CN205647006U - Extremely fast combined electrical apparatus that suits - Google Patents
Extremely fast combined electrical apparatus that suits Download PDFInfo
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- CN205647006U CN205647006U CN201620380559.6U CN201620380559U CN205647006U CN 205647006 U CN205647006 U CN 205647006U CN 201620380559 U CN201620380559 U CN 201620380559U CN 205647006 U CN205647006 U CN 205647006U
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- combined electrical
- electrical apparatus
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Abstract
The utility model relates to an extremely fast combined electrical apparatus that suits, the manager comprises a control unit, switch characteristics measurement unit and two sets of HGIS combined electrical apparatuses, all install current transformer and voltage transformer on every set of HGIS combined electrical apparatus, current transformer and voltage transformer all are connected with the control unit's signal input part electricity, the control unit's signal output part connects the circuit breaker operating mechanism's in every set of HGIS combined electrical apparatus divide -shut brake return circuit, whole switching characteristics sampling loop connection of circuit breaker operating mechanism in switch characteristics measurement unit and the every set of HGIS combined electrical apparatus, the signal input part of switch characteristics measurement unit connection control unit, circuit breaker in the every set of HGIS combined electrical apparatus is vacuum circuit breaker, and circuit breaker operating mechanism is the magnetic repulsion operating mechanism. The utility model has the characteristics of switching speed is fast, the switching process is strikeed for a short time to the electric wire netting, reach the low pressure vacuum of high school switch and automatic best cooperation of cutting the device soon.
Description
Technical field
This utility model relates to ultrafast very fast of the automatic switchover combined electrical apparatus of a kind of dual power supply, particularly switch speed and suits combined electrical apparatus.
Background technology
At large size industrial enterprises such as petrochemical industry, iron and steel and collieries, owing to producing continuously and the importance of safety, all can carry out dual power supply configuration in each electric pressure, purpose is exactly under a certain power failure condition, is put into by another power supply, is continued so that producing.For a long time, transformer station is widely used backup auto-activating device or dual power supply handover module to the switching realizing between working power and stand-by power supply.In recent years, become along with the high factory of the power supply rapid switching device station service electrical system in power plant and play the successful Application of switching between standby change, the power supply rapid switching device being specially adapted for Gong Qi transformer station also arises at the historic moment, use to a certain extent is obtained in enterprises such as middle petrochemical industry, operating switch is quickly disconnected in the case of the working power caused because of faults such as thunderbolts disappears, close backup circuit breaker, by in-put of spare power supply to guarantee to produce the uninterrupted operation of load.
Owing to power supply rapid switching device is used only to control the secondary device of chopper deciliter; within the logical operations of itself and response time can accomplish a cycle; but a few tens of milliseconds at least deciliter time of now widely used vacuum circuit breaker; milliseconds the most up to a hundred; can not this makes the power supply handoff procedure time under whole working power failure condition elongate, directly influenced power load and shut down operation in the process.Meanwhile, owing to existing power supply apparatus for fast switching can only control deciliter opportunity of operating switch and backup circuit breaker, can not deciliter time of left-right switch, even if causing handover success because the switch deciliter time is longer, the situation producing load still interrupt run occurs repeatedly.
It is particularly problematic that the problem of above-mentioned existence is brought in low pressure 380V field; catalyst and converter is often used due to low-voltage load; either catalyst or converter; to shaking, electric reaction is the sensitiveest; general busbar voltage continues less than 85% i.e. to disconnect about a cycle, causes load to be shut down；And the branch wire time of the service entrance switch of 380V bus typically will reach about 60 milliseconds, thus no matter power supply rapid switching device logical judgment and response time how soon have, the load guaranteed under incoming power failure condition that all cannot play a role runs without interruption.
For these reasons, the time is short and the very fast combined electrical apparatus that suits that the impact of electrical network and the fluctuation of voltage are the least is necessary by handoff procedure to develop a kind of deciliter, and this case is given birth to therefrom.
Utility model content
This utility model uses controlled having cut-off with controlled switching Technology design very fast to suit combined electrical apparatus, can quick start switching when working power breaks down, and puts into stand-by power supply, shortens excision fault and the overall time of input stand-by power supply.
To achieve these goals, the technical scheme that this utility model is used is:
Very fast suit combined electrical apparatus, including control unit, switching characteristic measuring unit and two set HGIS combined electrical apparatuses, often it is mounted on current transformer and voltage transformer on set HGIS combined electrical apparatus, often the current transformer on set HGIS combined electrical apparatus and voltage transformer all electrically connect with the signal input part of control unit, the signal output part of control unit connects the divide-shut brake loop of the breaker operation mechanism often overlapped in HGIS combined electrical apparatus, switching characteristic measuring unit is connected with whole switching characteristic sampling circuits of the breaker operation mechanism in often set HGIS combined electrical apparatus, switching characteristic measuring unit connects the signal input part of control unit, chopper in described often set HGIS combined electrical apparatus is vacuum circuit breaker, breaker operation mechanism is electromagnetic repulsion force operating mechanism；Described switching characteristic measuring unit for detecting the acting characteristic of HGIS combined electrical apparatus and feed back to control unit, described control unit for judge working power malfunction and in HGIS combined electrical apparatus breaker operation mechanism send divide-shut brake instruction.
Further setting as technique scheme:
The control cable of the breaker operation mechanism of described often set HGIS combined electrical apparatus is drawn from its secondary terminal box or aviation plug, and the outlet of control unit and switching characteristic measuring unit is all drawn from respective secondary terminals row or aviation plug.
The current transformer installed on described often set HGIS combined electrical apparatus and the outlet of voltage transformer are all drawn from respective secondary terminal box.
Described switching characteristic measuring unit includes sensor and the switching input module being respectively arranged on the breaker operation mechanism of often set HGIS combined electrical apparatus, often the sensor on set HGIS combined electrical apparatus is sequentially connected with analogue filter circuit and is connected with A/D module by multiplexer with after sampling hold circuit, A/D module connects the signal input part of MCU module, and switching input module is connected with the signal input part of MCU module by photoelectric isolating circuit.
Described MCU module comprises super I/O chip.
Described switching characteristic measuring unit realizes the transmission of data by parallel interface.
Described control unit includes analogue filter circuit, sampling hold circuit, multiplexer and the A/D module being sequentially connected with the current transformer in often set HGIS combined electrical apparatus and voltage transformer, A/D module connects the signal input part of MCU module, breaker operation mechanism in the signal output part connection of MCU module often set HGIS combined electrical apparatus.
Described control unit all realizes the transmission of data by parallel interface.
Described MCU module comprises super I/O chip.
Described control unit also includes the key-press module that the signal input part with MCU module is connected, and the display module being connected with the signal output part of MCU module.
The very fast intelligences combination electrical equipment that suits that this utility model provides, selects the vacuum circuit breaker of band electromagnetic repulsion force operating mechanism, in conjunction with controlled switching technology, solves the conventional power source slow-footed problem of switching device divide-shut brake；Simultaneously, utilize switching characteristic measuring unit that working power relevant parameter is monitored in real time, the fault-signal of trouble power can be quickly captured in the very first time, and calculate branch wire time accurately by control unit and send divide-shut brake order to breaker operation mechanism, making trouble power at current zero-crossing point moment separating brake, stand-by power supply is at voltage over zero moment asynchronous switch-on.
When this utility model phase selection overcomes tradition switching switch combined floodgate, generation is shoved and the impact of electrical network is affected by overvoltage, phase selection separating brake improves connecting-disconnecting function and the reliability of chopper, also the technical bottleneck that vacuum circuit breaker is applied is breached at high-voltage fence, compared with the switched systems such as existing prepared auto restart, there is subversive advantage, not only can realize " not having a power failure " switching truly, escort for safety, continuously production, it is also possible to reach the best fit of senior middle school's low-voltage vacuum switch and automatization's fast switching device.
Below by way of the drawings and specific embodiments, this utility model is further elaborated.
Accompanying drawing illustrates:
Fig. 1 is structure connection diagram of the present utility model；
Fig. 2 is control principle structured flowchart of the present utility model；
Fig. 3 is the structured flowchart of this utility model switching characteristic measuring unit；
Fig. 4 is the structured flowchart of this utility model control unit.
Detailed description of the invention:
This utility model provides a kind of very fast combined electrical apparatus that suits to replace traditional power supply rapid switching device, has switch speed fast, the feature that handoff procedure is little to electrical network impact.
The technical solution of the utility model is further illustrated below in conjunction with Fig. 1 to Fig. 4, as shown in Figure 1, the very fast combined electrical apparatus that suits includes HGIS combined electrical apparatus 1 and a 2nd HGIS combined electrical apparatus 2, one of them combined electrical apparatus can be connected with work at present power supply, another is connected with stand-by power supply, for convenience of description, the power supply that the 2nd HGIS combined electrical apparatus 2 is connected by the present embodiment is as working power, and the power supply being connected with a HGIS combined electrical apparatus 1 is as stand-by power supply.Wherein, a HGIS combined electrical apparatus 1 includes the first current transformer the 11, first voltage transformer 12 and the first vacuum circuit breaker, and the first breaker operation mechanism 13 is electromagnetic repulsion force operating mechanism；2nd HGIS combined electrical apparatus 2 includes the second current transformer the 21, second voltage transformer 22 and the second vacuum circuit breaker, and the second breaker operation mechanism 23 is electromagnetic repulsion force operating mechanism.The signal input part of whole switching characteristic sampling circuits of the first breaker operation mechanism 13 and whole switching characteristic sampling circuits of the second breaker operation mechanism 23 connecting valve characteristics measurement unit 3 respectively, the signal output part of switching characteristic measuring unit 3 connects the signal input part of control unit 4；First current transformer the 11, first voltage transformer the 12, second current transformer 21 and the second voltage transformer 22 connect the signal input part of control unit 4 respectively, and the signal output part of control unit 4 connects divide-shut brake loop and the divide-shut brake loop of the second breaker operation mechanism 23 of the first breaker operation mechanism 13 respectively.
Connection for convenience of said structure, the control cable of the first breaker operation mechanism 13 and the second breaker operation mechanism 23 is drawn from its secondary terminal box or aviation plug, and the outlet of control unit 4 and switching characteristic measuring unit 3 is also drawn from respective secondary terminals row or aviation plug；The outlet of first current transformer the 11, first voltage transformer the 12, second current transformer 21 and the second voltage transformer 22 is all drawn from the secondary terminal box of respective equipment.
The structure of such scheme breaker in middle characteristics measurement unit 3 is further illustrated in conjunction with Fig. 3, its structure includes being respectively arranged in the sensor on the first breaker operation mechanism 13 and the second breaker operation mechanism 23 and switching input module, sensor includes Hall element, it is used for gathering the acting characteristic parameter of HGIS combined electrical apparatus, such as divide-shut brake mechanical action time and the elapsed time etc. of control element；Switching input module is used for gathering the on off state of two HGIS combined electrical apparatuses.After each self-information collected is sequentially passed through analogue filter circuit and sampling hold circuit by sensor respectively, it is connected with A/D module by a multiplexer, MCU module is fed back to after completing the analog-to-digital conversion process of signal, after two switching input modules obtain the switching-state information of two HGIS combined electrical apparatuses respectively, it is connected with the signal input part of MCU module each via photoelectric isolating circuit.Switching characteristic measuring unit 3 uses parallel interface to realize the transmission with control unit 4 data, and therefore, MCU module comprises super I/O chip, can convert serial data into parallel data and facilitate the transmission of data.
The structure of control unit 4 in such scheme is further illustrated in conjunction with Fig. 4, its structure includes the analogue filter circuit being sequentially connected electrically, sampling hold circuit, multiplexer, A/D module and MCU module, first current transformer 11 and the first voltage transformer 12 obtain the relevant parameter of a HGIS combined electrical apparatus 1 and (include electric current, voltage, power etc.), second current transformer 21 and the second voltage transformer 22 obtain the relevant parameter of the 2nd HGIS combined electrical apparatus 2 and (include electric current, voltage, power etc.), two-way sampled signal each keeps through analog filtering and sampling, change by being completed modulus signal by A/D module after a multiplexer, and feed back to MCU module；The signal output part of MCU module connects the first breaker operation mechanism 13 and the second breaker operation mechanism 23 respectively.Control unit 4 is also adopted by parallel interface and realizes the transmission with switching characteristic measuring unit 3 data, and therefore, MCU module also comprises super I/O chip, can convert serial data into parallel data and facilitate the transmission of data.For realizing the protection of different electrical power and Based Intelligent Control, the signal input part of MCU module is also associated with key-press module, can set the early warning value of working power relevant parameter, it is simple to very fast suit the combined electrical apparatus protection to working power；Signal output part in MCU module is also associated with display module simultaneously, can show the working power working status parameter of monitoring in real time.
Power supply status in work is monitored in real time by this utility model by switching characteristic measuring unit 3, and the real time data collected feeds back to the control unit 4 being attached thereto, and can be shown the running parameter of power supply in real time by the display module in control unit 4.Set the characterisitic parameter early warning value of working power by the key-press module in control unit 4, jointly realize monitoring and defencive function in real time to working power in conjunction with switching characteristic measuring unit 3.When working power breaks down, switching characteristic measuring unit 3 can capture fault parameter the very first time, and completes the branch wire time computing that HGIS combined electrical apparatus is real-time, and above-mentioned information is passed to control unit 4 in time；Electric current that current transformer on two HGIS combined electrical apparatuses and voltage transformer are collected and Voltage Feedback are to control unit 4, frequency is calculated by control unit 4, the electric parameters such as power direction, with the judgement that the early warning value comparison set carries out fault, thus quickly start switch logic, calculate suitable branch wire time, judge the zero crossing moment of electric current, and on the basis of the curtage zero point moment in nearest moment, the real-time action time tested in advance according to switching characteristic measuring unit 3, the signal of separating brake is sent to the second breaker operation mechanism 23, the second breaker operation mechanism 23 is made to complete separating brake in the next current zero-crossing point moment；Send the signal of combined floodgate to the first breaker operation mechanism 13, make the first breaker operation mechanism 13 complete to close a floodgate in the voltage over zero moment, thus complete the cut-out of trouble power and the input of stand-by power supply.
The very fast combined electrical apparatus branch wire time each time that suits that this utility model provides is not changeless, but by monitoring in real time according to starting the result that logic calculates in real time, therefore, very fast the suiting in the case of combined electrical apparatus is simultaneously suitable for the Various Complex such as station service and transformer station that this utility model provides uses.Branch wire time can be controlled within 10 milliseconds by the vacuum circuit breaker using band electromagnetic repulsion force operating mechanism, it it is a few tens of milliseconds with conventional power source apparatus for fast switching branch wire time to fast a lot of compared with 100 milliseconds, fault current can quickly be excised, put into can controlling total time within 30～50 milliseconds of stand-by power supply, fully effective guarantee load not power-off truly, improves safety in production reliability of operation.
Technique scheme uses option principle, i.e. at current zero-crossing point moment separating brake, the voltage over zero moment closes a floodgate, overcome tradition switching switch produce the highest overvoltage of amplitude when divide-shut brake due to the unfixing of phase place and shove, cause insulation breakdown and the problem of reliability reduction of electrical equipment, effectively prevent the impact to electrical network, improve the stability of system, extend service life and the time between overhauls(TBO) of HGIS combined electrical apparatus., cut-off by fault current is controlled meanwhile, be effectively increased the ability cut-offfing big electric current of chopper, decrease the abrasion of contact, breach the technical bottleneck that vacuum circuit breaker is applied at high-voltage fence.This utility model simple in construction, is designed with the form of combined electrical apparatus, easy to install and use, uses the very fast of this utility model offer to suit combined electrical apparatus, can reach the best fit of senior middle school's low-voltage vacuum switch and automatization's fast switching device.
Above example is only in order to illustrate the technical solution of the utility model and unrestricted, other amendment or equivalents that the technical solution of the utility model is made by those of ordinary skill in the art, without departing from the spirit and scope of technical solutions of the utility model, all should contain in right of the present utility model.
Claims (10)
- The most very fast suit combined electrical apparatus, it is characterized in that: include control unit, switching characteristic measuring unit and two set HGIS combined electrical apparatuses, often it is mounted on current transformer and voltage transformer on set HGIS combined electrical apparatus, often the current transformer on set HGIS combined electrical apparatus and voltage transformer all electrically connect with the signal input part of control unit, the signal output part of control unit connects the divide-shut brake loop of the breaker operation mechanism often overlapped in HGIS combined electrical apparatus, switching characteristic measuring unit is connected with whole switching characteristic sampling circuits of the breaker operation mechanism in often set HGIS combined electrical apparatus, switching characteristic measuring unit connects the signal input part of control unit, chopper in described often set HGIS combined electrical apparatus is vacuum circuit breaker, breaker operation mechanism is electromagnetic repulsion force operating mechanism；Described switching characteristic measuring unit for detecting the acting characteristic of HGIS combined electrical apparatus and feed back to control unit, described control unit for judge working power malfunction and in HGIS combined electrical apparatus breaker operation mechanism send divide-shut brake instruction.
- The most according to claim 1 very fast suit combined electrical apparatus, it is characterized in that: the control cable of the breaker operation mechanism of described often set HGIS combined electrical apparatus is drawn from its secondary terminal box or aviation plug, and the outlet of control unit and switching characteristic measuring unit is all drawn from respective secondary terminals row or aviation plug.
- The most according to claim 1 very fast suit combined electrical apparatus, it is characterised in that: the current transformer installed on described often set HGIS combined electrical apparatus and the outlet of voltage transformer are all drawn from the secondary terminal box of respective equipment.
- The most according to claim 1 very fast suit combined electrical apparatus, it is characterized in that: described switching characteristic measuring unit includes sensor and the switching input module being respectively arranged on the breaker operation mechanism of often set HGIS combined electrical apparatus, often the sensor on set HGIS combined electrical apparatus is sequentially connected with analogue filter circuit and is connected with A/D module by multiplexer with after sampling hold circuit, A/D module connects the signal input part of MCU module, and switching input module is connected with the signal input part of MCU module by photoelectric isolating circuit.
- The most according to claim 4 very fast suit combined electrical apparatus, it is characterised in that: described MCU module comprises super I/O chip.
- The most according to claim 4 very fast suit combined electrical apparatus, it is characterised in that: described switching characteristic measuring unit realizes the transmission of data with control unit by parallel interface.
- The most according to claim 1 very fast suit combined electrical apparatus, it is characterized in that: described control unit includes analogue filter circuit, sampling hold circuit, multiplexer and the A/D module being sequentially connected with the current transformer in often set HGIS combined electrical apparatus and voltage transformer, A/D module connects the signal input part of MCU module, breaker operation mechanism in the signal output part connection of MCU module often set HGIS combined electrical apparatus.
- The most according to claim 7 very fast suit combined electrical apparatus, it is characterised in that: described control unit all realizes the transmission with switching characteristic measuring unit data by parallel interface.
- The most according to claim 7 very fast suit combined electrical apparatus, it is characterised in that: described MCU module comprises super I/O chip.
- The most according to claim 7 very fast suit combined electrical apparatus, it is characterised in that: described control unit also includes the key-press module that the signal input part with MCU module is connected, and the display module being connected with the signal output part of MCU module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380559.6U CN205647006U (en) | 2016-04-29 | 2016-04-29 | Extremely fast combined electrical apparatus that suits |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380559.6U CN205647006U (en) | 2016-04-29 | 2016-04-29 | Extremely fast combined electrical apparatus that suits |
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| CN205647006U true CN205647006U (en) | 2016-10-12 |
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| CN201620380559.6U Expired - Fee Related CN205647006U (en) | 2016-04-29 | 2016-04-29 | Extremely fast combined electrical apparatus that suits |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790430A (en) * | 2016-04-29 | 2016-07-20 | 中电新源智能电网科技有限公司 | Quick-switching combined electrical appliance |
-
2016
- 2016-04-29 CN CN201620380559.6U patent/CN205647006U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790430A (en) * | 2016-04-29 | 2016-07-20 | 中电新源智能电网科技有限公司 | Quick-switching combined electrical appliance |
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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 |
Granted publication date: 20161012 Termination date: 20200429 |
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| CF01 | Termination of patent right due to non-payment of annual fee |