专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4707576A Arcing contact tip and method for producing such an arcing contact tip or a comparable component 失效
标题翻译：电弧接触尖端和用于制造这种电弧接触尖端或类似部件的方法
公开(公告)号：US4707576A
公开(公告)日：1987-11-17
申请号：US867532
申请日：1986-05-28
申请人： Gernot Gessinger , Renata Sebalj , Wolfgang Widl
发明人： Gernot Gessinger , Renata Sebalj , Wolfgang Widl
IPC分类号： B23K35/30 , C04B37/02 , H01H1/02 , H01H1/025 , H01H1/027 , H01H11/04 , H01H11/06 , H01H33/70 , H01H33/12
CPC分类号： H01H33/7023 , B23K35/302 , C04B37/026 , H01H1/027 , C04B2237/124 , C04B2237/125 , C04B2237/127 , C04B2237/385 , C04B2237/403 , C04B2237/406 , C04B2237/76 , C04B2237/84 , H01H11/04 , H01H33/7061
摘要： The arc withstanding electrodes in an electric circuit breaker for switching high voltages attain greater mechanical strength and improved arc withstanding capabilities by forming the arc withstanding electrodes of a carbon-fiber-reinforced-graphite material which material is constituted of a graphite matrix which is reinforced by carbon fibers embedded therein. A method for forming the carbon-fiber-reinforced-graphite of the arc electrodes and for affixing the arc electrodes to a metal carrier therefor includes the steps of employing a high-temperature solder based on copper and/or silver, containing at least one carbide-forming element such as, for example, Cr.
摘要翻译：用于切换高电压的电路断路器中的电弧耐受电极通过形成碳纤维增强石墨材料的电弧耐受电极而获得更大的机械强度和更好的耐弧能力，该材料由石墨基体构成，石墨基体由碳纤维嵌入其中。用于形成电弧电极的碳纤维增强石墨并用于将电弧电极固定到其金属载体的方法包括以下步骤：使用基于铜和/或银的高温焊料，其包含至少一种碳化物成形元件，例如Cr。

2. 发明授权

US4689708A Zone protective directional relay scheme 失效
标题翻译：区域保护定向中继方案
公开(公告)号：US4689708A
公开(公告)日：1987-08-25
申请号：US787777
申请日：1985-10-15
申请人： Helmut Hager , Jurgen Kopainsky , Kurt Zwahlen
发明人： Helmut Hager , Jurgen Kopainsky , Kurt Zwahlen
IPC分类号： H02H7/26 , H02H7/28
CPC分类号： H02H7/262
摘要： A protective system for protecting elements (for example D) of an electric power system allocates a protection zone to each element. The protection zones are defined by switching points (for example 19', . . . , 24') which isolate the associated element (for example D) from the power system. Each of these switching points is associated with a transmitter/actuator unit (for example 19, . . . , 24). The transmitter/actuator units (for example 19, . . . , 24) produce "open" commands for their associated switching points (for example 19', . . . , 24') if it is determined that a fault has occurred inside the associated protection zone. The "open" commands for the switching points (for example 19', . . . , 24') are formed locally within the vicinity of each of the switching points. This is realized by the transmitter/actuator units (for example 22) which contain two evaluating units (for example 22D, 22L8) which are respectively allocated to different protection zones, and in that all evaluating units allocated to one protection zone (for example 19D, . . . , 24D) communicate with each other via local data links (N) and remote data links (F).
摘要翻译：用于保护电力系统的元件（例如D）的保护系统为每个元件分配保护区域。保护区域由将相关元件（例如D）与电力系统隔离的开关点（例如19'，...，24'）定义。这些切换点中的每一个与发射机/致动器单元（例如，19，...，24）相关联。发射机/执行器单元（例如19，...，24）如果确定在其内部发生故障，则为其相关联的切换点（例如19'，...，24'）产生“打开”命令相关保护区。用于切换点（例如19'，...，24'）的“打开”命令在每个切换点附近局部地形成。这通过包含分配给不同保护区的两个评估单元（例如22D，22L8）的发射器/致动器单元（例如22）实现，并且分配给一个保护区的所有评估单元（例如19D ，...，24D）通过本地数据链路（N）和远程数据链路（F）彼此通信。

3. 发明授权

US4308476A Bar windings for electrical machines 失效
标题翻译：电机绕线
公开(公告)号：US4308476A
公开(公告)日：1981-12-29
申请号：US634186
申请日：1975-11-21
申请人： Roland Schuler
发明人： Roland Schuler
IPC分类号： H02K3/32 , H02K3/40 , H02K15/12
CPC分类号： H02K3/40 , H02K3/32 , Y10S174/22
摘要： A large electrical machine, includes bar windings composed of twisted individual conductors with irregularities formed at the narrow edges of the bar winding. The bar winding is composed of individual insulated conductors and uninsulated conductors. A synthetic mica-resin putty pressed between the conductors fills the spaces between the conductors. Electrically conductive strips covering the putty are electrically connected to the uninsulated conductors.
摘要翻译：一种大型电机，包括由绕制的单个导体组成的条形绕组，其具有形成在条形绕组的窄边缘处的不规则性。条形绕组由单独的绝缘导体和非绝缘导体组成。在导体之间压制的合成云母树脂腻子填充导体之间的空间。覆盖油灰的导电条电连接到非绝缘导体。

4. 发明授权

US4298880A Power thyristor and method of fabrication therefore utilizing control, generating, and firing gates 失效
标题翻译：功率晶闸管和制造方法因此利用控制，产生和击发门
公开(公告)号：US4298880A
公开(公告)日：1981-11-03
申请号：US9913
申请日：1979-02-06
申请人： Roland Sittig
发明人： Roland Sittig
IPC分类号： H01L29/10 , H01L29/423 , H01L29/74
CPC分类号： H01L29/42308 , H01L29/102 , H01L29/74
摘要： A power thyristor formed by four zones of alternating conductivity type and including at least one control gate, at least one generator gate in the vicinity of a respective control gate and at least one firing gate located further away from a respective control gate formed on portions of the cathode-base zone extending to the cathode-side main surface, in which the firing gate is electronically connected to the generator gate with no intervening cathode-base zone. The control gate, generator gate, firing gate, cathode zone and cathode base zone are dimensioned so that the ratio between the lateral path resistance of the cathode base zone between the generator gate and cathode zone, and the corresponding resistance between the firing gate and the cathode zone, and the ratio between the edge-length of the generator gate and the edge-length of the firing gate are such that a current furnished by the generator gate suffices to fire the thyristor in the region beneath the firing gate, even at low anode voltages and small firing currents.
摘要翻译：由四个交变导电类型的区域形成的功率晶闸管，包括至少一个控制栅极，在相应控制栅极附近的至少一个发生器栅极和位于更远离相应控制栅极的至少一个触发栅极阴极基区域延伸到阴极侧主表面，其中触发栅极电连接到发生器栅极，而没有中间阴极基区。控制栅极，发生器栅极，点火门，阴极区域和阴极基极区域的尺寸设计成使得发电机栅极和阴极区域之间的阴极基极区域的横向路径电阻与触发栅极与阴极区域之间的相应电阻之间的比率阴极区，并且发生器栅极的边缘长度与点火门的边缘长度之间的比率使得由发电机门提供的电流足以在触发栅极下方的区域中触发晶闸管，即使在低电平阳极电压和小的点火电流。

5. 发明授权

US4290609A Steam seal 失效
标题翻译：蒸汽密封
公开(公告)号：US4290609A
公开(公告)日：1981-09-22
申请号：US70107
申请日：1979-08-27
申请人： Willy Dumont
发明人： Willy Dumont
IPC分类号： F01D11/04 , F16J15/40
CPC分类号： F01D11/04 , F05D2240/63
摘要： Apparatus for steam sealing a shaft of a steam turbine is disclosed. The apparatus preferably includes at least four sealing rings which encircle the shaft of the steam turbine. The sealing rings are spaced apart to define at least three regions. A first region, closest to the blades of the turbine, receives contaminated steam and exhibits a below-atmospheric pressure. A third region, furthest from the blades of the turbine, also exhibits a pressure which is less than atmospheric pressure, but which pressure is also less than the pressure in the first region. A second region, arranged between said first and third regions, receives uncontaminated steam and exhibits a pressure which is greater than atmospheric pressure.
摘要翻译：公开了用于汽轮机蒸汽密封的装置。该装置优选地包括至少四个环绕蒸汽轮机的轴的密封环。密封环间隔开以限定至少三个区域。最靠近涡轮机叶片的第一区域受到受污染的蒸汽并且表现出低于大气压的压力。距离涡轮机叶片最远的第三区域也表现出小于大气压力的压力，但是该压力也小于第一区域中的压力。布置在所述第一和第三区域之间的第二区域接收未受污染的蒸汽并且表现出大于大气压力的压力。

6. 发明授权

US4283200A Method and apparatus for detecting corrosion in steam turbine installations 失效
标题翻译：用于检测汽轮机设备腐蚀的方法和装置
公开(公告)号：US4283200A
公开(公告)日：1981-08-11
申请号：US90250
申请日：1979-11-01
申请人： Maurice A. Bodmer , Robert Svoboda
发明人： Maurice A. Bodmer , Robert Svoboda
IPC分类号： F01D25/00 , F01D25/32 , G01N17/00
CPC分类号： G01N17/00 , Y10T436/175383 , Y10T436/193333
摘要： A process and a device for detecting the occurrence of corrosion during the operation of steam turbines are disclosed, wherein working medium is taken from the steam turbine and partially condensed. The condensate is separated from the remaining steam and the quantities of both the remaining steam and the condensate are determined. The condensate is continuously examined for aggressive materials. The condensate is then subjected to chemical and physical analysis in a test apparatus. To detect corrosivity, a prestressed metal test piece and a metal bursting disc are arranged in a condensate vessel in contact with the condensate.
摘要翻译：公开了一种用于检测在蒸汽涡轮机运行期间的腐蚀发生的过程和装置，其中工作介质从蒸汽轮机中取出并部分冷凝。冷凝物与剩余的蒸汽分离，并确定剩余蒸汽和冷凝物的量。连续检查冷凝物是否有侵蚀性物质。然后在试验装置中对冷凝物进行化学和物理分析。为了检测腐蚀性，在与冷凝水接触的冷凝水容器中布置预应力金属试件和金属爆破片。

7. 发明授权

US4271391A Digital voltmeter with electro-optical indication of the waveform 失效
标题翻译：数字电压表，带电光指示波形
公开(公告)号：US4271391A
公开(公告)日：1981-06-02
申请号：US90104
申请日：1979-11-01
申请人： Allan R. Kmetz
发明人： Allan R. Kmetz
IPC分类号： G01R13/00 , G01R13/20 , G01R13/40 , G01R19/25 , G01R19/16 , G01R15/08
CPC分类号： G01R19/25 , G01R13/408
摘要： A digital voltmeter device is disclosed which displays both the numerical value of a measured voltage and a visual representation of an input waveform. The device includes an electro-optical display matrix utilizing display elements arranged in lines and columns. In order to make maximum use of the display matrix for representing input waveforms, the peak-to-peak voltage of the input waveform is measured and utilized as a reference for an analog to digital converter having output signals which form the address signals for the display matrix. The peak values of the input waveform thus appear at the top and bottom of the display matrix respectively.
摘要翻译：公开了一种显示测量电压的数值和输入波形的视觉表示的数字电压表装置。该装置包括利用以行和列排列的显示元件的电光显示矩阵。为了最大限度地利用用于表示输入波形的显示矩阵，测量输入波形的峰 - 峰电压并将其用作具有形成用于显示的地址信号的输出信号的模数转换器的基准矩阵。因此，输入波形的峰值分别出现在显示矩阵的顶部和底部。

8. 发明授权

US4268767A Electrical machine with an axial-flow fan 失效
标题翻译：带有轴流风机的电机
公开(公告)号：US4268767A
公开(公告)日：1981-05-19
申请号：US42617
申请日：1979-05-25
申请人： Josip Domitrovic , Urban Ulrich
发明人： Josip Domitrovic , Urban Ulrich
IPC分类号： H02K9/00 , H02K9/06
CPC分类号： H02K9/00 , H02K9/06
摘要： An electrical machine with an axial-flow fan and a two-part ventilator encasing is disclosed. One part of the ventilator encasing is non-moveable with respect to the fan blade of the axial-flow fan. The second encasing part is moveable with respect to the fan blade, and can be moved from a first position in which the moveable encasing part is adjacent to the fan blade to a second position axially displaced from the first position. The axial movement of the moveable encasing part facilitates maintenance and disassembly work on the machine which require a significant clearance between the fan blade and the encasing. The moveable encasing part is moveably mounted on a bearing bracket associated with the shaft of the rotor of the machine. The shaft of the rotor is used to coaxially position the moveable encasing part with respect to the axial-flow fan and the axial-flow fan blade. Means are provided to lock the moveable encasing part in the first axial position, and to maintain the quality of a seal between the moveable and non-moveable encasing parts during machine operation.
摘要翻译：公开了具有轴流风扇和两部分呼吸机封装的电机。呼吸机包装的一部分相对于轴流风扇的风扇叶片是不可移动的。第二包围部分相对于风扇叶片可移动，并且可以从其中可移动包围部分与风扇叶片相邻的第一位置移动到从第一位置轴向移位的第二位置。可移动包装部件的轴向移动便于机器上的维护和拆卸工作，这需要风扇叶片和包装件之间的大量间隙。可移动的包装部分可移动地安装在与机器的转子的轴相关联的轴承托架上。转子的轴用于相对于轴流风扇和轴流风扇叶片同轴地定位可移动的包装部分。提供装置以将可移动包装部件锁定在第一轴向位置，并且在机器操作期间保持可移动和不可移动的包装部件之间的密封质量。

9. 发明授权

US4214474A Density monitoring apparatus 失效
标题翻译：密度监测仪
公开(公告)号：US4214474A
公开(公告)日：1980-07-29
申请号：US948473
申请日：1978-10-04
申请人： Rolf Bleidt , Joachim Nasterlack , Kurt Neubeck , Achim Gareus
发明人： Rolf Bleidt , Joachim Nasterlack , Kurt Neubeck , Achim Gareus
IPC分类号： G01N9/00 , G01D3/028 , G01L7/04 , G01L19/04 , H01H33/56 , G01N9/26
CPC分类号： H01H33/563 , G01L19/04 , G01L7/048
摘要： A density monitoring gauge is disclosed which modifies a Bourdon tube manometer by introducing a compensating element between the end of the Bourdon tube and the pointer actuating mechanism. The compensating element is designed to accommodate for changes in circumferential length of the Bourdon tube induced by temperature as well as to compensate for pressure changes in a closed system attributed directly to changes in gas temperature within that closed system. The compensating means may consist of a bimetallic member having an .OMEGA. configuration. Alternatively, the compensating means may include a pair of synthetic material rods connected by a thermally stable member such that linear thermal expansion of the rods is additively connected between the tube spring and the pointer actuating mechanism. The density measuring device is desirably used in connection with sulfur hexafluoride insulated electrical switching gear. If desired, the density monitor may be arranged with an electrical alarm to indicate the presence of a leak.
摘要翻译：公开了一种密度监测仪，其通过在布尔登管的端部和指针致动机构之间引入补偿元件来修改波登管压力计。补偿元件被设计为适应由温度引起的波登管的周长变化，以及补偿直接归因于封闭系统内的气体温度变化的封闭系统中的压力变化。补偿装置可以由具有OMEGA构造的双金属构件组成。或者，补偿装置可以包括通过热稳定构件连接的一对合成材料杆，使得杆的线性热膨胀被相加地连接在管弹簧和指针致动机构之间。密度测定装置优选与六氟化硫绝缘电气开关装置连接使用。如果需要，密度监测器可以布置有电报警器以指示存在泄漏。

10. 发明授权

US4831487A Reactor switch arc-back limiting circuit 失效
标题翻译：反应器开关回弧限制电路
公开(公告)号：US4831487A
公开(公告)日：1989-05-16
申请号：US73377
申请日：1987-07-14
申请人： Erich Ruoss
发明人： Erich Ruoss
IPC分类号： H01H9/54 , H01H33/16 , H01H33/59
CPC分类号： H01H33/161
摘要： A reactor switch has a switching point which is arranged between a high-voltage reactor and a high-voltage line. When this switch is being switched off, the occurrence of arc-back oscillations with excessively high rate voltage changes is avoided in a simple and reliable manner. This is achieved in that the switching point is connected in parallel with a voltage-dependent resistor. This resistor, which preferably contains a metal oxide such as zinc oxide, has a current/voltage characteristic which limits the recurring voltage across the switching point in such a manner that the skewing rate of the voltage of a high-frequency arc-back oscillation occurring during an arc-back of the switching point always remains below a predetermined value.
摘要翻译：电抗器开关具有设置在高压电抗器和高压线路之间的开关点。当该开关被关闭时，以简单可靠的方式避免了具有过高电压变化的回弧振荡的发生。这是因为开关点与电压相关的电阻并联连接。优选含有金属氧化物如氧化锌的电阻器具有电流/电压特性，其限制了跨越开关点的重复电压，使得发生高频回弧振荡的电压的偏斜率在切换点的回弧期间总是保持低于预定值。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式