JP3845671B2 - High voltage resistor element - Google Patents

High voltage resistor element Download PDF

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JP3845671B2
JP3845671B2 JP2003367958A JP2003367958A JP3845671B2 JP 3845671 B2 JP3845671 B2 JP 3845671B2 JP 2003367958 A JP2003367958 A JP 2003367958A JP 2003367958 A JP2003367958 A JP 2003367958A JP 3845671 B2 JP3845671 B2 JP 3845671B2
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voltage resistor
resistor element
element according
insulating sleeve
voltage
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JP2004363545A (en
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袈裟文 松本
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株式会社興研
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Priority to CA002488822A priority patent/CA2488822C/en
Priority to PCT/JP2003/016223 priority patent/WO2004109720A1/en
Priority to AT03789605T priority patent/ATE504070T1/en
Priority to US10/516,233 priority patent/US7218201B2/en
Priority to DE60336593T priority patent/DE60336593D1/en
Priority to AU2003296177A priority patent/AU2003296177B2/en
Priority to EP03789605A priority patent/EP1630830B1/en
Priority to KR1020047021538A priority patent/KR100675951B1/en
Priority to TW093101954A priority patent/TWI232469B/en
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Description

本発明は、高圧発電装置の負荷特性試験に用いられる高圧金属抵抗器としての高圧抵抗体素子に関するものである。   The present invention relates to a high voltage resistor element as a high voltage metal resistor used for a load characteristic test of a high voltage power generator.

従来、発電装置の負荷特性試験に用いられる負荷抵抗器として、図３に示すような張り出し片９を有する高圧抵抗体素子１´を用いたものが利用されていた。同図に付き説明すると、２´は円筒形の外筒であり、約１ｍの長さを持って形成されている。   Conventionally, as a load resistor used for a load characteristic test of a power generator, one using a high-voltage resistor element 1 ′ having a protruding piece 9 as shown in FIG. 3 has been used. Referring to the figure, 2 'is a cylindrical outer cylinder having a length of about 1 m.

そして、３は抵抗発熱線、４は電極棒であり、５´は抵抗発熱線３及び電極棒４と外筒２´の内壁の間に充填され封端部材６で密封された絶縁物である。この絶縁物５´は粉末状に構成されており、外筒２´と抵抗発熱線３及び電極棒４とを絶縁する役目を持つものである。   Reference numeral 3 is a resistance heating wire, 4 is an electrode rod, and 5 'is an insulating material filled between the resistance heating wire 3 and the electrode rod 4 and the inner wall of the outer cylinder 2' and sealed by a sealing member 6. . The insulator 5 ′ is configured in a powder form and has a role of insulating the outer tube 2 ′ from the resistance heating wire 3 and the electrode rod 4.

７は接続用端子であり、電極棒４の外端螺子部４ａに螺合挿通したナット８、８にて両側を挟付け固定されている。そして、この端子７を介して隣り合う他の高圧抵抗体素子１´と接続される。９は上記したように張り出し片であり、抵抗発熱線３へ通電した際に発せられる熱を放出する放熱板の機能を果たすものである。張り出し片９は外筒２´の外周上長手方向に約７ｍｍの間隔でスパイラル状に一体成形又は取り付けられている。   Reference numeral 7 denotes a connection terminal, which is clamped and fixed on both sides by nuts 8 and 8 threadedly inserted into the outer end screw portion 4a of the electrode rod 4. And it connects with other high voltage resistor elements 1 'adjacent via this terminal 7. Reference numeral 9 denotes a protruding piece as described above, which functions as a heat radiating plate that releases heat generated when the resistance heating wire 3 is energized. The projecting pieces 9 are integrally formed or attached in a spiral shape at an interval of about 7 mm in the longitudinal direction on the outer periphery of the outer cylinder 2 ′.

この高圧抵抗体素子１´は、使用電圧６６００Ｖに応ずるため、定格電圧４００Ｖ、絶縁耐力２０００Ｖ／１分間の規格とされている。   Since this high-voltage resistor element 1 ′ conforms to a working voltage of 6600 V, it is standardized with a rated voltage of 400 V and a dielectric strength of 2000 V / minute.

図４に当該高圧抵抗体素子１´を直列に接続した高圧抵抗体回路１０を示す。１１は接続部材であり、隣り合う高圧抵抗体素子１´を接続用端子７に代って接続する。１２´は四角状の方形フレームであり、当該方形フレーム１２´の配列板１２ａ´には１０個の高圧抵抗体素子１´が両端を貫通渡架して取り付けられ、高圧抵抗体回路１０が形成されている。   FIG. 4 shows a high-voltage resistor circuit 10 in which the high-voltage resistor elements 1 ′ are connected in series. Reference numeral 11 denotes a connection member, which connects adjacent high-voltage resistor elements 1 ′ instead of the connection terminals 7. Reference numeral 12 'denotes a rectangular rectangular frame. Ten high-voltage resistor elements 1' are attached to the array plate 12a 'of the rectangular frame 12' so as to pass through both ends, thereby forming the high-voltage resistor circuit 10. Has been.

図５に、高圧負荷抵抗器ユニット１３の概略構成を示す。当該高圧負荷抵抗器ユニット１３には、前述した高圧抵抗体回路１０が１５段多段に渡架収容されている。このとき、高圧抵抗体素子１´の張り出し片９が互いに重なり合わないように、互い違いに齟齬配置されている。これは、各高圧抵抗体素子１´が通電状態になると、かなりの高熱が発せられるため、冷却ファン１４により下から風冷却が万遍に行われなければならないためである。   FIG. 5 shows a schematic configuration of the high-voltage load resistor unit 13. The high-voltage load resistor unit 13 accommodates the above-described high-voltage resistor circuit 10 in 15 stages and multiple stages. At this time, the protruding pieces 9 of the high-voltage resistor element 1 ′ are alternately arranged so as not to overlap each other. This is because a considerable amount of heat is generated when each high-voltage resistor element 1 ′ is energized, so that the cooling fan 14 must uniformly cool the wind from below.

当該高圧負荷抵抗器ユニット１３に冷却ファン１４を設けた実施例を図６に示す。同図において、１５は防振ゴムであり、１６は絶縁碍子を示す。この碍子１６をさらに設けることによって、絶縁性の確保をさらに高める作用を有するものである。図中１７はフード、１８は設置基台である。   An embodiment in which a cooling fan 14 is provided in the high-voltage load resistor unit 13 is shown in FIG. In the figure, reference numeral 15 denotes an anti-vibration rubber, and 16 denotes an insulator. By further providing this insulator 16, it has the effect | action which raises ensuring of insulation further. In the figure, 17 is a hood, and 18 is an installation base.

ここで、従来の技術として参考資料を挙げておく。
特開平９−１５３０７号公報 特開平９−１５３０８号公報 特開２０００−１９２３１号公報 Here, reference materials are listed as conventional techniques.
JP-A-9-15307 Japanese Patent Laid-Open No. 9-15308 JP 2000-19231 A

以上のような従来の乾式の高圧負荷抵抗器を用いて高圧発電装置の負荷特性試験を行った結果、風冷却負荷抵抗器は１４０℃の高温となり、高圧抵抗体素子１´単体では、３５０℃乃至７００℃の温度を有することが分かった。   As a result of performing the load characteristic test of the high voltage power generator using the conventional dry type high voltage load resistor as described above, the wind cooling load resistor has a high temperature of 140 ° C., and the high voltage resistor element 1 ′ alone has a temperature of 350 ° C. It was found to have a temperature of ~ 700 ° C.

これは、高圧抵抗体回路１０に配列されている高圧抵抗体素子１´の張り出し片９を重ならないように互い違いに位置するように配置しても、この張り出し片９の形状が送風機による通風の抵抗となり、方形フレーム１０内に熱が篭って冷却ファン１４の冷却作用の効果が十分に得られないためである。この高圧抵抗体素子１´では常備が常識とされている張り出し片９は、低圧抵抗体素子では極めて有効ではあるが、次に述べる種々の弊害をもたらすことが解明されていなかった。   This is because even if the protruding pieces 9 of the high-voltage resistor elements 1 ′ arranged in the high-voltage resistor circuit 10 are arranged so as not to overlap each other, the shape of the protruding pieces 9 is the same as that of the ventilation by the blower. This is because resistance is generated and heat is generated in the rectangular frame 10 and the cooling effect of the cooling fan 14 cannot be sufficiently obtained. The overhanging piece 9, which is commonly used in the high-voltage resistor element 1 ′, is extremely effective in the low-voltage resistor element, but has not been elucidated to cause various problems described below.

即ち、張り出し片９が通風の抵抗となるため、当該高圧負荷抵抗器ユニット１３内で乱気流や撹乱気流が起生し、その結果振動を起こすという現象も回避出来ず、従来例では、これを防振ゴム１５により回避しているが、試験の際の危険性は相変わらずぬぐえるものではない。   That is, since the overhanging piece 9 becomes resistance to ventilation, the phenomenon that turbulent air flow or turbulent air flow occurs in the high-voltage load resistor unit 13 and as a result causes vibrations cannot be avoided. Although it is avoided by the vibration rubber 15, the danger during the test is not wiped out as usual.

しかも、高圧抵抗体素子１´の外筒２´内に封入された絶縁物５´は粉末状であるため、この外力振動により移動片寄せられて均一厚被覆が不可能となり、部分的に絶縁が不充分となって絶縁破壊の引き金となる弊害を有するばかりか絶縁粉末のため稼動中の灼熱の抵抗発熱線３も容易に振動を起生し、断線し易くなり耐熱性に欠ける欠点を有する。それにも拘らず、従来は運転操作者の操作ミスで片付けられることが多かったこの故障原因の解明が充分なされていなかった。   In addition, since the insulator 5 ′ enclosed in the outer cylinder 2 ′ of the high-voltage resistor element 1 ′ is in a powder form, it is moved away by this external force vibration, making it impossible to coat uniformly and partially insulating. Insufficient to trigger the dielectric breakdown, and because of the insulating powder, the heated resistance heating wire 3 that is in operation can easily generate vibrations and easily break, resulting in a lack of heat resistance. . Nevertheless, the cause of this failure, which has been often cleared up by mistakes of operation by the driver in the past, has not been fully clarified.

さらには、当該張り出し片８の形状は、放熱作用のためのものであるが、先が尖っているため高圧になると先尖縁９ａ、９ａからコロナ放電を初期発生し、終には方形フレーム１２´との間でアーク放電を発生し、絶縁破壊を起こすことが永年の実験の結果ようやく分かり、危険性を伴わずに負荷特性試験を実施することは従来の高圧抵抗体素子１´ではできないものであった。   Further, the shape of the projecting piece 8 is for heat dissipation, but since the tip is sharp, corona discharge is initially generated from the tip edges 9a and 9a when the pressure becomes high, and finally the rectangular frame 12 is used. As a result of many years of experiments, arc discharge was generated between them and the dielectric breakdown was finally understood, and it is impossible for the conventional high-voltage resistor element 1 'to perform the load characteristic test without danger. Met.

アーク放電により絶縁破壊を起したときの安全策として絶縁硝子１６を設けているが、高圧過電流の逃げ場がないため高圧負荷抵抗ユニット１３全体が焼損破壊してしまう危険があり、従業員も稼動中は危なくて近づけなかった。   Insulating glass 16 is provided as a safety measure when dielectric breakdown is caused by arc discharge, but there is no danger of high-voltage overcurrent escape, so there is a risk that the entire high-voltage load resistance unit 13 may be burned and destroyed, and employees are also in operation. The inside was dangerous and not close.

その上、張り出し片９の為、方形フレーム１２´上方から内部の見通しが悪く保守、点検、整備上の支障となり、加えて、焼損又は断線した高圧抵抗体素子１´のみを方形フレーム１２´から横合いに抜き出すことは出来ない為、稼動現場での部分的な交換は不可能であり、いちいち工場に持ち帰り、他の高圧抵抗体素子１´をも取り外した上で部分交換を余儀なくされていた為、負荷特性試験を中断、延期しなければならなかった。   In addition, because of the overhanging piece 9, the inside of the rectangular frame 12 'is poorly visible from above, which may hinder maintenance, inspection, and maintenance. In addition, only the high-voltage resistor element 1' that is burned out or disconnected is removed from the rectangular frame 12 '. Because it cannot be pulled out side by side, it cannot be partially replaced at the operation site, and it was forced to replace it after taking it back to the factory and removing other high-voltage resistor elements 1 '. The load characteristic test had to be interrupted and postponed.

ここにおいて、本発明の解決すべき主要な目的は、次の通りである。
即ち、本発明の第１の目的は、高圧発電装置の負荷特性試験を行う際に発生する熱による温度上昇に耐え得る高圧抵抗体素子を提供せんとするものである。 Here, the main objects to be solved by the present invention are as follows.
That is, a first object of the present invention is to provide a high-voltage resistor element that can withstand a temperature rise due to heat generated when a load characteristic test of a high-voltage power generator is performed.

本発明の第２の目的は、高圧においても絶縁破壊を防ぐ高圧負荷装置に用いられる高圧抵抗体素子を提供せんとするものである。   The second object of the present invention is to provide a high-voltage resistor element used in a high-voltage load device that prevents dielectric breakdown even at high voltage.

本発明の第３の目的は、風冷に対する耐振性に優れた耐久性を有する高圧抵抗体素子を提供せんとするものである。   The third object of the present invention is to provide a high-voltage resistor element having durability excellent in vibration resistance against air cooling.

本発明の第４の目的は、支持物から容易に一本一本抜き出せ、保守、点検、整備、交換補修に至便な高圧抵抗体素子を提供せんとするものである。   A fourth object of the present invention is to provide a high-voltage resistor element that can be easily pulled out one by one from a support and is convenient for maintenance, inspection, maintenance, and replacement repair.

本発明の第５の目的は、軽量コンパクトな高圧抵抗体素子を提供せんとするものである。   A fifth object of the present invention is to provide a light weight and compact high voltage resistor element.

本発明の他の目的は、明細書、図面、特に特許請求の範囲の各請求項の記載から自ずと明らかとなろう。   Other objects of the present invention will become apparent from the specification, drawings, and particularly the description of each claim.

本発明は、上記課題を解決するために、高圧抵抗体素子の外筒の支持物により支持される部位を絶縁スリーブで抜出自在に被覆することにより、外周全長にスパイラル状放熱張り出し片を設けずとも充分、耐振絶縁破壊性を補強し、送風機による風の通風状態を良好にし、また耐振構造に形成した特徴的な構成手段を講じる。   In order to solve the above-mentioned problems, the present invention provides a spiral heat radiation projecting piece on the entire outer circumference by covering the part supported by the outer cylinder support of the high-voltage resistor element with an insulating sleeve so as to be freely extracted. At least, vibration proof dielectric breakdown resistance will be reinforced, the ventilation state of the wind by the blower will be good, and characteristic structural means formed in the vibration proof structure will be taken.

さらに、具体的詳細を述べると、当該課題の解決では、本発明が次に列挙する新規な特徴的構成手段を採用することにより、上記目的を達成するように為される。   Furthermore, specific details will be described. In order to solve the problem, the present invention achieves the above-mentioned object by adopting the following novel characteristic constituent means.

即ち、本発明の第１の特徴は、金属製円筒状の外筒と、当該外筒の両端からそれぞれ内挿された電極棒の内端相互間に亙り螺旋状に巻かれた抵抗発熱線と、当該電極棒及び当該抵抗発熱線と前記外筒の内壁面との間に充填焼付けられた絶縁物と、各種支持物により支持される前記外筒の両端寄り部位に抜き出し自在に嵌挿止着した絶縁スリーブとを具備して形成されてなる、高圧抵抗体素子の構成採用にある。   That is, the first feature of the present invention is that a metal cylindrical outer cylinder, a resistance heating wire wound in a spiral between the inner ends of electrode rods inserted from both ends of the outer cylinder, and , An insulator filled and baked between the electrode rod and the resistance heating wire and the inner wall surface of the outer cylinder, and fitted and fixed so as to be freely detachable from both ends of the outer cylinder supported by various supports. The structure of the high-voltage resistor element is formed by including the insulating sleeve.

本発明の第２の特徴は、上記本発明の第１の特徴における絶縁スリーブが、前記外筒に対しスプリング溝付止め輪にて止着してなる、高圧抵抗体素子の構成採用にある。   A second feature of the present invention resides in the configuration of a high-voltage resistor element in which the insulating sleeve according to the first feature of the present invention is fixed to the outer cylinder with a retaining groove with a spring groove.

本発明の第３の特徴は、上記本発明の第１又は第２の特徴における絶縁スリーブが、前記高圧抵抗体素子を多列多段に配架する際の支持物である配列板に抜き出し自在に貫嵌しスプリング溝付止め輪にて止着してなる、高圧抵抗体素子の構成採用にある。   A third feature of the present invention is that the insulating sleeve according to the first or second feature of the present invention can be freely extracted to an array plate that is a support when the high-voltage resistor elements are arranged in multiple rows and multiple stages. A high-voltage resistor element is used which is fixedly fitted by a snap ring with a spring groove.

本発明の第４の特徴は、上記本発明の第１、第２又は第３の特徴における絶縁スリーブが、円筒形である、高圧抵抗体素子の構成採用にある。   A fourth feature of the present invention resides in the configuration of a high-voltage resistor element in which the insulating sleeve according to the first, second, or third feature of the present invention is cylindrical.

本発明の第５の特徴は、上記本発明の第１、第２、第３又は第４の特徴における絶縁スリーブが、印加される高電圧値に対応した絶縁耐力を有するよう長さと厚さが調整自在に形成されてなる、高圧抵抗体素子の構成採用にある。   A fifth feature of the present invention is that the length and thickness of the insulating sleeve according to the first, second, third, or fourth feature of the present invention have a dielectric strength corresponding to an applied high voltage value. The configuration of the high-voltage resistor element is formed to be adjustable.

本発明の第６の特徴は、上記本発明の第１、第２、第３、第４又は第５の特徴における絶縁スリーブが、約１０ｃｍ前後間長である、高圧抵抗体素子の構成採用にある。   A sixth feature of the present invention is that the insulating sleeve according to the first, second, third, fourth, or fifth feature of the present invention is about 10 cm in length and adopts a configuration of a high-voltage resistor element. is there.

本発明の第７の特徴は、上記本発明の第４、第５又は第６の特徴における絶縁スリーブが、約３ｍｍ前後間厚である、高圧抵抗体素子の構成採用にある。   A seventh feature of the present invention resides in the configuration of the high-voltage resistor element in which the insulating sleeve according to the fourth, fifth, or sixth feature of the present invention has a thickness of about 3 mm.

本発明の第８の特徴は、上記本発明の第１、第２、第３、第４、第５、第６又は第７の特徴における外筒が、焼結セラミックよりなる、高圧抵抗体素子の構成採用にある。   An eighth feature of the present invention is a high-voltage resistor element in which the outer cylinder of the first, second, third, fourth, fifth, sixth, or seventh feature of the present invention is made of a sintered ceramic. The configuration is adopted.

本発明の第９の特徴は、上記本発明の第１、第２、第３、第４、第５、第６、第７又は第８の特徴における外筒が、前記絶縁物の全保護覆いとしてのスパイラル状張り出し片がない耐熱特性の優れた低圧現用の外装シースを採用してなる、高圧抵抗体素子の構成採用にある。   According to a ninth feature of the present invention, the outer cylinder according to the first, second, third, fourth, fifth, sixth, seventh, or eighth feature of the present invention described above covers the entire protective covering of the insulator. As a high-pressure resistor element, which employs a low-voltage exterior sheath that has excellent heat resistance and has no spiral projecting piece.

本発明の第１０の特徴は、上記本発明の第１、第２、第３、第４、第５、第６、第７、第８又は第９の特徴における絶縁物が、充填焼付け固化して埋蔵した、前記抵抗発熱線を耐振保護してなる、高圧抵抗体素子の構成採用にある。   The tenth feature of the present invention is that the insulator according to the first, second, third, fourth, fifth, sixth, seventh, eighth or ninth feature of the present invention is solidified by filling and baking. The resistance heating wire embedded and protected against vibration resistance is employed in the configuration of the high-voltage resistor element.

本発明の第１１の特徴は、上記本発明の第１、第２、第３、第４、第５、第６、第７、第８、第９又は第１０の特徴における電極棒が、導電性金属棒である、高圧抵抗体素子の構成採用にある。   The eleventh feature of the present invention is that the electrode rod according to the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth or tenth feature of the present invention is conductive. The high-voltage resistor element is a conductive metal rod.

本発明は、かかる高圧抵抗体素子を従来例の高圧負荷抵抗器に用いて試験を実施すると、絶縁スリーブが円筒状を有するため冷却ファンによる風通しが良好で、方形フレーム内に乱流、撹乱流が生せず、従来例に比べ十分な放熱効果が得られる。   In the present invention, when such a high-voltage resistor element is used in a conventional high-voltage load resistor, the insulating sleeve has a cylindrical shape, so that the cooling fan is well ventilated, and turbulent flow, turbulent flow is generated in the rectangular frame. Therefore, a sufficient heat dissipation effect can be obtained as compared with the conventional example.

円筒形状が風の抵抗とならず、抵抗器ユニットの最上部まで順調に風が流れるばかりか、スパイラル状の張り出し片がない為、上から方形フレーム内の見通しも優れ、スプリング溝付止め輪を外せば容易に各高圧抵抗体素子は方形フレーム外に抜き出せるので、稼動現場での保守、点検、整備補修に極めて至便である。   The cylindrical shape does not become wind resistance, and the wind flows smoothly to the top of the resistor unit, and since there is no spiral projecting piece, the view from the top of the rectangular frame is excellent, and a spring groove retaining ring is used. Since each high-voltage resistor element can be easily pulled out of the rectangular frame if it is removed, it is extremely convenient for maintenance, inspection, and repair at the operation site.

また、これにより振動の発生も抑えられ、防振ゴムの設置の必要性はなくなり、試験の際の危険性は極度に軽減される。さらに、従来例の張り出し片のような突起状の先尖縁形状を有しないため、絶縁耐力が増し、絶縁破壊の危険性を回避できるとともに、高圧抵抗体素子を外装した絶縁スリーブで支持物に支持取付けることにより一層の絶縁破壊を阻止し得る等優れた効果を奏する。   This also suppresses the occurrence of vibrations, eliminates the need to install anti-vibration rubber, and extremely reduces the risk during testing. Furthermore, since it does not have a protruding pointed edge shape unlike the overhanging piece of the conventional example, the dielectric strength is increased, the risk of dielectric breakdown can be avoided, and an insulating sleeve with a high voltage resistor element is attached to the support. An excellent effect can be obtained, for example, by preventing further insulation breakdown by attaching the support.

本発明の実施の形態を図面を参照しつつ説明する。
図１に、本実施形態例に係り、絶縁スリーブを分解取り外した高圧抵抗体素子を示す一部省略破断側面図、図２は配列板に両端を貫通渡架した取付状態を示す一部省略破断側面図である。
なお、本実施形態例では、同一部品は同一符号を付し、ダッシュ（´）のない同一符号は従来例の対応部品を表す。 Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a partially omitted cutaway side view showing a high-voltage resistor element in which an insulating sleeve is disassembled and removed according to this embodiment, and FIG. 2 is a partially omitted cutaway showing a mounting state where both ends of the array plate are passed through. It is a side view.
In the present embodiment, the same parts are denoted by the same reference numerals, and the same reference numerals without dashes (′) represent the corresponding parts of the conventional example.

図中、１は本実施形態例の高圧抵抗体素子、２は金属製の外筒であり、表面を滑らかにすることにより放電を発生しにくくする形状と、スパイラル張り出し片がなくとも放熱特性に優れる要件を満たし絶縁物５の全保護覆い素材として、低圧現用の外装シースを用いている。３は外筒２の両端からそれぞれ内挿した電極棒４、４の内端相互間に亙り張設したコイル状抵抗発熱線である。   In the figure, 1 is a high-voltage resistor element of the present embodiment example, 2 is a metal outer cylinder, and it has a shape that makes it difficult to generate discharge by smoothing the surface, and heat dissipation characteristics even without a spiral protruding piece A low-pressure exterior sheath is used as the total protective covering material for the insulator 5 that satisfies excellent requirements. Reference numeral 3 denotes a coiled resistance heating wire stretched between the inner ends of the electrode rods 4 and 4 inserted respectively from both ends of the outer cylinder 2.

また、５は従来例の５´と同様絶縁物であるが、粉末状のものを熱することにより焼付け固形化し、外筒２の内壁と導電性金属の電極棒４、４及び抵抗発熱線３との間に充填されている。これにより、絶縁物５は外筒２を電極棒４、４及び抵抗発熱線３から均等に絶縁する役割を果たすとともに、外部からの振動エネルギーを吸収して自己保持力の弱い抵抗発熱線３をしっかり固定する作用効果も奏することとなる。   Reference numeral 5 denotes an insulator similar to the conventional example 5 '. However, the powdery material is baked and solidified by heating, and the inner wall of the outer cylinder 2, the conductive metal electrode rods 4 and 4, and the resistance heating wire 3 It is filled between. As a result, the insulator 5 serves to uniformly insulate the outer cylinder 2 from the electrode rods 4 and 4 and the resistance heating wire 3, and absorbs the vibration energy from the outside to absorb the resistance heating wire 3 having a weak self-holding force. The effect of fixing firmly will also be exhibited.

また、従来の物と違い固形化されているので、外力振動によっても絶縁物５が偏らず、確実な絶縁が期待できる。７は電極棒４、４外端部の螺子部４ａに挿通し、ナット８、８にて両側を挟着固定した接続用端子である。   Moreover, since it is solidified unlike the conventional thing, the insulator 5 is not biased by external force vibration, and reliable insulation can be expected. Reference numeral 7 denotes a connection terminal that is inserted into the electrode rod 4 and the screw portion 4a at the outer end, and is clamped and fixed on both sides by nuts 8 and 8.

１９は、本実施形態例の特徴である絶縁スリーブである。絶縁スリーブ１９は、電気的な耐圧特性、耐熱性、耐水性（屋外で試験が行われる際に、雨水等の急冷による破壊が生じることがある。）、耐荷重性及び耐衝撃性に優れた焼結セラミックを用いる。電気的特性として交流耐電圧１２０００Ｖ／ｍｍ１分間の素材を用い、例えば、厚さを３ｍｍとすると３６０００Ｖ／１分間に近い絶縁耐力を有するものを製作することができる。   Reference numeral 19 denotes an insulating sleeve which is a feature of this embodiment. The insulating sleeve 19 is excellent in electrical pressure resistance characteristics, heat resistance, water resistance (breakage may occur due to rapid cooling of rain water or the like when testing is performed outdoors), load resistance, and impact resistance. Sintered ceramic is used. A material having an AC withstand voltage of 12000 V / mm for 1 minute is used as an electrical characteristic. For example, when the thickness is 3 mm, a material having a dielectric strength close to 36000 V / min can be manufactured.

また、絶縁スリーブ１９の形状は円筒状であり、高圧抵抗体素子１の外径を例えば、１２ｍｍとすると、内径は１２．５ｍｍ程であり、外径を、厚さ３ｍｍとした場合、１８．５ｍｍ程度となる。使用電圧に応じて長さと厚味は調整自在に形成される。   The shape of the insulating sleeve 19 is cylindrical, and when the outer diameter of the high-voltage resistor element 1 is 12 mm, for example, the inner diameter is about 12.5 mm, and when the outer diameter is 3 mm, 18. It is about 5 mm. The length and thickness are adjustable according to the operating voltage.

また、図２に示すよう表面の汚れや湿気による絶縁値の低下を考慮した配列板１２ａ、支持口１２ｂの貫通両側の長さをそれぞれ５０ｍｍ程度とする。
なお、これら数値はあくまで一例であり、これら数値に限定されるものではないことは言うまでもない。同図中２０はスプリング溝付止め輪で、抜き出し自在な絶縁スリーブ１９を配列板１２ａの支持口１２ｂに止着する一方、抜き出し自在な外筒２を絶縁スリーブ１９に止着する。 Further, as shown in FIG. 2, the lengths of both sides of the array plate 12a and the support port 12b penetrating the insulating plate 12a and the support port 12b in consideration of a decrease in insulation value due to surface contamination and moisture are about 50 mm.
Needless to say, these numerical values are merely examples, and are not limited to these numerical values. In the figure, reference numeral 20 denotes a spring groove retaining ring, which fastens the insulating sleeve 19 that can be pulled out to the support port 12b of the array plate 12a, and fastens the outer cylinder 2 that can be pulled out to the insulating sleeve 19.

１２ａは配列板であり、従来例の高圧抵抗体回路１０を示す図５における方形フレーム１２´の配列板１２ａ´に対応するものであり、両端を貫通渡架した高圧抵抗体素子１群を接続してより張り出し片９分大幅に小さくなった高圧抵抗体回路１０を形成する際の支持物となり得るものである。
従って、軽量コンパクト化された高圧抵抗体素子１群を渡架収納する方形フレーム１２自体が小型化される。 Reference numeral 12a denotes an array plate corresponding to the array plate 12a 'of the rectangular frame 12' in FIG. 5 showing the conventional high-voltage resistor circuit 10, and connects a group of high-voltage resistor elements penetrating both ends. Thus, it can serve as a support for forming the high-voltage resistor circuit 10 which is significantly smaller by the protruding piece 9 minutes.
Therefore, the square frame 12 itself for carrying over and storing the group of high-voltage resistor elements that are light and compact is reduced in size.

以上、本発明の実施の形態に付き説明したが、本発明は、必ずしも上述した手段にのみ限定されるものではなく、本発明にいう目的を達成し、前述の効果を有する範囲内において、適宜、変更実施することが可能なものである。   As described above, the embodiments of the present invention have been described. However, the present invention is not necessarily limited only to the above-described means, and may be appropriately selected within the scope of achieving the object of the present invention and having the above-described effects. It is possible to implement changes.

本発明の実施の形態例に係る絶縁スリーブを分解取り外した高圧抵抗体素子を示す一部省略破断側面図である。It is a partially-omitted fracture side view showing a high-voltage resistor element from which an insulating sleeve according to an embodiment of the present invention has been disassembled and removed. 同上、高圧抵抗体素子の配列板への取付状態一部省略破断側面図である。FIG. 5 is a partially cutaway side view of the state in which the high-voltage resistor element is attached to the array plate. 従来の高圧抵抗体素子を示す一部省略破断側面図である。It is a partially abbreviated side view showing a conventional high-voltage resistor element. 方形フレームに貫通渡架した従来の高圧抵抗体素子群を直列に接続した高圧抵抗体回路を示す一部破断平面図である。It is a partially broken top view which shows the high voltage resistor circuit which connected the conventional high voltage resistor element group penetrated across the square frame in series. 従来の高圧抵抗器ユニットを示す斜面図である。It is a perspective view which shows the conventional high voltage resistor unit. 従来の高圧抵抗器ユニット下側に絶縁碍子と防振ゴムを介して冷却ファンを取り付けた高圧抵抗器を示す図である。It is a figure which shows the high voltage resistor which attached the cooling fan to the lower side of the conventional high voltage resistor unit via the insulator and vibration isolator.

符号の説明Explanation of symbols

１，１´…高圧抵抗体素子
２，２´…外筒
３…抵抗発熱線
４…電極棒
４ａ…外端部螺子部
５，５´…絶縁物
６…封端部材
７…振続用端子
８…ナット
９…張り出し片
９ａ…先尖縁
１０…高圧抵抗体回路
１１…接続部材
１２，１２´…方形フレーム
１２ａ，１２ａ´…配列板
１２ｂ…支持口
１３…高圧負荷抵抗器ユニット
１４…冷却ファン
１５…防振ゴム
１６…絶縁碍子
１７…フード
１８…設置基台
１９…絶縁スリーブ
２０…スプリング溝付止め輪
DESCRIPTION OF SYMBOLS 1,1 '... High-voltage resistor element 2, 2' ... Outer cylinder 3 ... Resistance heating wire 4 ... Electrode rod 4a ... Outer end screw part 5, 5 '... Insulator 6 ... Sealing member 7 ... Passing terminal DESCRIPTION OF SYMBOLS 8 ... Nut 9 ... Overhanging piece 9a ... Pointed edge 10 ... High voltage resistor circuit 11 ... Connection member 12, 12 '... Square frame 12a, 12a' ... Array plate 12b ... Support port 13 ... High voltage load resistor unit 14 ... Cooling Fan 15 ... Antivibration rubber 16 ... Insulator 17 ... Hood 18 ... Installation base 19 ... Insulation sleeve 20 ... Retaining ring with spring groove

Claims (11)

金属製円筒状の外筒と、
当該外筒の両端からそれぞれ内挿された電極棒の内端相互間に亙り螺旋状に巻かれた抵抗発熱線と、
当該電極棒及び当該抵抗発熱線と前記外筒の内壁面との間に充填焼付けられた絶縁物と、
各種支持物により支持される前記外筒の両端寄り部位に抜き出し自在に嵌挿止着した絶縁スリーブと、
を具備して形成される、
ことを特徴とする高圧抵抗体素子。 A metal cylindrical outer cylinder,
A resistance heating wire wound spirally between the inner ends of the electrode rods inserted from both ends of the outer cylinder,
An insulator filled and baked between the electrode rod and the resistance heating wire and the inner wall surface of the outer cylinder;
An insulating sleeve fitted and secured so as to be freely pulled out and attached to both end portions of the outer cylinder supported by various supports;
Formed with
A high-voltage resistor element characterized by that. 前記絶縁スリーブは、
前記外筒に対しスプリング溝付止め輪にて止着する、
ことを特徴とする請求項１に記載の高圧抵抗体素子。 The insulating sleeve is
Fasten to the outer cylinder with a spring groove retaining ring,
The high-voltage resistor element according to claim 1. 前記絶縁スリーブは、
前記高圧抵抗体素子を多列多段に配架する際の支持物である配列板に抜き出し自在に貫嵌しスプリング溝付止め輪にて止着する、
ことを特徴とする請求項１又は２に記載の高圧抵抗体素子。 The insulating sleeve is
The high-voltage resistor elements are inserted into an array plate, which is a support when the multi-row and multi-stages are arranged in a multi-row manner, so as to be freely inserted and fixed with a retaining ring with a spring groove.
The high-voltage resistor element according to claim 1 or 2. 前記絶縁スリーブは、
円筒形である、
ことを特徴とする請求項１、２又は３に記載の高圧抵抗体素子。 The insulating sleeve is
Cylindrical,
4. The high-voltage resistor element according to claim 1, 2, or 3. 前記絶縁スリーブは、
印加される高電圧値に対応した絶縁耐力を有するよう長さと厚さが調整自在に形成される、
ことを特徴とする請求項１、２、３又は４に記載の高圧抵抗体素子。 The insulating sleeve is
The length and thickness are formed to be adjustable so as to have a dielectric strength corresponding to the applied high voltage value.
5. The high-voltage resistor element according to claim 1, 2, 3 or 4. 前記絶縁スリーブは、
約１０ｃｍ前後間長である、
ことを特徴とする請求項１、２、３、４又は５に記載の高圧抵抗体素子。 The insulating sleeve is
About 10 cm long,
The high-voltage resistor element according to claim 1, 2, 3, 4 or 5. 前記絶縁スリーブは、
約３ｍｍ前後間厚である、
ことを特徴とする請求項４、５又は６に記載の高圧抵抗体素子。 The insulating sleeve is
About 3 mm thick,
The high-voltage resistor element according to claim 4, 5 or 6. 前記絶縁スリーブは、
焼結セラミックよりなる、
ことを特徴とする請求項１、２、３、４、５、６又は７に記載の高圧抵抗体素子。 The insulating sleeve is
Made of sintered ceramic,
The high-voltage resistor element according to claim 1, 2, 3, 4, 5, 6 or 7. 前記外筒は、
前記絶縁物の全保護覆いとしてのスパイラル状張り出し片がない耐熱特性の優れた低圧現用の外装シースを採用する、
ことを特徴とする請求項１、２、３、４、５、６、７又は８に記載の高圧抵抗体素子。 The outer cylinder is
Adopting a low-pressure current outer sheath with excellent heat resistance without a spiral projecting piece as a total protective covering of the insulator,
9. The high-voltage resistor element according to claim 1, 2, 3, 4, 5, 6, 7 or 8. 前記絶縁物は、
充填焼付け固化して埋蔵した前記抵抗発熱線を耐振被護する、
ことを特徴とする請求項１、２、３、４、５、６、７、８又は９に記載の高圧抵抗体素子。 The insulator is
Anti-vibration protection of the resistance heating wire buried by baking, solidifying,
The high-voltage resistor element according to claim 1, 2, 3, 4, 5, 6, 7, 8, or 9. 前記電極棒は、
導電性金属棒である、
ことを特徴とする請求項１、２、３、４、５、６、７、８、９又は１０に記載の高圧抵抗体素子。 The electrode rod is
A conductive metal rod,
The high-voltage resistor element according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10.
JP2003367958A 2003-06-03 2003-10-28 High voltage resistor element Expired - Lifetime JP3845671B2 (en)

Priority Applications (10)

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JP2003367958A JP3845671B2 (en) 2003-10-28 2003-10-28 High voltage resistor element
KR1020047021538A KR100675951B1 (en) 2003-06-03 2003-12-18 High-voltage resistor element
AT03789605T ATE504070T1 (en) 2003-06-03 2003-12-18 HIGH VOLTAGE RESISTANCE ELEMENT
US10/516,233 US7218201B2 (en) 2003-06-03 2003-12-18 High pressure resistance body element
DE60336593T DE60336593D1 (en) 2003-06-03 2003-12-18 HIGH VOLTAGE RESISTANCE ELEMENT
AU2003296177A AU2003296177B2 (en) 2003-06-03 2003-12-18 High pressure resistance body element
CA002488822A CA2488822C (en) 2003-06-03 2003-12-18 High-voltage resistor element
PCT/JP2003/016223 WO2004109720A1 (en) 2003-06-03 2003-12-18 High pressure resistance body element
EP03789605A EP1630830B1 (en) 2003-06-03 2003-12-18 High-voltage resistor element
TW093101954A TWI232469B (en) 2003-06-03 2004-01-29 High-voltage resistor element

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