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1. 发明专利

JPS63184310A COIL INSULATION OF VACUUM ELECTRIC APPARATUS 失效
公开(公告)号：JPS63184310A
公开(公告)日：1988-07-29
申请号：JP1690787
申请日：1987-01-26
申请人： YASKAWA DENKI SEISAKUSHO KK
发明人： TSUBONE YOSHIFUSA , OSHIYAMA TSUTOMU
IPC分类号： H02K15/12 , H01F41/12
摘要： PURPOSE:To obtain a porous insulation covering which has realized a reliable degasification process on a coil of vacuum electric apparatus by impregnating a coil formed of wound wire with an impregnant containing silicon compound and synthetic mica, then molding it, and thereafter conducting heat treatment. CONSTITUTION:An impregnant used is obtained by mixing a silicon compound and synthetic mica of 250-400 mesh with the weight ratio of 1:0.8 and then kneading them by means of a ball mill and thereafter reducing it with an individual or mixed solvent of adequate organic solvent, for example, of xylene, butylcellusolubu, cellusolubu acetate and adjusting the viscocity. A coil is impregnated with the impregnant and is then baked at a temperature of 300 deg.C or higher. Thereby, a small amount of fluorine compound vaporized from synthetic mica, for example, SiF4, KF, etc., partly melts SiO2 which is a decomposed biproduct of silicon compound to form an aggregate ceramics. The amount of gas released from an insulation covering baked as explained above is vary small and therefore it is certain to attain a high degree of vacuum in a vacuum apparatus using such a coil.

2. 发明专利

JPS62158310A HEAT-RESISTANT INSULATED COIL 失效
公开(公告)号：JPS62158310A
公开(公告)日：1987-07-14
申请号：JP27086
申请日：1986-01-07
申请人： YASKAWA DENKI SEISAKUSHO KK
发明人： OSHIYAMA TSUTOMU , MIYAZAKI HARUO , TANAKA YOSHIYUKI
IPC分类号： H01F41/12 , H02K3/32
摘要： PURPOSE:To obtain a heat-resistant insulated coil which generates no crack in an impregnant hardened material by impregnating and hardening the impregnant obtained by kneading polyester denatured silicon resin and natural mica powder and by diluting it with an organic solvent in a coil wound with an insulated wire. CONSTITUTION:An insulated coil is obtained by impregnating and hardening in a winding 1 an impregnant 5 obtained by kneading polyester denatured silicon resin, methyl silicon resin or methyl phenyl silicon resin, a resin consisting of C, H, O, N elements and having a compatible or common solvent with a silicon resin and powder of natural mica and by diluting with an organic solvent. If used in a high temperature atmosphere of beyond 300 deg.C, an organic material is thermally decomposed and appropriate voids are formed in the impregnated and hardened material. This makes the modulus of elasticity of the impregnant hardened material smaller and no crack is generated in the impregnant hardened material.

3. 发明专利

JPS61200479A METHOD AND APPARATUS FOR DIAGNOSING INSULATING DETERIORATION OF COIL 失效
公开(公告)号：JPS61200479A
公开(公告)日：1986-09-05
申请号：JP4171385
申请日：1985-03-01
申请人： YASKAWA DENKI SEISAKUSHO KK
发明人： YAMAZAKI YASUAKI , OSHIYAMA TSUTOMU
IPC分类号： G01R31/00 , G01R27/02
摘要： PURPOSE:To accurately estimate the residual breakdown voltage, by detecting the change of transmission function due to the insulating deterioration of a coil. CONSTITUTION:A machine to be measured is vibrated by a vibrator 8 and the vibration generated in a stator coil is received by the vibration sensor 7 attached to a coil end 6. The output signals of the vibrator 8 and the vibration sensor 7 are connected to a transmission function measuring device 11 through preamplifiers 10, 9 to measure the transmission function of the coil. An operator 13 inputs the signal corresponding to the initial transmission function of the machine to be measured stored in a memory apparatus to input the signal corresponding to the lowering ratio of transmission function to an operator 15. The operator 15 operates signal breakdown voltage corresponding to the signal from the operator 13 and the ratio of the dielectric breakdown voltage lowering ratio to the lowering ratio from the data memory apparatus 14 and displays the present dielectric breakdown voltage of the stator coil of the machine to be measured on a display apparatus 16.

4. 发明专利

JPS5849057A INSULATING STRUCTURE FOR CANNED MOTOR COIL 失效
公开(公告)号：JPS5849057A
公开(公告)日：1983-03-23
申请号：JP14557081
申请日：1981-09-17
申请人： NIKKISO CO LTD , YASKAWA DENKI SEISAKUSHO KK
发明人： TSUTSUI TOSHIAKI , OOKI HIROSHI , OSHIYAMA TSUTOMU , MIYAZAKI HARUO
IPC分类号： H02K3/44 , H02K3/30 , H02K3/32
摘要： PURPOSE:To improve the mechanical strength of a coil and the withstand strength in a high temperature atmosphere by employing as an impregnant for insulating and fixing the coil ethylene tetrafluoride resin dispersion. CONSTITUTION:Slot liners 14, 22 made of glass cloth coated with ethylene tetrafluoride resin, interphase insulating paper 18 made of bonded mica, and coil conductors 16, 20 formed by plating nickel on the surfaces of copper wires and treated with double glass-wound ethylene tetrafluoride are contained in a slot 12 formed on a core 10, and a wedge 24 which is made of a glass plate coated with ethylene tetrafluoride resin is engaged with the hole of the slot 12. An impregnant 26 made of ethylene tetrafluoride resin dispersion is immersed and hardened, thereby fixing the conductors 16, 20.

5. 发明专利

JPH03226651A LIVE WIRE INSULATION DIAGNOSTIC APPARATUS 失效
公开(公告)号：JPH03226651A
公开(公告)日：1991-10-07
申请号：JP2284290
申请日：1990-01-31
申请人： YASKAWA DENKI SEISAKUSHO KK
发明人： HAGA YOSHIAKI , TSUBONE YOSHIFUSA , OSHIYAMA TSUTOMU
IPC分类号： G01R31/12 , G01N21/27
摘要： PURPOSE:To enable diagnosis of insulation where repairs, updating and the like accomplished with a high reliability based on a data base by embedding a probe for optical detection into an insulation layer and detecting the aging condition of the insulation layer from a change in color thereof. CONSTITUTION:This apparatus is equipped with a winding where two rows of insulated conductors 1 are wound in several stages, a probe 4 for optical detection is mounted in prarallel with the conductors 1, a protective layer 2 is impregnated with an epoxy resin to form a main insulation layer 3 and the probe 4 is embedded into the winding. As the temperature of the winding rises with the operating of equipment, the epoxy resin in the main insulation layer 3 discolors. Regarding the state of discoloring, light via an optical lighting fiber 5 from a light source 7 passes through the probe 4 composed of same material as the main insulation layer 3 to be received with an optoelectrical transducer 8 through an optical fiber 6 for detection of light, and a color indication computing section 9 computes a color indication value from a signal of the element 8 to be outputted to an aging value computing section 11. The computing section 11 detects a degree of aging of an insulating material based on a signal of the color indication value provided from the color indication computing section 9 and a signal of the color indication value stored previously in a function generating section 10.

6. 发明专利

JPH03115835A DIAGNOSTIC APPARATUS FOR INSULATION OF LIVE WIRE 失效
公开(公告)号：JPH03115835A
公开(公告)日：1991-05-16
申请号：JP25440889
申请日：1989-09-28
申请人： YASKAWA DENKI SEISAKUSHO KK
发明人： HAGA YOSHIAKI , TSUBONE YOSHIFUSA , OSHIYAMA TSUTOMU
IPC分类号： G01N21/84 , G01N21/27
摘要： PURPOSE:To execute the repairing and renewal of electric machinery with high reliability by embedding a light detecting probe in an insulating layer and operating the degree of deterioration of an insulating material from a change in the color specification value of a main insulating material and a preliminarily stored color specification value. CONSTITUTION:When the temp. of winding rises by the operation of machinery, the epoxy resin infiltrated in a main insulating layer 3 discolors. The light from a light source 7 through an illuminating optical fiber 5 transmits through a light detecting probe 4 composed of the same material as the main insulating layer 3 to be received by a photoelectric transducer 8 through the optical fiber of a light detection path and a color specification operation part 9 operates a color specification value from the signal of the photoelectric transducer 8 and a degree-of-deterioration operation part 11 detects the degree of deterioration of an insulating material from the signal of the color specification value from the color specification operation part 9 and the signal of the color specification value preliminarily stored in a function generating part 10. By this constitution, the lowering of efficiency due to reflection is eliminated and the treatment such as the repairing or renewal in the maintenance of electric machinery can be performed on the basis of data with high reliability.

7. 发明专利

JPS6327771A RESIDUAL LIFE METER 失效
公开(公告)号：JPS6327771A
公开(公告)日：1988-02-05
申请号：JP17242686
申请日：1986-07-21
申请人： YASKAWA DENKI SEISAKUSHO KK
发明人： TSUBONE YOSHIFUSA , OSHIYAMA TSUTOMU
IPC分类号： G01R31/12
摘要： PURPOSE:To enhance the estimation accuracy of residual life, by embedding a plurality of temp. sensors and integrating output at every temp. sensor to calculate deterioration quantity and comparing said deterioration quantity with the deterioration quantity preliminarily calculated of an insulating layer up to a life point. CONSTITUTION:A temp. sensor 4 is embedded in a main insulating layer 2 between the thin sheet materials thereof and the voltage output from the temp. sensor 4 is amplified by an amplifier 5 and subsequently integrated by an integrator 6 to calculate a conversion time thetat as deterioration quantity. The constant of a reaction speed formula is inputted to the integrator 6 from a data input device 11. The conversion time thetat being calculated is compared with the conversion time thetae preliminarily calculated at the life point of an insulating layer having the same insulating constitution by a comparator 7a and the difference DELTAbetween both times is calculated. The temp. information detected by the temp. sensor 4 is inputted to a comparator 8a to be compared with the tolerant temp. inputted from an element 8b and, subsequently, residual life calculated on the basis of the operation method inputted from the data input device 11 is displayed on a display alarm 10 or an alarm is issued.

8. 发明专利

JPS61280738A MANUFACTURE OF HEAT-RESISTANT INSULATED COIL 失效
公开(公告)号：JPS61280738A
公开(公告)日：1986-12-11
申请号：JP12229085
申请日：1985-06-04
申请人： YASKAWA DENKI SEISAKUSHO KK
发明人： OSHIYAMA TSUTOMU , MIYAZAKI HARUO , TANAKA YOSHIYUKI
IPC分类号： H02K3/30 , H01F5/06 , H01F41/12 , H02K15/12
摘要： PURPOSE:To prevent a hardened impregnating substance from developing cracking even in a high temperature atmosphere, by employing a polyester-modified silicon resin which is produced by adding a polyester resin to a silicon resin, which is a vehicle, as an impregnating material. CONSTITUTION:Coils formed by winding insulated wires are impregnated with an impregnating material 5 which is produced by kneading 50-30wt% of the resin component of a resin which is obtained by modifying 60-40% of a methyl silicon resin or a methyl-phenyl silicon resin with a polyester resin, i.e. a polyester-modified silicon resin, 40-20wt% of devitrified mica glass, 30-10wt% of natural mica fine powder, 25-10wt% of titanium oxide and 10-2wt% of aluminum oxide and diluting them with an organic solvent and then the impregnating material 5 is hardened. With this constitution, the hardened impregnating substance does not develop cracking even in a high temperature atmosphere and the anchoring of the windings can be maintained.

9. 发明专利

JPS602059A HEAT RESISTANT INSULATED COIL 失效
公开(公告)号：JPS602059A
公开(公告)日：1985-01-08
申请号：JP10665683
申请日：1983-06-16
申请人： YASKAWA DENKI SEISAKUSHO KK
发明人： OSHIYAMA TSUTOMU , MIYAZAKI HARUO
IPC分类号： H01F41/12 , H02K3/32 , H02K15/12
摘要： PURPOSE:To improve the heat resistance of a heat resistant insulated coil by coating paint which contains devitrified mica glass on a winding conductor, winding conductor, and immersing the conductor with the devitrified mica glass as an immersing agent, thereby hardening and heat treating it. CONSTITUTION:Both-side glass cloth agglomerated mica sheet 2 is contacted with the inner surface 1 of the slot for containing a coil. A paint 4 which is formed by diluting silicone resin and devitrified mica glass with an organic solvent such as xylene in suspension is coated on a conductor 3 which is Ni-plated, a glass thread 5 is laterally wound thereon, the paint 4 is further coated, seized, and insulated twice in this manner. Further, enamel varnish which is thermally decomposed at 400 deg.C or higher on the outermost layer 6 is painted and seized on a winding conductor 7, the conductor 7 is inserted to between the interphase insulating plate 8 formed of the agglomerated mica plate, a wedge 9 formed of the mica plate is inserted, seized at 400 deg.C, and immersed and seized in diluted solution produced by suspending silicone resin and devitrified mica glass and finely pulverized gold fluoride mica, thereby forming a heat resistant coil.

10. 发明专利

JPH02291103A CONDUCTIVE WIRE OF ELECTRIC APPARATUS FOR VACUUM AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH02291103A
公开(公告)日：1990-11-30
申请号：JP11165989
申请日：1989-04-28
申请人： YASKAWA DENKI SEISAKUSHO KK
发明人： TSUBONE YOSHIFUSA , NAKAMURA YOSHIKATSU , OTA NOBUHIKO , OSHIYAMA TSUTOMU
IPC分类号： H01C1/034 , H01B7/00 , H01C17/02 , H01F5/00
摘要： PURPOSE:To reduce a gas emission inside vacuum surroundings and to prevent damage due to vibration by forming the following: a conductive wire formed of a conductive layer which has been formed on a ceramic substrate by a flame- spraying operation; the conductive layer; an insulating layer which has been formed by a flame-spraying operation of a ceramic so as to cover a connection part of a lead wire connected to the conductive layer. CONSTITUTION:A mask according to a prescribed pattern of a conductive wire is formed on a ceramic substrate 1; after that, copper is flame-sprayed by using a plasma; a conductive layer 2 is formed. Lead wires 3 are attached to connection terminals of the conductive layer 2; white alumina is flame-sprayed, by using the plasma, on the conductive layer 2 and on connection parts of the lead wires; a ceramic insulating layer 4 is formed. The conductive layer is formed in an arbitrarily required pattern. Thereby, the conductive wire is coated and filled completely with the ceramic insulating layer 4 whose gas emission is small; even when it is used in vacuum surroundings, a gas is emitted little; the conductive wire is held firmly inside the insulating layer; a dielectric breakdown is not caused by wear or damage of the insulating layer due to vibration.

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