CN207967887U - 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
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- CN207967887U CN207967887U CN201820450854.3U CN201820450854U CN207967887U CN 207967887 U CN207967887 U CN 207967887U CN 201820450854 U CN201820450854 U CN 201820450854U CN 207967887 U CN207967887 U CN 207967887U
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- ice
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- distribution transformer
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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 utility model is related to electrical engineering technical fields, and becoming short circuit more particularly, to a kind of fixed allocated radio hands over
Flow deicing device.
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 circuit
Impedance is 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 is deposited
In following disadvantage：1. during real ice damage, because complicated (or even road closure) deicing device of transportation condition is difficult in place, or in place when
Between it is long, even if 2. in place, also to there is sizable installation exercise amount, need erecting bed to become, dismounting drainage thread, wire jumper, shorting stub
Equal operations, take very long；3. site work environment is poor, shaft tower freezes, and job safety is very risky.It is new therefore, it is necessary to study
Ice-melt scheme is to meet the emergent demand of ice damage.
Utility model content
The utility model provides a kind of fixed short-circuit AC ice melting device of allocated radio change, mitigates workload significantly, reduces
The security risk of operation, time-consuming short, speed is fast, and work efficiency is high.The fixed deicing device equipment of installation is 10kV simultaneously
Voltage class does not influence the normal operation of distribution line.
In order to reach above-mentioned technique effect, the technical solution of the utility model 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 solutions of the utility model is：
Using the utility model, 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, work
Make efficient.The technical solution may be used is used as ice-melt transformer in operation distribution transformer (no less than 200KVA), is not necessarily to
Special investment.Since voltage is low, institute's connection transformer on ice-melt 10kV part of paths and low-voltage customer need not be isolated, be subtracted significantly
Few operating quantity so that operation is more easy, and timeliness is more preferable.
Description of the drawings
Fig. 1 is the utility model structure chart.
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 technical solution of the utility model is described further with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Figure 1, the utility model provides a kind of fixed short-circuit AC ice melting device of allocated radio change, in setting
One 10kV/0.4kV distribution transformer 1 is installed, capacity is not less than 200kVA, melts as fixed on 10kV distribution line shaft towers
Ice transformer.Chopper switch 2 and chopper switch 3 are installed at ice-melt transformer, converted for ice-melting mode；Melt in the bar of setting
The short-circuit chopper switch 4 of ice short-circuit point installation, is used for three-phase shortcircuit ice-melt；Chopper switch 2 is disconnected when ice-melt, closes chopper switch
3 and chopper switch 4 just be ice-melting mode.Chopper switch 2 is closed when not ice-melt, it is distribution to disconnect chopper switch 3 and chopper switch 4 just
Circuit normal operating mode.Since chopper switch 2, chopper switch 3, chopper switch 4 are to select 10kV chopper switchs, therefore do not influence
The normal operation of distribution 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, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
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 |
|---|---|---|---|
| CN201820450854.3U CN207967887U (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 |
|---|---|---|---|
| CN201820450854.3U CN207967887U (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 |
|---|---|
| CN207967887U true CN207967887U (en) | 2018-10-12 |
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ID=63726702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820450854.3U Active CN207967887U (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) | CN207967887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418166A (en) * | 2018-03-30 | 2018-08-17 | 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 CN201820450854.3U patent/CN207967887U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418166A (en) * | 2018-03-30 | 2018-08-17 | 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 |
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