 is that a kind of high voltage power distribution of the invention and equipment run integrated synthesis Protection control system structural block diagram；
Fig. 2 is the integrated protection control that a kind of high voltage power distribution of the invention and equipment run integrated synthesis Protection control system
Device structural block diagram processed；
Fig. 3 is the integrated protection control that a kind of high voltage power distribution of the invention and equipment run integrated synthesis Protection control system
The CPU module circuit structure diagram of device processed；
Fig. 4 is the integrated protection control that a kind of high voltage power distribution of the invention and equipment run integrated synthesis Protection control system
The AI modular circuit structure chart of device processed；
Fig. 5 is the integrated protection control that a kind of high voltage power distribution of the invention and equipment run integrated synthesis Protection control system
The AO modular circuit structure chart of device processed；
Fig. 6 is the integrated protection control that a kind of high voltage power distribution of the invention and equipment run integrated synthesis Protection control system
The DI modular circuit structure chart of device processed；
Fig. 7 is the integrated protection control that a kind of high voltage power distribution of the invention and equipment run integrated synthesis Protection control system
The DO modular circuit structure chart of device processed；
Fig. 8-11 is that a kind of high voltage power distribution of the invention and equipment run the comprehensive of integrated synthesis Protection control system and protects
Protect the high-voltage circuitbreaker signal input and output implementation example figure of controller.
Specific embodiment
Specific embodiment provided by the invention is described in detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of high voltage power distribution and equipment run integrated synthesis Protection control system, including integrated protection control
Device processed, host computer, voltage acquisition unit, current acquisition unit.
The integrated protection controller connects host computer by communication modes, connects voltage acquisition list by the port AI
Member, current acquisition unit are connected the switching on and off signal port of high-voltage circuitbreaker by the port DO, are connected by the port DO with AO
The valve control signal end of the driving device signal end and blower or pump outlet of low pressure blower or water pump；The high pressure
Breaker connects the power supply side of high pressure blower or water pump；
The integrated protection controller is used using high-speed dsp chip as the controller of control core, acquires high voltage bus
Three-phase voltage and current signal carry out the control of high and low pressure equipment linkage and protection while carrying out high voltage power distribution integrated protection,
When distribution bus end finds failure, while the current supply circuit of cutoff high power supply and low pressure key equipment and switching to standby
With power supply, equipment is quickly protected.
The integrated protection controller also passes through switching on and off status signal, the handcart of the port DI connection high-voltage circuitbreaker
Position signal, external alarm signal and high-tension apparatus run manual operation button.
The driving device of the low pressure blower or water pump can be contactor or frequency converter.
There can also be high-voltage frequency converter among the power supply side of the high-voltage circuitbreaker and high pressure blower or water pump, this
When high-voltage frequency converter and integrated protection controller need to be done communication connection, to carry out data interaction.
As shown in Fig. 2, the integrated protection controller includes CPU module, AI module, AO module and DI module and DO mould
Block, the CPU module, AI module, AO module and DI module and DO module are interconnected by bus mode.
As shown in figure 3, the CPU module includes master control dsp chip, CPLD chip, fpga chip, bus interface core
Piece, ROM and RAM, master control dsp chip, CPLD chip and fpga chip port interconnect, and carry out high-speed computation and control.Together
When master control dsp chip, CPLD chip also pass through bus transceiving chip connection core bus, pass through core bus and AI module, AO
Module and DI module and DO module carry out data interaction, and master control dsp chip is connected with ROM, and master control dsp chip and fpga chip are equal
It is connected with RAM.
CPLD chip is also respectively connected with Ethernet chip, 485/232 driving chip, Ethernet chip connection with
Too network interface, 485/232 driving chip connect multiple 485/232 communication interfaces.
Dsp chip is also connected with CAN interface chip, connects CAN interface by CAN interface chip.
As shown in figure 4, the AI module of the integrated protection controller include dsp chip, CPLD chip, fpga chip,
Bus Interface Chip, ADC chip, DAC chip, ROM and RAM, dsp chip, CPLD chip and fpga chip port interconnect,
High-speed computation is carried out, while dsp chip, CPLD chip also connect core bus by Bus Interface Chip, pass through core bus
Data interaction is carried out with CPU module, CPLD chip is connected with ADC chip, connects the port AI by ADC chip.
As shown in figure 5, the AO module of the integrated protection controller include dsp chip, CPLD chip, fpga chip,
Bus Interface Chip, ADC chip, DAC chip, ROM and RAM, dsp chip, CPLD chip and fpga chip port interconnect,
High-speed computation is carried out, while dsp chip, CPLD chip also connect core bus by Bus Interface Chip, pass through core bus
Data interaction is carried out with CPU module, CPLD chip is connected with DAC chip, connects the port AO by DAC chip.
As shown in fig. 6, the DI module of the integrated protection controller includes fpga chip, photoelectric isolated chip, FPGA
Chip connects photoelectric isolated chip, and photoelectric isolated chip connects 32 ports DI, while fpga chip is also connected with core bus
It connects, data interaction is carried out by core bus and CPU module.
As shown in fig. 7, the DO module of the integrated protection controller includes fpga chip, photoelectric isolated chip, output
Driving chip, fpga chip connect photoelectric isolated chip, and photoelectric isolated chip connects output driving chip, and output driving chip connects
32 ports DO are connect, while fpga chip is also connected with core bus, data friendship is carried out by core bus and CPU module
Mutually.
The preferred industrial personal computer of the host computer, can also use PC machine.
As illustrated in figs. 8-11, integrated synthesis Protection control system is run for a kind of high voltage power distribution of the invention and equipment
The high-voltage circuitbreaker signal input/output signal implementation example figure of integrated protection controller.
Since integrated protection controller of the invention is used using high-speed dsp chip as the controller of control core, compare PLC
Controller data processing is quick, also, present invention employs unified controllers directly to carry out data acquisition and control, with low pressure
Communication connection process is not needed among equipment, therefore, equipment linkage process action is fast, and low pressure key equipment can also be quick yet
Receive on high-tension side fault message, quick execution protection act.The following are the specific embodiments of equipment linkage and protection:
Specific embodiment one, when high voltage power distribution bus end find failure when, such as occur emergency stop valve trip when,
1, cutoff high power supply or backup power source is switched to；
2, simultaneously cutoff low key equipment (the important water pump, the blower that such as belong to level-one supply load) current supply circuit
And backup power source is switched in time.
On startup, i.e. high-voltage circuitbreaker is before combined floodgate, first by high-pressure hydraulic pump for specific embodiment two, high pressure water pump or fan
Or the valve of fan outlet is opened, then carries out starting control.
Specific embodiment three, when the valve of system detection to high-pressure hydraulic pump or fan outlet break down close the case where,
The power supply of high pressure water pump or fan is disconnected immediately.
Above embodiments are implemented under the premise of the technical scheme of the present invention, give detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to the above embodiments.Method therefor is such as without spy in above-described embodiment
Not mentionleting alone bright is conventional method.
Claims (3)
1. a kind of high voltage power distribution and equipment run integrated synthesis Protection control system, which is characterized in that including integrated protection control
Device processed, host computer, voltage acquisition unit, current acquisition unit；
The integrated protection controller connects host computer by communication modes, connects voltage acquisition unit, electricity by the port AI
Acquisition unit is flowed, the switching on and off signal port of high-voltage circuitbreaker is connected by the port DO, low-pressure air is connected by the port DO with AO
The valve control signal end of the driving device signal end and blower or pump outlet of machine or water pump；The high-voltage circuitbreaker
Connect the power supply side of high pressure blower or water pump；
The integrated protection controller is used using high-speed dsp chip as the controller of control core, acquires high voltage bus three-phase
Voltage and current signal carries out the control of high and low pressure equipment linkage and protection while carrying out high voltage power distribution integrated protection；
The integrated protection controller includes CPU module, AI module, AO module and DI module and DO module, the CPU mould
Block, AI module, AO module and DI module and DO module are interconnected by bus mode；
The CPU module includes master control dsp chip, CPLD chip, fpga chip, Bus Interface Chip, ROM and RAM, master control
Dsp chip, CPLD chip and fpga chip port interconnect, and carry out high-speed computation and control；
The AI module include dsp chip, CPLD chip, fpga chip, Bus Interface Chip, ADC chip, DAC chip,
ROM and RAM, dsp chip, CPLD chip and fpga chip port interconnect, and carry out high-speed computation, while dsp chip, CPLD
Chip also connects core bus by Bus Interface Chip, carries out data interaction, CPLD chip by core bus and CPU module
It is connected with ADC chip, the port AI is connected by ADC chip；
The AO module include dsp chip, CPLD chip, fpga chip, Bus Interface Chip, ADC chip, DAC chip,
ROM and RAM, dsp chip, CPLD chip and fpga chip port interconnect, and carry out high-speed computation, while dsp chip, CPLD
Chip also connects core bus by Bus Interface Chip, carries out data interaction, CPLD chip by core bus and CPU module
It is connected with DAC chip, the port AO is connected by DAC chip；
The DI module includes fpga chip, photoelectric isolated chip, and fpga chip connects photoelectric isolated chip, Phototube Coupling core
Piece connects 32 ports DI, while fpga chip is also connected with core bus, carries out data by core bus and CPU module
Interaction；
The DO module includes fpga chip, photoelectric isolated chip, output driving chip, and fpga chip connects Phototube Coupling core
Piece, photoelectric isolated chip connect output driving chip, output driving chip connect 32 ports DO, while fpga chip also with back
Plate bus is connected, and carries out data interaction by core bus and CPU module.
2. a kind of high voltage power distribution according to claim 1 and equipment run integrated synthesis Protection control system, feature
It is, the integrated protection controller also passes through switching on and off status signal, the handcart position of the port DI connection high-voltage circuitbreaker
Signal, external alarm signal and high-tension apparatus run manual operation button.
3. the integrated synthesis of a kind of high voltage power distribution described in claim 1 and equipment operation integrated synthesis Protection control system
Protect control method, which is characterized in that including following linkage guard method:
(1) it when high voltage power distribution bus end finds failure, when emergency stop valve trip such as occurs, cutoff high power supply or switches to standby
Use power supply；Cutoff low key equipment such as belongs to the important water pump of level-one supply load, the current supply circuit of blower and timely simultaneously
Switch to backup power source；
(2) on startup, i.e. high-voltage circuitbreaker is before combined floodgate, first by high-pressure hydraulic pump or the valve of fan outlet for high pressure water pump or fan
Door is opened, then carries out starting control；
(3) when the valve of system detection to high-pressure hydraulic pump or fan outlet break down close the case where, disconnect high pressure water immediately
The power supply of pump or fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811357.1A CN107516875B (en) | 2017-09-11 | 2017-09-11 | A kind of high voltage power distribution and equipment operation integrated synthesis Protection control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811357.1A CN107516875B (en) | 2017-09-11 | 2017-09-11 | A kind of high voltage power distribution and equipment operation integrated synthesis Protection control system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107516875A CN107516875A (en) | 2017-12-26 |
| CN107516875B true CN107516875B (en) | 2019-06-18 |
Family
ID=60723967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710811357.1A Active CN107516875B (en) | 2017-09-11 | 2017-09-11 | A kind of high voltage power distribution and equipment operation integrated synthesis Protection control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107516875B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112947215B (en) * | 2021-03-02 | 2022-10-04 | 浙江禾川科技股份有限公司 | Data acquisition feedback system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202550476U (en) * | 2012-04-28 | 2012-11-21 | 山西科泰电气有限公司 | Comprehensive protective device of coal mine power center |
| CN202550500U (en) * | 2012-04-28 | 2012-11-21 | 山西科泰电气有限公司 | Coal mine power center high-voltage and low-voltage integrated control device |
| CN203086108U (en) * | 2012-12-28 | 2013-07-24 | 吴士涛 | Novel high-voltage-side protection box for mining explosion-proof mobile substation |
| CN206023008U (en) * | 2016-08-31 | 2017-03-15 | 北京和利时智能技术有限公司 | A kind of high-low pressure integratedization Flameproof intrinsically safe mine movable transformer station |
| CN206135394U (en) * | 2016-08-31 | 2017-04-26 | 北京和利时智能技术有限公司 | Mining high -low pressure integration phase shifting transformer switch versatile protector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2608345A1 (en) * | 2011-12-23 | 2013-06-26 | ABB Technology AG | Low-, medium-, or high-voltage switchgear |
-
2017
- 2017-09-11 CN CN201710811357.1A patent/CN107516875B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202550476U (en) * | 2012-04-28 | 2012-11-21 | 山西科泰电气有限公司 | Comprehensive protective device of coal mine power center |
| CN202550500U (en) * | 2012-04-28 | 2012-11-21 | 山西科泰电气有限公司 | Coal mine power center high-voltage and low-voltage integrated control device |
| CN203086108U (en) * | 2012-12-28 | 2013-07-24 | 吴士涛 | Novel high-voltage-side protection box for mining explosion-proof mobile substation |
| CN206023008U (en) * | 2016-08-31 | 2017-03-15 | 北京和利时智能技术有限公司 | A kind of high-low pressure integratedization Flameproof intrinsically safe mine movable transformer station |
| CN206135394U (en) * | 2016-08-31 | 2017-04-26 | 北京和利时智能技术有限公司 | Mining high -low pressure integration phase shifting transformer switch versatile protector |
Non-Patent Citations (1)
| Title |
|---|
| "基于多CPU控制高压防爆开关综合保护系统的研究";刘忠富等;《工矿自动化》;20081231(第6期);第1-5页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107516875A (en) | 2017-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102664465B (en) | Breaker controller with dual-power-source switching function, switching system and switching method | |
| CN206698015U (en) | Power distribution station institute automatic control terminal | |
| CN108092248A (en) | A kind of intelligent distributed feeder line fault of distribution network quickly cuts off shielding system and its method | |
| CN109319234A (en) | A kind of urgent protective switch tripping fault diagnostic system of packing machine | |
| CN110988524B (en) | Automatic function test device of full-automatic recloser formula feeder | |
| CN107516875B (en) | A kind of high voltage power distribution and equipment operation integrated synthesis Protection control system and method | |
| CN1567816A (en) | A remote power feeding equipment having remote control function | |
| CN204425041U (en) | Distribution terminal system | |
| CN108933431A (en) | Starting protection circuit and starting protection system for nuclear power station turning motor | |
| CN210780231U (en) | Intelligent distributed comprehensive test platform | |
| CN202696279U (en) | Circuit breaker controller with dual-power changeover function and dual-power switching system | |
| CN106602522A (en) | Voltage transformer parallel apparatus and automatic parallel control logic thereof | |
| CN201392370Y (en) | Mimic-disconnecting switch used for protecting tester | |
| CN207518284U (en) | A kind of accident disconnection device of small power incorporating into power network | |
| CN206878551U (en) | AC power PLC switching devices free of discontinuities | |
| CN207689955U (en) | A kind of DC control protective device for realizing switching value circuit on-bne repair | |
| CN204334122U (en) | Multifunction station territory protection measurement and control integration device | |
| CN208420975U (en) | Dual power supply switching equipment testing auxiliary device | |
| CN209641614U (en) | Composite switch | |
| CN103840551A (en) | Intelligent circuit breaker controller | |
| CN207459834U (en) | A kind of Power Monitored Control System For Underground Mine | |
| CN208142576U (en) | Switchgear Intelligent integrated instrument system | |
| CN207053251U (en) | A kind of grid entry point supervising device of family expenses photovoltaic generating system | |
| CN206790104U (en) | The automatic switching device of 10 kilovolts of inlet-outlet lines | |
| CN201393043Y (en) | Switching value input/output interface circuits for relay protective device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |