CN110350490A - Intelligent box becomes protection measurement and control integration device - Google Patents
Intelligent box becomes protection measurement and control integration device Download PDFInfo
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- CN110350490A CN110350490A CN201910695523.5A CN201910695523A CN110350490A CN 110350490 A CN110350490 A CN 110350490A CN 201910695523 A CN201910695523 A CN 201910695523A CN 110350490 A CN110350490 A CN 110350490A
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- 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
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Abstract
The invention discloses a kind of intelligent boxes to become protection measurement and control integration device, by the way that three sections of specified time overcurrent protections are arranged to power transformation device, overcurrent time definite value is set, overcurrent protection is carried out to circuit, the zero sequence definite time protection module is after ground fault occurs for current earthing, there is zero sequence overcurrent, throw by main control module control control and move back, selection alarm or tripping, the under-voltage protection module acquires three voltage values by the low-voltage measuring unit, the electric current of the amperometric determination unit monitoring three-line, and it is compared with low-voltage definite value, when three line voltages are below definite value, and any one phase has electric current, open under-voltage protection movement, the over-voltage protection module is monitored three-line, when any one voltage between phases is greater than adjusting voltage, open overvoltage protection, by remotely to become electric current and The protection and observing and controlling of voltage guarantee the normal operation of box type transformation device.
Description
Technical field
The present invention relates to automation control areas more particularly to a kind of intelligent box to become protection measurement and control integration device.
Background technique
Now with the fast development of Wind Power Generation Industry, it is automatic that the non intelligentization of current box type transformer becomes influence wind-powered electricity generation
The maximum of change process hinders, case become in transformer various information can not real-time perfoming real-time guard and observing and controlling, make case change can only
Various information such as electric current, voltage, temperature etc. by operations staff's periodical inspection, but when due to box type transformer operation can not be into
Row real time monitoring, when there is abnormal even failure can not and alarm or starting protection, seriously affect the safe operation of equipment.
Summary of the invention
The purpose of the present invention is to provide a kind of intelligent boxes to become protection measurement and control integration device, it is intended to solve in the prior art
Box type transformer operation when various information such as electric current, voltage, temperature etc. can not be monitored in real time, when have it is abnormal or even therefore
When barrier can not and alarm or starting protection, the technical issues of seriously affecting the safe operation of equipment.
To achieve the above object, a kind of intelligent box that the present invention uses becomes protection measurement and control integration device, including master control mould
Block and the overcurrent protection mould group being connected to the main control module, voltage protection mould group and throwing protective module is moved back, the overcurrent is protected
Shield mould group is used to acquire the three-phase electricity flow valuve of transformer, and is transmitted to the main control module, the main control module by current value with
The protection definite value of storage is compared, if meeting protection act condition, the main control module can be chosen tripping and alarm,
The voltage protection mould group is used to acquire the voltage value of transformer, and is transmitted to the main control module, and the main control module will be electric
Pressure value is compared with the protection definite value of storage, if meeting protection act condition, the main control module can be chosen tripping
And alarm, it is described move back throw that protective module is used to control route move back throwing, and be controlled by the main control module, execute the master control mould
Block moves back throwing order；The overcurrent protection mould group includes three-stage specified time overcurrent protection module and zero sequence definite time protection mould
Block, the three-stage specified time overcurrent protection module is used to carry out independent adjusting to each section of electric current and time definite value, and is transmitted to
The main control module, current value is compared by the main control module with the protection definite value of storage, if meeting protection act condition,
It then moves back to throw protective module and carry out protection to route described in main control module control and moves back throwings, the zero sequence definite time protection module use
The zero-sequence current value generated when acquiring transformer current imbalance, and it is transmitted to the main control module, the main control module will
Zero-sequence current value is compared with the protection definite value of storage, if meeting protection act condition, described in the main control module control
Move back throw protective module to route carry out protection move back throwing；The voltage protection mould group includes under-voltage protection module and overvoltage protection
Module, the under-voltage protection module are same as the voltage value of acquisition three-phase circuit, and are transmitted to the main control module, the master control
Module is compared with the protection definite value of storage, if three line voltages below protect definite value, and any phase has electric current, then described
It moves back to throw protective module and carry out protection to circuit described in main control module control and moves back throwings, the over-voltage protection module is same as acquiring three-phase
The voltage value of circuit, and it is transmitted to the main control module, the main control module is compared with the protection definite value of storage, if any
Voltage between phases is greater than adjusting voltage, then moves back to throw protective module and carry out protection to circuit described in main control module control and move back throwing.
Wherein, the under-voltage protection module includes low-voltage measuring unit and amperometric determination unit, and the low-voltage is surveyed
Amount unit is used to acquire the voltage value of three-phase circuit, and is transmitted to the main control module, the protection of the main control module and storage
Definite value is compared, meanwhile, the amperometric determination unit is used to monitor the current value of three-phase circuit, and is transmitted to the master control mould
Block, the current switching of the main control module decision circuitry, when three line voltages are below definite value, and any phase has electric current, delay
Time arrives, and moves back to throw protective module and carry out protection to circuit described in main control module control and moves back throwing.
Wherein, it further includes analog input mould group that the intelligent box, which becomes protection measurement and control integration device, and the analog quantity is defeated
Enter mould group for electrical power, electric energy and capacitor that remote collection case becomes, and be transmitted to the main control module, calculates individual channel
Electricity.
Wherein, the analog input mould group includes telemetry module and subsidiary module, and the telemetry module is for remote
Electrical power, electric energy and the capacitor that journey vasculum becomes, and it is transmitted to the main control module, calculate the electricity of three accesses；Institute
Input of the subsidiary module for direct current telemetering amount is stated, and is transmitted to the main control module.
Wherein, it further includes non-ionizing energy loss mould group that the intelligent box, which becomes protection measurement and control integration device, and the non electrical quantity is protected
Shield module is transmitted to the main control module for acquiring gas concentration, temperature value and oil pressure value, with the main control module number
It is compared according to the standard value in library, if it is higher either signal value occur, moves back throwing protective module described in the main control module control
Protection is carried out to circuit and moves back throwing.
Wherein, the non-ionizing energy loss mould group includes gas monitor module and high temperature monitoring module, the gas monitor mould
Block is transmitted to the main control module for monitoring gas concentration, carries out pair with the standard value of the main control module database
Than, if there is protection act condition, the main control module control circuit output trip signal or alarm signal, until the master
It is normal to control the received numerical value of module；The high temperature monitoring module is transmitted to the master for the temperature value inside monitoring case change
Module is controlled, is compared with the standard value of the main control module database, if there is protection act condition, the main control module
Control circuit exports trip signal or alarm signal, until the received numerical value of the main control module is normal.
Wherein, the non-ionizing energy loss mould group further includes oil pressure monitoring modular, and the oil pressure monitoring modular is for monitoring oil
Position and oil pressure, and it is transmitted to the main control module, it is compared with the standard value of the main control module database, if protecting
Operation condition, then the main control module control circuit is tripped or is alerted.
Wherein, the non-ionizing energy loss mould group further includes extension non-ionizing energy loss module, the extension non-ionizing energy loss mould
Block is acted for selection in tripping or alarm, receives the trip signal and alarm signal of the main control module, and keep signal extremely
The extension non electrical quantity malfunction releases.
Wherein, it further includes plant failure alarm module, described device event that the intelligent box, which becomes protection measurement and control integration device,
Barrier alarm module is used to receive the control information of the main control module, and is alerted, while latch-up protection.
A kind of intelligent box of the invention becomes protection measurement and control integration device, by the way that three sections of specified time overcurrents are arranged to power transformation device
Overcurrent time definite value is arranged in protection, carries out overcurrent protection to circuit, the zero sequence definite time protection module occurs in current earthing
After ground fault, there is zero sequence overcurrent, throw by main control module control control and move back, selection alarm or tripping are described low
Voltage protection module acquires three voltage values by the low-voltage measuring unit, and the amperometric determination unit monitors three-line
Electric current, and be compared with low-voltage definite value, when three line voltages are below definite value, and any one phase has electric current, opens low
Voltage protection movement, the over-voltage protection module are monitored three-line, when any one voltage between phases is greater than adjusting electricity
Pressure opens overvoltage protection, by the protection and observing and controlling remotely to electric current and voltage is become, guarantees the normal of box type transformation device
Operation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram that intelligent box of the present invention becomes protection measurement and control integration device.
In figure: 1- main control module, 2- overcurrent protection mould group, 3- voltage protection mould group, 4-, which are moved back, throws protective module, 5- analog quantity
It inputs mould group, 6- non-ionizing energy loss mould group, 7- plant failure alarm module, 21- three-stage and definites time-lag overcurrent protection module, 22-
Zero sequence definite time protection module, 31- under-voltage protection module, 32- over-voltage protection module, 51- telemetry module, 52- auxiliary are surveyed
Measure module, 61- gas monitor module, 62- high temperature monitoring module, 63- oil pressure monitoring modular, 64- extension non-ionizing energy loss module,
100- intelligent box becomes protection measurement and control integration device, 311- low-voltage measuring unit, 312- amperometric determination unit.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, in the description of the present invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
Embodiment 1:
Referring to Fig. 1, the present invention provides a kind of intelligent boxes to become protection measurement and control integration device 100, including main control module 1
And connect with the main control module 1 overcurrent protection mould group 2, voltage protection mould group 3 and move back throw protective module 4, the overcurrent
Protection mould group 2 is used to acquire the three-phase electricity flow valuve of transformer, and is transmitted to the main control module 1, and the main control module 1 is by electric current
Value with storage protection definite value be compared, if meeting protection act condition, the main control module 1 can be chosen tripping and
Alarm, the voltage protection mould group 3 are used to acquire the voltage value of transformer, and are transmitted to the main control module 1, the master control mould
Voltage value is compared by block 1 with the protection definite value of storage, if meeting protection act condition, the main control module 1 can be carried out
Selection tripping and alarm, it is described move back throw that protective module 4 is used to control route move back throwings, and be controlled by the main control module 1, execution
The main control module 1 moves back throwing order；The overcurrent protection mould group 2 includes three-stage specified time overcurrent protection module 21 and zero sequence
Definite time protection module 22, the three-stage specified time overcurrent protection module 21 are used to carry out each section of electric current and time definite value only
Vertical adjusting, and it is transmitted to the main control module 1, current value is compared by the main control module 1 with the protection definite value of storage, if
Meet protection act condition, then the main control module 1 control it is described move back to throw protective module 4 and carry out protection to route move back throwing, it is described
Zero sequence definite time protection module 22 is used for the zero-sequence current value generated when acquiring transformer current imbalance, and is transmitted to the master
Module 1 is controlled, zero-sequence current value is compared by the main control module 1 with the protection definite value of storage, if meeting protection act condition,
Then the main control module 1 control it is described move back to throw protective module 4 and carry out protection to route move back throwing；The voltage protection mould group 3 includes
Under-voltage protection module 31 and over-voltage protection module 32, the under-voltage protection module 31 are same as the voltage of acquisition three-phase circuit
Value, and it is transmitted to the main control module 1, the main control module 1 is compared with the protection definite value of storage, if three line voltages are all
Lower than protection definite value, and any phase has electric current, then the main control module 1 controls the throwing protective module 4 of moving back and protects to circuit
Shield moves back throwing, and the over-voltage protection module 32 is same as the voltage value of acquisition three-phase circuit, and is transmitted to the main control module 1, institute
It states main control module 1 to be compared with the protection definite value of storage, if any voltage between phases is greater than adjusting voltage, the main control module
1 control described in move back throw protective module 4 to circuit carry out protection move back throwing.
Further, the under-voltage protection module 31 includes surveying voltage measurement unit 311 and amperometric determination unit 312,
The voltage value surveyed voltage measurement unit 311 and be used to acquire three-phase circuit, and it is transmitted to the main control module 1, the master control
Module 1 is compared with the protection definite value of storage, meanwhile, the amperometric determination unit 312 is used to monitor the electric current of three-phase circuit
Value, and it is transmitted to the main control module 1, the current switching of 1 decision circuitry of main control module, when three line voltages are below fixed
Value, and any phase has electric current, delay time arrives, and the main control module 1 controls the throwing protective module 4 of moving back and protects to circuit
Move back throwing.
In the present embodiment, the intelligent box becomes the storage temperature of protection measurement and control integration device 100 as -45 DEG C~+80
DEG C, operating temperature is -40 DEG C~+70 DEG C, and humidity is not more than 80%, and the monthly average maximum relative humidity of the most wet moon is 90%, together
When this month mean monthly maximum temperature be 25 DEG C and surface without condensation.When maximum temperature is+40 DEG C, average maximum relative humidity is not
More than 50%, atmospheric pressure is 80~110kPa, and acid, alkalinity or other corrosivity and fiery gas are not contained in surrounding air
The interior of the rain-proof of body, snow defence does not apply energizing quantity under limiting value, and device does not occur irreversible variation, and temperature is restored
Afterwards, device works normally, and described move back throws protective module 4 as protection soft pressing plate, is connected on the route of connection power transformation device, the intelligence
Energy case, which becomes protection measurement and control integration device 100, has three sections of specified times overcurrent protection module, each section of electric current and time definite value
It can independently adjust, soft pressing plate is respectively set control the throwing of this three section protection and move back, it is 0 second that I sections of overcurrent, which can adjust, wherein III section of overcurrent
It can choose tripping or alarm；The intelligent box becomes protection measurement and control integration device 100 and is additionally provided with the zero sequence definite time protection
Module 22, defencive function are thrown by soft pressing plate control and are moved back, and alarm or tripping may be selected；The intelligent box becomes protection measurement and control integration dress
It sets 100 and is additionally provided with the under-voltage protection module 31, defencive function can be carried out throwing by soft pressing plate and be moved back, when three line voltages are below
Definite value, and any Xiang Youliu, delay time arrive, under-voltage protection movement.The intelligent box becomes protection measurement and control integration device 100
It is additionally provided with the over-voltage protection module 32, alarm or tripping may be selected, and throw by pressing plate and move back, overvoltage protection soft pressing plate is thrown
After entering, when any voltage between phases is greater than adjusting voltage, deferred action of the protection through adjusting, in this way, by power transformation device setting three
Section specified time overcurrent protection, is arranged overcurrent time definite value, carries out overcurrent protection, the zero sequence definite time protection module 22 to circuit
After ground fault occurs for current earthing, there is zero sequence overcurrent, throw by the main control module 1 control control and move back, selection is accused
Alert or tripping, the under-voltage protection module 31 acquire three voltage values, the electric current by the survey voltage measurement unit 311
Determination unit 312 monitors the electric current of three-line, and is compared with low-voltage definite value, when three line voltages are below definite value,
And any one phase has electric current, opens under-voltage protection movement, the over-voltage protection module 32 is monitored three-line, when
Any one voltage between phases is greater than adjusting voltage, opens overvoltage protection, by remotely to the protection for becoming electric current and voltage and
Observing and controlling guarantees the normal operation of box type transformation device.
Embodiment 2:
Referring to Fig. 1, the present invention provides a kind of intelligent boxes to become protection measurement and control integration device 100, including main control module 1
And connect with the main control module 1 overcurrent protection mould group 2, voltage protection mould group 3 and move back throw protective module 4, the overcurrent
Protection mould group 2 is used to acquire the three-phase electricity flow valuve of transformer, and is transmitted to the main control module 1, and the main control module 1 is by electric current
Value with storage protection definite value be compared, if meeting protection act condition, the main control module 1 can be chosen tripping and
Alarm, the voltage protection mould group 3 are used to acquire the voltage value of transformer, and are transmitted to the main control module 1, the master control mould
Voltage value is compared by block 1 with the protection definite value of storage, if meeting protection act condition, the main control module 1 can be carried out
Selection tripping and alarm, it is described move back throw that protective module 4 is used to control route move back throwings, and be controlled by the main control module 1, execution
The main control module 1 moves back throwing order；The overcurrent protection mould group includes three-stage specified time overcurrent protection module 21 and zero sequence
Definite time protection module 22, the three-stage specified time overcurrent protection module 21 are used to carry out each section of electric current and time definite value only
Vertical adjusting, and it is transmitted to the main control module 1, current value is compared by the main control module 1 with the protection definite value of storage, if
Meet protection act condition, then the main control module 1 control it is described move back to throw protective module 4 and carry out protection to route move back throwing, it is described
Zero sequence definite time protection module 22 is used for the zero-sequence current value generated when acquiring transformer current imbalance, and is transmitted to the master
Module 1 is controlled, zero-sequence current value is compared by the main control module 1 with the protection definite value of storage, if meeting protection act condition,
Then the main control module 1 control it is described move back to throw protective module 4 and carry out protection to route move back throwing；The voltage protection mould group 3 includes
Under-voltage protection module 31 and over-voltage protection module 32, the under-voltage protection module 31 are same as the voltage of acquisition three-phase circuit
Value, and it is transmitted to the main control module 1, the main control module 1 is compared with the protection definite value of storage, if three line voltages are all
Lower than protection definite value, and any phase has electric current, then the main control module 1 controls the throwing protective module 4 of moving back and protects to circuit
Shield moves back throwing, and the over-voltage protection module 32 is same as the voltage value of acquisition three-phase circuit, and is transmitted to the main control module 1, institute
It states main control module 1 to be compared with the protection definite value of storage, if any voltage between phases is greater than adjusting voltage, the main control module
1 control described in move back throw protective module 4 to circuit carry out protection move back throwing.
Further, it further includes analog input mould group 5 that the intelligent box, which becomes protection measurement and control integration device 100, described
Analog input mould group 5 is used for electrical power, electric energy and the capacitor that remote collection case becomes, and is transmitted to the main control module 1, calculates
The electricity of individual channel out.
Further, the analog input mould group 5 includes telemetry module 51 and subsidiary module 52, the telemetering mould
Block 51 is used for electrical power, electric energy and the capacitor that remote collection case becomes, and is transmitted to the main control module 1, calculates three accesses
Electricity；The subsidiary module 52 is used for the input of direct current telemetering amount, and is transmitted to the main control module 1.
In the present embodiment, in the telemetry module 51, Ia1, Ib1, Ic1 are that measurement is inputted with TA.Ua1,Ub1,Uc1
For the input of first via busbar voltage, is calculated together with Ia1, Ib1, Ic1 and form the telemeterings amount such as P1, Q1, PF1；Ia2, Ib2, Ic2 are
Measurement is inputted with TA.Ua2, Ub2, Uc2 be the second tunnel busbar voltage input, together with Ia2, Ib2, Ic2 calculate formed P2, Q2,
The telemeterings amount such as PF2；Ia3, Ib3, Ic3 are that measurement is inputted with TA.Ua3, Ub3, Uc3 be third road busbar voltage input, with Ia3,
Ib3, Ic3 are calculated together forms the telemeterings amount such as P3, Q3, PF3；The special metering IC built in device calculates EP1 (EQ1), EP2
(EQ2), EP3 (EQ3) electricity；The subsidiary module 52 is inputted by direct current telemetering amount, can access 4-20mA (0-
5V) direct current can also be directly accessed PT100, and most 9 tunnels calculate standard definite value by input measurement analog quantity, convenient for logical
It crosses remotely to electric current and voltage progress observing and controlling is become, guarantees the normal operation of box type transformation device.
Embodiment 3:
Referring to Fig. 1, the present invention provides a kind of intelligent boxes to become protection measurement and control integration device 100, including main control module 1
And connect with the main control module 1 overcurrent protection mould group 2, voltage protection mould group 3 and move back throw protective module 4, the overcurrent
Protection mould group 2 is used to acquire the three-phase electricity flow valuve of transformer, and is transmitted to the main control module 1, and the main control module 1 is by electric current
Value with storage protection definite value be compared, if meeting protection act condition, the main control module 1 can be chosen tripping and
Alarm, the voltage protection mould group 3 are used to acquire the voltage value of transformer, and are transmitted to the main control module 1, the master control mould
Voltage value is compared by block 1 with the protection definite value of storage, if meeting protection act condition, the main control module 1 can be carried out
Selection tripping and alarm, it is described move back throw that protective module 4 is used to control route move back throwings, and be controlled by the main control module 1, execution
The main control module 1 moves back throwing order；The overcurrent protection mould group includes three-stage specified time overcurrent protection module 21 and zero sequence
Definite time protection module 22, the three-stage specified time overcurrent protection module 21 are used to carry out each section of electric current and time definite value only
Vertical adjusting, and it is transmitted to the main control module 1, current value is compared by the main control module 1 with the protection definite value of storage, if
Meet protection act condition, then the main control module 1 control it is described move back to throw protective module 4 and carry out protection to route move back throwing, it is described
Zero sequence definite time protection module 22 is used for the zero-sequence current value generated when acquiring transformer current imbalance, and is transmitted to the master
Module 1 is controlled, zero-sequence current value is compared by the main control module 1 with the protection definite value of storage, if meeting protection act condition,
Then the main control module 1 control it is described move back to throw protective module 4 and carry out protection to route move back throwing；The voltage protection mould group 3 includes
Under-voltage protection module 31 and over-voltage protection module 32, the under-voltage protection module 31 are same as the voltage of acquisition three-phase circuit
Value, and it is transmitted to the main control module 1, the main control module 1 is compared with the protection definite value of storage, if three line voltages are all
Lower than protection definite value, and any phase has electric current, then the main control module 1 controls the throwing protective module 4 of moving back and protects to circuit
Shield moves back throwing, and the over-voltage protection module 32 is same as the voltage value of acquisition three-phase circuit, and is transmitted to the main control module 1, institute
It states main control module 1 to be compared with the protection definite value of storage, if any voltage between phases is greater than adjusting voltage, the main control module
1 control described in move back throw protective module 4 to circuit carry out protection move back throwing.
Further, it further includes non-ionizing energy loss mould group 6 that the intelligent box, which becomes protection measurement and control integration device 100, described
Non-ionizing energy loss module is transmitted to the main control module 1 for acquiring gas concentration, temperature value and oil pressure value, and described
The standard value of 1 database of main control module compares, if occurring, either signal value is higher, and the main control module 1 controls described
Move back throw protective module 4 to circuit carry out protection move back throwing.
Further, the non-ionizing energy loss mould group 6 include gas monitor module 61 and high temperature monitoring module 62, described watt
This monitoring modular 61 is transmitted to the main control module 1 for monitoring gas concentration, with 1 database of main control module
Standard value compares, if there is protection act condition, 1 control circuit of the main control module output trip signal or alarm letter
Number, until the received numerical value of the main control module 1 is normal；The high temperature monitoring module 62 is for the temperature inside monitoring case change
Value, and it is transmitted to the main control module 1, it is compared with the standard value of 1 database of main control module, if there is protection act
Condition, then 1 control circuit of main control module exports trip signal or alarm signal, until the received number of the main control module 1
Value is normal.
Further, the non-ionizing energy loss mould group 6 further includes oil pressure monitoring modular 63, and the oil pressure monitoring modular 63 is used
In monitoring oil level and oil pressure, and it is transmitted to the main control module 1, is compared with the standard value of 1 database of main control module,
If there is protection act condition, 1 control circuit of main control module is tripped or is alerted.
Further, the non-ionizing energy loss mould group 6 further includes extension non-ionizing energy loss module 64, the extension non electrical quantity
Protective module 64 is acted for selection in tripping or alarm, receives the trip signal and alarm signal of the main control module 1, and protect
Signal to the extension non electrical quantity malfunction is held to release.
In the present embodiment, the non-ionizing energy loss mould group 6 is equipped with gas monitor module 61, including grave gas trips
(5X1), light gas alert (5X2), are equipped with the high temperature monitoring module 62, including superhigh temperature tripping (5X3), high temperature alarm protection
(5X4) is equipped with the oil pressure monitoring modular 63, including oil level abnormal (5X5), pressure anomaly alarm protection (5X6), works as non electrical quantity
If non electrical quantity malfunction always exists after tripping or alarm, trip signal or alarm signal are always maintained at, Zhi Daofei
Electricity malfunction releases, and can fall tripping or alarm signal with involution by reset key, wherein oil level exception and pressure anomaly are optional
Select tripping or alarm, device is additionally provided with four tunnels extension non-ionizing energy loss, movement may be selected in tripping or alarm, and outlet delay can be with
Adjusting, after the extension non-ionizing energy loss module 64 trips or alerts, if extension non electrical quantity malfunction always exists,
Then trip signal or alarm signal are always maintained at, and until extension non electrical quantity malfunction releases, alarm signal disappears automatically, by multiple
Key is returned trip signal involution can just to be fallen, by the way that the non-ionizing energy loss module and extension non-ionizing energy loss module 64 is arranged,
Long-range non-ionizing energy loss is carried out to transformer, guarantees the normal operation of box type transformation device.
Embodiment 4:
Referring to Fig. 1, the present invention provides a kind of intelligent boxes to become protection measurement and control integration device 100, including main control module 1
And connect with the main control module 1 overcurrent protection mould group 2, voltage protection mould group 3 and move back throw protective module 4, the overcurrent
Protection mould group 2 is used to acquire the three-phase electricity flow valuve of transformer, and is transmitted to the main control module 1, and the main control module 1 is by electric current
Value with storage protection definite value be compared, if meeting protection act condition, the main control module 1 can be chosen tripping and
Alarm, the voltage protection mould group 3 are used to acquire the voltage value of transformer, and are transmitted to the main control module 1, the master control mould
Voltage value is compared by block 1 with the protection definite value of storage, if meeting protection act condition, the main control module 1 can be carried out
Selection tripping and alarm, it is described move back throw that protective module 4 is used to control route move back throwings, and be controlled by the main control module 1, execution
The main control module 1 moves back throwing order；The overcurrent protection mould group includes three-stage specified time overcurrent protection module 21 and zero sequence
Definite time protection module 22, the three-stage specified time overcurrent protection module 21 are used to carry out each section of electric current and time definite value only
Vertical adjusting, and it is transmitted to the main control module 1, current value is compared by the main control module 1 with the protection definite value of storage, if
Meet protection act condition, then the main control module 1 control it is described move back to throw protective module 4 and carry out protection to route move back throwing, it is described
Zero sequence definite time protection module 22 is used for the zero-sequence current value generated when acquiring transformer current imbalance, and is transmitted to the master
Module 1 is controlled, zero-sequence current value is compared by the main control module 1 with the protection definite value of storage, if meeting protection act condition,
Then the main control module 1 control it is described move back to throw protective module 4 and carry out protection to route move back throwing；The voltage protection mould group 3 includes
Under-voltage protection module 31 and over-voltage protection module 32, the under-voltage protection module 31 are same as the voltage of acquisition three-phase circuit
Value, and it is transmitted to the main control module 1, the main control module 1 is compared with the protection definite value of storage, if three line voltages are all
Lower than protection definite value, and any phase has electric current, then the main control module 1 controls the throwing protective module 4 of moving back and protects to circuit
Shield moves back throwing, and the over-voltage protection module 32 is same as the voltage value of acquisition three-phase circuit, and is transmitted to the main control module 1, institute
It states main control module 1 to be compared with the protection definite value of storage, if any voltage between phases is greater than adjusting voltage, the main control module
1 control described in move back throw protective module 4 to circuit carry out protection move back throwing.
Further, it further includes plant failure alarm module 7, institute that the intelligent box, which becomes protection measurement and control integration device 100,
Plant failure alarm module 7 is stated for receiving the control information of the main control module 1, and is alerted, while latch-up protection.
In the present embodiment, described device fault warning module 7 (outputs failure, A/D event in the hardware failure of device
Barrier etc.), the LCD of device can show fault message, and driving device alarm relay, while latch-up protection, handle failure
Afterwards, after re-powering, so that it may warning light involution be fallen, so can remotely show failure and the alarm of power transformation device, convenient for operation
Personnel have found that failure is handled in time, guarantee the normal operation of box type transformation device.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and weighs according to the present invention
Benefit requires made equivalent variations, still belongs to the scope covered by the invention.
Claims (9)
1. a kind of intelligent box becomes protection measurement and control integration device, which is characterized in that including main control module and with the master control mould
The overcurrent protection mould group of block connection and moves back throwing protective module at voltage protection mould group；
The overcurrent protection mould group is used to acquire the three-phase electricity flow valuve of transformer, and is transmitted to the main control module；The master control
Current value is compared by module with the protection definite value of storage, if meeting protection act condition, the main control module can be carried out
Selection tripping and alarm；The voltage protection mould group is used to acquire the voltage value of transformer, and is transmitted to the main control module, institute
It states main control module and is compared voltage value with the protection definite value of storage, if meeting protection act condition, the main control module
It can be chosen tripping and alarm；It is described move back throw that protective module is used to control route move back throwing, and be controlled by the main control module,
Execute the main control module moves back throwing order；
The overcurrent protection mould group includes three-stage specified time overcurrent protection module and zero sequence definite time protection module, and described three sections
Formula definites time-lag overcurrent protection module and is used to carry out independent adjusting to each section of electric current and time definite value, and is transmitted to the master control mould
Block, current value is compared by the main control module with the protection definite value of storage, if meeting protection act condition, the master control
Module control described in move back throw protective module to route carry out protection move back throwing；The zero sequence definite time protection module is for acquiring transformation
The zero-sequence current value generated when device current imbalance, and be transmitted to the main control module, the main control module is by zero-sequence current value
It is compared with the protection definite value of storage, if meeting protection act condition, moves back to insure described in the main control module control and protect mould
Block carries out protection to route and moves back throwing；
The voltage protection mould group includes under-voltage protection module and over-voltage protection module, and the under-voltage protection module is same as
The voltage value of three-phase circuit is acquired, and is transmitted to the main control module, the protection definite value of the main control module and storage is compared
Compared with if three line voltages below protect definite value, and any phase has electric current, then moves back to insure described in the main control module control and protect mould
Block carries out protection to circuit and moves back throwing；The over-voltage protection module is same as the voltage value of acquisition three-phase circuit, and is transmitted to described
Main control module, the main control module are compared with the protection definite value of storage, if any voltage between phases is greater than adjusting voltage, institute
State moved back described in main control module control throw protective module to circuit carry out protection move back throwing.
2. intelligent box as described in claim 1 becomes protection measurement and control integration device, which is characterized in that
The under-voltage protection module includes low-voltage measuring unit and amperometric determination unit, and the low-voltage measuring unit is used for
The voltage value of three-phase circuit is acquired, and is transmitted to the main control module, the protection definite value of the main control module and storage is compared
Compared with；Meanwhile the amperometric determination unit is used to monitor the current value of three-phase circuit, and is transmitted to the main control module, the master
The current switching for controlling module decision circuitry, when three line voltages are below definite value, and any phase has electric current, and delay time arrives, institute
State moved back described in main control module control throw protective module to circuit carry out protection move back throwing.
3. intelligent box as described in claim 1 becomes protection measurement and control integration device, which is characterized in that
It further includes analog input mould group that the intelligent box, which becomes protection measurement and control integration device, and the analog input mould group is used for
Electrical power, electric energy and the capacitor that remote collection case becomes, and it is transmitted to the main control module, calculate the electricity of individual channel.
4. intelligent box as claimed in claim 3 becomes protection measurement and control integration device, which is characterized in that
The analog input mould group includes telemetry module and subsidiary module, and the telemetry module becomes for remote collection case
Electrical power, electric energy and capacitor, and be transmitted to the main control module, calculate the electricity of three accesses；The subsidiary
Module is used for the input of direct current telemetering amount, and is transmitted to the main control module.
5. intelligent box as described in claim 1 becomes protection measurement and control integration device, which is characterized in that
It further includes non-ionizing energy loss mould group that the intelligent box, which becomes protection measurement and control integration device, and the non-ionizing energy loss module is used for
Gas concentration, temperature value and oil pressure value are acquired, and is transmitted to the main control module, the standard with the main control module database
Value compares, if it is higher either signal value occur, moves back described in the main control module control and throws protective module and carry out to circuit
Throwing is moved back in protection.
6. intelligent box as claimed in claim 5 becomes protection measurement and control integration device, which is characterized in that
The non-ionizing energy loss mould group includes gas monitor module and high temperature monitoring module, and the gas monitor module is for monitoring
Gas concentration, and it is transmitted to the main control module, it is compared with the standard value of the main control module database, if protecting
Operation condition is protected, then the main control module control circuit output trip signal or alarm signal, until the main control module receives
Numerical value it is normal；The high temperature monitoring module is transmitted to the main control module for the temperature value inside monitoring case change, with institute
The standard value for stating main control module database compares, if there is protection act condition, the main control module control circuit is defeated
Trip signal or alarm signal out, until the received numerical value of the main control module is normal.
7. intelligent box as claimed in claim 6 becomes protection measurement and control integration device, which is characterized in that
The non-ionizing energy loss mould group further includes oil pressure monitoring modular, and the oil pressure monitoring modular is used to monitor oil level and oil pressure,
And it is transmitted to the main control module, and it is compared with the standard value of the main control module database, if there is protection act condition,
Then the main control module control circuit is tripped or is alerted.
8. intelligent box as claimed in claim 7 becomes protection measurement and control integration device, which is characterized in that
The non-ionizing energy loss mould group further includes extension non-ionizing energy loss module, and the extension non-ionizing energy loss module is for selecting
It acts in tripping or alarm, receives the trip signal and alarm signal of the main control module, and keep signal non-to the extension
Electricity malfunction releases.
9. intelligent box as described in claim 1 becomes protection measurement and control integration device, which is characterized in that
It further includes plant failure alarm module, described device fault warning module that the intelligent box, which becomes protection measurement and control integration device,
For receiving the control information of the main control module, and alerted, while latch-up protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695523.5A CN110350490A (en) | 2019-07-30 | 2019-07-30 | Intelligent box becomes protection measurement and control integration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695523.5A CN110350490A (en) | 2019-07-30 | 2019-07-30 | Intelligent box becomes protection measurement and control integration device |
Publications (1)
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| CN110350490A true CN110350490A (en) | 2019-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910695523.5A Pending CN110350490A (en) | 2019-07-30 | 2019-07-30 | Intelligent box becomes protection measurement and control integration device |
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| Country | Link |
|---|---|
| CN (1) | CN110350490A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206211518U (en) * | 2016-08-31 | 2017-05-31 | 宁波天安智能电网科技股份有限公司 | A kind of photovoltaic case becomes uses comprehensive monitoring protection system |
| CN107453338A (en) * | 2017-09-11 | 2017-12-08 | 湖南长高思瑞自动化有限公司 | The protection investigating method and system of a kind of photovoltaic plant |
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2019
- 2019-07-30 CN CN201910695523.5A patent/CN110350490A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206211518U (en) * | 2016-08-31 | 2017-05-31 | 宁波天安智能电网科技股份有限公司 | A kind of photovoltaic case becomes uses comprehensive monitoring protection system |
| CN107453338A (en) * | 2017-09-11 | 2017-12-08 | 湖南长高思瑞自动化有限公司 | The protection investigating method and system of a kind of photovoltaic plant |
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Application publication date: 20191018 |