CN202190084U - Automatic transformer switching device of power transmitting system - Google Patents
Automatic transformer switching device of power transmitting system Download PDFInfo
- Publication number
- CN202190084U CN202190084U CN2011203044075U CN201120304407U CN202190084U CN 202190084 U CN202190084 U CN 202190084U CN 2011203044075 U CN2011203044075 U CN 2011203044075U CN 201120304407 U CN201120304407 U CN 201120304407U CN 202190084 U CN202190084 U CN 202190084U
- Authority
- CN
- China
- Prior art keywords
- transformer
- circuit breaker
- circuit
- automatic switching
- electric power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model belongs to the technical field of power transmitting systems, and relates to an automatic transformer switching device. In the existing power transmitting system, a circuit structure that two transformers run in parallel is selected, and an automatic switching function software and hardware module is arranged in a control system so as to form an automatic switching control system device; a first transformer and a second transformer are connected into a power transmitting circuit in parallel; the output end of the first transformer is connected with a fourth circuit breaker in series and then is connected with a user power supply circuit; a first circuit breaker is connected between the input end of the second transformer and the power supply circuit in series; the output end of the second transformer is connected with a second circuit breaker in series and then is connected with the user power supply circuit; a third circuit breaker is in serial-in bridge joint between the fourth circuit breaker and the second circuit breaker; and the first and second transformers are independently or jointly connected with the user power supply circuit respectively so as to realize the automatic switching function of the two transformers. The automatic transformer switching device has a simple structure, runs reliably, is long in service life, saves energy, and can be used for improvement and function enhancement of the current power transmitting system.
Description
Technical field:
The utility model belongs to the transformer running technology field of electric power transport system, relates to a kind of transformer automatic switching device of economical operation formula electric power transport system.
Background technology:
The transformer economic operation formula automatic switching device of existing electric power transport system based on load prediction; Structurally also have than big difference from the automation switching; Particularly on the automatic switching function, have very big progressive space; Such as in that only no-load loss, short circuit loss, the apparent power of input transformer just can be calculated the economical operation point voluntarily; And in the selection of the point of economical operation, lacking the language function of hysteresis principle, the stability that has strengthened system's operation awaits further to improve.The dual transformer powering mode is generally adopted in power supply in the employed electric power transport system in various places at present; During normal the operation; Two transformer difference powering loads are provided with the low voltage liaison net switch, when a transformer breaks down between the two-way load; The low voltage liaison net switch closes a floodgate, and gives all electric by the transformer of another normal operation; And for guaranteeing power supply reliability, every transformer capacity is all pressed the total load amount and is calculated; In actual motion; The electricity consumption sub-district follow season and the time has than great fluctuation process with electric loading, the intraday morning, noon and afternoon, three time period power loads were bigger, remaining time transformer is in the light running state mostly; If two transformers all are in running status, loss of energy electric energy.End is got up, and in the existing power transport system, the automatic switching of transformer exists the equipment complex connection, and the switching reliability is difficult for guaranteeing that energy loss is big that transformer is short useful life, shortcomings such as waste of manpower financial resources and material resources.
Summary of the invention:
The goal of the invention of the utility model is to overcome the shortcoming that prior art exists; Seek a kind of electric power transport system of designing and preparing transformer economic operation formula automatic switching device; Realization is automaticallyed switch based on the transformer of load, thereby makes transformer run on the economical operation state automatically.
To achieve these goals; The complete machine syndeton of the utility model is in the existing power transport system, to select the circuit structure of two transformer parallel runnings for use; In the Control Software of electric power transport system and hardware, place the software content and the hardware device module of automatic switching function again, formation can realize transformer automatic switching formula control system device in the electric power transport system; The parallel electric power that inserts of first transformer and second transformer transports in the circuit, and the output of first transformer connects user supply line after being connected in series the 4th circuit breaker; Be connected in series first circuit breaker between the input of second transformer and the supply line, the output of second transformer connects user supply line after being connected in series second circuit breaker, between the 4th circuit breaker and second circuit breaker, seals in formula cross-over connection the 3rd circuit breaker; First transformer and second transformer are electrically connected with user supply line separately respectively, or are electrically connected with user supply line jointly, realize two Transformer Economic operation type automatic switching effects.
The utility model is according to the transformer of different model and different capabilities; Transport adding automatic switching software support module in the control system at electric power; Input parameter calculates critical point automatically in software; The CPU of automatic switching device adopts 32 bit DSP digital signal processor TMSF2811, interrelates as the cpu motherboard of core component and other card and accomplishes the function of AD conversion, switch acquisition, switching value output, man-machine interface control, EEPROM access, clock access, Communication Control and inhibition magnetizing inrush current; Its cpu motherboard adopts four layers of printed panel and surface packaging technique; Open entering plate and comprise the switching value input processing circuit, the switching value input processing circuit is accomplished the preliminary treatment that 12 way switch amounts are gathered; Related open into amount comprise the not energy storage of the position of the switch, spring, control loop broken string, remote operation locking, locking reclosing and subsequent use open into; SAMPLE sampling plate plug-in unit comprises instrument transformer plate and signal regulating panel; Completion is to by the sensing of protection and the alternating voltage of control circuit and electric current and nurse one's health and processing and amplifying; Convert the AC signal of electric power mutual-inductor to meet AD modular converter input range (0-3V) voltage signal, accomplish digital-to-analogue conversion by the AD modular converter; Power panel comprises power circuit, and power circuit comprises switching value input and output usefulness+24V power supply, CPU and display panel used+5V power supply for the automation switching device provides low-voltage dc power supply; Communication module is integrated in the DSP control board, realizes between the variant automatic switching device and communication of data between automatic switching device and the controlling platform, be convenient to the operation and the management of whole system.
Step when the utility model is realized automatic switching is:
1. connect the circuit of electric power transport system, make two transformers drop into powered operation;
2. respectively the voltage and current value in the transformer circuit is sampled;
3. according to the voltage and current value of institute's sampled value, judge whether automatic switching,, then return step 2., sample again as not needing automatic switching by critical point value requirement; Automatic switching then the 3rd is thrown circuit breaker and Returning switch state if desired;
4. judge whether the 3rd circuit breaker puts into operation, if do not put into operation, then reports to the police,, then cut off second circuit breaker if the 3rd circuit breaker puts into operation;
5. judge whether second circuit breaker excises,, then report to the police, simultaneously, cut off the 3rd circuit breaker and Returning switch state, judge then whether the 3rd circuit breaker excises, if do not have excision then warning if do not have excision; If second circuit breaker excises, then excise first circuit breaker again;
6. judge whether first circuit breaker excises,, then prepare the transformer excision if excise; The excision if first circuit breaker is failed is then reported to the police, and simultaneously, close second circuit breaker and Returning switch state are if second circuit breaker is failed to close a floodgate then reported to the police; If second circuit breaker closes and the Returning switch state, then cut off the 3rd circuit breaker and Returning switch state, judge simultaneously whether the 3rd circuit breaker excises, then do not report to the police as having excision.
The utility model compared with prior art can realize that transformer based in the electric power transport system in the automatic switching function of load, makes transformer be in the economical operation state, reduces the power system operation cost, uses manpower and material resources sparingly simultaneously; The application of sluggish principle has strengthened the success rate and the reliability of automatic switching; Its overall structure is simple, and connection and economical operation are reliable, safety and stability, and service life is long, saves the energy, can be widely used in the improvement of existing electric power transport system and the raising of function.
Description of drawings:
Fig. 1 is the complete machine syndeton principle schematic of the utility model, comprises first transformer 1, second transformer 2, first circuit breaker 3, second circuit breaker 4, the 3rd circuit breaker 5 and the 4th circuit breaker 6.
Fig. 2 realizes the workflow schematic block diagram of automatic switching for the utility model.
Embodiment:
Below through embodiment and combine accompanying drawing to further specify.
Embodiment:
The complete machine syndeton of present embodiment is in the existing power transport system, to select the circuit structure of two transformer parallel runnings for use; In the Control Software of electric power transport system and hardware, place corresponding software content and hardware device module, formation can realize the control system of transformer automatic switching formula in the electric power transport system; First transformer 1 and second transformer, the 2 parallel electric power that insert transport in the circuit; The output of first transformer 1 is connected in series the 4th circuit breaker 6 backs and connects user supply line; Be connected in series first circuit breaker 3 between the input of second transformer 2 and the supply line; The output of second transformer 2 is connected in series second circuit breaker, 4 backs and connects user supply line, between the 4th circuit breaker 6 and second circuit breaker 4, seals in formula cross-over connection the 3rd circuit breaker 5; First transformer 1 and second transformer 2 can be distinguished separately and be electrically connected with user supply line, or are electrically connected with user supply line jointly, realize two Transformer Economic operation type automatic switching effects; Transformer according to different model and different capabilities; Transport adding automatic switching software support module in the control system at electric power; The input Several Parameters is calculated critical point automatically in software; The CPU of automatic switching device adopts 32 bit DSP digital signal processor TMSF2811, as the cpu motherboard of core component and other card functions such as accomplishing AD conversion, switch acquisition, switching value output, man-machine interface control, EEPROM access, clock access, Communication Control and inhibition magnetizing inrush current that interrelates; Its cpu motherboard adopts four layers of printed panel and surface packaging technique; Open entering plate and comprise the switching value input processing circuit, the switching value input processing circuit is accomplished the preliminary treatment that 12 way switch amounts are gathered; Related open into amount comprise the not energy storage of the position of the switch, spring, control loop broken string, remote operation locking, locking reclosing and subsequent use open into; SAMPLE sampling plate plug-in unit comprises instrument transformer plate and signal regulating panel; Completion is to by the sensing of protection and the alternating voltage of control circuit and electric current and nurse one's health and processing and amplifying; Convert the AC signal of electric power mutual-inductor to meet AD modular converter input range (0-3V) voltage signal, accomplish digital-to-analogue conversion by the AD modular converter; Power panel comprises power circuit, and power circuit comprises switching value input and output usefulness+24V power supply, CPU and display panel used+5V power supply for the automation switching device provides low-voltage dc power supply; Communication module is integrated in the DSP control board, realizes between the variant automatic switching device, and communication of data between automatic switching device and the controlling platform, be convenient to the operation and the management of whole system.
Step when present embodiment is realized automatic switching is:
1. connect the circuit of electric power transport system, make two transformers drop into powered operation;
2. respectively the voltage and current value in the transformer circuit is sampled;
3. according to the voltage and current value of institute's sampled value, judge whether automatic switching,, then return step 2., sample again as not needing automatic switching by critical point value requirement; Automatic switching is then thrown the 3rd circuit breaker 5 and Returning switch state if desired;
4. judge whether the 3rd circuit breaker 5 puts into operation, if do not put into operation, then reports to the police, if the 3rd circuit breaker 5 has put into operation, then cuts off second circuit breaker 4;
5. judge whether second circuit breaker 4 excises,, simultaneously, cut off the 3rd circuit breaker 5 and Returning switch state, judge then whether the 3rd circuit breaker 5 excises, if do not have excision then warning if no excision is then reported to the police; If second circuit breaker 4 has excised, then excise first circuit breaker 3 again;
6. judge whether first circuit breaker 3 excises,, then prepare the transformer excision if excise; The excision if first circuit breaker 3 is failed is then reported to the police, and simultaneously, second circuit breaker 4 and the Returning switch state that close is if second circuit breaker 4 is failed to close a floodgate then reported to the police; If second circuit breaker 4 closes and the Returning switch state, then cut off the 3rd circuit breaker 5 and Returning switch state, judge simultaneously whether the 3rd circuit breaker 5 excises, then do not report to the police as having excision.
Claims (1)
1. the transformer automatic switching device of an electric power transport system; The complete machine syndeton is in the existing power transport system, to select the circuit structure of two transformer parallel runnings for use; In the Control Software of electric power transport system and hardware, place the software content and the hardware device module of automatic switching function again, formation can realize transformer automatic switching formula control system device in the electric power transport system; It is characterized in that the parallel electric power that inserts of first transformer and second transformer transports in the circuit, the output of first transformer connects user supply line after being connected in series the 4th circuit breaker; Be connected in series first circuit breaker between the input of second transformer and the supply line, the output of second transformer connects user supply line after being connected in series second circuit breaker, between the 4th circuit breaker and second circuit breaker, seals in formula cross-over connection the 3rd circuit breaker; First transformer and second transformer are electrically connected with user supply line separately respectively, or are electrically connected with user supply line jointly, realize two Transformer Economic operation type automatic switching effects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203044075U CN202190084U (en) | 2011-08-19 | 2011-08-19 | Automatic transformer switching device of power transmitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203044075U CN202190084U (en) | 2011-08-19 | 2011-08-19 | Automatic transformer switching device of power transmitting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202190084U true CN202190084U (en) | 2012-04-11 |
Family
ID=45921517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203044075U Expired - Lifetime CN202190084U (en) | 2011-08-19 | 2011-08-19 | Automatic transformer switching device of power transmitting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202190084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255338A (en) * | 2011-08-19 | 2011-11-23 | 青岛特锐德电气股份有限公司 | Transformer automatic switching device for power transmission system |
-
2011
- 2011-08-19 CN CN2011203044075U patent/CN202190084U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255338A (en) * | 2011-08-19 | 2011-11-23 | 青岛特锐德电气股份有限公司 | Transformer automatic switching device for power transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102255338A (en) | Transformer automatic switching device for power transmission system | |
| CN102148529B (en) | Control device and control method thereof for intelligently supplying power to circuit breaker control unit | |
| CN201276024Y (en) | Auxiliary control unit of power distributed motor train unit | |
| CN201750208U (en) | Double-power-supply automatic shifting circuit of embedded device with standby storage battery | |
| CN205681181U (en) | A kind of Dual-power automatic switching controller | |
| CN200944539Y (en) | Automatic change-over controller of double power supply | |
| CN104979895A (en) | Intelligent digital dual-power switching system | |
| CN105322549A (en) | Low-voltage intelligent voltage-regulating and voltage-stabilizing system | |
| CN203368356U (en) | Power supply circuit and television | |
| CN201766346U (en) | Intelligent integrated protector for motor | |
| CN201994717U (en) | Control device for supplying power to breaker control units | |
| CN205195276U (en) | Low pressure intelligent voltage adjustment steady voltage system | |
| CN101351069B (en) | Illumination energy-saving apparatus for primary contactless voltage-regulating of transformer | |
| CN202190084U (en) | Automatic transformer switching device of power transmitting system | |
| CN103872792A (en) | Current transformer online powering device | |
| CN201503462U (en) | Dispersion-type fault alarm unit of LED signal controller | |
| CN204425037U (en) | A kind of maintenance-free high frequence Switching Power Supply DC power cabinet | |
| CN202282646U (en) | Control system used for outdoor pole top switch | |
| CN105262094A (en) | Low-voltage intelligent voltage adjusting and stabilizing system with handheld terminal | |
| CN204669406U (en) | A kind of UPS intelligent monitor system | |
| CN204809977U (en) | Digital double power shift system of intelligence | |
| CN102290813A (en) | No-load cutting-in/out method for suppressing inrush currents of transformer | |
| CN202840292U (en) | Intelligent power saving incoming line main cabinet | |
| CN210669620U (en) | Electric energy meter control system with double-loop power supply | |
| CN201341040Y (en) | Remote control high-voltage switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120411 |
|
| CX01 | Expiry of patent term |