JP3184431B2 - Gas insulated stationary induction cooler - Google Patents
Gas insulated stationary induction coolerInfo
- Publication number
- JP3184431B2 JP3184431B2 JP19144095A JP19144095A JP3184431B2 JP 3184431 B2 JP3184431 B2 JP 3184431B2 JP 19144095 A JP19144095 A JP 19144095A JP 19144095 A JP19144095 A JP 19144095A JP 3184431 B2 JP3184431 B2 JP 3184431B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- cooler
- cooling
- blower
- tank
- 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
Links
Landscapes
- Transformer Cooling (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はガス絶縁静止誘導電器の
冷却装置に係り、特に、ＳＦ6 ガス等で絶縁され、か
つ、水冷式冷却器によって冷却される例えば変圧器，リ
アクトル等に好適なガス絶縁静止誘導電器の冷却に関す
る。The present invention relates relates to a cooling device for a gas insulated stationary induction apparatus, in particular, insulated with SF 6 gas or the like, and, for example, a transformer is cooled by the water-cooled condenser suitable reactor such as The present invention relates to cooling of a gas-insulated stationary induction device.
【０００２】[0002]
【従来の技術】最近の電力需要の増加に伴い、変電設備
は大容量化する傾向にあるが、地下変電所等に設置され
るガス絶縁変圧器についても大容量化の要求がある。2. Description of the Related Art With the recent increase in power demand, substation facilities tend to have a large capacity. However, there is a demand for a large capacity of a gas insulated transformer installed in an underground substation or the like.
【０００３】ガス絶縁変圧器に絶縁媒体として使用され
るＳＦ6 ガスは、密度，比熱，熱伝導率などの冷却性能
に関する物性値が、液状絶縁冷却媒体に比べ小さいため
に一般には冷却性能が悪い。[0003] SF 6 gas used as an insulating medium in a gas-insulated transformer generally has poor cooling performance because physical properties related to cooling performance such as density, specific heat, and thermal conductivity are smaller than liquid insulating cooling media. .
【０００４】このため、大容量ガス絶縁変圧器では、冷
却媒体であるＳＦ6 ガスの圧力を高めて密度を大きくし
変圧器を小型化することができる。更に、ＳＦ6 ガスの
体積流量を多く流して流速を大きくして冷却性能を向上
する方法が取られる。For this reason, in a large-capacity gas-insulated transformer, the pressure of SF 6 gas as a cooling medium can be increased to increase the density and reduce the size of the transformer. Further, a method of improving the cooling performance by increasing the flow rate by increasing the volume flow rate of SF 6 gas is adopted.
【０００５】大容量ガス絶縁変圧器では、発熱量が大き
いため製作，運搬，取付等の容易さから冷却媒体である
循環ガスの冷却には、例えば、特開平2−234404 号公報
のように、一定容量の冷却器本体とその冷却器の容量に
相当するガスブロワを各ガスブロワの出口に付け、変圧
器タンク内の発熱量に見あった容量分を複数台設置して
いる。A large-capacity gas-insulated transformer generates a large amount of heat, so that it is difficult to manufacture, transport, and mount the circulating gas, which is a cooling medium, for example, as disclosed in Japanese Patent Application Laid-Open No. 2-234404. A cooler body having a fixed capacity and gas blowers corresponding to the capacity of the cooler are attached to the outlets of the gas blowers, and a plurality of capacities corresponding to the amount of heat generated in the transformer tank are installed.
【０００６】あるいは、変圧器タンクから、複数本の配
管よりガスを取りだし、一旦ガスの集合管に導き、この
集合管から複数本のガス配管により冷却器へ導き、各冷
却器からガス配管により冷却器に付属のガスブロワへ導
いて、更にガスブロワより集合管にガスを集め、変圧器
タンク内へガスを送入する構成とするのが一般的であ
る。Alternatively, gas is taken out from a plurality of pipes from a transformer tank, led to a gas collecting pipe, led to a cooler through a plurality of gas pipes from this collecting pipe, and cooled from each cooler by a gas pipe. In general, the gas is guided to a gas blower attached to the vessel, the gas is further collected from the gas blower into a collecting pipe, and the gas is sent into the transformer tank.
【０００７】[0007]
【発明が解決しようとする課題】このような構成のガス
絶縁変圧器の冷却装置では、冷却器１台にガスブロワ１
台が付くため、ガスブロワが故障した場合、そのガスブ
ロワが受け持つ冷却器にはガスが流れなくなり、変圧器
の冷却性能が低下する。また、上記ガス集合管がある場
合は、ガスブロワ１台の故障により、故障しないガスブ
ロワからのガスが、ガスブロワ出口側集合配管を通って
故障したガスブロワ側へ流れ込み、冷却器を逆流してガ
スブロワへ再循環する可能性があるため、逆止弁等の機
器を設ける必要が生じ、冷却系統が大型化する。それに
伴い、ガス絶縁変圧器全体が大型化し、地下変電所に設
置する場合には掘削面積が大きくなるため建設コストが
増大するといった欠点があった。In the cooling apparatus for a gas-insulated transformer having such a configuration, one cooler is provided with a gas blower.
If the gas blower breaks down, the gas stops flowing to the cooler assigned to the gas blower, and the cooling performance of the transformer deteriorates. If the gas collecting pipe is provided, the gas from the gas blower that does not fail flows into the failed gas blower through the gas blower outlet collecting pipe due to the failure of one gas blower, and flows back to the gas blower through the cooler. Since there is a possibility of circulation, it is necessary to provide a device such as a check valve, and the cooling system becomes large. As a result, the entire gas-insulated transformer becomes large, and when it is installed in an underground substation, there is a disadvantage that the excavation area becomes large and the construction cost increases.
【０００８】本発明は上述の点に鑑みなされたもので、
その目的とするところは、上記した欠点をなくし、冷却
ガスを流すガスブロワが故障した場合であっても冷却性
能を確保し、かつ、ガス絶縁静止誘導電器のタンク周辺
の配管を含めた冷却装置全体を単純で小型化すると共
に、地下変電所に採用する場合でも建設コストを必要最
小限に抑えることのできるガス絶縁静止誘導電器の冷却
装置を提供するにある。[0008] The present invention has been made in view of the above points,
Its purpose is to eliminate the above disadvantages and cool
Even if the gas blower that flows the gas breaks down, the cooling performance is secured even if the gas blower breaks down, and the entire cooling system, including the piping around the tank of the gas-insulated stationary induction device, is simplified and miniaturized, and is adopted for an underground substation. It is an object of the present invention to provide a cooling device for a gas-insulated stationary induction device that can minimize the construction cost even in such a case.
【０００９】[0009]
【課題を解決するための手段】本発明では、上記目的を
達成するために、少なくとも巻線と鉄心からなる中身本
体を収納するタンク内の絶縁ガスをガス用配管を介して
ガスブロワで循環させ、前記ガス用配管の途中に配置さ
れ 、 循環される冷却媒体と放熱器からの冷却水との熱交
換を行い絶縁ガスを冷却する冷却器を１台とし、この冷
却器と前記タンクを複数本の配管で接続してタンク内の
絶縁ガスを冷却器に導くと共に 、 前記１台の冷却器に複
数のガスブロワをバルブを介して接続し 、 この複数台の
ガスブロワの少なくとも１台が故障した際には 、 前記バ
ルブを閉じることにより前記故障ガスブロワと冷却器と
のガス経路が切り離され、残りのガスブロワにタンク内
の絶縁ガスが前記冷却器の冷却部を共用して導かれるガ
ス絶縁静止誘導電器の冷却装置としたことを特徴とす
る。According to the present invention, there is provided the above-mentioned object.
In order to achieve, a content book consisting of at least a winding and an iron core
Insulating gas in the tank containing the body is passed through the gas piping
Circulated with a gas blower, placed in the middle of the gas pipe
Is, heat exchange between the cooling water from the radiator and the circulation is the cooling medium
And a single cooler to cool the insulating gas.
And the tank are connected by multiple pipes.
Guides the insulating gas to the cooler, double the single cooler
The number of gas blower is connected via a valve, the plurality of
When at least one gas blower fails, the server
By closing the lube, the failed gas blower and the cooler
Gas path is cut off and the remaining gas blower is
Of the cooling gas of the cooling device
It is characterized in that it is a cooling device for an insulated stationary induction device .
【００１０】[0010]
【００１１】[0011]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。An embodiment of the present invention will be described below with reference to the drawings.
【００１２】図１、及び図２は本発明のガス絶縁静止誘
導電器の冷却装置の一実施例であるガス絶縁変圧器の冷
却装置を示す図である。FIGS. 1 and 2 show a cooling device for a gas-insulated transformer, which is an embodiment of a cooling device for a gas-insulated stationary induction device according to the present invention.
【００１３】該図において、変圧器タンク１には、鉄心
１０５と巻線１０６などから構成される変圧器中身本体
と絶縁ガスなどが封入してある。変圧器タンク１の外部
には、変圧器の冷媒となるガスを冷却する冷却器２と、
この冷却器２にそれぞれ接続され、モータ（図示せず）
で駆動されるガスブロワ３１及びガスブロワ３２が設け
られている。ガスブロワ３１のガスの出入口にはバルブ
４１，ガスブロワ３２のガスの出入口にはバルブ４２が
取り付けられ、ガス用配管５１あるいは５２を介して変
圧器タンク１と接続された構成でガスの循環経路を形成
する。In the figure, a transformer tank 1 is filled with a transformer body composed of an iron core 105 and a winding 106, and an insulating gas. Outside the transformer tank 1, a cooler 2 for cooling a gas serving as a refrigerant of the transformer,
A motor (not shown) connected to each of the coolers 2
A gas blower 31 and a gas blower 32 driven by are provided. A valve 41 is attached to the gas inlet / outlet of the gas blower 31, and a valve 42 is attached to the gas inlet / outlet of the gas blower 32, and a gas circulation path is formed by being connected to the transformer tank 1 via a gas pipe 51 or 52. I do.
【００１４】冷却器２は、冷却器用放熱器６から冷却水
バルブ１０と冷却器冷却水用配管８を介して流入する低
温度冷却水で、変圧器タンク１より流出しガス用配管５
１，５２を介して流入してきた高温ガスと熱交換を行い
低温になったガスを流出する。低温のガスはガスブロワ
３１、及びガスブロワ３２を介して再び変圧器タンク１
へ流入し変圧器の本体中身（鉄心１０５と巻線１０６
等）を冷却する。The cooler 2 is a low-temperature cooling water flowing from the cooler radiator 6 through the cooling water valve 10 and the cooler cooling water pipe 8, and flowing out of the transformer tank 1 to the gas pipe 5.
It exchanges heat with the high-temperature gas that has flowed in through 1 and 52 and discharges the low-temperature gas. The low-temperature gas is again supplied to the transformer tank 1 via the gas blower 31 and the gas blower 32.
To the transformer body (iron core 105 and winding 106
Cool).
【００１５】ガスブロワ３１、及び３２が共に正常であ
る場合には、変圧器タンク１より流出したガスはガス用
配管５１、及び５２を介して冷却器２に流入した後、独
立した冷却器出口より分流されガスブロワ３１、及び３
２へ均等配分された流量で流入する。When both of the gas blowers 31 and 32 are normal, the gas flowing out of the transformer tank 1 flows into the cooler 2 through the gas pipes 51 and 52, and then from the independent cooler outlet. Divided gas blowers 31 and 3
2 and flow into the flow at an evenly distributed flow rate.
【００１６】２台のガスブロワ３１，３２のうちの１台
のガスブロワ３１に故障が発生した場合には、ガスブロ
ワ３１の出入口のバルブ４１を閉じ、故障したガスブロ
ワ３１をガスの循環経路より切り離す。If one of the two gas blowers 31, 32 fails, the valve 41 at the inlet / outlet of the gas blower 31 is closed, and the failed gas blower 31 is disconnected from the gas circulation path.
【００１７】これによってガスの循環経路は、変圧器タ
ンク１よりガス配管５１、及び５２を介して冷却器２に
流れ込み、冷却器２の出口よりガスブロワ３２のみに流
出し、ガスを強制循環しているガスブロワは、ガスブロ
ワ３２の１台だけであるから冷却器２に流れるガスの流
量は正常時の１／２となる。As a result, the gas circulation path flows from the transformer tank 1 into the cooler 2 via the gas pipes 51 and 52, flows out only from the outlet of the cooler 2 to the gas blower 32, and forcibly circulates the gas. Since only one gas blower 32 is used, the flow rate of the gas flowing to the cooler 2 is １ ／ of that in the normal state.
【００１８】一般に、冷却器２の冷却能力はガスの流量
の約１／２乗に比例することが知られており、流量が１
／２になった場合には正常時の３／４の冷却能力が得ら
れる。これにより変圧器の運転容量の低下を８〜９割程
度にとどめることができる。この実施例においてはガス
ブロワの台数の制限はなく、変圧器タンク１と冷却器２
を接続するガス用配管の数についても制約はない。図３
はガス用配管を４本（５３〜５６）とり、ガスブロワを
４台（３３〜３６）接続した場合の冷却装置の概略図で
ある。In general, it is known that the cooling capacity of the cooler 2 is proportional to about 1/2 power of the gas flow rate.
When it becomes / 2, a cooling capacity of 3/4 of the normal state is obtained. As a result, it is possible to limit the reduction in the operating capacity of the transformer to about 80 to 90%. In this embodiment, the number of gas blowers is not limited, and the transformer tank 1 and the cooler 2 are not limited.
There is also no limitation on the number of gas pipes connecting the gas pipes. FIG.
FIG. 4 is a schematic diagram of a cooling device when four gas pipes (53 to 56) are used and four gas blowers (33 to 36) are connected.
【００１９】[0019]
【発明の効果】以上説明した本発明のガス絶縁静止誘導
電器の冷却装置によれば、冷却ガスを流すガスブロワが
故障した場合であっても冷却性能を確保し、かつ、ガス
絶縁静止誘導電器のタンク周辺の配管を含めた冷却装置
全体を単純で小型化すると共に 、 地下変電所に採用する
場合でも建設コストを必要最小限に抑えることができる
効果がある。 According to the cooling device for a gas-insulated stationary induction device of the present invention described above, a gas blower for flowing a cooling gas is provided.
Even if it breaks down, ensure cooling performance and
Cooling system including piping around tank of insulated stationary induction machine
As well as simple and reduce the size of the whole, it is employed in underground substation
Construction costs can be kept to a minimum
effective.
【図１】本発明の一実施例であるガス絶縁変圧器の冷却
装置を示す正面図である。FIG. 1 is a front view showing a cooling device for a gas-insulated transformer according to one embodiment of the present invention.
【図２】図１の側面図である。FIG. 2 is a side view of FIG.
【図３】本発明の他の実施例であるガス絶縁変圧器の冷
却装置を示す概略図である。FIG. 3 is a schematic view showing a cooling device for a gas-insulated transformer according to another embodiment of the present invention.
１…変圧器タンク、２，２０…冷却器、４…ガス配管用
バルブ、６…冷却器用放熱器、８…冷却器冷却水用配
管、１０…冷却水バルブ、３１，３２，３３，３４,３
５,３６…ガスブロワ、５１，５２…ガス用配管、１０
５…鉄心、１０６…巻線。DESCRIPTION OF SYMBOLS 1 ... Transformer tank, 2, 20 ... Cooler, 4 ... Gas piping valve, 6 ... Cooler radiator, 8 ... Cooler cooling water piping, 10 ... Cooling water valve, 31, 32, 33, 34, 3
5, 36: gas blower, 51, 52: gas piping, 10
5 ... iron core, 106 ... winding.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 坂元 健 茨城県日立市大みか町七丁目２番１号 株式会社 日立製作所 電力・電機開発 本部内 (72)発明者 関 良州 岡山県邑久郡邑久町下笠加488番地 多 田電機株式会社 岡山工場内 (56)参考文献 特開 平２−76208（ＪＰ，Ａ) 実開 昭57−50834（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01F 27/08 H01F 27/20 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeshi Sakamoto 7-2-1, Omika-cho, Hitachi City, Ibaraki Pref. Hitachi, Ltd. Power & Electric Equipment Development Division (72) Inventor Ryoshu Seki Oku-cho, Oku-gun, Okayama Prefecture 488 Shimodaka, Tada Electric Co., Ltd. Okayama Plant (56) References JP-A-2-76208 (JP, A) Jiroku Sho 57-50834 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) H01F 27/08 H01F 27/20
Claims (1)
納されている中身本体と、該中身本体を冷却する絶縁ガ
スと、前記タンク内の絶縁ガスをガス用配管を介して循
環させるガスブロワと、前記ガス用配管の途中に配置さ
れ、循環される冷却媒体と放熱器からの冷却水との熱交
換を行い絶縁ガスを冷却する冷却器と、前記放熱器から
の冷却水を前記冷却器に導く冷却水配管とを備えたガス
絶縁静止誘導電器の冷却装置において、前記冷却器を１台とし、この冷却器と前記タンクを複数
本の配管で接続してタンク内の絶縁ガスを冷却器に導く
と共に 、 前記１台の冷却器に複数のガスブロワをバルブ
を介して接続し 、 この複数台のガスブロワの少なくとも
１台が故障した際には 、 前記バルブを閉じることにより
前記故障ガスブロワと冷却器とのガス経路が切り離さ
れ、残りのガスブロワにタンク内の絶縁ガスが前記冷却
器の冷却部を共用して導かれる ことを特徴とするガス絶
縁静止誘導電器の冷却装置。1. A main body composed of at least a winding and an iron core and housed in a tank, an insulating gas for cooling the main body, and a gas blower for circulating the insulating gas in the tank via a gas pipe. A cooler that is disposed in the middle of the gas pipe and exchanges heat between a circulating cooling medium and cooling water from a radiator to cool an insulating gas , and guides cooling water from the radiator to the cooler. In a cooling device for a gas insulated stationary induction electric machine having a cooling water pipe, the cooling device is one, and the cooling device and the tank are provided in plural.
Connect with a pipe to guide the insulating gas in the tank to the cooler
With the valve a plurality of gas blower to the one cooler
Connected via at least of the plurality of gas blower
When one has failed, by closing the valve
The gas path between the failed gas blower and the cooler is disconnected.
The insulating gas in the tank is cooled by the remaining gas blower.
A cooling device for a gas-insulated stationary induction device, wherein the cooling device is guided by sharing a cooling unit of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19144095A JP3184431B2 (en) | 1995-07-27 | 1995-07-27 | Gas insulated stationary induction cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19144095A JP3184431B2 (en) | 1995-07-27 | 1995-07-27 | Gas insulated stationary induction cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0945541A JPH0945541A (en) | 1997-02-14 |
| JP3184431B2 true JP3184431B2 (en) | 2001-07-09 |
Family
ID=16274663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19144095A Expired - Fee Related JP3184431B2 (en) | 1995-07-27 | 1995-07-27 | Gas insulated stationary induction cooler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3184431B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8103313B2 (en) | 1992-11-09 | 2012-01-24 | Adc Technology Inc. | Portable communicator |
| KR101722133B1 (en) | 2015-04-14 | 2017-04-03 | 공주대학교 산학협력단 | A bullet suplling apparatus for airsoft |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779044B (en) * | 2013-12-17 | 2016-01-13 | 浙江金冠特种变压器有限公司 | Transformer Cooling oil seal cooling comprehensive refrigeration system |
-
1995
- 1995-07-27 JP JP19144095A patent/JP3184431B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8103313B2 (en) | 1992-11-09 | 2012-01-24 | Adc Technology Inc. | Portable communicator |
| KR101722133B1 (en) | 2015-04-14 | 2017-04-03 | 공주대학교 산학협력단 | A bullet suplling apparatus for airsoft |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0945541A (en) | 1997-02-14 |
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| LAPS | Cancellation because of no payment of annual fees |