CN107039896A - A kind of high-acruracy survey ring main unit - Google Patents
A kind of high-acruracy survey ring main unit Download PDFInfo
- Publication number
- CN107039896A CN107039896A CN201710396499.6A CN201710396499A CN107039896A CN 107039896 A CN107039896 A CN 107039896A CN 201710396499 A CN201710396499 A CN 201710396499A CN 107039896 A CN107039896 A CN 107039896A
- Authority
- CN
- China
- Prior art keywords
- current transformer
- cabinet
- main unit
- ring main
- acruracy survey
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The present invention relates to a kind of high-acruracy survey ring main unit, electrical part including cabinet and in cabinet, the multiple tapered heads of cable indoor location of cabinet, a current transformer is respectively mounted on each tapered head, the centre bore coaxial package of the current transformer is on tapered head, the base of all current transformers in each cable vault is fastened by bolts on an installing plate, the installing plate is made into integration by transverse slat and riser, the base of current transformer is installed on transverse slat, and the riser is connected by bolt with side cabinet.The present invention is a kind of high-acruracy survey ring main unit, this smart structural design, solve tradition and wear the problem of existing when cable type current transformer is used, using that can improve measurement accuracy, reduction use cost after this structure, provide facility for construction and installation, it is especially suitable for using in the case of using double cables in an interval.
Description
Technical field
The present invention relates to electrical equipment technical field, especially a kind of high-acruracy survey ring main unit.
Background technology
Ring main unit is one group of transmission ＆ distribution electrical equipment (high-tension switch gear) in metal or non-metallic insulation cabinet or done
Into the electrical equipment of assembled compartment ring network power supplying units, its core uses on-load switch and fuse, with structure letter
List, small volume, price are low, the advantages of can improve power supply parameter and performance and power supply safety.It is widely used in city and lived
In the power distribution station and box-type substation of the load centers such as residence cell, skyscraper, large public building, factory and enterprise.
User is frequently encountered the situation using double cables in an interval, because his sampling is mutual when using ring main unit
Sensor is arranged on cable, is so accomplished by every cable wearing one group, two cables will wear two groups of transformers, i.e.,：
There is tapered head in the cable vault of cabinet, cable is directly installed on tapered head, then fastened by clamp, wear cable type electric current
Transformer passes through cable suspension then to need two groups to wear cable type current transformer on cable, during if double cables and is each passed through electricity
Cable, is suspended on cable.So his current signal is composite value, inaccurate, and cost is also higher, installs inconvenient.
The content of the invention
It is an object of the invention to make up in place of the deficiencies in the prior art that there is provided one kind measurement accuracy, saving can be improved
The high-acruracy survey ring main unit that cost and convenient construction are installed.
The purpose of the present invention is realized by following technological means：
Pacify in a kind of high-acruracy survey ring main unit, including cabinet and the electrical part in cabinet, the cable vault of cabinet
Fill multiple tapered heads, it is characterised in that：A current transformer, the centre bore of the current transformer are respectively mounted on each tapered head
Coaxial package is on tapered head, and the base of all current transformers in each cable vault is fastened by bolts installed in one
On installing plate, the installing plate is made into integration by transverse slat and riser, and the base of current transformer is installed on transverse slat, and the riser leads to
Bolt is crossed to be connected with side cabinet.
Moreover, the center-hole diameter of described current transformer is than the existing diameter for wearing cable type current transformer centre bore
Greatly.
Moreover, having activity surplus between described riser and side cabinet.
Advantages and positive effects of the present invention are：
1st, the centre bore of current transformer of the present invention is bigger than original cable type transformer of wearing, and can be enclosed on looped network
On the tapered head of cabinet, therefore one group of current transformer can also measure total electric current in double cables, and this design can be greatly improved
Measurement accuracy.
2nd, the present invention is simple in construction, improve reasonable, convenient construction installs, and has not both interfered with the overall general layout of existing ring main unit
Distribution, will not increase the use burden of staff, also save cost again.
3rd, the present invention is a kind of high-acruracy survey ring main unit, this smart structural design, and solving tradition, to wear cable type electric current mutual
The problem of existing when sensor is used, using can improve measurement accuracy, reduction use cost after this structure, provide for construction and installation
It is convenient, it is especially suitable for using in the case of using double cables in an interval.
Brief description of the drawings
Fig. 1 is front view (broken section) of the invention；
Fig. 2 is Fig. 1 side view (broken section).
Embodiment
Describe embodiments of the invention in detail below in conjunction with the accompanying drawings；It should be noted that the present embodiment is narrative, no
It is limited, it is impossible to which protection scope of the present invention is limited with this.
A kind of high-acruracy survey ring main unit, including cabinet 1 and the electrical part in cabinet, due to cabinet and electrical part
It is not related to innovation improvements etc. structure and annexation, therefore to its structure without repeating, the cable indoor location of cabinet
Multiple tapered first 4, each it is respectively mounted a current transformer 2, the center-hole diameter (76mm) of the current transformer on tapered head
Than the existing diameter (55mm) for wearing cable type current transformer centre bore greatly, therefore the centre bore coaxial package of current transformer exists
On tapered head.
The base of all current transformers in each cable vault is securedly mounted on an installing plate by bolt 5,
The installing plate is that have mounting hole on the L-shaped structure being made into integration by transverse slat 3 and riser 6, the base of current transformer, logical with transverse slat
Cross bolt to be fastenedly connected, riser reserves connecting hole, and is connected with the side plate 8 of cabinet by bolt 7, and bolt can not during connection
Fastening, makes it have the surplus of activity, i.e., have gap between riser and side cabinet, can be random during facilitating end to insert
Adjustment position.
The present invention operation principle be：
The centre bore of the current transformer used in the present invention is bigger than original cable type transformer of wearing, and can so be enclosed on cone
On type head, and there is mounting hole in transformer bottom, can be fastenedly connected with transformer installing plate by bolt, transformer
The side of installing plate is reserved connecting hole and is attached with side cabinet, and bolt can not be fastened during connection, it is had the surplus of activity,
During facilitating end to insert can random adjustment position, such one group of current transformer can also measure total electricity in double cables
Stream, can improve measurement accuracy, save cost, and convenient construction is installed.
Claims (3)
1. a kind of high-acruracy survey ring main unit, including cabinet and the electrical part in cabinet, the cable indoor location of cabinet
Multiple tapered heads, it is characterised in that：A current transformer is respectively mounted on each tapered head, the centre bore of the current transformer is same
Axle sleeve is on tapered head, and the base of all current transformers in each cable vault is fastened by bolts installed in a peace
Fill on plate, the installing plate is made into integration by transverse slat and riser, and the base of current transformer is installed on transverse slat, and the riser passes through
Bolt is connected with side cabinet.
2. a kind of high-acruracy survey ring main unit according to claim 1, it is characterised in that：In described current transformer
Heart bore dia is bigger than the existing diameter for wearing cable type current transformer centre bore.
3. a kind of high-acruracy survey ring main unit according to claim 1, it is characterised in that：Described riser and side cabinet
Between have activity surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710396499.6A CN107039896A (en) | 2017-05-31 | 2017-05-31 | A kind of high-acruracy survey ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710396499.6A CN107039896A (en) | 2017-05-31 | 2017-05-31 | A kind of high-acruracy survey ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107039896A true CN107039896A (en) | 2017-08-11 |
Family
ID=59539155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710396499.6A Pending CN107039896A (en) | 2017-05-31 | 2017-05-31 | A kind of high-acruracy survey ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107039896A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5864276A (en) * | 1996-08-29 | 1999-01-26 | Smiths Industries Public Limited Company | Current transformer assemblies |
| CN201036152Y (en) * | 2007-04-30 | 2008-03-12 | 大连北方互感器有限公司 | Voltage mutual inductor for looped network cabinet |
| CN101989730A (en) * | 2009-08-06 | 2011-03-23 | 广州霍斯通电气有限公司 | Preinstalled current transformer structure and power cabinet |
| CN202014029U (en) * | 2010-11-29 | 2011-10-19 | 广州亿盛电气科技有限公司 | Transformer protection ring network cabinet with compact structure |
| CN103943343A (en) * | 2013-01-22 | 2014-07-23 | 上海雷博司电气股份有限公司 | Current transformer for ring main unit |
| CN204117829U (en) * | 2014-09-18 | 2015-01-21 | 江苏科兴电器有限公司 | A kind of full working scope type low-voltage current mutual inductor |
| CN207801216U (en) * | 2017-05-31 | 2018-08-31 | 国网天津市电力公司 | A kind of mounting structure of bracket mount type current transformer suitable for switchgear |
-
2017
- 2017-05-31 CN CN201710396499.6A patent/CN107039896A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5864276A (en) * | 1996-08-29 | 1999-01-26 | Smiths Industries Public Limited Company | Current transformer assemblies |
| CN201036152Y (en) * | 2007-04-30 | 2008-03-12 | 大连北方互感器有限公司 | Voltage mutual inductor for looped network cabinet |
| CN101989730A (en) * | 2009-08-06 | 2011-03-23 | 广州霍斯通电气有限公司 | Preinstalled current transformer structure and power cabinet |
| CN202014029U (en) * | 2010-11-29 | 2011-10-19 | 广州亿盛电气科技有限公司 | Transformer protection ring network cabinet with compact structure |
| CN103943343A (en) * | 2013-01-22 | 2014-07-23 | 上海雷博司电气股份有限公司 | Current transformer for ring main unit |
| CN204117829U (en) * | 2014-09-18 | 2015-01-21 | 江苏科兴电器有限公司 | A kind of full working scope type low-voltage current mutual inductor |
| CN207801216U (en) * | 2017-05-31 | 2018-08-31 | 国网天津市电力公司 | A kind of mounting structure of bracket mount type current transformer suitable for switchgear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205141183U (en) | Personally line of ensuring safety with electroscopic function | |
| CN205791227U (en) | Charged for replacement UHV transmission line insulator chain tool set | |
| CN205646216U (en) | Insulation is tested denso and is established earth connection auxiliary rod | |
| CN104133103A (en) | Device for monitoring overhead wire load currents | |
| CN206876300U (en) | A kind of cable connector core temp measuring system based on monitoring cable grounding electric current | |
| CN207459659U (en) | Support device | |
| CN107039896A (en) | A kind of high-acruracy survey ring main unit | |
| CN207801216U (en) | A kind of mounting structure of bracket mount type current transformer suitable for switchgear | |
| CN205428682U (en) | Current transformer integrated device | |
| CN203178402U (en) | Novel current transformer test rod and test device | |
| CN210838134U (en) | Special earthing device of 400v air switch | |
| CN104314352A (en) | Compact composite material power transmission line tower | |
| CN204927809U (en) | Alternating current high tension switchgear | |
| CN204832290U (en) | Electric meter box | |
| CN202474753U (en) | Platform transformer bus laying support | |
| CN206400166U (en) | Cable fitting more than a kind of double cable OPGW of transformer station's single pole | |
| CN105356089A (en) | Ground wire installation structure | |
| CN206346561U (en) | A kind of single loop is arranged vertically anchor support | |
| CN204174992U (en) | Composite material compact transmission line shaft tower | |
| CN205069357U (en) | Self -power computer current transformer for protection device | |
| CN204729884U (en) | Communication machine box adjustable hoop assembly | |
| CN211399104U (en) | Concentrator fixing support | |
| CN206774747U (en) | Air switch multiloop lead wiring terminal | |
| CN104124644B (en) | A kind of charged for replacement 110kV strain insulator string bilateral hook bottle supporting Work tool | |
| CN208077776U (en) | A kind of power supply mutual inductor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170811 |