CN204966980U - Block terminal wiring system is synthesized to low pressure - Google Patents
Block terminal wiring system is synthesized to low pressure Download PDFInfo
- Publication number
- CN204966980U CN204966980U CN201520635626.XU CN201520635626U CN204966980U CN 204966980 U CN204966980 U CN 204966980U CN 201520635626 U CN201520635626 U CN 201520635626U CN 204966980 U CN204966980 U CN 204966980U
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- China
- Prior art keywords
- branch road
- phase
- outlet
- current transformer
- bus
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- Expired - Fee Related
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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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- Control Of Electrical Variables (AREA)
Abstract
The utility model relates to a block terminal wiring system is synthesized to low pressure, including a cabinet body arranged outdoors, be equipped with the inlet wire generating line in the box, be qualified for the next round of competitions generating line and reactive compensation controller, the inlet wire generating line links to each other through moulded case circuit breaker QF1, current transformer TA1 and the generating line of being qualified for the next round of competitions in proper order, current transformer TA1's output links to each other with the electric energy meter of installing in the box through the concentrator, the generating line of being qualified for the next round of competitions is connected with be qualified for the next round of competitions branch road and reactive compensation unit, the reactive compensation unit includes three -phase compensation branch road and phase separating compensation branch road, phase separating compensation branch road includes blend switch FK1 and condenser C2, the reactive compensation controller for gather current transformer TA1's current signal and be qualified for the next round of competitions voltage signal on the generating line and with control phase separating compensating capacitor C2's automatic switching, realize the reactive compensation automatic control function. The utility model discloses fail safe nature is high, be difficult for breaking down, having improved power efficiency, has made things convenient for the operation and maintenance.
Description
Technical field
The utility model relates to low-voltage comprehensive distribution box technical field, is specifically related to a kind of low-voltage comprehensive distribution box wiring system.
Background technology
Along with the development of national economy, the task of State Grid's industry is also more arduous, and due to industrial expansion, the reactive loss in present electrical network sharply increases, and the electrical network quality of power supply is worsened, and also increases the weight of burden and the loss of circuit and transformer simultaneously.Nowadays country just advocates energy-saving and emission-reduction, and the reactive power compensation therefore in electrical network has attracted more concern.No matter industrial load or appliance load, wherein the inductive load ratio that all accounting is larger, such as transformer, asynchronous machine and a lot of household electrical appliance are all inductive loads.The natural power factor of these loads is lower, and the reactive power that it consumes ties up in the electricity in electric power transfer and accounts for very high ratio.The increase of the reactive power in circuit can cause the reduction of power factor, causes the increase of electric current and the decline of system voltage, thus increases the loss of circuit and equipment, causes the loss of a large amount of electric energy.Current low-tension distribution box wiring system can only compensate stable power circuit, when line voltage distribution is unstable, can not effectively be acted on, and cannot provide a stable compensation continued to electric power system.And present electric wiring connects comparatively complicated, is inconvenient to control, easily breaks down.
Utility model content
The purpose of this utility model is to provide a kind of low-voltage comprehensive distribution box wiring system, and security reliability is high, not easily break down, improve power supplying efficiency.
For achieving the above object, the utility model have employed following technical scheme: comprise and be arranged on outdoor casing, inlet wire bus, outlet bus and idle compensating control is provided with in described casing, described inlet wire bus is connected with outlet bus through breaker of plastic casing QF1, current transformer TA1 successively, and the output of described current transformer TA1 is connected with the electric energy meter be arranged in casing through concentrator; Described outlet bus is connected with outlet branch road and reactive compensation unit, described reactive compensation unit comprises three-phase and compensates branch road and phase splitting compensation branch road, described phase splitting compensation branch road comprises combination switch FK1 and capacitor C2, the end of incoming cables of described combination switch FK1 is connected with outlet bus through breaker of plastic casing QF5, and its leading-out terminal is connected with phase splitting compensation capacitor C2; The terminals of described idle compensating control are connected with phase splitting compensation capacitor C2 with current transformer TA1, outlet bus respectively by cable, and the voltage signal on the current signal that gathers current transformer TA1 and outlet bus is to control the automatic switching of phase splitting compensation capacitor C2.
Described three-phase compensates branch road and comprises combination switch FK2 and three-phase compensation capacitor C1, and the end of incoming cables of described combination switch FK2 is connected with the leading-out terminal of breaker of plastic casing QF5, and its leading-out terminal is connected with three-phase compensation capacitor C1.
Described outlet branch road is at least three tunnels, and every bar outlet branch road is connected with residual current action breaker and branch current instrument transformer respectively in turn.
Described outlet bus is connected with Surge Protector SPD, the leading-out terminal of described breaker of plastic casing QF5 is connected with lightning arrester FB.
As shown from the above technical solution, low-voltage comprehensive distribution box wiring system described in the utility model, security reliability is high, not easily break down, improve power supplying efficiency, while achieving conventional low distribution system function, possesses again the effect of electric energy metrical, this system also handled easily and maintenance simultaneously.The breaker of plastic casing arranged in systems in which when system runs into fault, can disconnect in time, facilitates the maintenance of electrical network.The idle compensating control increased in system can gather voltage signal on the current signal of current transformer TA1 and outlet bus to control the automatic switching of phase splitting compensation capacitor C2, achieves the automatic control function of the control of reactive power compensating.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model low-voltage comprehensive distribution box wiring system.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1, the low-voltage comprehensive distribution box wiring system of the present embodiment, comprise and be arranged on outdoor casing, inlet wire bus 1, outlet bus 2 and idle compensating control 3 is provided with in casing, inlet wire bus 1 is connected with outlet bus 2 through breaker of plastic casing QF1, current transformer TA1 successively, and the output of current transformer TA1 is connected with the electric energy meter 5 be arranged in casing through concentrator 4; Outlet bus 2 is connected with outlet branch road 6 and reactive compensation unit 7, reactive compensation unit 7 comprises three-phase and compensates branch road and phase splitting compensation branch road, phase splitting compensation branch road comprises combination switch FK1 and capacitor C2, the end of incoming cables of combination switch FK1 is connected with outlet bus 2 through breaker of plastic casing QF5, and the leading-out terminal of combination switch FK1 is connected with phase splitting compensation capacitor C2; The terminals of idle compensating control 3 are connected with phase splitting compensation capacitor C2 with current transformer TA1, outlet bus 2 respectively by cable, for gathering voltage signal on the current signal of current transformer TA1 and outlet bus 2 to control the automatic switching of phase splitting compensation capacitor C2, realize reactive power compensation automatic control function.This three-phase compensates branch road and comprises combination switch FK2 and three-phase compensation capacitor C1, and the end of incoming cables of combination switch FK2 is connected with the leading-out terminal of breaker of plastic casing QF5, and the leading-out terminal of combination switch FK2 is connected with three-phase compensation capacitor C1.Outlet bus 2 is connected with Surge Protector SPD, the leading-out terminal of breaker of plastic casing QF5 is connected with lightning arrester FB.
Conveniently low-voltage comprehensive distribution box wiring system is connected with the load outside casing, this outlet branch road 6 can be three tunnels, four roads or multichannel, be preferable over three tunnels in the present embodiment, every bar outlet branch road 6 is connected with residual current action breaker 61 and branch current instrument transformer 62 respectively in turn.As shown in Figure 1, the circuit breaker namely on these three outlet branch roads is respectively QF2, QF3 and QF4, and current transformer is respectively TA2, TA3 and TA4.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection range that the utility model claims determine.
Claims (4)
1. a low-voltage comprehensive distribution box wiring system, comprise and be arranged on outdoor casing, it is characterized in that: in described casing, be provided with inlet wire bus (1), outlet bus (2) and idle compensating control (3), described inlet wire bus (1) is connected with outlet bus (2) through breaker of plastic casing QF1, current transformer TA1 successively, and the output of described current transformer TA1 is connected with the electric energy meter be arranged in casing (5) through concentrator (4); Described outlet bus (2) is connected with outlet branch road (6) and reactive compensation unit (7), described reactive compensation unit (7) comprises three-phase and compensates branch road and phase splitting compensation branch road, described phase splitting compensation branch road comprises combination switch FK1 and capacitor C2, the end of incoming cables of described combination switch FK1 is connected with outlet bus (2) through breaker of plastic casing QF5, and its leading-out terminal is connected with phase splitting compensation capacitor C2; The terminals of described idle compensating control (3) are connected with phase splitting compensation capacitor C2 with current transformer TA1, outlet bus (2) respectively by cable, for gathering voltage signal on the current signal of current transformer TA1 and outlet bus (2) to control the automatic switching of phase splitting compensation capacitor C2.
2. low-voltage comprehensive distribution box wiring system according to claim 1, it is characterized in that: described three-phase compensates branch road and comprises combination switch FK2 and three-phase compensation capacitor C1, the end of incoming cables of described combination switch FK2 is connected with the leading-out terminal of breaker of plastic casing QF5, and its leading-out terminal is connected with three-phase compensation capacitor C1.
3. low-voltage comprehensive distribution box wiring system according to claim 1, it is characterized in that: described outlet branch road (6) is at least three tunnels, every bar outlet branch road (6) is connected with respectively residual current action breaker (61) and branch current instrument transformer (62) in turn.
4. low-voltage comprehensive distribution box wiring system according to claim 1, is characterized in that: (2) are connected with Surge Protector SPD to described outlet bus, and the leading-out terminal of described breaker of plastic casing QF5 is connected with lightning arrester FB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520635626.XU CN204966980U (en) | 2015-08-23 | 2015-08-23 | Block terminal wiring system is synthesized to low pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520635626.XU CN204966980U (en) | 2015-08-23 | 2015-08-23 | Block terminal wiring system is synthesized to low pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966980U true CN204966980U (en) | 2016-01-13 |
Family
ID=55062021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520635626.XU Expired - Fee Related CN204966980U (en) | 2015-08-23 | 2015-08-23 | Block terminal wiring system is synthesized to low pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017642A (en) * | 2017-04-01 | 2017-08-04 | 国家电网公司 | A kind of low-voltage comprehensive distribution box for improving power supplying efficiency |
-
2015
- 2015-08-23 CN CN201520635626.XU patent/CN204966980U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017642A (en) * | 2017-04-01 | 2017-08-04 | 国家电网公司 | A kind of low-voltage comprehensive distribution box for improving power supplying efficiency |
| CN107017642B (en) * | 2017-04-01 | 2023-09-01 | 国家电网公司 | Low-voltage comprehensive distribution box capable of improving power supply efficiency |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20170823 |