JPS6244508Y2 - - Google Patents
Info
- Publication number
- JPS6244508Y2 JPS6244508Y2 JP1981138221U JP13822181U JPS6244508Y2 JP S6244508 Y2 JPS6244508 Y2 JP S6244508Y2 JP 1981138221 U JP1981138221 U JP 1981138221U JP 13822181 U JP13822181 U JP 13822181U JP S6244508 Y2 JPS6244508 Y2 JP S6244508Y2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- oil
- filled electrical
- buffer chamber
- filled
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Examining Or Testing Airtightness (AREA)
- Housings And Mounting Of Transformers (AREA)
Description
【考案の詳細な説明】
この考案は油入電気機器とガス入電気機器との
接続装置に関する。[Detailed Description of the Invention] This invention relates to a connection device between oil-filled electrical equipment and gas-filled electrical equipment.
通常油入変圧器、油入リアクトル、油入コンデ
ンサなどの油入電気機器は、絶縁油が大気圧又は
それより若干高く充填されており、又ガス管路、
ガス開閉装置などのガス入電気機器は、絶縁ガス
が数気圧乃至十数気圧程度に封入されている。し
たがつて、これら両機器を接続した場合、これら
の間の油・ガスの気密機構が何等かの原因で損な
われたとすると、絶縁ガスが油入電気機器側へ洩
れ、絶縁破壊などの致命的な事故を生じないよう
対策を施す必要がある。 Oil-filled electrical equipment such as oil-filled transformers, oil-filled reactors, and oil-filled capacitors are usually filled with insulating oil at atmospheric pressure or slightly higher than that, and gas pipes,
Gas-filled electrical equipment such as gas switchgears are filled with insulating gas at a pressure of several to more than ten atmospheres. Therefore, when these two devices are connected, if the oil/gas airtight mechanism between them is damaged for some reason, the insulating gas may leak into the oil-filled electrical device, causing dielectric breakdown or other fatal problems. It is necessary to take measures to prevent such accidents from occurring.
このため、従来では油入電気機器とガス入電気
機器との間に、絶縁油を満した中間油室を設け、
この油室の油量調整装置の接続管などを用いてガ
ス検出リレーを接続している。ところが、この構
成によれば、ガス検出リレーが、フロートにより
その接点がON−OFFされるものであることか
ら、油室に混入した絶縁ガスが気泡状に集合した
状態、すなわち気相と液相とが分離していないと
作用せず、したがつて絶縁ガスが絶縁油に少量ず
つ除々に混入し、溶解した状態では、エマルジヨ
ンとなつているのでその検出は困難である。特に
この傾向は、絶縁油に多量溶解されるSF6ガスを
用いた場合に著しい。 For this reason, in the past, an intermediate oil chamber filled with insulating oil was installed between oil-filled electrical equipment and gas-filled electrical equipment.
A gas detection relay is connected using the connection pipe of the oil volume adjustment device in this oil chamber. However, according to this configuration, since the contacts of the gas detection relay are turned ON and OFF by a float, the insulating gas mixed in the oil chamber collects in the form of bubbles, that is, the gas phase and the liquid phase. Therefore, the insulating gas gradually mixes into the insulating oil little by little, and when dissolved, it becomes an emulsion and is difficult to detect. This tendency is particularly remarkable when SF 6 gas, which is dissolved in large amounts in insulating oil, is used.
この考案は上述の事柄に鑑み、機器間に、両機
器に設けた絶縁スペーサを当接することによつて
形成される緩衝室を設け、この緩衝室内にガス入
電気機器内のガス圧力と異なるガス圧力の絶縁ガ
スを封入し、この緩衝室内とガス入電気機器内の
ガス圧力を検出し、比較することにより、接続部
をコンパクトに構成し、かつ高精度でガス入電気
機器の絶縁ガスの洩れを検出するようにしたもの
である。 In view of the above-mentioned issues, this invention provides a buffer chamber between devices, which is formed by abutting insulating spacers provided on both devices, and creates a gas inside the buffer chamber that is different from the gas pressure in the gas-filled electrical device. By filling a pressure insulating gas in the buffer chamber and detecting and comparing the gas pressure inside the gas-filled electrical equipment, the connection can be configured compactly and leakage of insulating gas from the gas-filled electrical equipment can be detected with high precision. It is designed to detect.
以下図示するこの考案の一実施例に基いて説明
すると、１は油入電気機器であるたとえば、油入
変圧器、２はガス入電気機器であるたとえば、導
体３を収納したガス管路である。４は絶縁油、５
は絶縁ガスである。 An explanation will be given below based on an embodiment of the invention shown in the drawings. 1 is an oil-filled electrical device, for example, an oil-filled transformer; 2 is a gas-filled electrical device, for example, a gas pipe containing a conductor 3. . 4 is insulating oil, 5
is an insulating gas.
しかして、前記油入変圧器１とガス管路２との
間には、油入変圧器１より導出した導体３′およ
びガス管路２の導体３を支持し、互いにその凹部
をそれぞれの機器側方向に向けた円錐形状の絶縁
スペーサ６１を当接することによつて形成される
緩衝室６が設けられ、この緩衝室６には前記ガス
管路２内に封入されたガス圧力とは異なる、たと
えばガス管路２内より高いガス圧力でもつてSF6
などの絶縁ガス５′が封入されている。なお、前
記緩衝室６はその目的からして小容量で良く、
又、緩衝室６は必要に応じてフランジ６２を介し
て、油入変圧器１側のフランジ１１、ガス管路２
側のフランジ２１とともに結合されて形成され
る。 Therefore, between the oil-immersed transformer 1 and the gas pipeline 2, a conductor 3' led out from the oil-immersed transformer 1 and a conductor 3 of the gas pipeline 2 are supported, and the concave portions are connected to the respective equipment. A buffer chamber 6 is provided which is formed by abutting a conical insulating spacer 61 facing in the lateral direction, and the buffer chamber 6 has a pressure different from that of the gas sealed in the gas pipe 2. For example, even at a higher gas pressure than in gas pipe 2, SF 6
An insulating gas 5' such as the following is sealed. Note that the buffer chamber 6 may have a small capacity considering its purpose;
Further, the buffer chamber 6 is connected to the flange 11 on the oil-immersed transformer 1 side, the gas pipe line 2 via the flange 62 as necessary.
It is formed by being joined together with the side flanges 21.
７は前記ガス管路２と緩衝室６内のガス圧力を
検出し比較する検出比較器で、具体的にはガス管
路２および緩衝室６内のガス圧力を検出し、これ
を電気信号に変換するたとえば半導体圧力変換素
子などからなる圧力電気変換要素７１，７２と、
この圧力電気要素７１，７２からの電気信号を比
較するホイートストンブリツヂ回路７３からな
り、このホイートストンブリツヂ回路７３の出力
電圧ｅをもつて図示しない警報器を動作したり、
しや断器をトリツプする。このホイートストンブ
リツヂ回路７３としては固定抵抗R1，R2と、可
変抵抗VRを用い、ガス管路２と緩衝室６とのガ
ス圧力の差を調整して平衡するようにしておく。
Ｅは直流電源、８は導体３と油入変圧器１側の導
体３′を接続するチユリツプコンタクトのような
接続部である。 7 is a detection comparator that detects and compares the gas pressure in the gas pipe 2 and the buffer chamber 6. Specifically, it detects the gas pressure in the gas pipe 2 and the buffer chamber 6, and converts it into an electrical signal. Pressure-electricity conversion elements 71 and 72 made of, for example, semiconductor pressure conversion elements,
It consists of a Wheatstone bridge circuit 73 that compares electrical signals from the pressure electric elements 71 and 72, and uses the output voltage e of this Wheatstone bridge circuit 73 to operate an alarm (not shown).
Trip the breaker. This Wheatstone bridge circuit 73 uses fixed resistors R 1 and R 2 and a variable resistor VR to adjust and balance the difference in gas pressure between the gas pipe line 2 and the buffer chamber 6.
E is a DC power source, and 8 is a connecting portion such as a tube contact for connecting the conductor 3 and the conductor 3' on the oil-immersed transformer 1 side.
以上の構成によれば、今何らかの原因で緩衝室
６内に封入された絶縁ガス５′が、油入変圧器１
側へ洩漏したとすると、緩衝室６内のガス圧力が
低下するが、ガス管路２内のガス圧力は変化しな
い。このため、圧力電気変換要素７２の電気信号
が変化し、あらかじめ平衡態に保持されていたホ
イートストンブリツヂ回路７３の平衡がくずれ、
検出比較器７の出力端子に電圧ｅが現われ、これ
により警報器などが動作し、ガス洩れが速やかに
検出できる。又、緩衝室６とガス管路２とが何ら
かの原因で連通し、緩衝室６内の絶縁ガス５′が
ガス管路２側（又は逆に）へ洩漏したとすると、
両者のガス圧力は等しくなるため、前述の場合と
同様、ホイートストンブリツヂ回路７３の平衡が
くずれ、検出比較器７の出力端子に電圧ｅが現わ
れることとなり、これに基いてガス洩れが検出で
きるのは勿論である。なお、前述したように緩衝
室６のガス圧力を、ガス管路２のそれより高くす
る方が、緩衝室６の容積がガス管路２に比べ小さ
いため、絶縁ガスの使用量が少なくなるので好ま
しい。又、上記検出比較器７はガス管路２内と緩
衝室６内のガス圧力の変化を相対的に比較検出し
ているので、温度変化による圧力変化に対しての
補正等は全く不要であり、極めて精度良くガス洩
れを検出することができる。更に、緩衝室６は油
入変圧器１とガス管路２のそれぞれの絶縁スペー
サ６１を当接することによつて形成されるので、
接続部に、この緩衝室６を設けるためのスペース
を確保しておく必要はなく、該接続部の構成がコ
ンパクトになる。 According to the above configuration, the insulating gas 5' sealed in the buffer chamber 6 due to some reason is transferred to the oil-immersed transformer 1.
If leakage occurs to the side, the gas pressure in the buffer chamber 6 will decrease, but the gas pressure in the gas pipe line 2 will not change. As a result, the electrical signal of the pressure-electric conversion element 72 changes, and the balance of the Wheatstone bridge circuit 73, which was previously maintained in an equilibrium state, is lost.
A voltage e appears at the output terminal of the detection comparator 7, which activates an alarm or the like, allowing a gas leak to be quickly detected. Also, suppose that the buffer chamber 6 and the gas pipe line 2 are connected for some reason, and the insulating gas 5' in the buffer chamber 6 leaks to the gas pipe line 2 side (or vice versa).
Since both gas pressures become equal, the balance of the Wheatstone bridge circuit 73 is disrupted, and a voltage e appears at the output terminal of the detection comparator 7, as in the case described above, and gas leakage can be detected based on this. Of course. As mentioned above, if the gas pressure in the buffer chamber 6 is made higher than that in the gas pipe line 2, the volume of the buffer chamber 6 is smaller than that of the gas pipe line 2, so the amount of insulating gas used will be reduced. preferable. Furthermore, since the detection comparator 7 relatively detects changes in gas pressure within the gas pipe line 2 and within the buffer chamber 6, there is no need to make any corrections for pressure changes due to temperature changes. , it is possible to detect gas leaks with extremely high accuracy. Furthermore, since the buffer chamber 6 is formed by abutting the insulating spacers 61 of the oil-immersed transformer 1 and the gas pipe line 2,
There is no need to secure a space for providing this buffer chamber 6 in the connecting portion, and the configuration of the connecting portion becomes compact.
以上詳述の通り、この考案によれば極めて簡単
な構成により、油入電気機器とガス入電気機器と
の接続部がコンパクトに構成でき、しかも、圧力
の異なるガス圧力の変化を対的に比較検出する検
出比較器を用いるので、ガス洩れを高精度で検出
することができるといつた実用的な効果を奏す
る。 As detailed above, according to this invention, the connecting part between oil-filled electrical equipment and gas-filled electrical equipment can be constructed compactly due to an extremely simple configuration, and furthermore, changes in gas pressure at different pressures can be compared against each other. Since a detection comparator is used for detection, there are practical effects such as being able to detect gas leaks with high precision.
図はこの考案の一実施例を示す概略構成断面図
である。
１：油入電気機器（油入変圧器）、２：ガス入
電気機器（ガス管路）、３，３′：導体、４：絶縁
油、５，５′：絶縁ガス、６：緩衝室、７：検出
比較器、７１，７２：圧力電気変換要素、７３：
ホイートストンブリツヂ回路。
The figure is a schematic cross-sectional view showing an embodiment of this invention. 1: Oil-filled electrical equipment (oil-filled transformer), 2: Gas-filled electrical equipment (gas pipe), 3, 3': Conductor, 4: Insulating oil, 5, 5': Insulating gas, 6: Buffer chamber, 7: Detection comparator, 71, 72: Pressure electric conversion element, 73:
Wheatstone bridge circuit.
Claims (1)
れら両機器間を接続する導体を支持し、互いに
その凹部をそれぞれの機器側方向に向けた２個
の絶縁スペーサによつて形成される緩衝室を設
け、この緩衝室内に前記ガス入電気機器内に封
入されたガス圧力と異なるガス圧力でもつて絶
縁ガスを封入するとともに、前記ガス入電気機
器内と緩衝室内のガス圧力を検出し比較する検
出比較器を設けたことを特徴とする油入電気機
器とガス入電気機器との接続装置。 (2) 検出比較器が、圧力電気変換要素と、ホイー
トストンブリツヂ回路からなる実用新案登録請
求の範囲第１項記載の油入電気機器とガス入電
気機器との接続装置。[Scope of Claim for Utility Model Registration] (1) Two electrical appliances that support a conductor between an oil-filled electrical device and a gas-filled electrical device and that connect the two devices, with their concave portions facing toward the sides of each device. A buffer chamber formed by a plurality of insulating spacers is provided, and an insulating gas is filled in the buffer chamber at a gas pressure different from that of the gas sealed in the gas-filled electrical equipment. A connection device between oil-filled electrical equipment and gas-filled electrical equipment, characterized in that a detection comparator is provided to detect and compare gas pressure in a buffer chamber. (2) A connection device between an oil-filled electrical device and a gas-filled electrical device according to claim 1, wherein the detection comparator includes a pressure-electric conversion element and a Wheatstone bridge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13822181U JPS5842918U (en) | 1981-09-16 | 1981-09-16 | Connection device between oil-filled electrical equipment and gas-filled electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13822181U JPS5842918U (en) | 1981-09-16 | 1981-09-16 | Connection device between oil-filled electrical equipment and gas-filled electrical equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5842918U JPS5842918U (en) | 1983-03-23 |
| JPS6244508Y2 true JPS6244508Y2 (en) | 1987-11-25 |
Family
ID=29931452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13822181U Granted JPS5842918U (en) | 1981-09-16 | 1981-09-16 | Connection device between oil-filled electrical equipment and gas-filled electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5842918U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0541387Y2 (en) * | 1986-12-10 | 1993-10-20 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5298948A (en) * | 1976-02-16 | 1977-08-19 | Nissin Electric Co Ltd | Coupling device for gas insulated electrical appliances and oillimmersed electrical machinery and apparatus |
-
1981
- 1981-09-16 JP JP13822181U patent/JPS5842918U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5298948A (en) * | 1976-02-16 | 1977-08-19 | Nissin Electric Co Ltd | Coupling device for gas insulated electrical appliances and oillimmersed electrical machinery and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5842918U (en) | 1983-03-23 |
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