BELLOWS ACTUATOR FOR PRESSURE AND FLOW CONTROL
    42.
    发明公开
    BELLOWS ACTUATOR FOR PRESSURE AND FLOW CONTROL 有权
    BALGSTELLGLIED压力和流量控制

    公开(公告)号:EP1337760A2

    公开(公告)日:2003-08-27

    申请号:EP01996689.4

    申请日:2001-11-13

    Applicant: ABB, Inc.

    CPC classification number: F15B15/10 F15B2013/008

    Abstract: The actuator (2) can be used to apply fluids to the web of a papermaking machine. The actuator comprises a housing (4) having a first inlet (16) connectable to the fluid source and a second inlet (10) connectable to a pressure source. A resilient bellows structure (30) extends between the first and second inlets within the housing to define an internal region of the bellows structure in sealed communication with one of the first and second inlets and an external region of the bellows structure in sealed communication with the other inlet. A valve member (50) adapted to move with the bellows structure is provided to open and close the first inlet to vary the flow of fluid from the fluid source and maintain a pressure related to a balance of forces of the bellows structures. An outlet (58) from the housing in communication with the first inlet permits the exit of the flow of fluid to a flow controlling orifice. A pneumatic control signal provided to the second inlet controls expansion or contraction of the bellows structure.

    SECURED FAULT DETECTION IN A POWER SUBSTATION
    43.
    发明公开
    SECURED FAULT DETECTION IN A POWER SUBSTATION 审中-公开
    变电站安全故障检测

    公开(公告)号:EP3271985A1

    公开(公告)日:2018-01-24

    申请号:EP16765891.3

    申请日:2016-03-21

    Applicant: ABB Inc.

    CPC classification number: G01R31/025 G01R31/44 H02H7/261 H02H7/28

    Abstract: Systems and methods for fault detection and protection in electric power systems that evaluates electromagnetic transients caused by faults. A fault can be detected using sampled data from a first monitored point in the power system. Detection of fault transients and associated characteristics, including transient direction, can also be extracted through evaluation of sample data from other monitored points in the power system. A monitoring device can evaluate whether to trip a switching device in response to the detection of the fault and based on confirmation of an indication of detection of fault transients at the other monitored points of the power system. The determination of whether to trip or activate the switching device can also be based on other factors, including the timing of receipt of an indication of the detection of the fault transients and/or an evaluation of the characteristics of the detected transients.

    SYSTEM AND METHOD FOR AUTOMATED AND SEMIAUTOMATED CONFIGURATION OF FACILITY AUTOMATION AND CONTROL EQUIPMENT
    46.
    发明公开
    SYSTEM AND METHOD FOR AUTOMATED AND SEMIAUTOMATED CONFIGURATION OF FACILITY AUTOMATION AND CONTROL EQUIPMENT 有权
    系统和方法的自动化和半自动配置和ANLAGENAUTOMATISIERUNGS--STEUERUNGSAUSRÜSTUNG

    公开(公告)号:EP3132595A1

    公开(公告)日:2017-02-22

    申请号:EP14725331.4

    申请日:2014-04-16

    Applicant: ABB Inc.

    Abstract: A system and method for configuring devices on a device network in communication with a router on a control network. An unconfigured device installed on the network receives a poll at a predetermined address from a router. The router receives a response to the poll from the unconfigured device, and requests identification of devices having a range of device object IDs and stores the MAC addresses of responding devices and the device object IDs. The unconfigured device is configured to have the proposed MAC address and device object ID.

    Abstract translation: 一种用于在通信与控制网络上的路由器的网络设备上的配置设备的系统和方法。 安装在网络上的未配置的设备在从路由器的预定地址接收轮询。 路由器接收到来自未配置的设备的轮询的响应,并请求具有一定范围的设备的对象ID,并存储响应设备和设备对象ID的MAC地址的设备的标识。 未配置的设备被配置为具有建议MAC地址和设备对象ID。

    LIQUID METAL CLEANLINESS ANALYZER
    48.
    发明公开
    LIQUID METAL CLEANLINESS ANALYZER 审中-公开
    分析装置液态金属纯度

    公开(公告)号:EP2906927A1

    公开(公告)日:2015-08-19

    申请号:EP13846869.9

    申请日:2013-10-10

    Applicant: ABB Inc.

    Abstract: An apparatus to detect and measure suspended particles in a molten metal where the suspended particles have an associated noise frequency range has in addition to the electrically non-conductive barrier for immersion in the molten-metal, a device to move the molten metal through an orifice in the barrier and electrodes, a time varying excitation source that generates an AC current at a predetermined range of excitation frequency that is out of the predominant noise frequency range to generate an AC signal that is representative of the measure of the suspended particles. A detector detects and quantifies from the measurement AC signal the suspended particles. The detector can be a synchronous detector.

    CURRENT SENSOR
    49.
    发明公开
    CURRENT SENSOR 审中-公开
    电流传感器

    公开(公告)号:EP2737324A1

    公开(公告)日:2014-06-04

    申请号:EP12746410.5

    申请日:2012-07-12

    Applicant: ABB Inc.

    CPC classification number: G01R15/183 G01R19/0015

    Abstract: A current sensor (70) is provided for measuring DC current (Ι^) in a primary conductor (40) also carrying AC current (lac). The current sensor includes a ferromagnetic core (50) through which the primary conductor may extend. The core has a narrow air gap (56) formed there in and a magnetic flux sensor (58) is disposed in the air gap. A secondary winding (60) is mounted to the core and has an impedance (72) connected therein. The impedance has a value of substantially zero at one or more frequencies of the AC current. The impedance may be a short or an impedance source that includes a capacitor (76) and an inductor (74).

    Abstract translation: 提供电流传感器(70),用于测量还承载AC电流(Iac)的初级导体(40)中的DC电流(I ^)。 电流传感器包括主导体可以延伸通过的铁磁芯(50)。 芯部具有形成在其中的窄的气隙(56),并且磁通量传感器(58)设置在气隙中。 次级绕组(60)安装在铁芯上并具有连接在其中的阻抗(72)。 在AC电流的一个或多个频率处阻抗具有基本为零的值。 阻抗可以是包括电容器(76)和电感器(74)的短路或阻抗源。

    DETECTION OF WELDED SWITCH CONTACTS IN A LINE CONVERTER SYSTEM
    50.
    发明公开
    DETECTION OF WELDED SWITCH CONTACTS IN A LINE CONVERTER SYSTEM 审中-公开
    焊接开关触头在线路转换器系统PROOF

    公开(公告)号:EP2671315A2

    公开(公告)日:2013-12-11

    申请号:EP11724925.0

    申请日:2011-06-03

    Applicant: ABB Inc. ABB OY

    CPC classification number: H02M1/32

    Abstract: A system for the detection of welded contacts in a circuit of a line converter system has a plurality of inverter switches, a plurality of utility switches in which a pair of utility switches is connected in series through a line to a utility, a voltage detector, an electronic controller, and a DC input source. The line converter system converts incoming DC power into AC output power that is delivered to the utility grid. The voltage detector measures the voltage across a first node and a second node of the circuit and provides an output that is interpreted by an electronic controller for each step performed during a method of detection of welded contacts. The detection method has a sequence of test steps in which at least one switch is opened and/or closed, a DC bus of the inverter or the utility grid is used as a stimulus voltage, and the voltage is measured. If a voltage is not detected across the first and second nodes, the test sequence is continued until a welded contact is detected or the electronic controller determines that none of the contacts are welded. If the controller determines that none of the contacts are welded, the line converter system is permitted to connect and supply AC power to the utility.

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