ELECTRICAL NETWORK FAULT LOCATION BY DISTRIBUTED VOLTAGE MEASUREMENTS
    4.
    发明申请
    ELECTRICAL NETWORK FAULT LOCATION BY DISTRIBUTED VOLTAGE MEASUREMENTS 有权
    电气网络故障位置通过分布式电压测量

    公开(公告)号:US20100102824A1

    公开(公告)日:2010-04-29

    申请号:US12450667

    申请日:2008-04-16

    CPC classification number: G01R31/088 G01R35/00

    Abstract: A method of locating a fault on an electrical network energized by a source uses a form of triangulation of voltage measurements at least three different locations on the network, with at least one of the locations situated upstream from the fault with respect to the source. Voltage phasors corresponding to the voltages measured during the fault are time synchronized. Conductors of the network involved in the fault are determined as a function of characteristics of the voltage phasors and a fault current causing a voltage drop at one of the locations with respect to an initial voltage value is evaluated. A position of the fault is evaluated at a point of the network where a ratio between a difference of the voltages measured at two of the locations and an impedance between one of the two locations and the point is equal to the fault current.

    Abstract translation: 在由电源供电的电网上定位故障的方法使用对网络上至少三个不同位置的电压测量进行三角测量的形式,其中至少一个位置相对于源相对于故障位于上游。 与故障期间测量的电压相对应的电压相量是时间同步的。 评估涉及故障的网络的导体作为电压相量的特性的函数,并且评估导致相对于初始电压值的位置之一处的电压降的故障电流。 故障点的位置在网络点处被评估,其中在两个位置处测量的电压差与两个位置之一之间的阻抗与该点之间的阻抗等于故障电流之间的比率。

    Process for production of essentially pure delta-9-tetrahydrocannabinol

    公开(公告)号:US20250000840A1

    公开(公告)日:2025-01-02

    申请号:US18765229

    申请日:2024-07-06

    Abstract: The present invention describes a method which outlines a process for conversion of CBD to a Δ9-tetrahydrocannabinol (Δ9-THC) compound or derivative thereof involving treating a naturally produced CBD intermediate compound with an organoaluminum-based Lewis acid catalyst, under conditions effective to produce the Δ9-tetrahydrocannabinol compound or derivative thereof at a relatively high concentration. The source of the CBD is from industrial hemp having less than 0.3% Δ9-THC and extracting and purifying a CBD distillate or isolate or a combination thereof. This procedure will produce Δ9-THC that is essentially free from any other cannabinoids other than some trace amounts of the initial CBD starting material, or about 95% Δ9-THC and 2-4% CBD. Another aspect of the present invention relates to a process for further purification and enrichment of the Δ9-THC using distillation and collecting an essentially pure fraction of Δ9-THC using additional distillation or enrichment form of purification. Included are methods and processes to scale the reaction from the lab to large scale manufacturing. Included are methods for adding a molecule marker to authenticate high purity Δ9-THC products. Formulations and uses for pharmaceuticals, nutraceuticals, food products, and topicals are also provided.

    Electrical network fault location by distributed voltage measurements
    8.
    发明授权
    Electrical network fault location by distributed voltage measurements 有权
    电网故障位置采用分布电压测量

    公开(公告)号:US08269503B2

    公开(公告)日:2012-09-18

    申请号:US12450667

    申请日:2008-04-16

    CPC classification number: G01R31/088 G01R35/00

    Abstract: A method of locating a fault on an electrical network energized by a source uses a form of triangulation of voltage measurements at at least three different locations on the network, with at least one of the locations situated upstream from the fault with respect to the source. Voltage phasors corresponding to the voltages measured during the fault are time synchronized. Conductors of the network involved in the fault are determined as a function of characteristics of the voltage phasors and a fault current causing a voltage drop at one of the locations with respect to an initial voltage value is evaluated. A position of the fault is evaluated at a point of the network where a ratio between a difference of the voltages measured at two of the locations and an impedance between one of the two locations and the point is equal to the fault current.

    Abstract translation: 在由电源供电的电网上定位故障的方法使用在网络上的至少三个不同位置处对电压测量进行三角测量的形式,其中至少一个位置位于故障相对于源的上游。 与故障期间测量的电压相对应的电压相量是时间同步的。 评估涉及故障的网络的导体作为电压相量的特性的函数,并且评估导致相对于初始电压值的位置之一处的电压降的故障电流。 故障点的位置在网络点处被评估,其中在两个位置处测量的电压差与两个位置之一之间的阻抗与该点之间的阻抗等于故障电流之间的比率。

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