CN201038605Y - Transformer integral distribution box for countryside - Google Patents
Transformer integral distribution box for countryside Download PDFInfo
- Publication number
- CN201038605Y CN201038605Y CNU2007201099471U CN200720109947U CN201038605Y CN 201038605 Y CN201038605 Y CN 201038605Y CN U2007201099471 U CNU2007201099471 U CN U2007201099471U CN 200720109947 U CN200720109947 U CN 200720109947U CN 201038605 Y CN201038605 Y CN 201038605Y
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- CN
- China
- Prior art keywords
- copper bar
- lead
- branch
- distribution box
- leakage protective
- 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
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Abstract
The utility model relates to a country integration distribution box, mainly comprising a box body which is formed by a box cover, a box door and a box body. The profile of the box body is provided with a radiation hole; and for the circuit part in the box body: an incoming knife switch is connected with the upper end of a general protective fuse through a lead, and the lower end of the general protective fuse is connected with a copper bar and passes through a current mutual inductor and then is divided into three lines by a lead for the upper ends of three branch leakage protective contactors; moreover, the lower ends of the three branch leakage protective contactors are respectively connected with the upper end of the corresponding branch breaker through a lead, and the lower ends of the branch breakers are respectively connected with the upper ends of the three branch fuses through a copper bar. Besides, the current mutual inductor is arranged on the copper bar at the lower end of the general protective fuse. The utility model has advantages that the country integration distribution box is applicable to the general protection and the branch protection for the wire outlet at the lower voltage side of the transformer as well as reaction power compensation for the line, thereby improving the power factor and reducing the line loss; moreover, the utility model has such characteristics as safe operation and comprehensive mechanism, thereby being in particular applicable to the country.
Description
Technical field
The utility model relates to a kind of distribution box, and especially a kind of rural area becomes comprehensive distribution box.
Background technology
The rural area becomes comprehensive distribution box and is applicable to that the step down side outlet always protects, and divides protection and capacitance compensation usefulness, and present rural area becomes comprehensive distribution box switch-box structure and disperses, and uses inconveniently, and reliability is relatively poor.
The utility model content
The utility model has solved above-mentioned technological deficiency, provides a kind of easy to use and safe and reliable rural area to become comprehensive distribution box.
The technical scheme in the invention for solving the technical problem: this rural area becomes comprehensive distribution box, mainly comprises casing, and casing mainly is made up of case lid, chamber door and case body, on the side of case body louvre is arranged; Circuit part in the casing: inlet wire to knife switch is connected to total protection fuse upper end by lead, total protection fuse lower end connection copper bar passes current transformer and is divided into 3 road to 3 branch earth leakage protective contactors upper ends by lead, 3 branch earth leakage protective contactor lower ends respectively are connected to corresponding shunt circuitbreaker upper end by lead, and each shunt circuitbreaker lower end connects 3 shunting fuse upper ends respectively by copper bar; Current transformer is installed on the copper bar of total protection fuse lower end.
Described total protection fuse lower end copper bar also connects miniature circuit breaker and lightning arrester, and miniature circuit breaker is connected to capacitor switching contactor, and capacitor switching contactor is connected to capacitor; Wherein zero line point of incoming cables copper bar is connected to earth leakage protective contactor chamber by lead, is wired in the outlet zero-emission again.
Be provided with instrument door and kilowatt-hour meter in the casing cell is installed, case body side is provided with one group of turnover line elbow.
The effect that the utility model is useful is: the rural area becomes comprehensive distribution box and is applicable to the total protection of step down side outlet and divides protection usefulness, and circuit is carried out reactive power compensation, improves power factor and reduces line loss; Have safe in utilizationly, characteristics such as mechanism is comprehensive are specially adapted to the rural area.
Description of drawings
Fig. 1 is a main TV structure schematic diagram of the present utility model;
Fig. 2 is a right TV structure schematic diagram of the present utility model;
Fig. 3 is the utility model circuit connection diagram;
Reference numeral: knife switch 1, always protect fuse 2, current transformer 3, branch earth leakage protective contactor 4, shunt circuitbreaker 5, shunting fuse 6, miniature circuit breaker 7, capacitor switching contactor 8, capacitor 9, lightning arrester 10, copper bar 11; Case lid 21, chamber door 22, case body 23, louvre 24, turnover line elbow 25.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in the figure, this rural area becomes comprehensive distribution box, mainly comprises casing, and casing mainly is made up of case lid 21, chamber door 22 and case body 23, and louvre 24 is arranged on the side of case body 23, and case body 23 sides are provided with one group of turnover line elbow 25.Circuit part in the casing comprises major loop and secondary control loop, wherein in the major loop: inlet wire to knife switch 1 is connected to total protection fuse 2 upper ends by lead, total protection fuse 2 lower ends connection copper bar 11 passes current transformer 3 and is divided into 3 road to 3 branch earth leakage protective contactor 4 upper ends by lead, 3 branch earth leakage protective contactor 4 lower ends respectively are connected to corresponding shunt circuitbreaker 5 upper ends by lead, and each shunt circuitbreaker 5 lower end connects 3 shunting fuse 6 upper ends respectively by copper bar 11; Current transformer 3 is installed on the copper bar of total protection fuse 2 lower ends.Described total protection fuse 2 lower end copper bars also connect miniature circuit breaker 7 and lightning arrester 10, and miniature circuit breaker 7 is connected to capacitor switching contactor 8, and capacitor switching contactor 8 is connected to capacitor 9; Wherein zero line point of incoming cables copper bar is connected to earth leakage protective contactor chamber by lead, uses lead (passing the current transformer that RCD carries) to be connected in the outlet zero-emission again.
In the secondary control loop:
Voltage circuit: pass through the second protection fuse to voltage change-over switch from total protection fuse 2 lower ends, voltage change-over switch is to voltmeter;
Current measurement circuit: current transformer 3 is to ammeter, and ammeter is again to current transformer 3 ground connection then;
Compensation circuit: B, C phase voltage are crossed the secondary fuse to reactive-load compensator, and A phase sampled current transformer 3 arrives reactive-load compensator again to terminal, and each road outlet of reactive-load compensator is to exchanging contactor coil, coil connecting to neutral line;
The earth leakage protective loop: earth leakage protective contactor 4 upper end A phase voltages are crossed the secondary fuse to back panel wiring 2, and N is to back panel wiring; RCD docks with the self-sustaining contactor is inner;
Measurement loop: voltage causes terminal box again to kilowatt-hour meter from total fuse 2; Electric current causes terminal box from metering instrument transformer (power department installation), again to kilowatt-hour meter;
Operation principle:
Knife switch can always cut-off circuit; Total protection fuse can always be protected circuit; The earth leakage protective contactor can be protected line electrical leakage; Divide circuit breaker and divide fuse that outlet is protected; By voltage change-over switch and voltmeter, convertible each phase voltage and check each phase voltage value; Ammeter can show each phase current size; Compensator preestablishes compensation range and obtains voltage and sampling current, and along with the variation of sampling current, each road electric capacity of control capacitance contactor switching satisfies the demand that compensates automatically;
Service condition:
1. the voltage ripple of power network scope is 85%～130% of a rated voltage
Ambient temperature be not higher than+40 ℃, be not less than-5 ℃, the mean temperature in 24 hours is not higher than+35 ℃
3. indoor installation, height above sea level is not higher than 2000m.
4. surrounding air relative humidity is no more than 50% when the highest, can allow relative humidity to improve when low.
5. when installing and the vertical plane gradient be no more than 5%.
In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (3)
1. a rural area becomes comprehensive distribution box, mainly comprises casing, and it is characterized in that: casing mainly is made up of case lid (21), chamber door (22) and case body (23), and louvre (24) is arranged on the side of case body (23); Circuit part in the casing: inlet wire to knife switch (1) is connected to total protection fuse (2) upper end by lead, total protection fuse (2) lower end connection copper bar (11) passes current transformer (3) and is divided into 3 road to 3 branch earth leakage protective contactors (4) upper end by lead, 3 branch earth leakage protective contactors (4) lower end respectively is connected to corresponding shunt circuitbreaker (5) upper end by lead, and each shunt circuitbreaker (5) lower end connects 3 shunting fuses (6) upper end respectively by copper bar (11); Current transformer (3) is installed on the copper bar of total protection fuse (2) lower end.
2. rural area according to claim 1 becomes comprehensive distribution box, it is characterized in that: described total protection fuse (2) lower end copper bar also connects miniature circuit breaker (7) and lightning arrester (10), miniature circuit breaker (7) is connected to capacitor switching contactor (8), and capacitor switching contactor (8) is connected to capacitor (9); Wherein zero line point of incoming cables copper bar is connected to earth leakage protective contactor chamber by lead, is wired in the outlet zero-emission again.
3. rural area according to claim 1 becomes comprehensive distribution box, it is characterized in that: described case body (23) side is provided with one group of turnover line elbow (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201099471U CN201038605Y (en) | 2007-05-28 | 2007-05-28 | Transformer integral distribution box for countryside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201099471U CN201038605Y (en) | 2007-05-28 | 2007-05-28 | Transformer integral distribution box for countryside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038605Y true CN201038605Y (en) | 2008-03-19 |
Family
ID=39211129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201099471U Expired - Fee Related CN201038605Y (en) | 2007-05-28 | 2007-05-28 | Transformer integral distribution box for countryside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038605Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074918A (en) * | 2010-11-24 | 2011-05-25 | 襄城县供电局 | Electricity utilization branching device |
| CN103475008A (en) * | 2013-09-27 | 2013-12-25 | 广东北江开关厂有限公司 | Reactive power compensation system of low-voltage power distribution network |
| CN104112992A (en) * | 2014-08-11 | 2014-10-22 | 广西鼎轩科技有限公司 | Shell device for local reactive power compensation |
| CN107453244A (en) * | 2017-09-29 | 2017-12-08 | 大成电气有限公司 | A kind of three-in-one distribution box |
| CN107681505A (en) * | 2016-08-02 | 2018-02-09 | 上海锐电电气有限公司 | Light distribution box |
| US11799272B2 (en) * | 2019-12-13 | 2023-10-24 | Eaton Intelligent Power Limited | Dual contactor electrical panelboard assembly, systems and methods |
-
2007
- 2007-05-28 CN CNU2007201099471U patent/CN201038605Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074918A (en) * | 2010-11-24 | 2011-05-25 | 襄城县供电局 | Electricity utilization branching device |
| CN103475008A (en) * | 2013-09-27 | 2013-12-25 | 广东北江开关厂有限公司 | Reactive power compensation system of low-voltage power distribution network |
| CN104112992A (en) * | 2014-08-11 | 2014-10-22 | 广西鼎轩科技有限公司 | Shell device for local reactive power compensation |
| CN107681505A (en) * | 2016-08-02 | 2018-02-09 | 上海锐电电气有限公司 | Light distribution box |
| CN107453244A (en) * | 2017-09-29 | 2017-12-08 | 大成电气有限公司 | A kind of three-in-one distribution box |
| CN107453244B (en) * | 2017-09-29 | 2023-11-10 | 陕西红石曼巴科技有限公司 | Three-in-one distribution box |
| US11799272B2 (en) * | 2019-12-13 | 2023-10-24 | Eaton Intelligent Power Limited | Dual contactor electrical panelboard assembly, systems and methods |
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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: 20080319 Termination date: 20160528 |