JPH0423299Y2 - - Google Patents
Info
- Publication number
- JPH0423299Y2 JPH0423299Y2 JP1983001880U JP188083U JPH0423299Y2 JP H0423299 Y2 JPH0423299 Y2 JP H0423299Y2 JP 1983001880 U JP1983001880 U JP 1983001880U JP 188083 U JP188083 U JP 188083U JP H0423299 Y2 JPH0423299 Y2 JP H0423299Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- capacitor
- rapeseed
- rapeseed oil
- capacitors
- 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
- 239000003990 capacitor Substances 0.000 claims description 42
- 235000004977 Brassica sinapistrum Nutrition 0.000 claims description 13
- 240000008415 Lactuca sativa Species 0.000 claims description 13
- 235000012045 salad Nutrition 0.000 claims description 13
- 240000002791 Brassica napus Species 0.000 claims description 12
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 239000003989 dielectric material Substances 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 2
- 235000019484 Rapeseed oil Nutrition 0.000 description 29
- 239000003921 oil Substances 0.000 description 19
- 235000019198 oils Nutrition 0.000 description 19
- 239000010408 film Substances 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000010409 thin film Substances 0.000 description 4
- 150000004996 alkyl benzenes Chemical class 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 235000014698 Brassica juncea var multisecta Nutrition 0.000 description 1
- 235000006008 Brassica napus var napus Nutrition 0.000 description 1
- 235000006618 Brassica rapa subsp oleifera Nutrition 0.000 description 1
- 244000188595 Brassica sinapistrum Species 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011104 metalized film Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/20—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06
- H01G4/22—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【考案の詳細な説明】
本考案はコンデンサの改良に関するものであ
る。[Detailed Description of the Invention] The present invention relates to improvements in capacitors.
従来の油浸コンデンサは、その用途により種々
の方式が用いられている。その方式を大別する
と、電極に金属蒸着膜を用いた自己回復性コンデ
ンサ（以下SHコンデンサという）と金属箔を用
いた非自復性コンデンサ（NHコンデンサ）があ
る。SHコンデンサの代表的なものは、金属化紙
コンデンサ、両面金属化紙コンデンサ、金属化フ
イルムコンデンサなどがある。さらに最近のプラ
スチツクフイルムの進歩に伴ない、金属化紙との
組合せによる構成が実用化されている。 Various types of conventional oil-immersed capacitors are used depending on the application. Broadly speaking, there are two types of capacitors: self-healing capacitors (hereinafter referred to as SH capacitors) that use a metal-deposited film on the electrodes, and non-self-healing capacitors that use metal foil (NH capacitors). Typical SH capacitors include metalized paper capacitors, double-sided metalized paper capacitors, and metalized film capacitors. Furthermore, with recent advances in plastic film, a structure in which it is combined with metallized paper has been put into practical use.
本考案は耐電圧性能の優れた高信頼性のコンデ
ンサを提供するもので、プラスチツクフイルムの
中でも特に耐電圧特性の高い、低損失特性を有す
るポリプロピレンフイルム（以下PPフイルムと
いう）のみを誘電体に用い、電極として同電位と
なる両面金属化紙と重ねて巻回して、絶縁油とし
てなたね油を含浸してなるコンデンサである。 This invention provides a highly reliable capacitor with excellent withstand voltage performance, and uses only polypropylene film (hereinafter referred to as PP film) as the dielectric material, which has particularly high withstand voltage characteristics and low loss characteristics among plastic films. This is a capacitor made by wrapping metallized paper on both sides, which has the same potential, as an electrode and impregnating it with rapeseed oil as an insulating oil.
以下、本考案を実施例により詳細に説明する。
第１図はコンデンサの基本構造を示し、絶縁紙の
両面に真空蒸着によつて形成された導電性薄膜２
を有する両面金属化紙１を電極とし、誘電体とし
てPPフイルム３を重ね合せて巻回し、その巻回
端面にリード取り出し用に金属溶射をしたコンデ
ンサ素子に絶縁油として、鉱物油、アルキルベン
ゼン、なたね油を含浸したものである。 Hereinafter, the present invention will be explained in detail with reference to examples.
Figure 1 shows the basic structure of a capacitor, with a conductive thin film 2 formed on both sides of insulating paper by vacuum deposition.
A double-sided metallized paper 1 having a double-sided metallized paper 1 is used as an electrode, and a PP film 3 is layered and wound as a dielectric, and a capacitor element is coated with a metal sprayed on the end surface of the winding for lead extraction.Mineral oil, alkylbenzene, rapeseed oil is used as an insulating oil. It is impregnated with
以上のように構成されたコンデンサの交流電圧
−時間特性を測定した結果を第２図に示し、は
鉱物油を含浸したもの、はアルキルベンゼンを
含浸したもの、は食用なたね油を含浸したもの
で、第２図から明らかなようにコンデンサの絶縁
油として食用なたね油を含浸することにより、交
流電圧−時間特性の良好なコンデンサが得られ
た。 Figure 2 shows the results of measuring the AC voltage-time characteristics of the capacitors constructed as described above. As is clear from Figure 2, by impregnating the capacitor with edible rapeseed oil as an insulating oil, a capacitor with good AC voltage-time characteristics was obtained.
しかし食用なたね油は植物油であるため、シー
ドから油分抽出後の処理（または精製）工程にお
いて、例えば脱酸、脱色、脱臭などの工程の程度
により油の特性に差が出る。食用なたね油はJAS
規格第29条で、明らかなようになたね油、精製な
たね油、なたねサラダ油の３種類に区分され、そ
れぞれ精製度が異なるもので、３種類の食用なた
ね油は、比重、けん化価、よう素価、不けん化物
および粘度などの物性は同等で精製度の異なるこ
とに基因する酸価に差があり、なたね油2.0以下、
精製なたね油0.20以下、なたねサラダ油0.15以下
と差のある規格になつている。さらになたねサラ
ダ油は冷却試験（０℃、5.5Hr以上）において清
澄でなければならないので、脱ろう処理をしてい
る。このような３種類の食用なたね油を用いて、
第１図と同ように誘電体としてPPフイルム３を
１枚用い、電圧としてZnを真空蒸着によつて両
面に導電性薄膜２を形成させた両面金属化紙１を
重ね合せて巻回し、その巻回断面にリード取出し
用の金属溶射をしたコンデンサ素子を製作し、こ
のコンデンサ素子になたね油、精製なたね油
および、なたねサラダ油をそれぞれ真空含浸さ
せて容量26μFのコンデンサを製作した。 However, since edible rapeseed oil is a vegetable oil, the properties of the oil vary depending on the degree of deacidification, decolorization, deodorization, etc., performed in the treatment (or purification) steps after oil extraction from seeds. Edible rapeseed oil is JAS
Article 29 of the standard clearly states that it is classified into three types: rapeseed oil, refined rapeseed oil, and rapeseed salad oil, each with a different degree of refinement. Although the physical properties such as saponification and viscosity are the same, there is a difference in acid value due to the difference in the degree of refinement.
There is a difference in standards, with refined rapeseed oil being 0.20 or less and rapeseed salad oil being 0.15 or less. Furthermore, rapeseed salad oil must be clear in a cooling test (0°C, 5.5 hours or more), so it is dewaxed. Using these three types of edible rapeseed oil,
As in Fig. 1, one sheet of PP film 3 is used as a dielectric material, and double-sided metallized paper 1 on which a conductive thin film 2 is formed on both sides by vacuum evaporation of Zn as a voltage is overlapped and wound. A capacitor element was fabricated with metal sprayed on the winding cross section for lead extraction, and this capacitor element was vacuum impregnated with rapeseed oil, refined rapeseed oil, and rapeseed salad oil to fabricate a capacitor with a capacitance of 26 μF.
このようにして得られたコンデンサのコロナ開
始電圧と温度の関係を第３図に示し、この結果、
なたね油、精製なたね油のコロナ開始電圧は
低温度になるにしたがい急激に低下するが、なた
ねサラダ油は低下が少ない。 The relationship between the corona starting voltage and temperature of the capacitor obtained in this way is shown in Figure 3, and as a result,
The corona onset voltage of rapeseed oil and refined rapeseed oil decreases rapidly as the temperature decreases, but the decrease is small for rapeseed salad oil.
食用なたね油について低温性状を試験したとこ
ろ、なたね油、精製なたね油は０〜−５℃
で、なたねサラダ油は−10〜−15℃で濁ごり始
め、そのまま試験をつづけ流動点をJIS−Ｃ−
2101の絶縁油試験法に基づき求めるとなたね油
、精製なたね油は−10〜−15℃、なたねサラ
ダ油は−20〜−25℃であつた。なたねサラダ油
の濁り点および流動点が低いのは精製工程で脱
ろう処理をしているためである。 When we tested the low temperature properties of edible rapeseed oil, we found that rapeseed oil and refined rapeseed oil had a temperature of 0 to -5℃.
The rapeseed salad oil started to become cloudy at -10 to -15℃, so the test was continued and the pour point was changed to JIS-C-
Based on the 2101 insulating oil test method, rapeseed oil and refined rapeseed oil had a temperature of -10 to -15°C, and rapeseed salad oil had a temperature of -20 to -25°C. The reason why rapeseed salad oil has a low turbidity point and low pour point is because it is dewaxed during the refining process.
したがつて、なたね油、精製なたね油が低
温で急激に低下するのは流動点が高いためであ
る。 Therefore, the reason why rapeseed oil and refined rapeseed oil rapidly decrease at low temperatures is because of their high pour points.
さらに−15℃で定格電圧の1.2倍の電圧を印加
して室温でのコロナ開始電圧の経時変化を試験し
たところ、なたねサラダ油のコロナ開始電圧の
低下は少くなく一定時間後低下しないが、なたね
油、精製なたね油は徐々に低下し、低温でコ
ロナ発生し誘電体が劣化していく傾向が第４図で
明らかである。 Furthermore, when we applied a voltage 1.2 times the rated voltage at -15℃ and tested the change in corona onset voltage at room temperature over time, we found that the corona onset voltage of rapeseed salad oil did not decrease after a certain period of time, but the decrease in the corona onset voltage of rapeseed salad oil was not small. It is clear from Figure 4 that refined rapeseed oil gradually decreases in temperature, corona occurs at low temperatures, and the dielectric deteriorates.
次に80℃で定格電圧の1.2倍の電圧を印加して
tanδの経時変化を試験したところ、第５図で明ら
かなようにtanδは1000Hrまではいずれも低下傾
向にあるが、なたね油、精製なたね油は
1000Hr後上昇している。コンデンサは15年とい
つた長期間の使用に異常なく耐えうることが課せ
られているので、tanδが上昇することは長期間の
使用過程で発熱量が多くなり、しいては熱破壊す
ることにつながる。なたねサラダ油は安定した
tanδ経時特性を示しており、食用なたね油の中で
も優れている。これは先に示した酸価に表われて
いるように精製度が高いためである。 Next, apply a voltage 1.2 times the rated voltage at 80℃.
When we tested the change in tanδ over time, as shown in Figure 5, tanδ tends to decrease up to 1000 hours, but rapeseed oil and refined rapeseed oil
It is rising after 1000 hours. Capacitors are required to be able to withstand long-term use, such as 15 years, without any abnormalities, so an increase in tanδ means that the capacitor will generate more heat during long-term use, which can lead to thermal breakdown. Connect. Canola salad oil stabilized
It exhibits tanδ aging characteristics, which is excellent among edible rapeseed oils. This is due to the high degree of purification as shown in the acid value shown above.
なお、上述の実施例において、真空蒸着される
金属としてZn，Alなどが通常用いられているが、
これらの金属に限定するものでなく、このSHコ
ンデンサは両面金属化紙の導電性薄膜２が同電位
であり、しかもPPフイルムのみの誘電体となつ
ているため、PPフイルムの優れた耐電圧特性お
よび低損失特性が生かせる。したがつてSHコン
デンサの中でも比較的電圧の高い用途および高温
領域使用に適し、従来絶縁油としての用いられて
いる鉱物油とかアルキルベンゼンに比較し使用電
位傾度を高め、小形化、軽量化が図れたものであ
る。 In addition, in the above-mentioned examples, Zn, Al, etc. are usually used as metals to be vacuum-deposited.
This SH capacitor is not limited to these metals, but since the conductive thin film 2 of double-sided metallized paper has the same potential and the PP film is the only dielectric, the excellent withstand voltage characteristics of the PP film can be used. and low loss characteristics can be utilized. Therefore, it is suitable for use in relatively high voltage applications and high temperature areas among SH capacitors, and has a higher potential gradient than conventional insulating oils such as mineral oil or alkylbenzene, making it smaller and lighter. It is something.
以上のように本考案はPPフイルムを誘電体と
し、両面金属化紙を電極とした自己回復性コンデ
ンサにおいて、含浸剤として食用なたね油の中で
特になたねサラダ油を用いると耐電圧性能が向上
するとともに、安定した特性のコンデンサが得ら
れ、工業的ならびに実用的価値大なるものであ
る。 As described above, the present invention proposes that in a self-healing capacitor using PP film as a dielectric and double-sided metallized paper as an electrode, use of edible rapeseed oil, especially rapeseed oil, as an impregnant improves the withstand voltage performance. , a capacitor with stable characteristics can be obtained, and is of great industrial and practical value.
第１図は本考案のコンデンサの素子構成の断面
図、第２図はコンデンサの交流電圧−時間特性
図、第３図はコンデンサのコロナ開始電圧−温度
特性図、第４図はコンデンサのコロナ開始電圧−
時間特性図および第５図はコンデンサのtanδ−時
間特性図を示す。
１……両面金属化紙、２……導電性薄膜、３…
…ポリプロピレンフイルム、……鉱物油含浸コ
ンデンサ、……アルキルベンゼン含浸コンデン
サ、……食用なたね油含浸コンデンサ、……
なたね油含浸コンデンサ、……精製なたね油含
浸コンデンサ、……なたねサラダ油含浸コンデ
ンサ。
Fig. 1 is a cross-sectional view of the element configuration of the capacitor of the present invention, Fig. 2 is an AC voltage-time characteristic diagram of the capacitor, Fig. 3 is a corona onset voltage-temperature characteristic diagram of the capacitor, and Fig. 4 is a corona onset diagram of the capacitor. Voltage -
A time characteristic diagram and FIG. 5 show a tan δ-time characteristic diagram of a capacitor. 1... Double-sided metalized paper, 2... Conductive thin film, 3...
...polypropylene film, ...mineral oil impregnated capacitor, ...alkylbenzene impregnated capacitor, ...edible rapeseed oil impregnated capacitor, ...
Capacitors impregnated with rapeseed oil, capacitors impregnated with refined rapeseed oil, capacitors impregnated with rapeseed salad oil.
Claims (1)
間に、誘電体としてポリプロピレンフイルムのみ
を用いて巻回したコンデンサ素子に、なたねサラ
ダ油を含浸してなることを特徴とするコンデン
サ。 A capacitor characterized in that a capacitor element is formed by impregnating rapeseed salad oil into a capacitor element wound using only polypropylene film as a dielectric material between a pair of double-sided metallized paper at the same potential as a pair of electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP188083U JPS59125829U (en) | 1983-01-10 | 1983-01-10 | capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP188083U JPS59125829U (en) | 1983-01-10 | 1983-01-10 | capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59125829U JPS59125829U (en) | 1984-08-24 |
| JPH0423299Y2 true JPH0423299Y2 (en) | 1992-05-29 |
Family
ID=30133586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP188083U Granted JPS59125829U (en) | 1983-01-10 | 1983-01-10 | capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59125829U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5939017A (en) * | 1982-08-27 | 1984-03-03 | 信越半導体株式会社 | Oil-immersed condenser |
-
1983
- 1983-01-10 JP JP188083U patent/JPS59125829U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5939017A (en) * | 1982-08-27 | 1984-03-03 | 信越半導体株式会社 | Oil-immersed condenser |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59125829U (en) | 1984-08-24 |
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