CN202395460U - Low-voltage dynamic reactive compensation device - Google Patents
Low-voltage dynamic reactive compensation device Download PDFInfo
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- CN202395460U CN202395460U CN 201120550023 CN201120550023U CN202395460U CN 202395460 U CN202395460 U CN 202395460U CN 201120550023 CN201120550023 CN 201120550023 CN 201120550023 U CN201120550023 U CN 201120550023U CN 202395460 U CN202395460 U CN 202395460U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model discloses a low-voltage dynamic reactive compensation device which consists of a master switch, a surge protection device (SPD), a controller and a plurality of low-voltage power capacitor composite apparatuses, wherein the upper end of the master switch is connected with a power supply; after being connected in parallel, the low-voltage power capacitor composite apparatuses are connected at the lower end of the master switch; the SPD is connected at the lower end of the master switch; and the controller is connected with the low-voltage power capacitor composite apparatuses. The low-voltage dynamic reactive compensation device has complete functions, is rapid in compensation, very simple in structure, high in reliability, good in maintenance, resource-saving, electricity-saving, cost-saving, small in volume and light in mass.
Description
Technical field
The utility model relates to low-voltage power imaginary power automatic compensation field; It is a kind of low voltage reactive power dynamic compensation device multiple functional, simple for structure; Specifically, be a kind of low voltage reactive power dynamic compensation device with functions such as imaginary power automatic compensation control and measurement, protection, signal, online, human-computer dialogues.
Background technology
The low voltage reactive power dynamic compensation device that prior function is complete; Except 1 master switch that has current protecting function; 1 of idle automatic compensating controller is generally arranged; 1 of at least 1 of power factor meter, voltmeter, 1 of the voltage measurement change over switch of reflection distribution operating mode, 3 in the ammeter of the interior operating mode of reflection device, 3 of current transformers; The reflection capacitor is thrown indicator light number or tens of of the state that moves back, and several or tens of low voltage power capacitors and several of matching therewith or tens of device for switching, protection electrical equipment etc.All these electric components machinery in one or several racks is installed, electrical wiring, and debugs, and forms product.This device exists that structure is numerous and diverse, poor reliability, operation maintenance inconvenience, exists resource (copper material, silver-colored material, engineering plastics etc.) to consume shortcomings such as big, power consumption (the lead electricity decreases, device electricity decrease) is big simultaneously.
Summary of the invention
The purpose of the utility model provides a kind of multiple functional, simple for structure novelty, reliability is high, operation maintenance is convenient, and the low voltage reactive power dynamic compensation device that resource is economized, power consumption is little, volume is little.
The technical solution of the utility model is:
A kind of low voltage reactive power dynamic compensation device; It is characterized in that: form by a master switch, surge protector, controller and Duo Tai low-voltage power and capacitance combined electrical appliance; Termination power on the master switch; Be connected to the master switch lower end after the low-voltage power and capacitance combined electrical appliance parallel connection, surge protector is connected on the master switch lower end, and controller is connected with low-voltage power and capacitance combined electrical appliance.
Except linking, only there is order wire to link at the most between the low-voltage power and capacitance combined electrical appliance and between low-voltage power and capacitance combined electrical appliance and the controller through power line.
The employing bus type of communicate by letter between the low-voltage power and capacitance combined electrical appliance and between low-voltage power and capacitance combined electrical appliance and the controller, promptly all ports go out line parallel.
Surge protector is three lightning arresters or three utmost point surge protectors, the housing and the ground connection of the dynamic auto compensation arrangement of ground connection termination low-voltage reactive power of lightning arrester or three utmost point surge protectors; Master switch is circuit breaker or the disconnecting link that has fuse.
Controller external distribution phase three-wire three phase voltage or three-phase and four-line phase voltage, and at least one phase distribution electric current.
Controller comprises with the single-chip microcomputer being the intelligent assembly of core, and intelligent assembly and display circuit, indicator light circuit, human-computer dialogue circuit and online circuit link.
Display circuit is for show the circuit of each phase total current of three-phase or three-way distribution voltage, at least one match the electrical power factor and the low voltage power capacitor that puts into operation simultaneously; The indicator light of indicator light circuit uses the dichromatic LED that puts into operation, moves back fortune, three kinds of states of fault that can show three kinds of color showing low voltage power capacitors; The human-computer dialogue circuit has button and LCD or sound circuit; Online circuit adopts communication or little carrier system of electric power or bus communication mode.
Having in the low-voltage power and capacitance combined electrical appliance with the single-chip microcomputer is the intelligent assembly of core and the online circuit that links therewith, and online circuit adopts communication or little carrier system of electric power or bus communication mode.
Low-voltage power and capacitance combined electrical appliance has at least two micro-transformer of current that are used for the sampling of low voltage power capacitor operating current, and micro-transformer of current and intelligent assembly link.
A low voltage power capacitor is arranged in the low-voltage power and capacitance combined electrical appliance; Or two low voltage power capacitors that can put into operation respectively, move back fortune are arranged in the low-voltage power and capacitance combined electrical appliance.
Master switch is circuit breaker or the disconnecting link that has fuse, when the electric current that passes through surpasses definite value, breaks off, and has current protecting function.Intelligent assembly has serial communication interface, and communication interface uses connector or terminal to draw.
The utility model beneficial effect is that low-voltage reactive power automatic compensation device is multiple functional, and simultaneously structure is very succinct, and reliability is high, the property tieed up is good, resource-saving, province's power consumption, cost-saving, volume is little, quality is little.
Description of drawings:
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the configuration diagram of an embodiment of the utility model.
Fig. 2 is the configuration diagram of its middle controller.
Fig. 3 is the configuration diagram of low-voltage power and capacitance combined electrical appliance wherein.
Among the figure:
1-master switch (have the disconnecting link of fuse, have current protecting function);
2-controller;
The quick low voltage electric capacitor combined electrical apparatus of 3-three-phase type;
The quick low voltage electric capacitor combined electrical apparatus of 4-split-phase type;
5-surge protector (lightning arrester);
Intelligent assembly in 6-controller;
Distribution voltage display circuit in 7-controller shows A phase, B phase, C phase distribution voltage simultaneously;
Distribution power number display circuit in 8-controller shows A phase, B phase, the C electrical power factor that matches simultaneously;
Put into operation in the 9-controller total current display circuit of low voltage power capacitor shows put into operation the mutually total current of low voltage power capacitor of A phase, B phase, C simultaneously;
Indicator light circuit in 10-controller, the corresponding low voltage power capacitor of indicator light, indicator light adopts double-colored (three pins) light-emitting diode, in have respectively glow, two light-emitting diodes of green glow, present yellow when simultaneously luminous;
Micro radio communications component in 11-controller;
LCD in 12-controller (being used for human-computer dialogue);
Keyboard in 13-controller (being used for human-computer dialogue);
Intelligent assembly in 14-quick low voltage electric capacitor combined electrical apparatus;
Wireless communication components in 15-quick low voltage electric capacitor combined electrical apparatus;
Micro-transformer of current in 16-quick low voltage electric capacitor combined electrical apparatus is to the operating current sampling of low voltage power capacitor;
Low voltage power capacitor in 17-quick low voltage electric capacitor combined electrical apparatus (be the main body of low-voltage power reactive power compensation, with in its capacitive reactive power compensation distribution perceptual idle).
Embodiment:
A kind of low voltage reactive power dynamic compensation device; Form by 5,1 controller 2 of 1,1 surge protector of 1 master switch and Duo Tai quick low voltage electric capacitor combined electrical apparatus (comprising the low-voltage power and capacitance combined electrical appliance 3 of three-phase type, the low-voltage power and capacitance combined electrical appliance 4 of split-phase type); Termination power on the master switch; Be connected to master switch 1 lower end after the parallel connection of quick low voltage electric capacitor combined electrical apparatus, surge protector is in the master switch lower end.Master switch is circuit breaker or the disconnecting link that has fuse, when the electric current that passes through surpasses definite value, breaks off, and has current protecting function.
Except linking, only there is order wire to link at the most between the quick low voltage electric capacitor combined electrical apparatus and between quick low voltage electric capacitor combined electrical apparatus and the controller through power line.
The employing bus type of communicate by letter between the quick low voltage electric capacitor combined electrical apparatus and between quick low voltage electric capacitor combined electrical apparatus and the controller, promptly all ports go out line parallel.
Surge protector is three lightning arresters or three utmost point surge protectors, the ground connection termination static low-voltage reactive power automatic compensation device housing and the ground connection of lightning arrester or three utmost point surge protectors.
Controller external distribution phase three-wire three phase voltage or three-phase and four-line phase voltage, and at least one phase distribution electric current.
Controller comprises with the single-chip microcomputer being the intelligent assembly 6 of core, and intelligent assembly 6 links with nixie display circuit 7,8,9, indicator light circuit 10, human-computer dialogue circuit (comprising LCD 12, keyboard 13 etc.) and online circuit (micro radio communications component 11).
Display circuit is for show the circuit 7,8,9 of each phase total current of three-phase or three-way distribution voltage, at least one match the electrical power factor and the low voltage power capacitor that puts into operation simultaneously; The indicator light of indicator light circuit 10 uses double-colored (three pins) light-emitting diode that puts into operation, moves back fortune, three kinds of state different colours of fault that can represent low voltage power capacitor; The human-computer dialogue circuit has keyboard 13 and LCD 12 (or sound circuit); Online circuit adopts communication (or adopting little carrier system of electric power or bus communication mode).
Have with the single-chip microcomputer in the quick low voltage electric capacitor combined electrical apparatus is the intelligent assembly 14 of core and the online circuit that links therewith; Online circuit adopts communication (adopting wireless communication components 15), and online circuit also can adopt little carrier system of electric power or bus communication mode.
Quick low voltage electric capacitor combined electrical apparatus has at least two micro-transformer of current 16 that are used for the sampling of low voltage power capacitor operating current, and micro-transformer of current and intelligent assembly 14 link.
The low voltage power capacitor 17 that one (or two, can put into operation, move back fortune respectively) arranged in the quick low voltage electric capacitor combined electrical apparatus.
Intelligent assembly 6 has serial communication interface, and serial communication interface uses connector or terminal to draw.
The operation principle of the utility model is:
1) switching on and shutting down principle: manually master switch 1 is closed a floodgate energized, device work (start); Manually to master switch 1 separating brake, deenergization, device quit work (shutdown).
2) low-voltage reactive power automatic compensation principle: controller 2 is according to distribution voltage UA, UB, UC, UN and distribution electric current I a, Ib, Ic, the I of input
N, carry out size measurement and the voltage of voltage, electric current, the phase measurement between electric current, obtain distribution reactive power vacancy situation, if in the Preset Time (<5S; Time can revise) perception is idle greater than predetermined value in the distrbution network; Then controller 2 adopts communications that a certain low-voltage power and capacitance combined electrical appliance is sent the order of wanting its low voltage power capacitor that puts into operation, this low-voltage power and capacitance combined electrical appliance puts into operation through the communication low voltage power capacitor that the back is about to wherein that receives orders, and the capacitive reactive power of the low voltage power capacitor that puts into operation has compensated perceptual idle in the distrbution network; Total idle amount obtains reducing; If perceptual idle still greater than predetermined value in the distrbution network, then controller 2 is issued an order to all the other a certain low-voltage power and capacitance combined electrical appliances, please its low voltage power capacitor that puts into operation; And when the capacitive reactive power in the distrbution network during greater than predetermined value; Then 2 pairs of a certain low-voltage power and capacitance combined electrical appliances that put into operation low voltage power capacitor of controller are issued an order; Want it that low voltage power capacitor that puts into operation is out of service, thereby the reactive power in the distrbution network is remained in the smaller value scope automatically.
3) low-voltage power and capacitance work total current while displaying principle in distribution voltage, distribution power factor, the device: controller 2 records distribution three-phase (three-way) voltage according to distribution UA, UB, UC, UN, and three displays delivering to respectively then in the distribution voltage display circuit 7 show; Controller 2 is according to distribution UA, UB, UC, UN and distribution electric current I a, Ib, Ic, I
NRecord the distribution three-phase activity coefficient, three displays delivering to respectively then in the distribution power number display circuit 8 show; Intelligent assembly 14 in each low-voltage power and capacitance combined electrical appliance records this TV station each of low voltage power capacitor total current of working mutually that puts into operation through micro-transformer of current 16; Then it is mail to controller 2 (being received through micro radio communications component 11 by the intelligent assembly in the controller 6) through wireless communication components 15; The low voltage power capacitor operating current that controller 2 is sent all low-voltage power and capacitance combined electrical appliances carries out computing; Get each phase total current of low voltage power capacitor work in the auto levelizer, three displays that are sent to then in the total current display circuit 9 show.
4) low voltage power capacitor state indication principle: the electric current that 2 pairs of low-voltage power and capacitance combined electrical appliances of controller are sent is analyzed and reasoning from logic; As confirming that a certain low voltage power capacitor at the state of putting into operation, then makes the red light emitting diodes of a certain correspondence in the indicator light circuit 10 luminous, represent that this low voltage power capacitor is in " putting into operation " state; As confirming that a certain low voltage power capacitor is moving back the fortune state; Then make the green LED of a certain correspondence in the indicator light circuit 10 luminous, represent that this low voltage power capacitor is in " moving back fortune " state, move back the fortune state and go wrong as confirming a certain low voltage power capacitor throwing; Then make redness, the green LED of a certain correspondence in the indicator light circuit 10 all luminous; Red, green light is mixed, and externally shows gold-tinted, representes that this low voltage power capacitor is in " fault " state.
5) human-computer dialogue principle: the people makes intelligent assembly 6 perception in the controller with information through operation keyboard 13; Intelligent assembly 6 in the controller shows corresponding information the people of announcement through LCD 12; The two is interactive conversation therefore, and perhaps the intelligent assembly in the controller 6 carries out human-computer dialogue (adding the equipment that can communicate by letter in the outside) through serial communication interface.
Claims (10)
1. low voltage reactive power dynamic compensation device; It is characterized in that: form by a master switch, surge protector, controller and Duo Tai low-voltage power and capacitance combined electrical appliance; Termination power on the master switch; Be connected to the master switch lower end after the low-voltage power and capacitance combined electrical appliance parallel connection, surge protector is connected on the master switch lower end, and controller is connected with low-voltage power and capacitance combined electrical appliance.
2. low voltage reactive power dynamic compensation device according to claim 1 is characterized in that: except linking through power line, only have order wire to link at the most between the low-voltage power and capacitance combined electrical appliance and between low-voltage power and capacitance combined electrical appliance and the controller.
3. low voltage reactive power dynamic compensation device according to claim 2 is characterized in that: the employing bus type of communicate by letter between the low-voltage power and capacitance combined electrical appliance and between low-voltage power and capacitance combined electrical appliance and the controller, promptly all ports go out line parallel.
4. according to claim 1,2 or 3 described low voltage reactive power dynamic compensation devices; It is characterized in that: surge protector is three lightning arresters or three utmost point surge protectors, the housing and the ground connection of the dynamic auto compensation arrangement of ground connection termination low-voltage reactive power of lightning arrester or three utmost point surge protectors; Master switch is circuit breaker or the disconnecting link that has fuse.
5. according to claim 1,2 or 3 described low voltage reactive power dynamic compensation devices, it is characterized in that: controller external distribution phase three-wire three phase voltage or three-phase and four-line phase voltage, and at least one phase distribution electric current.
6. according to claim 1,2 or 3 described low voltage reactive power dynamic compensation devices, it is characterized in that: controller comprises with the single-chip microcomputer being the intelligent assembly of core, and intelligent assembly and display circuit, indicator light circuit, human-computer dialogue circuit and online circuit link.
7. low voltage reactive power dynamic compensation device according to claim 6 is characterized in that: display circuit is for show the circuit of each phase total current of three-phase or three-way distribution voltage, at least one match the electrical power factor and the low voltage power capacitor that puts into operation simultaneously; The indicator light of indicator light circuit uses the dichromatic LED that puts into operation, moves back fortune, three kinds of states of fault that can show three kinds of color showing low voltage power capacitors; The human-computer dialogue circuit has button and LCD or sound circuit; Online circuit adopts communication or little carrier system of electric power or bus communication mode.
8. according to claim 1,2 or 3 described low voltage reactive power dynamic compensation devices; It is characterized in that: having in the low-voltage power and capacitance combined electrical appliance with the single-chip microcomputer is the intelligent assembly of core and the online circuit that links therewith, and online circuit adopts communication or little carrier system of electric power or bus communication mode.
9. low voltage reactive power dynamic compensation device according to claim 8; It is characterized in that: low-voltage power and capacitance combined electrical appliance has at least two micro-transformer of current that are used for the sampling of low voltage power capacitor operating current, and micro-transformer of current and intelligent assembly link.
10. according to claim 1,2 or 3 described low voltage reactive power dynamic compensation devices, it is characterized in that: a low voltage power capacitor is arranged in the low-voltage power and capacitance combined electrical appliance; Or two low voltage power capacitors that can put into operation respectively, move back fortune are arranged in the low-voltage power and capacitance combined electrical appliance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120550023 CN202395460U (en) | 2011-12-26 | 2011-12-26 | Low-voltage dynamic reactive compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120550023 CN202395460U (en) | 2011-12-26 | 2011-12-26 | Low-voltage dynamic reactive compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202395460U true CN202395460U (en) | 2012-08-22 |
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ID=46670362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120550023 Expired - Lifetime CN202395460U (en) | 2011-12-26 | 2011-12-26 | Low-voltage dynamic reactive compensation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202395460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891491A (en) * | 2012-09-06 | 2013-01-23 | 山西省电力公司大同供电分公司 | Reactive compensation device of power system |
-
2011
- 2011-12-26 CN CN 201120550023 patent/CN202395460U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891491A (en) * | 2012-09-06 | 2013-01-23 | 山西省电力公司大同供电分公司 | Reactive compensation device of power system |
| CN102891491B (en) * | 2012-09-06 | 2016-02-03 | 山西省电力公司大同供电分公司 | A kind of reactive compensation device of power system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
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| CX01 | Expiry of patent term |