CN108418166A - A kind of fixed short-circuit AC ice melting device of allocated radio change - Google Patents
A kind of fixed short-circuit AC ice melting device of allocated radio change Download PDFInfo
- Publication number
- CN108418166A CN108418166A CN201810291592.5A CN201810291592A CN108418166A CN 108418166 A CN108418166 A CN 108418166A CN 201810291592 A CN201810291592 A CN 201810291592A CN 108418166 A CN108418166 A CN 108418166A
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- Prior art keywords
- ice
- circuit
- short
- melt
- distribution transformer
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A kind of fixed short-circuit AC ice melting device of allocated radio change, including two groups of chopper switchs, short-circuit chopper switch at ice-melt distribution transformer, ice-melt distribution transformer.Two groups of chopper switchs, short-circuit chopper switch are separately positioned on ice-melt distribution line at the ice-melt distribution transformer, ice-melt distribution transformer.The ice-melt distribution transformer is directly installed on the shaft tower of setting, becomes fixed deicing device, avoids transport and the installation exercise amount of the deicing device in deicing processes；Two groups of chopper switchs at the ice-melt distribution transformer are converted for ice-melting mode；Installation exercise amount on the bar of drainage thread and wire jumper when the deicing device T in deicing processes being avoided to connect；The short circuit chopper switch is mounted on short-circuit point, is used for three-phase shortcircuit ice-melt, avoids dismounting workload on the bar of shorting stub in deicing processes.
Description
Technical field
The present invention relates to electrical engineering technical fields, and becoming short circuit exchange more particularly, to a kind of fixed allocated radio melts
Ice production apparatus.
Background technology
After the heavy losses of ice damage in 2008, a variety of ice-melting modes practices of south electric network tissue mainly have fixed DC ice-melt
Device, Vehicular direct-current de-icing, mobile station become decompression short circuit exchange ice-melt etc..Fixed DC deicing device is chiefly used in leading
Net ice-melt mostly uses Vehicular direct-current de-icing for distribution line and exchanges ice-melt with mobile station change decompression short circuit.Mobile station
It is exactly the distribution transformer that 10kV/400V is concatenated on 10kV power supplys to become decompression short circuit exchange de-icing method, is carried for DC ice-melting
For the ice-melt voltage of 400V.10kV overhead transmission lines are depressured by 10kV distribution transformings, and the power supply provided by system can be considered infinitely great, short
Roadlock is anti-to be considered as zero.The short circuit current of ice-melt line segment is determined according to the length (impedance) of melted circuit.But this wheeled apparatus
It has the disadvantage that：1. during real ice damage, because deicing device is difficult in place transportation condition complicated (or even road closure), or is arrived
The position time is long, even if 2. in place, also to there is sizable installation exercise amount, needs erecting bed to become, is dismounting drainage thread, wire jumper, short
The operations such as wiring take very long；3. site work environment is poor, shaft tower freezes, and job safety is very risky.Therefore, it is necessary to study
New ice-melt scheme is to meet the emergent demand of ice damage.
Invention content
The present invention provides a kind of fixed short-circuit AC ice melting device of allocated radio change, mitigates workload significantly, reduces operation
Security risk, take it is short, speed is fast, and work efficiency is high.The fixed deicing device equipment of installation is 10kV voltages simultaneously
Grade does not influence the normal operation of distribution line.
In order to reach above-mentioned technique effect, technical scheme is as follows：
A kind of fixed short-circuit AC ice melting device of allocated radio change, including ice-melt distribution transformer, the first ice-melt distribution become
Chopper switch at depressor, chopper switch, short-circuit chopper switch at the second ice-melt distribution transformer, it is characterised in that：The ice-melt
Distribution transformer is arranged on 10KV distribution line shaft towers；Chopper switch is arranged in 10kV circuits at first ice-melt distribution transformer
On, it is converted for ice-melting mode；Chopper switch is arranged in ice-melt distribution transformer 0.4kV circuits at second ice-melt distribution transformer
On, it is converted for ice-melting mode；Short-circuit chopper switch is arranged on 10kV circuit ice melting short dots.
Further, the ice-melt distribution transformer is arranged on 10KV distribution line shaft towers, and capacity is not less than
200KVA, as fixed ice-melt distribution transformer.
Further, chopper switch is arranged on 10kV circuits at the first ice-melt distribution transformer, is used for ice-melt side
Formula is converted, and is 10kV chopper switchs.
Further, ice-melt distribution transformer 0.4kV circuits are arranged in chopper switch at the second ice-melt distribution transformer
On, it is converted for ice-melting mode, is 10kV chopper switchs.
Further, the short-circuit chopper switch is arranged on 10kV circuit ice melting short dots, is used for three-phase shortcircuit ice-melt,
For 10kV chopper switchs.
Compared with prior art, the advantageous effect of technical solution of the present invention is：
Using the present invention program, deicing processes do not need any installation exercise amount, only need to operate three groups of chopper switchs,
Operation takes about 10 minutes, while mitigating workload significantly, reduces the security risk of operation, and time-consuming short, speed is fast, working efficiency
It is high.The technical solution may be used is used as ice-melt transformer in operation distribution transformer (no less than 200KVA), is thrown without special
Money.Since voltage is low, institute's connection transformer on ice-melt 10kV part of paths and low-voltage customer need not be isolated, greatly reduce behaviour
It measures so that operation is more easy, and timeliness is more preferable.
Description of the drawings
Fig. 1 is structure of the invention figure.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to more preferably illustrate that the present embodiment, the certain components of attached drawing have omission, zoom in or out, actual product is not represented
Size；
To those skilled in the art, it is to be appreciated that certain known features and its explanation, which may be omitted, in attached drawing
's.
The following further describes the technical solution of the present invention with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Figure 1, the present invention provides a kind of fixed short-circuit AC ice melting device of allocated radio change, match in the 10kV of setting
One 10kV/0.4kV distribution transformer 1 is installed, capacity is not less than 200kVA, becomes as fixed ice-melt on electric wire line pole tower
Depressor.Chopper switch 2 and chopper switch 3 are installed at ice-melt transformer, converted for ice-melting mode；It is short in the bar ice-melt of setting
Short-circuit chopper switch 4 is installed at waypoint, is used for three-phase shortcircuit ice-melt；Chopper switch 2 is disconnected when ice-melt, closes 3 He of chopper switch
Chopper switch 4 is just ice-melting mode.Chopper switch 2 is closed when not ice-melt, it is distribution wire to disconnect chopper switch 3 and chopper switch 4 just
Road normal operating mode.Since chopper switch 2, chopper switch 3, chopper switch 4 are to select 10kV chopper switchs, therefore do not influence to match
The normal operation of electric line.
The same or similar label correspond to the same or similar components；
Position relationship described in attached drawing is used to only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (5)
1. a kind of fixed allocated radio becomes short-circuit AC ice melting device, including ice-melt distribution transformer (1), the first ice-melt distribution become
Chopper switch (2) at depressor, chopper switch (3), short-circuit chopper switch (4) at the second ice-melt distribution transformer, it is characterised in that：
The ice-melt distribution transformer (1) is arranged on 10KV distribution line shaft towers；Chopper switch (2) at first ice-melt distribution transformer
It is arranged on 10kV circuits, is converted for ice-melting mode；Chopper switch (3) setting is matched in ice-melt at second ice-melt distribution transformer
On piezoelectric transformer 0.4kV circuits, converted for ice-melting mode；Short-circuit chopper switch (4) is arranged in 10kV circuit ice melting short dots
On.
2. fixed allocated radio according to claim 1 becomes short-circuit AC ice melting device, it is characterised in that：The ice-melt is matched
Piezoelectric transformer (1) is arranged on 10KV distribution line shaft towers, and capacity is not less than 200KVA, as fixed ice-melt distribution transformer
Device.
3. fixed allocated radio according to claim 2 becomes short-circuit AC ice melting device, it is characterised in that：Described first melts
Chopper switch (2) is arranged on 10kV circuits at ice distribution transformer, is converted for ice-melting mode, is 10kV chopper switchs.
4. fixed allocated radio according to claim 3 becomes short-circuit AC ice melting device, it is characterised in that：Described second melts
At ice distribution transformer on chopper switch (3) setting ice-melt distribution transformer 0.4kV circuits, is converted for ice-melting mode, be
10kV chopper switchs.
5. fixed allocated radio according to claim 4 becomes short-circuit AC ice melting device, it is characterised in that：The short circuit knife
Lock switchs (4) and is arranged on 10kV circuit ice melting short dots, is used for three-phase shortcircuit ice-melt, is 10kV chopper switchs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291592.5A CN108418166A (en) | 2018-03-30 | 2018-03-30 | A kind of fixed short-circuit AC ice melting device of allocated radio change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291592.5A CN108418166A (en) | 2018-03-30 | 2018-03-30 | A kind of fixed short-circuit AC ice melting device of allocated radio change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108418166A true CN108418166A (en) | 2018-08-17 |
Family
ID=63134123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810291592.5A Pending CN108418166A (en) | 2018-03-30 | 2018-03-30 | A kind of fixed short-circuit AC ice melting device of allocated radio change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108418166A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510629A (en) * | 2020-11-23 | 2021-03-16 | 广东电网有限责任公司清远供电局 | Line ice melting device and method |
| CN113964772A (en) * | 2021-11-03 | 2022-01-21 | 国网湖南省电力有限公司 | Ice melting system and ice melting method for 10kV distribution network line tail end ice-coated section |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205882638U (en) * | 2016-07-25 | 2017-01-11 | 国网湖南省电力公司 | Join in marriage electric network line ice -melt system |
| CN107394734A (en) * | 2017-08-30 | 2017-11-24 | 国网湖南省电力公司 | The exchange de-icing method of 35kV distribution network lines |
| CN207967887U (en) * | 2018-03-30 | 2018-10-12 | 广东电网有限责任公司清远供电局 | A kind of fixed short-circuit AC ice melting device of allocated radio change |
-
2018
- 2018-03-30 CN CN201810291592.5A patent/CN108418166A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205882638U (en) * | 2016-07-25 | 2017-01-11 | 国网湖南省电力公司 | Join in marriage electric network line ice -melt system |
| CN107394734A (en) * | 2017-08-30 | 2017-11-24 | 国网湖南省电力公司 | The exchange de-icing method of 35kV distribution network lines |
| CN207967887U (en) * | 2018-03-30 | 2018-10-12 | 广东电网有限责任公司清远供电局 | A kind of fixed short-circuit AC ice melting device of allocated radio change |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510629A (en) * | 2020-11-23 | 2021-03-16 | 广东电网有限责任公司清远供电局 | Line ice melting device and method |
| CN113964772A (en) * | 2021-11-03 | 2022-01-21 | 国网湖南省电力有限公司 | Ice melting system and ice melting method for 10kV distribution network line tail end ice-coated section |
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