CN106160231A - A kind of power equipment remote monitoring system - Google Patents
A kind of power equipment remote monitoring system Download PDFInfo
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- CN106160231A CN106160231A CN201610677470.0A CN201610677470A CN106160231A CN 106160231 A CN106160231 A CN 106160231A CN 201610677470 A CN201610677470 A CN 201610677470A CN 106160231 A CN106160231 A CN 106160231A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 238000012806 monitoring device Methods 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims description 27
- 230000001012 protector Effects 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 claims 2
- 244000068988 Glycine max Species 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H02J13/0003—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/047—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using a temperature responsive switch
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention proposes a kind of power equipment remote monitoring system, including power equipment, described power equipment on-line temperature monitoring device and power distribution protective device, described on-line temperature monitoring device and Intelligent switch cabinet control device connection central controller, described on-line temperature monitoring device monitors the temperature data of power equipment in real time, and described temperature data is sent to central controller, when described temperature data is beyond pre-set threshold value, central controller controls power distribution protective device cuts off the power supply of power equipment, the present invention can be effectively realized power distribution protection and on-line temperature monitoring, the balance movement of protection power equipment, avoid potential safety hazard.
Description
Technical field
The invention belongs to technical field of electric power, particularly to a kind of power equipment remote monitoring system.
Background technology
At present, along with economic fast development, low pressure (exchange is less than 1500V less than 1000V or direct current) power distribution system
Uniting in occupation of leading position, it is being finally connected between power system with end user, is to contact the most closely with user, use
The link that equipment is at most, circuit is the longest, power consumption is maximum, be unable to do without low in factory, mine, city, rural area etc. everywhere
Pressure distribution system, so, reasonable, the safe efficient and stable operation of low-voltage distribution system, direct relation the use of users
Electricity reliability and power quality, thus low-voltage distribution system distribution line, control equipment etc. are carried out protection and is significant.
Breaker of plastic casing, fuse or RCCB are selected in low-voltage distribution protection at present more, it is achieved quick-break, long delay protection, but very
Many breaker of plastic casing operation precision is inadequate, and do not possess real time monitoring signals show, the function such as logout and communication networking；And
The thermorelay used is as motor overload protection and controls element, is limited by element quality, technique, cannot meet day
Exhibition automation technolo requirement increasingly；Additionally, during power equipment uses, aging along with power equipment, electric power can be caused
Equipment can cause huge security incident because temperature is too high, there is great potential safety hazard, and the peace of society in serious threat
Complete and development.
Therefore, a kind of power equipment remote monitoring system is needed now badly, it is possible to be effectively realized power distribution protection and online temperature
Degree monitoring, the balance movement of protection power equipment, it is to avoid potential safety hazard.
Summary of the invention
The present invention proposes a kind of power equipment remote monitoring system, solves in prior art in power equipment running
There is the too high phenomenon of temperature and because the problem of existence potential safety hazard that causes of short circuit current.
The technical scheme is that and be achieved in that: power equipment remote monitoring system, including power equipment, described electricity
Power equipment on-line device for detecting temperature and power distribution protective device, described on-line temperature monitoring device and Intelligent switch cabinet control device
Connecting has centralised temperature controller, described on-line temperature monitoring device to monitor the temperature data of power equipment in real time, and by described
Temperature data is sent to centralised temperature controller, and when described temperature data is beyond pre-set threshold value, centralised temperature controller controls
Power distribution protective device cuts off the power supply of power equipment.
As one preferred embodiment, described power distribution protective device, including distribution controller, described distribution controller
Connect have short-circuit protector, described distribution controller according to the prospective short circuit current of the parameter determination power supply unit of power equipment,
Described short-circuit protector monitors the operation short circuit current of power equipment in real time, when the operation short circuit current of monitoring reaches expection short circuit
Electric current, and when short circuit duration exceeds the first pre-set threshold value, shown by display, and described short-circuit protector cuts off electric power
The power supply of equipment.
As one preferred embodiment, short-circuit protector includes automatic circuit and sectionaliser, and distribution controller utilizes and divides
Section device realizes closing of short circuit current, and distribution controller utilizes automatic circuit to excise short circuit current, the pre-set coincidence of automatic circuit
Number of times, when the actual coincidence number of times of switch reaches setting value and switchs board gate-dividing state, then locking automatic closing, isolation event
Barrier circuit, automatic circuit is provided with gap periods, and gap periods is the time interval of each deciliter of automatic circuit operation, dividing of sectionaliser
Closing operation is decided by line voltage distribution, the power supply of switch i.e. separating brake, then closes a floodgate after incoming call.
As one preferred embodiment, according to the maximum short circuit current of power equipment, the quick-break of power equipment is determined
One sub-value, wherein quick-break one sub-value is linear with maximum short circuit current, and maximum short circuit current uses directly maximum transformation
Device is placed in route head end and calculates maximum short circuit current, and the supply line of described power supply unit connects protection system to earth, described
Protection system to earth is when occurring power supply unit to touch shell earth fault, and earth current passes through earth resistance and the ground connection of power supply unit
The earth resistance of protection system forms loop, and produces pressure drop on two resistance, reduces institute on power supply unit shell with voltage.
As one preferred embodiment, current quick is utilized, it is stipulated that three-phase shortcircuit under maximum operational mode
Time, protection domain is maximum, and for lmax, under minimum operational mode during line to line fault, protection domain is minimum, for lmin, wherein,
Under minimum operational mode, the relative value of fast tripping protection scope meets:
In formula: K1rel--safety factor；Line end three-phase shortcircuit stable state electricity under I2k3.max--maximum operational mode
Stream；Iopk--protection device one-off electric current；Es--system reference voltage；Under XS.Max--system maximum operational mode
Little equivalent impedance, current quick scope includes lower bar circuit or the end of power equipment, the action current of protection seting
The overload electric current of circuit should be escaped, when supply line's imbalance of three-phase voltage rate is more than target setting, and prolong beyond imbalance
Time the time after, temperature controller controls to start Voltage unbalance protection, determines three-phase piezoelectricity unbalance factor, uses and arrange capacitor
Device realizes, and some group capacitor devices is carried out star-star connection mode connection, the voltage power taking container of unstable voltage protection
The open delta voltage of device group.
As one preferred embodiment, on-line temperature monitoring device includes the temperature sensing being arranged on power equipment
Device, described temperature sensor connects temperature controller, and described temperature controller connects display, communication unit and warning list
Unit, described temperature sensor monitors the temperature data of power equipment in real time, and the data of monitoring is sent to temperature controller, when
When the power equipment temperature of described temperature sensor monitors is more than the first threshold values, real time temperature is passed through display by temperature controller
Display, and carry out the first instruction of reporting to the police by alarm unit.
As one preferred embodiment, when the power equipment temperature of described temperature sensor monitors is more than the second threshold values
Time, alarm unit carries out emergency alarm instruction, and temperature controller is by the power supply unit of partial cut power equipment, and is cutting off
Before notify user, when the power equipment temperature of described temperature sensor monitors is more than the second threshold values, temperature controller control outside
Equipment refrigeration plant carries out cooling process to power equipment.
As one preferred embodiment, when the temperature of temperature sensor monitors to power equipment less than the 3rd threshold values and
After meeting the first Preset Time, temperature controller controls part external equipment refrigeration plant and stops carrying out power equipment at cooling
Reason, temperature controller connects electric quantity monitoring device, the powering quantity data of electric quantity monitoring device monitoring power supply unit, temperature control
The temperature data of power equipment monitored by device processed, and the powering quantity data and temperature data according to monitoring set up electricity temperature number
According to relation, according to electricity temperature data relation, set up electricity critical point and zero point, when the electricity of powering in real time of power supply unit
When amount reaches electricity critical point, alarm unit carries out the second warning instruction；After real-time powering quantity is beyond electricity critical point,
Temperature controller starts refrigeration plant；When the real time temperature of power equipment reaches zero point, alarm unit carries out the 3rd
Reporting to the police and indicate, when real time temperature is beyond zero point, temperature controller cuts out part power supply unit.
As one preferred embodiment, described temperature controller connects has memorizer, described memorizer internal memory to contain
Powering quantity historical data and temperature history, user utilizes the powering quantity history number in temperature controller consults memory
According to and temperature history, and Query Result is shown by display.
As one preferred embodiment, described temperature controller remotely connects Surveillance center, described long-range connection
Mode include wired/wireless mode, described temperature controller connects has humidity sensor, described humidity sensor to be arranged at electricity
In power equipment local environment, timing or variable interval detection ambient humidity, and ambient humidity data are sent to temperature control
Device.
After have employed technique scheme, the invention has the beneficial effects as follows: by estimation prospective short circuit current, and quick-break electricity
Flow valuve, is up to prospective short circuit current shortly and achieves auto-cutout protection；Meanwhile, it is additionally provided with Voltage unbalance protection, logical
The unbalance factor crossing three-phase piezoelectricity determines the target setting of imbalance of three-phase voltage rate；The present invention is capable of power distribution protection, protects
The balance movement of card power equipment；By the temperature of the temperature sensor Real-time Collection power equipment of power equipment, when reaching pre-
If during temperature, controller controls alarm unit and carries out instruction of reporting to the police, and when exceeding preset temperature, controller controls power supply unit and breaks
Open connection, it is ensured that the power supply unit continued power to power equipment so that power equipment quits work, namely stop send out
Heat；Meanwhile, controller is also associated with refrigeration plant, power equipment can be carried out cooling process, it is ensured that power equipment is just
Often run, it is to avoid the generation of contingency.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the block diagram of the present invention；
Fig. 2 is the on-line temperature monitoring device block diagram of the present invention；
Fig. 3 is the power distribution protective device block diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
As Figure 1-3, this power equipment remote monitoring system, including power equipment, the online temperature of described power equipment
Monitoring device and power distribution protective device, described on-line temperature monitoring device and Intelligent switch cabinet control device connection centralised temperature
Controller, described on-line temperature monitoring device is monitored the temperature data of power equipment in real time, and is sent to by described temperature data
Centralised temperature controller, when described temperature data is beyond pre-set threshold value, centralised temperature controller controls power distribution protective device and cuts
The power supply of disconnected power equipment.
Described power distribution protective device, including distribution controller, described distribution controller connect have short-circuit protector, described in join
Electric controller monitors electricity in real time according to the prospective short circuit current of the parameter determination power supply unit of power equipment, described short-circuit protector
The operation short circuit current of power equipment, when the operation short circuit current of monitoring reaches prospective short circuit current, and short circuit duration is beyond first
During pre-set threshold value, shown by display, and described short-circuit protector cuts off the power supply of power equipment.
Short-circuit protector includes automatic circuit and sectionaliser, and distribution controller utilizes sectionaliser to realize closing of short circuit current,
Distribution controller utilizes automatic circuit to excise short circuit current, and automatic circuit pre-set coincidence number of times, when the actual coincidence time of switch
When number reaches setting value and switchs board gate-dividing state, then locking automatic closing, isolated fault circuit, automatic circuit is provided with interval
In the cycle, gap periods is the time interval of each deciliter of automatic circuit operation, and a deciliter operation for sectionaliser is decided by line voltage distribution, opens
The power supply i.e. separating brake closed, then closes a floodgate after incoming call.
According to the maximum short circuit current of power equipment, determine quick-break one sub-value of power equipment, wherein quick-break one sub-value with
Maximum short circuit current is linear, and maximum short circuit current employing is directly placed in route head end maximum transformator and calculates maximum short
Road electric current, the supply line of described power supply unit connects protection system to earth, and described protection system to earth sets when generation power supply
For when touching shell earth fault, earth current is formed back by the earth resistance of power supply unit and the earth resistance of protection system to earth
Road, and on two resistance, produce pressure drop, reduce institute on power supply unit shell with voltage.
Utilizing current quick, it is stipulated that under maximum operational mode during three-phase shortcircuit, protection domain is maximum, for lmax,
Under minimum operational mode during line to line fault, protection domain is minimum, for lmin, wherein, under minimum operational mode, fast tripping protection
The relative value of scope meets:
In formula: K1rel--safety factor；Line end three-phase shortcircuit stable state electricity under I2k3.max--maximum operational mode
Stream；Iopk--protection device one-off electric current；Es--system reference voltage；Under XS.Max--system maximum operational mode
Little equivalent impedance, current quick scope includes lower bar circuit or the end of power equipment, the action current of protection seting
The overload electric current of circuit should be escaped, when supply line's imbalance of three-phase voltage rate is more than target setting, and prolong beyond imbalance
Time the time after, temperature controller controls to start Voltage unbalance protection, determines three-phase piezoelectricity unbalance factor, uses and arrange capacitor
Device realizes, and some group capacitor devices is carried out star-star connection mode connection, the voltage power taking container of unstable voltage protection
The open delta voltage of device group.
Including the temperature sensor being arranged on power equipment, described temperature sensor connects temperature controller, described
Temperature controller connects has display, communication unit and alarm unit, described temperature sensor to monitor the temperature of power equipment in real time
Degrees of data, and the data of monitoring are sent to temperature controller, when the power equipment temperature of described temperature sensor monitors exceedes
During the first threshold values, real time temperature is shown by temperature controller by display, and carries out the first warning by alarm unit
Instruction.
When the power equipment temperature of described temperature sensor monitors is more than the second threshold values, alarm unit carries out emergency alarm
Instruction, temperature controller is by the power supply unit of partial cut power equipment, and notifies user before cutting, when described temperature passes
When the power equipment temperature of sensor monitoring is more than the second threshold values, temperature controller controls external equipment refrigeration plant to power equipment
Carry out cooling process.
After the temperature of temperature sensor monitors to power equipment is less than the 3rd threshold values and meets the first Preset Time, temperature
Controller controls part external equipment refrigeration plant and stops carrying out power equipment cooling process, and temperature controller connects electricity
Monitoring device, the powering quantity data of electric quantity monitoring device monitoring power supply unit, the temperature of temperature controller monitoring power equipment
Data, and according to monitoring powering quantity data and temperature data set up electricity temperature data relation, according to electricity temperature number
According to relation, set up electricity critical point and zero point, when the real-time powering quantity of power supply unit reaches electricity critical point, report
Alert unit carries out the second warning instruction；After real-time powering quantity is beyond electricity critical point, temperature controller starts refrigeration and sets
Standby；When the real time temperature of power equipment reaches zero point, alarm unit carries out the 3rd warning instruction, when real time temperature surpasses
When going out zero point, temperature controller cuts out part power supply unit.
Described temperature controller connects memorizer, and described memorizer internal memory contains powering quantity historical data and temperature is gone through
History data, user utilizes the powering quantity historical data in temperature controller consults memory and temperature history, and will look into
Ask result to be shown by display.
Described temperature controller remotely connects Surveillance center, and the mode of described long-range connection includes wired/wireless mode,
Described temperature controller connect have humidity sensor, described humidity sensor to be arranged in power equipment local environment, timing or
Variable interval detection ambient humidity, and ambient humidity data are sent to temperature controller.
The operation principle of this power equipment remote monitoring system is: by estimation prospective short circuit current, and quick-break current value,
It is up to prospective short circuit current shortly and achieves auto-cutout protection；Meanwhile, it is additionally provided with Voltage unbalance protection, passes through three-phase
The unbalance factor of piezoelectricity determines the target setting of imbalance of three-phase voltage rate；The present invention is capable of power distribution protection, it is ensured that electric power
The balance movement of equipment；By the temperature of the temperature sensor Real-time Collection power equipment of power equipment, when reaching preset temperature
Time, controller controls alarm unit and carries out instruction of reporting to the police, and when exceeding preset temperature, controller controls power supply unit and disconnects even
Connect, it is ensured that the power supply unit continued power to power equipment, so that power equipment quits work, namely the heating stopped；
Meanwhile, controller is also associated with refrigeration plant, power equipment can be carried out cooling process, it is ensured that the normal fortune of power equipment
OK, it is to avoid the generation of contingency.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. a power equipment remote monitoring system, including power equipment, it is characterised in that the online temperature of described power equipment is supervised
Survey device and power distribution protective device, described on-line temperature monitoring device and Intelligent switch cabinet control device connection and have central control
Device, described on-line temperature monitoring device is monitored the temperature data of power equipment in real time, and described temperature data is sent to central authorities
Controller, when described temperature data is beyond pre-set threshold value, central controller controls power distribution protective device cuts off power equipment
Power supply.
Power equipment remote monitoring system the most according to claim 1, it is characterised in that described power distribution protective device, bag
Including distribution controller, described distribution controller connects short-circuit protector, and described distribution controller is according to the parameter of power equipment
Determine that the prospective short circuit current of power supply unit, described short-circuit protector monitor the operation short circuit current of power equipment in real time, work as prison
The operation short circuit current surveyed reaches prospective short circuit current, and when short circuit duration exceeds the first pre-set threshold value, is carried out by display
Display, and the power supply of described short-circuit protector cut-out power equipment.
Power equipment remote monitoring system the most according to claim 2, it is characterised in that short-circuit protector includes automatic circuit
And sectionaliser, distribution controller utilizes sectionaliser to realize closing of short circuit current, and distribution controller utilizes automatic circuit excision short circuit
Electric current, automatic circuit pre-set coincidence number of times, when the actual coincidence number of times of switch reaches setting value and switchs board separating brake shape
During state, then locking automatic closing, isolated fault circuit, automatic circuit is provided with gap periods, and gap periods is that automatic circuit divides every time
The time interval of closing operation, a deciliter operation for sectionaliser is decided by line voltage distribution, and the power supply of switch i.e. separating brake then closes after incoming call
Lock.
Power equipment remote monitoring system the most according to claim 3, it is characterised in that the maximum according to power equipment is short
Road electric current, determines quick-break one sub-value of power equipment, and wherein quick-break one sub-value is linear with maximum short circuit current, maximum short
Road electric current uses and directly maximum transformator is placed in route head end calculating maximum short circuit current, the supply line of described power supply unit
Connecting and have protection system to earth, described protection system to earth is when occurring power supply unit to touch shell earth fault, and earth current passes through
The earth resistance of power supply unit and the earth resistance of protection system to earth form loop, and produce pressure drop on two resistance, reduce
On power supply unit shell, institute is with voltage.
Power equipment remote monitoring system the most according to claim 4, it is characterised in that utilize current quick, rule
When being scheduled on three-phase shortcircuit under maximum operational mode, protection domain is maximum, for lmax, under minimum operational mode during line to line fault,
Protection domain is minimum, and for lmin, wherein, under minimum operational mode, the relative value of fast tripping protection scope meets:
In formula: K1rel--safety factor；Line end three-phase shortcircuit steady-state current under I2k3.max--maximum operational mode；
Iopk--protection device one-off electric current；Es--system reference voltage；Minimum under XS.Max--system maximum operational mode
Equivalent impedance, current quick scope includes lower bar circuit or the end of power equipment, and the action current of protection seting should
Escape the overload electric current of circuit, when supply line's imbalance of three-phase voltage rate is more than target setting, and beyond uneven time delay
After time, controller controls to start Voltage unbalance protection, determines three-phase piezoelectricity unbalance factor, uses and arranges capacitor device in fact
Existing, some group capacitor devices are carried out star-star connection mode connection, the voltage power taking case group of unstable voltage protection
Open delta voltage.
Power equipment remote monitoring system the most according to claim 5, it is characterised in that described on-line temperature monitoring device
Including the temperature sensor being arranged on power equipment, described temperature sensor connects temperature controller, and described temperature controls
Device connects has display, communication unit and alarm unit, described temperature sensor to monitor the temperature data of power equipment in real time, and
The data of monitoring are sent to temperature controller, when the power equipment temperature of described temperature sensor monitors is more than the first threshold values
Time, real time temperature is shown by temperature controller by display, and carries out the first instruction of reporting to the police by alarm unit.
Power equipment remote monitoring system the most according to claim 6, it is characterised in that when described temperature sensor monitors
Power equipment temperature more than the second threshold values time, alarm unit carries out emergency alarm instruction, temperature controller by partial cut electricity
The power supply unit of power equipment, and notify user before cutting, when the power equipment temperature of described temperature sensor monitors exceedes
During the second threshold values, temperature controller controls external equipment refrigeration plant and power equipment is carried out cooling process.
Power equipment remote monitoring system the most according to claim 7, it is characterised in that when temperature sensor monitors is to electricity
After the temperature of power equipment is less than the 3rd threshold values and satisfied first Preset Time, temperature controller controls part external equipment refrigeration and sets
Standby stopping carries out cooling process to power equipment, and temperature controller connects electric quantity monitoring device, and electric quantity monitoring device monitoring supplies
The powering quantity data of electricity equipment, the temperature data of temperature controller monitoring power equipment, and according to the powering quantity of monitoring
Data and temperature data set up electricity temperature data relation, according to electricity temperature data relation, set up electricity critical point and temperature
Critical point, when the real-time powering quantity of power supply unit reaches electricity critical point, alarm unit carries out the second warning instruction；When
Powering quantity is beyond after electricity critical point in real time, and temperature controller starts refrigeration plant；When the real time temperature of power equipment reaches
During zero point, alarm unit carries out the 3rd warning instruction, and when real time temperature is beyond zero point, temperature controller closes
Closing part divides power supply unit.
Power equipment remote monitoring system the most according to claim 8, it is characterised in that described temperature controller connects to be had
Memorizer, described memorizer internal memory contains powering quantity historical data and temperature history, and user utilizes temperature controller to look into
Ask the powering quantity historical data in memorizer and temperature history, and Query Result is shown by display.
Power equipment remote monitoring system the most according to claim 9, it is characterised in that described temperature controller is long-range
Connecting and have Surveillance center, the mode of described long-range connection to include wired/wireless mode, described temperature controller connects has humidity to pass
Sensor, described humidity sensor is arranged in power equipment local environment, timing or variable interval detection ambient humidity, and will
Ambient humidity data are sent to temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677470.0A CN106160231B (en) | 2016-08-16 | 2016-08-16 | A kind of power equipment remote intelligent monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677470.0A CN106160231B (en) | 2016-08-16 | 2016-08-16 | A kind of power equipment remote intelligent monitoring system |
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| Publication Number | Publication Date |
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| CN106160231A true CN106160231A (en) | 2016-11-23 |
| CN106160231B CN106160231B (en) | 2019-02-26 |
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| CN201610677470.0A Expired - Fee Related CN106160231B (en) | 2016-08-16 | 2016-08-16 | A kind of power equipment remote intelligent monitoring system |
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| CN (1) | CN106160231B (en) |
Cited By (6)
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| CN108958206A (en) * | 2018-09-26 | 2018-12-07 | 北京市恩华远航智能科技有限公司 | A kind of equipment running status intelligent measurement platform |
| CN109066576A (en) * | 2018-08-29 | 2018-12-21 | 南京创耀汽车技术有限公司 | A kind of intelligent protection processing method |
| CN110289594A (en) * | 2019-06-17 | 2019-09-27 | 深圳市波若波罗科技有限公司 | The overheat protecting system of a kind of electronic equipment, method and device |
| CN112150776A (en) * | 2020-09-29 | 2020-12-29 | 广州华工中云信息技术有限公司 | Alarm method for monitoring critical value of safety electric equipment |
| CN112631170A (en) * | 2020-12-07 | 2021-04-09 | 国网宁夏电力有限公司电力科学研究院 | Electric power data environmental monitoring system |
| CN114035454A (en) * | 2021-11-10 | 2022-02-11 | 广东电网有限责任公司东莞供电局 | Monitoring and early warning protection switch |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109066576A (en) * | 2018-08-29 | 2018-12-21 | 南京创耀汽车技术有限公司 | A kind of intelligent protection processing method |
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| CN110289594A (en) * | 2019-06-17 | 2019-09-27 | 深圳市波若波罗科技有限公司 | The overheat protecting system of a kind of electronic equipment, method and device |
| CN110289594B (en) * | 2019-06-17 | 2021-08-03 | 深圳市波若波罗科技有限公司 | Overheat protection system, method and device for electronic equipment |
| CN112150776A (en) * | 2020-09-29 | 2020-12-29 | 广州华工中云信息技术有限公司 | Alarm method for monitoring critical value of safety electric equipment |
| CN112631170A (en) * | 2020-12-07 | 2021-04-09 | 国网宁夏电力有限公司电力科学研究院 | Electric power data environmental monitoring system |
| CN114035454A (en) * | 2021-11-10 | 2022-02-11 | 广东电网有限责任公司东莞供电局 | Monitoring and early warning protection switch |
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| Publication number | Publication date |
|---|---|
| CN106160231B (en) | 2019-02-26 |
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