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    • 1. 发明申请
    • SYSTEM FOR LOCATING FAULTS AND ESTIMATING FAULT RESISTANCE IN DISTRIBUTION NETWORKS WITH TAPPED LOADS
    • 用于定位故障的系统和用分段负载分配网络估计故障电阻
    • WO1998029752A1
    • 1998-07-09
    • PCT/FI1997000839
    • 1997-12-31
    • ABB TRANSMIT OYNOVOSEL, DamirHART, DavidHU, YiMYLLYMÄKI, Jorma
    • ABB TRANSMIT OY
    • G01R31/08
    • G01R31/086
    • Both fault location and fault resistance of a fault are calculated by the present method and system. The method and system take into account the effects of fault resistance and load flow, thereby more accurately calculating fault resistance by taking into consideration the current flowing through the distribution network as well as the effect of fault impedance. A direct method calculates fault location and fault resistance directly while an iterative fashion method utilizes simpler calculations in an iterative fashion which first assumes that the phase angle of the current distribution factor Ds is zero, calculates an estimate of fault location utilizing this assumption, and then iteratively calculates a new value of the phase angle beta s of the current distribution factor Ds and fault location m until a sufficiently accurate determination of fault location is ascertained. Fault resistance is then calculated based upon the calculated fault location. The techniques are equally applicable to a three-phase system once fault type is identified.
    • 通过本方法和系统计算故障位置和故障故障电阻。 该方法和系统考虑了故障电阻和负载流量的影响,从而通过考虑流经配电网络的电流以及故障阻抗的影响,更准确地计算故障电阻。 直接方法直接计算故障位置和故障电阻,而迭代方法以迭代方式利用更简单的计算,首先假定电流分布因子Ds的相位角为零,使用该假设计算故障位置的估计,然后 迭代地计算当前分布因子Ds和故障位置m的相位角βs的新值,直到确定故障位置的足够精确的确定。 然后根据计算出的故障位置计算故障电阻。 一旦发现故障类型,这些技术同样适用于三相系统。
    • 2. 发明申请
    • METHOD OF DETECTING AND LOCATING A HIGH-RESISTANCE EARTH FAULT IN AN ELECTRIC POWER NETWORK
    • 在电力网络中检测和定位高电阻接地故障的方法
    • WO1998020356A1
    • 1998-05-14
    • PCT/FI1997000599
    • 1997-10-03
    • ABB TRANSMIT OYLEHTONEN, Matti
    • ABB TRANSMIT OY
    • G01R31/08
    • G01R31/086H02H3/165H02H3/402Y04S10/522
    • The invention relates to detecting and locating a high-resistance earth fault of an electric power network. In the method, the substation is measured at the neutral point voltage ( U o) in phasor format. According to the method, the phase leg voltages of the network are measured in phasor format, the zero-sequence voltage phasor representing the neutral point voltage ( U o) is formed as the phasor sum of the measured phase leg voltages, the zero-sequence impedance ( Z o) is computed by means of a network model, whereafter the zero-sequence voltage ( U o) is compared in phasor format with the phasors of the network phase leg voltages ( U v) and the resultant zero-sequence impedance ( Z o) of the network, and from these computed variables are derived the fault impedances ( Z f) for each phase leg, whereafter the faulted leg is identified as the leg having the greatest value of the real part of the fault impedance ( Z f).
    • 本发明涉及检测和定位电力网络的高电阻接地故障。 在该方法中,以相量格式在中性点电压(uo o)处测量变电站。 根据该方法,以相量格式测量网络的相位腿电压,表示中性点电压(uo o)的零序电压相量形成为测量相位的相量之和 通过网络模型计算零序阻抗(Z0o),之后将零序电压(uo o)以相量格式进行比较 与网络相位腿电压(u U u)的相量和网络的最终零序阻抗(Z oo)的相量,并从这些计算出的变量导出 每个相支路的故障阻抗(uff),之后故障腿被识别为具有故障阻抗(ZZ)的实部的最大值的支路, 。
    • 3. 发明申请
    • ARRANGEMENT FOR ATTACHING AN ELECTRICAL COMPONENT TO A MOUNTING BASE
    • 将电气部件连接到安装基座的安装
    • WO1996024235A1
    • 1996-08-08
    • PCT/FI1996000055
    • 1996-01-29
    • ABB TRANSMIT OYKANGAS, Simo
    • ABB TRANSMIT OY
    • H05K07/02
    • H02B1/04H01F27/06
    • The invention relates to an arrangement for attaching an electrical component (3) to a mounting base (1) and for connecting it galvanically to a terminal block (2) connected to the mounting base (1). According to the invention, the terminal block (2) comprises a first contact piece of a plug-in connector, and the component (3) comprises a second contact piece of the plug-in connector. In addition, the component and the mounting base comprise interlocking parts (8, 9) for attaching the component to the base, whereby when the component is locked to the base, the contact pieces of the plug-in connector provide a galvanic contact between the component (3) and the terminal block (2).
    • 本发明涉及一种用于将电气部件(3)附接到安装基座(1)并用于将其电连接到连接到安装基座(1)的接线端子(2)的布置。 根据本发明,端子块(2)包括插入式连接器的第一接触片,并且部件(3)包括插入式连接器的第二接触片。 此外,部件和安装基座包括用于将部件附接到基座的互锁部分(8,9),由此当部件被锁定到基部时,插入式连接器的接触件提供在 部件(3)和端子台(2)。
    • 4. 发明申请
    • HAND GUIDE
    • 手指
    • WO1996017363A1
    • 1996-06-06
    • PCT/FI1995000642
    • 1995-11-21
    • ABB TRANSMIT OYTIITOLA, TapaniLEHTONEN, Kaarlo
    • ABB TRANSMIT OY
    • H01H03/00
    • H01H9/28
    • The present invention relates to a hand guide (1) arranged to control a switching device via a control tube (7) attached to the switching device at one end, said control tube being attached to the hand guide at the other end, the rotational motion of the control tube being thus produced by means of a control arm (5) provided in the hand guide (1). Today, manual control of a switching device located at a pole is implemented for instance by means of a rotational crank provided at the end of a control tube. Such a crank is, however, visible at all times and thus easily invites vandals. In the hand guide (1) of the invention, unauthorized control of the switching device is prevented in such a manner that the crank, i.e. the control arm (5), provided in the hand guide can be inserted into the centre and into the control tube (7), where it can be locked.
    • 本发明涉及一种手动引导装置(1),其被配置为通过一端连接在开关装置上的控制管(7)来控制开关装置,所述控制管在另一端附接到手指引导件,旋转运动 通过设置在手指导件(1)中的控制臂(5)而产生控制管。 今天,例如通过设置在控制管的端部处的旋转曲柄来实现位于极点处的开关装置的手动控制。 然而,这样的曲柄在任何时候都是可见的,因此容易引发破坏。 在本发明的手指导件(1)中,防止对开关装置的非法控制,使得设置在手指导件中的曲柄(即,控制臂(5))可插入到中心并进入控制器 管(7),可锁定。
    • 5. 发明申请
    • CONTROL DEVICE
    • 控制装置
    • WO1998024101A1
    • 1998-06-04
    • PCT/FI1997000716
    • 1997-11-24
    • ABB TRANSMIT OYLINTUNEN, Harri
    • ABB TRANSMIT OY
    • H01H09/16
    • H01H9/16
    • The present invention relates to a control device in which a spring means controls switching means in a switching device. Such a device is used e.g. in connection with load separators or disconnector equipment. In addition to the spring means, the device of the invention comprises a release spring means (4) for returning the switching means to "Open" position in possible malfunction of the switching device or when remote control is used. In the device of the invention, the control shaft charging the release spring (4) is also provided with a release mechanism for releasing the coupling between the manual control and the release spring of the device after the charging is complete.
    • 本发明涉及一种控制装置,其中弹簧装置控制开关装置中的开关装置。 这样的装置例如使用。 与负载分离器或隔离开关设备有关。 除了弹簧装置之外,本发明的装置包括释放弹簧装置(4),用于在切换装置的可能的故障中或当使用远程控制时将开关装置返回到“打开”位置。 在本发明的装置中,对释放弹簧(4)充电的控制轴还设置有释放机构,用于在充电完成之后释放装置的手动控制和释放弹簧之间的联接。