CN203367840U - Outdoor distribution transformer low-voltage protection switch box - Google Patents
Outdoor distribution transformer low-voltage protection switch box Download PDFInfo
- Publication number
- CN203367840U CN203367840U CN 201320321195 CN201320321195U CN203367840U CN 203367840 U CN203367840 U CN 203367840U CN 201320321195 CN201320321195 CN 201320321195 CN 201320321195 U CN201320321195 U CN 201320321195U CN 203367840 U CN203367840 U CN 203367840U
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- chamber
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- voltage protection
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Abstract
The utility model discloses an outdoor distribution transformer low-voltage protection switch box which comprises a box body and wiring terminals located outside the box body, wherein the box body is composed of a distribution switch chamber, a metering chamber and a measuring chamber. The distribution switch chamber is internally provided with a fuse type isolating switch, metering transformers and a power surge protector, wherein the fuse type isolating switch has an energy storage mechanism; the metering chamber is internally provided with a distribution monitoring terminal, an electric energy meter and a secondary junction box; the measuring chamber is internally provided with an indicating lamp, a voltmeter and an ammeter; and elements in the distribution switch chamber, the metering chamber and the measuring chamber are connected by copper wires. The outdoor distribution transformer low-voltage protection switch box can be used as a protection device for short circuit and overload of a low-voltage power grid, can start and cut off the low-voltage power grid through 'switching-on' and 'switching-off' operations and has a distribution detection function.
Description
Technical field
The utility model belongs to the power distribution technical field, is specifically related to a kind of
,for distribution transformer low-pressure line-outgoing side protection with distribution line " divides ", " closing " control switch and electric energy metrical.
Background technology
Be provided with the casing of switch with knifeshaped fuse chamber and Capacity control chamber in existing outdoor distribution low-voltage protection switch case; Indoor lightning arrester, switch with knifeshaped fuse, the current transformer of arranging of switch with knifeshaped fuse, the Capacity control chamber is provided with binding post, intellectual electric power capacitor, reactive controller, active electric energy meter.Be provided with panel switches chamber, measuring room and measuring chamber casing in outdoor distribution low-voltage protection switch case of the present utility model, indoor fuse disconnecting switch, metering instrument transformer and the surge protector of being provided with of described panel switches, described fuse disconnecting switch is with bidirectional energy-storage mechanism; Be provided with monitoring of electric power terminal, collector in described measuring room, concentrator, electric energy meter and secondary terminal box.
The utility model content
The purpose of this utility model is to provide a kind of outdoor distribution transforming
low pressurethe protection switch case, both can make the protective device of the over load of low voltage electric network, again can be by operation its " divide ", " closing " realize the input of low voltage electric network and cut off and move, and having the distribution measuring ability.
For achieving the above object, the technical solution adopted in the utility model: this open air distribution low-voltage protection switch case, there is casing and be positioned at the outer binding post of casing, it is characterized in that: described casing consists of panel switches chamber, measuring room and measuring chamber, indoor fuse disconnecting switch, metering instrument transformer and the surge protector of being provided with of described panel switches, described fuse disconnecting switch is with stored energy mechanism; Be provided with monitoring of electric power terminal, electric energy meter and secondary terminal box in described measuring room; Be provided with indicator light, voltmeter and ammeter in described measuring chamber, described panel switches chamber, measuring chamber and the element in measuring room are connected by copper conductor.
Wicket and the observation window that can open and be convenient to observation is equipped with in described casing side.
Described fuse disconnecting switch connects the handle stretched out outside casing.
Adopt the beneficial effect of technique scheme: this open air distribution low-voltage protection switch case consists of panel switches chamber, measuring room and measuring chamber, and each indoor part is spaced from each other to be avoided influencing each other, have good rainproof, dirt exclusion capabilities.Isolating switch is provided with brake pull-rod, can divide on the ground closing operation, for just with observation and statistics distribution monitor data, wicket and observation window are housed in the casing side and can open and be convenient to observation.It is large that isolating switch has a drop-out current, and arc extinction performance is stable, the characteristics of long service life, and operating mechanism adopts stored energy mechanism, can realize distribution line quick-make and disjunction fast, can guarantee short circuit current that closure is large and shorter blow-out time.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Embodiment
This open air distribution low-voltage protection switch case, have casing 1, is respectively equipped with panel switches chamber 8, measuring room 14 and measuring chamber 9 in casing, and the outside of casing 1 is provided with the binding post 2 of outlet.Be provided with fuse disconnecting switch 5, current transformer 3 and surge protector 4 in described panel switches chamber 8.Be provided with monitoring of electric power terminal 13, electric energy meter and secondary terminal box 12 in described measuring room 14; Be provided with indicator light 11, voltmeter and ammeter 10 in described measuring chamber 9, described panel switches chamber, measuring chamber and the element in measuring room are connected by copper conductor.
Described panel switches chamber 8 masters advance, and fuse disconnecting switch is installed in outlet, and its pattern is fixed, and band bidirectional energy-storage mechanism, have overload protection and short-circuit protection function.Its over load protection adopts grid formula cartridge fuse-link as the fuse protection element; switch has reliable isolation features; contact fuse holder and movable blades unite two into one; whole fuse holder blade three-phase synchronous moves; when changing cartridge fuse-link; cutter head and live part are thoroughly isolated, have obvious cut-off point, have increased the fail safe that operating personnel change fuse.The pass of isolating switch, closing operation are used handle 7 to carry out outside case, make the operator avoid, in the face of electric arc, having guaranteed operator's personal safety.Simultaneously, the running status of switch outside case, have minute, the closing pointer indication.Operating mechanism is owing to adopting stored energy mechanism 6, makes to operate light, and the movable blades movement velocity is greater than 3 meter per seconds.Distribution line quick-make and disjunction fast be can realize, closed large short circuit current and shorter blow-out time guaranteed.Simultaneous Switching is furnished with arc-control device, improve its minute, arc extinction performance while closing a floodgate.Three current transformers in casing, its terminals of connecting wire can be connected with transformer terminal unit, and three-phase load is monitored.Lightning protection component is selected the surge protector 4 of low pressure, and protector is not with there is no isolating device between protected main body, and lightning protection meets the demands.
Be provided with electric energy meter, monitoring of electric power terminal 13, secondary terminal box 12 formation metering separate space in described measuring room 14, except line (primary line and secondary line) necessary passage (hole), the condition that does not have other can make the external world enter.The electric energy meter secondary circuit connects the employing copper conductor, and it is 4mm that current circuit connects sectional area of wire
2,, it is 2.5mm that voltage circuit connects sectional area of wire
2.
Be provided with indicator light 11 and voltage in described measuring chamber 9, ammeter 10 forms.Also described measuring chamber 9 can be integrated with measuring room 14.
Claims (3)
1. an outdoor distribution low-voltage protection switch case, there is casing and be positioned at the outer binding post of casing, it is characterized in that: described casing consists of panel switches chamber, measuring room and measuring chamber, indoor fuse disconnecting switch, metering instrument transformer and the surge protector of being provided with of described panel switches, described fuse disconnecting switch is with stored energy mechanism; Be provided with monitoring of electric power terminal, electric energy meter and secondary terminal box in described measuring room; Be provided with indicator light, voltmeter and ammeter in described measuring chamber, described panel switches chamber, measuring chamber and the element in measuring room are connected by copper conductor.
2. a kind of outdoor distribution low-voltage protection switch case as claimed in claim 1 is characterized in that: wicket and the observation window that can open and be convenient to observation is equipped with in described casing side.
3. a kind of outdoor distribution low-voltage protection switch case as claimed in claim 1 is characterized in that: described fuse disconnecting switch connects and stretches out the outer handle of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320321195 CN203367840U (en) | 2013-06-05 | 2013-06-05 | Outdoor distribution transformer low-voltage protection switch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320321195 CN203367840U (en) | 2013-06-05 | 2013-06-05 | Outdoor distribution transformer low-voltage protection switch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367840U true CN203367840U (en) | 2013-12-25 |
Family
ID=49815559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320321195 Expired - Fee Related CN203367840U (en) | 2013-06-05 | 2013-06-05 | Outdoor distribution transformer low-voltage protection switch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608949A (en) * | 2016-03-16 | 2016-05-25 | 国家电网公司 | Split type electric energy metering device and terminal installation wiring practical training apparatus |
| CN107611809A (en) * | 2017-09-25 | 2018-01-19 | 江苏其厚智能电气设备有限公司 | A kind of Miniature low-voltage comprehensive distribution box |
-
2013
- 2013-06-05 CN CN 201320321195 patent/CN203367840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608949A (en) * | 2016-03-16 | 2016-05-25 | 国家电网公司 | Split type electric energy metering device and terminal installation wiring practical training apparatus |
| CN107611809A (en) * | 2017-09-25 | 2018-01-19 | 江苏其厚智能电气设备有限公司 | A kind of Miniature low-voltage comprehensive distribution box |
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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: 20131225 |