CN203481835U - Reactive compensation system suitable for low voltage network - Google Patents
Reactive compensation system suitable for low voltage network Download PDFInfo
- Publication number
- CN203481835U CN203481835U CN201320600665.7U CN201320600665U CN203481835U CN 203481835 U CN203481835 U CN 203481835U CN 201320600665 U CN201320600665 U CN 201320600665U CN 203481835 U CN203481835 U CN 203481835U
- Authority
- CN
- China
- Prior art keywords
- unit
- reactive compensation
- compensation system
- voltage network
- reactive
- 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
- 239000003990 capacitor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
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
- Control Of Electrical Variables (AREA)
Abstract
The utility model discloses a reactive compensation system suitable for a low voltage network. The reactive compensation system includes a wire inlet unit, a wire output unit, and a reactive compensation unit which are successively connected via lines, the wire inlet unit is arranged in a wire inlet cabinet, the wire outlet unit is arranged in a wire outlet cabinet, and the reactive compensation unit is arranged in a reactive compensation cabinet. The reactive compensation system is simpler in structure, stronger in function, and convenient to operate and maintain, and compared with a conventional reactive compensation system, the reactive compensation system provided saves a controller through the arrangement of the reactive compensation unit, as well as the system harmonic wave is monitored.
Description
Technical field
?the utility model relates to a kind of reactive compensation system, specifically a kind of reactive compensation system that is suitable for low-voltage network.
Background technology
along with the raising of expanding economy and people's living standard, all trades and professions are had higher requirement to power supply reliability and power supply quality.Due to the end of power distribution network in electrical network, user mostly is low-voltage customer, the power factor of many electrical appliances is very low, and be not with compensation arrangement, this brings very large power burden and extra line loss to electrical network, in order to safeguard power system stability, guarantee the quality of power supply and safe operation, rural power distribution line is carried out to reactive power compensation necessary.Along with automatic control system (as dcs etc.) being widely used in power distribution network, in order to reduce the pollution to electrical network of harmonic wave that Electrolytic rectifying device and frequency converter produce, also need Distribution Network Harmonics monitor, analyze and administer, so not only the electric energy loss of supply line can be effectively reduced, the useful life of power equipment can also be effectively increased.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of reactive compensation system that is suitable for low-voltage network, and structure is simpler, and manufacturing cost is lower, and it is convenient to control.
In order to solve the problems of the technologies described above, the utility model is taked following technical scheme:
A kind of reactive compensation system that is suitable for low-voltage network, comprise the wire inlet unit, outgoing line unit and the reactive power compensation unit that by circuit, connect successively, described wire inlet unit is contained in incoming line cabinet, and outgoing line unit is contained in outgoing line cabinet, and reactive power compensation unit is contained in reactive compensation cabinet.
Described wire inlet unit comprises comprehensive power distribution control module and the main switch by connection.
Described main switch is pull-out type frame circuit breaker.
In described outgoing line unit, be provided with branch circuit breaker.
Described branch circuit breaker is pull-out type frame circuit breaker.
Described reactive power compensation unit comprises compensating switch unit and the reactive compensation switching unit being connected.
Described compensating switch unit comprises the switch with knifeshaped fuse summation current transformer by connection.
Described reactive compensation switching is provided with switching combination switch in unit, and this switching combination switch is connected with comprehensive power distribution control module by circuit.
The utility model is simple in structure, combines versatile and flexiblely, can require combine according to different loads and distribution.What line unit was used is all intelligent switch, major loop, a minute branch road is played to the protections such as overload, ground connection, electric leakage, phase shortage, overvoltage, under-voltage, Voltage unbalance, overfrequency, inverse probability.By comprehensive control instrument, the harmonic wave of system is monitored, after drawing data, reenact corresponding resolution, the control of reactive power compensating unit that simultaneously comprehensive control instrument carries can well completion system the control of reactive power compensating, compare with traditional reactive compensation system, simplified wiring, maintain easily cost saving.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model principle schematic.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, the utility model has disclosed a kind of reactive compensation system that is suitable for low-voltage network, comprise the wire inlet unit 1, outgoing line unit 2 and the reactive power compensation unit 3 that by circuit, connect successively, described wire inlet unit 1 is contained in incoming line cabinet, outgoing line unit 2 is contained in outgoing line cabinet, reactive power compensation unit 3 is contained in reactive compensation cabinet, and three assembles one, is convenient to management and operation.Wire inlet unit 1 comprises by the comprehensive power distribution control module 12 of connection and main switch 11, and this main switch 11 is pull-out type frame circuit breaker, and particularly intelligent pull-out type frame circuit breaker, has electric current, voltage measurement function.In outgoing line unit 2, be provided with branch circuit breaker 21, this branch circuit breaker 21 is pull-out type frame circuit breaker, and especially intelligent pull-out type frame circuit breaker has electric current, voltage measurement function.Main switch can play the protections such as overload, ground connection, electric leakage, phase shortage, overvoltage, under-voltage, Voltage unbalance, overfrequency, inverse probability to major loop, and branch circuit breaker can play a protective role to every overload of outgoing line unit, ground connection etc.
Reactive power compensation unit 3 comprises compensating switch unit 31 and the reactive compensation switching unit 32 being connected.Compensating switch unit 31 comprises the switch with knifeshaped fuse summation current transformer by connection, and compensating switch unit can have a plurality of switch with knifeshaped fuse arranged side by side.In reactive compensation switching unit 32, be provided with switching combination switch, this switching combination switch is connected with comprehensive power distribution control module by circuit.
Comprehensive power distribution control module in wire inlet unit is installed in incoming line switch cabinet, by the observing and controlling to system power voltage signal, in real time the harmonic wave of system is monitored.The no-power compensation function of comprehensive power distribution control module, can effectively control reactive power compensation unit.The idle control signal of comprehensive power distribution control module is given to combination switch by secondary line, reaches the effect of capacitor switching by controlling combination switch.Because measuring control instrument for electricity carrys out control capacitance switching, compare with traditional reactive compensation system, simplified wiring, maintain easily cost saving.
In addition, as being provided with capacitor, switch etc. in reactive power compensation unit, belong to general knowledge, in this not go into detail.In reactive power compensation unit, be also provided with the lightning arrester being connected in parallel with reactive compensation switching unit, effectively play further protective effect.
Claims (8)
1. a reactive compensation system that is suitable for low-voltage network, it is characterized in that, described system comprises the wire inlet unit (1) that connects successively by circuit, outgoing line unit (2) and reactive power compensation unit (3), wire inlet unit is contained in incoming line cabinet, outgoing line unit is contained in outgoing line cabinet, and reactive power compensation unit is contained in reactive compensation cabinet.
2. the reactive compensation system that is suitable for low-voltage network according to claim 1, is characterized in that, described wire inlet unit comprises by the comprehensive power distribution control module (12) of connection and main switch (11).
3. the reactive compensation system that is suitable for low-voltage network according to claim 2, is characterized in that, described main switch is pull-out type frame circuit breaker.
4. the reactive compensation system that is suitable for low-voltage network according to claim 1, is characterized in that, is provided with branch circuit breaker (21) in described outgoing line unit.
5. the reactive compensation system that is suitable for low-voltage network according to claim 4, is characterized in that, described branch circuit breaker is pull-out type frame circuit breaker.
6. the reactive compensation system that is suitable for low-voltage network according to claim 1, is characterized in that, described reactive power compensation unit comprises compensating switch unit (31) and reactive compensation switching unit (32) that are connected.
7. the reactive compensation system that is suitable for low-voltage network according to claim 6, is characterized in that, described compensating switch unit comprises the switch with knifeshaped fuse summation current transformer by connection.
8. according to the reactive compensation system that is suitable for low-voltage network described in claim 6 or 7, it is characterized in that, described reactive compensation switching is provided with switching combination switch in unit, and this switching combination switch is connected with comprehensive power distribution control module by circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600665.7U CN203481835U (en) | 2013-09-27 | 2013-09-27 | Reactive compensation system suitable for low voltage network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600665.7U CN203481835U (en) | 2013-09-27 | 2013-09-27 | Reactive compensation system suitable for low voltage network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203481835U true CN203481835U (en) | 2014-03-12 |
Family
ID=50230090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320600665.7U Expired - Fee Related CN203481835U (en) | 2013-09-27 | 2013-09-27 | Reactive compensation system suitable for low voltage network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203481835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362676A (en) * | 2014-11-12 | 2015-02-18 | 国家电网公司 | Distributed power supply grid connection access system |
-
2013
- 2013-09-27 CN CN201320600665.7U patent/CN203481835U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362676A (en) * | 2014-11-12 | 2015-02-18 | 国家电网公司 | Distributed power supply grid connection access system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203690938U (en) | Low-voltage reactive-power automatic compensation device | |
| CN204442008U (en) | A kind of intelligent type low-voltage comprehensive distribution cabinet | |
| CN209571832U (en) | Low-voltage controlling device | |
| CN106410851B (en) | A grid-connected interface device for small distributed photovoltaic power plants | |
| CN102928716A (en) | Intelligent power quality monitoring system | |
| CN103595059A (en) | Reactive compensation device of 10kV line | |
| CN106549411A (en) | Distributed power source grid-connecting apparatus | |
| CN201629502U (en) | Low-voltage distribution transformer reactive power compensation integrated box | |
| CN203690744U (en) | Intelligent low-voltage integration distribution box | |
| CN208369216U (en) | A kind of integration active compensation distribution change platform complexes | |
| CN203562784U (en) | Reactive Power Compensation Device for 10kV Line | |
| CN204030286U (en) | Outdoor reactive power compensation comprehensive distribution box | |
| CN203398559U (en) | Multi-path electric-quantity monitoring AC distribution box for communication base station | |
| CN203481835U (en) | Reactive compensation system suitable for low voltage network | |
| CN205195110U (en) | But photovoltaic power plant box -type substation of remote control, telemetering measurement and remote signalling | |
| CN203813519U (en) | Centralized-control intelligent power distribution cabinet | |
| CN204243589U (en) | Novel combination type intelligent low-pressure distribution JP cabinet | |
| CN201528207U (en) | A dynamic high voltage reactive power automatic compensation device | |
| CN207320836U (en) | Active intelligent type comprehensive power distribution equipment | |
| CN204495948U (en) | A kind of disconnection monitor | |
| CN202930939U (en) | Intelligent type three phase electricity-saving appliance | |
| CN203367134U (en) | Outdoor combined-type prepayment circuit breaker | |
| CN203326904U (en) | Intelligent high-frequency switching power supply system | |
| CN203301157U (en) | Low-voltage reactive compensation power distribution cabinet | |
| CN202856370U (en) | Three-unit cylinder type intelligent capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |