CN203722244U - Compensating capacitor tower PLC control and detection system used in oil immersed transformer temperature rise experiment - Google Patents
Compensating capacitor tower PLC control and detection system used in oil immersed transformer temperature rise experiment Download PDFInfo
- Publication number
- CN203722244U CN203722244U CN201420073738.6U CN201420073738U CN203722244U CN 203722244 U CN203722244 U CN 203722244U CN 201420073738 U CN201420073738 U CN 201420073738U CN 203722244 U CN203722244 U CN 203722244U
- Authority
- CN
- China
- Prior art keywords
- pneumatic
- plc controller
- switch
- temperature rise
- isolating switch
- 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 - Fee Related
Links
Classifications
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a compensating capacitor tower PLC control and detection system used in oil immersed transformer temperature rise experiment. The system comprises a plurality of disconnecting switches which are arranged on the capacitor tower for controlling capacitor switching. The system is characterized in that a PLC controller is further provided, the PLC controller is in wireless connection with a remote control computer or receives a control instruction through a local touch screen, the signal output end of the PLC controller is connected with pneumatic solenoid valves through a plurality of intermediate relays separately, the disconnecting switches are pneumatic disconnecting switches, the pneumatic solenoid valves are arranged on air ducts on which corresponding pneumatic disconnecting switches are located, each pneumatic disconnecting switch is provided with a pneumatic mechanical control valve for detecting the switch-on and switch-off state of the pneumatic disconnecting switch separately, each air duct is additionally provided with a pneumatic pressure switch for detecting the gas path on/off state, and the pneumatic pressure switch is eclectically connected with the signal input end of the PLC controller. When an existing capacitor tower is controlled through a manual disconnecting switch, problems of complex wiring, large occupied area, easy mistake making and insecurity exist; and according to the utility model, the problems can be solved.
Description
Technical field
The utility model relates to the regulator control system, particularly a kind of oil-immersed type transformer temperature rise experiment of compensation condenser tower capacity and electric pressure in oil-immersed type transformer temperature rise experiment and controls and detection system with compensation condenser tower PLC.
Background technology
High-power transformer product conventionally will carry out temperature rise test and just can come into operation, and transformer is under condition of work during through-put power, and itself will consume a part of electric energy, and this part electric energy is exactly no-load loss and load loss.Electric energy conversion becomes heat energy, and the temperature of power transformation depressor is raise.For the temperature rise of transformer is controlled in certain limit, structurally adopted the method that increases radiating surface.The object of temperature rise test, will determine exactly the temperature rise of each parts of transformer and verify design data, determines whether its temperature rise meets related standards prescribed limits.Because this experiment capacity is large, power factor is low, directly utilize mains supply can cause power quality to decline, therefore most of manufacturers adopt the power supply of testing electricity generation unit, active loss when unit capacity is mainly pressed load and temperature rise test is considered, so capacity is less, and expands power supply capacity, expense is high, investment difficulty.The electric current majority that is input to test product during test is perceptual reactive current, adopts capacitance compensation can reduce the output capacity of experiment power supply, and makes test product electric current reach test requirements document.
The test method of transformer temperature rise has multiple, such as direct load method, mutual load method, circulating current method, zero sequence method, short-circuit method.Long-time test experience and test data proof oil-immersed type transformer generally all adopt short-circuit method.Short-circuit method is exactly by a side short circuit of transformer, opposite side power supply, and test circuit is completely identical with load test.In test, only have heating in winding, iron core substantially not to generate heat, the total losses that can send with winding heat oil, make up the substantially athermic shortcoming of iron core.Oil-immersed type transformer temperature rise unshakable in one's determination finally will be reflected in oily temperature rise, and the temperature rise on structural member, also by being reflected in oily temperature rise, in the situation that there is no local overheating, is only examined just passable to the temperature rise of oil and winding.Therefore, oil-immersed type transformer is to access satisfied temperature rise data with short-circuit method test.
In short-circuit method test, capacitor tower compensated position determines in the high-pressure side of intermediate experiment transformer it is most economical, rational scheme.The structure of capacitor tower is generally divided into three pylon structures simultaneously, is respectively A, B, C three-phase, every four-layer structure that is divided into mutually, and every one deck is one-level, every grade of Parallel-connected Capacitor, but every grade of capacitor is divided into again some groups.Every group capacitor drops into and exits by isolator operation and completes, and the capacitor of every grade of input is adjustable.But there are the following problems for it: isolating switch is Manual isolation switch, and its wiring is complicated, floor space is large, needs manually to climb to capacitor tower operate or utilize insulated hook operation simultaneously, easily makes mistakes, dangerous.
Summary of the invention
The purpose of this utility model be for provide a kind of when solving existing capacitor tower and adopting Manual isolation switch to control complicated, the floor space of wiring greatly, easily make mistakes, the oil-immersed type transformer temperature rise experiment of unsafe problem controls and detection system with compensation condenser tower PLC.
The technical solution of the utility model is:
A kind of oil-immersed type transformer temperature rise experiment is controlled and detection system with compensation condenser tower PLC, comprise the isolating switch of being located at a plurality of control capacitance switchings on capacitor tower, its special character is: be also provided with PLC controller, a described PLC controller wireless connections distant place is controlled computer or is utilized local touch-screen to accept control command, the signal output part of described PLC controller connects respectively air-operated solenoid valve by a plurality of auxiliary relays, described isolating switch is Pneumatic isolating switch, described air-operated solenoid valve is located at respectively on the wireway at corresponding Pneumatic isolating switch place and is controlled its on off operating mode, on described Pneumatic isolating switch, be equiped with respectively the pneumatic motor control valve that detects its on off state, on described wireway, be separately provided with the Pneumatic pressure switch that detects gas path on-off, described Pneumatic pressure switch is electrically connected to the signal input part of described PLC controller.
Above-mentioned oil-immersed type transformer temperature rise experiment is controlled and detection system with compensation condenser tower PLC, described PLC controller, local touch-screen and a plurality of auxiliary relay are integrated on same PLC control cubicle, a plurality of described air-operated solenoid valves are integrated in same air-operated solenoid valve output counter, and a plurality of described Pneumatic pressure switchs are integrated in same pneumatic knife gate position detecting box.
The beneficial effects of the utility model are:
1, because adopting PLC controller, capacitor tower controls Pneumatic isolating switch, during use, operating personnel control in the distance computer or utilize local touch-screen input operation combined code or test voltage, capacity, the parameter such as the number of phases and frequency, PLC controller is accepted by controlling the break-make of each air-operated solenoid valve, to control the switch of Pneumatic isolating switch after instruction, to adjust the parameters such as capacitor tower electric pressure and capacity, have easy to operate, wiring is flexible, safe and intelligent, floor space is little, accuracy advantages of higher, meet high-power transformer factory completely and do multiple product capacity and electric pressure transformer temperature rise requirement of experiment.
2, PLC controller receives the folding position state signal of each Pneumatic isolating switch by each Pneumatic pressure switch, thereby the on off state of judgement Pneumatic isolating switch, and this state is uploaded to distant place control computer or utilizes local touch-screen to show, realize in real time and detecting.
3, each Pneumatic isolating switch is all accompanied with two opening and closing state machine control valves, to detect Pneumatic isolating switch opening and closing, carries out the situation that puts in place, has effectively solved the Insulation Problems of switch operating mechanism.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is schematic diagram of the present utility model.
Embodiment
As shown in the figure, this oil-immersed type transformer temperature rise experiment is controlled and detection system with compensation condenser tower PLC, comprise the isolating switch (being disconnecting link) of being located at a plurality of control capacitance switchings on capacitor tower, also be provided with PLC controller 1 simultaneously, a described PLC controller 1 wireless connections distant place is controlled computer 2 or utilizes local touch-screen 3 to accept control command, the signal output part of described PLC controller 1 connects respectively air-operated solenoid valve 5 by a plurality of auxiliary relays 4, described isolating switch is Pneumatic isolating switch 6, described air-operated solenoid valve 5 is located at respectively on the wireway 7 at corresponding Pneumatic isolating switch 6 places and is controlled its on off operating mode, on described Pneumatic isolating switch 6, be equiped with respectively the pneumatic motor control valve 8 that detects its on off state, on described wireway 7, be separately provided with the Pneumatic pressure switch 9 that detects gas path on-off, described Pneumatic pressure switch 9 is electrically connected to the signal input part of described PLC controller 1.
Described PLC controller 1, local touch-screen 3 and a plurality of auxiliary relay 4 are integrated on same PLC control cubicle 10, a plurality of described air-operated solenoid valves 5 are integrated in same air-operated solenoid valve output counter 11, and a plurality of described Pneumatic pressure switchs 9 are integrated in same pneumatic knife gate position detecting box 12.
The course of work:
PLC controller 1 is accepted a distant place and is controlled after the control command of computer 2 or local touch-screen 3, by auxiliary relay 4, exports air-operated solenoid valve to, is controlled the switch of Pneumatic isolating switch (disconnecting link) 6 by the break-make of controlling air-operated solenoid valve 5; The on off state of disconnecting link is controlled the break-make of tracheae 7 sources of the gas by the pneumatic motor control valve 8 being contained on disconnecting link again, then detects gas path on-off by Pneumatic pressure switch 9, thereby changes disconnecting link folding location status into the signal of telecommunication, inputs to PLC controller 1; PLC controller 1 judges that according to input state signal condition disconnecting link closes a floodgate, gate-dividing state, and this state is uploaded to distant place control computer 2 and local touch-screen 3, in corresponding picture, is showing.
Claims (2)
1. an oil-immersed type transformer temperature rise experiment is controlled and detection system with compensation condenser tower PLC, comprise the isolating switch of being located at a plurality of control capacitance switchings on capacitor tower, it is characterized in that: be also provided with PLC controller, a described PLC controller wireless connections distant place is controlled computer or is utilized local touch-screen to accept control command, the signal output part of described PLC controller connects respectively air-operated solenoid valve by a plurality of auxiliary relays, described isolating switch is Pneumatic isolating switch, described air-operated solenoid valve is located at respectively on the wireway at corresponding Pneumatic isolating switch place and is controlled its on off operating mode, on described Pneumatic isolating switch, be equiped with respectively the pneumatic motor control valve that detects its on off state, on described wireway, be separately provided with the Pneumatic pressure switch that detects gas path on-off, described Pneumatic pressure switch is electrically connected to the signal input part of described PLC controller.
2. oil-immersed type transformer temperature rise experiment according to claim 1 is controlled and detection system with compensation condenser tower PLC, it is characterized in that: described PLC controller, local touch-screen and a plurality of auxiliary relay are integrated on same PLC control cubicle, a plurality of described air-operated solenoid valves are integrated in same air-operated solenoid valve output counter, and a plurality of described Pneumatic pressure switchs are integrated in same pneumatic knife gate position detecting box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073738.6U CN203722244U (en) | 2014-02-21 | 2014-02-21 | Compensating capacitor tower PLC control and detection system used in oil immersed transformer temperature rise experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073738.6U CN203722244U (en) | 2014-02-21 | 2014-02-21 | Compensating capacitor tower PLC control and detection system used in oil immersed transformer temperature rise experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722244U true CN203722244U (en) | 2014-07-16 |
Family
ID=51161370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420073738.6U Expired - Fee Related CN203722244U (en) | 2014-02-21 | 2014-02-21 | Compensating capacitor tower PLC control and detection system used in oil immersed transformer temperature rise experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917214A (en) * | 2019-04-11 | 2019-06-21 | 孟庆安 | A kind of transformer temperature rise test capacitance compensation automatic control system |
-
2014
- 2014-02-21 CN CN201420073738.6U patent/CN203722244U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917214A (en) * | 2019-04-11 | 2019-06-21 | 孟庆安 | A kind of transformer temperature rise test capacitance compensation automatic control system |
| CN109917214B (en) * | 2019-04-11 | 2024-02-06 | 孟庆安 | Automatic control system for capacitance compensation in temperature rise test of transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8811806B2 (en) | Power supply arrangement for direct electrical heating of a pipeline system | |
| CN203277030U (en) | Transformer cooling device | |
| CN104090191A (en) | Loading testing device and method used for frequency converter | |
| CN103457277B (en) | 1140V special intelligent control cabinet | |
| CN203722244U (en) | Compensating capacitor tower PLC control and detection system used in oil immersed transformer temperature rise experiment | |
| CN104898053B (en) | A kind of integrated apparatus of large-scale low-voltage circuit breaker cranking test | |
| CN203553686U (en) | Small-size intelligent prefabricated substation | |
| CN103311833A (en) | Small-size intelligent prefabricated substation | |
| CN203799255U (en) | Control circuit of equipment control cabinet | |
| CN104795203A (en) | Intelligent remote monitoring type power transformer | |
| CN107579593B (en) | Energy supply system of high-voltage direct-current circuit breaker | |
| CN205177562U (en) | Automatic trickle heat sink of main transformer radiator | |
| CN104104021A (en) | Automatic temperature control transformer cabinet | |
| CN204271742U (en) | One has carries Intelligent capacity-adjusting transformer | |
| CN202931185U (en) | Low voltage power on debugging device applied to high voltage frequency converter | |
| CN204156765U (en) | A kind of high-voltage intelligent dynamic compensation soft starter device | |
| CN203415990U (en) | 1140V special intelligent control cabinet | |
| CN202034938U (en) | Compact on-load capacity regulating prefabricated substation | |
| CN203838554U (en) | Aging test system | |
| CN203589733U (en) | Drilling machine grid electricity adaptive double voltage on-load voltage regulating transformer | |
| CN203491700U (en) | Intelligent integrated power capacitor | |
| CN203720677U (en) | Intelligent temperature control device for oil-immersed controllable reactors | |
| CN204441071U (en) | Non-crystaline amorphous metal capacity and pressure regulating transformer | |
| CN203644536U (en) | Power transformer based on detection and control of cellphone module | |
| CN203798137U (en) | Heating control device for furnace body of vertical oxidation furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20160221 |