公开(公告)号：US12189406B2

公开(公告)日：2025-01-07

申请号：US17422669

申请日：2021-02-05

Applicant: Durr Systems, Inc.

Inventor： James Cash ,  Jeffrey Rudolph

IPC: B03C3/16 ,  B01D47/06 ,  B03C3/41 ,  B03C3/49 ,  B03C3/53 ,  B03C3/78 ,  G05F1/14 ,  G05F1/147 ,  H02J3/12 ,  B01D47/02

Abstract: Method and apparatus for cleaning pollution control equipment, such as particulate removal devices, including wet electrostatic precipitators (WESP). The apparatus may include a housing having a chamber, at least one process gas inlet in fluid communication with the chamber, a process gas outlet spaced from the at least one process gas inlet and in fluid communication with the chamber, one or more ionizing electrodes in the housing and one or more collection electrodes or plates in the housing. Sealing liquid is provided and introduced into the chamber in an amount sufficient to submerge the at least one process gas inlet and stop the flow of contaminated gas into the chamber.

公开(公告)号：US20230058132A1

公开(公告)日：2023-02-23

申请号：US17893717

申请日：2022-08-23

Applicant: Hubbell Incorporated

Inventor： Hung Van Tu ,  Thaichong Li ,  James Robert Wulff ,  Lawrence Deward Bach ,  Ravi Manda ,  Murty Yalla

IPC: G05F1/147

Abstract: A control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, a third regulator control configured to control a third tap changer associated with the third phase line, and an electronic processor coupled to the first regulator control, the second regulator control, and the third regulator control. The electronic processor is configured to regulate the voltage of the multi-phase system using the first, second, and third regulator controls.

公开(公告)号：US10082810B2

公开(公告)日：2018-09-25

申请号：US15385437

申请日：2016-12-20

Applicant: General Electric Technology GmbH

Inventor： Thomas Ambrose Dauzat

IPC: G05F1/14 ,  G05F1/147 ,  H01F29/02 ,  G05F1/66 ,  H02M5/12 ,  G05F1/24 ,  G05F1/253

CPC classification number: G05F1/14 ,  G05F1/147 ,  G05F1/24 ,  G05F1/253 ,  G05F1/66 ,  H01F29/02 ,  H01F29/025 ,  H01H9/0005 ,  H01H9/0011 ,  H01H9/40 ,  H02M5/12

Abstract: Embodiments of the disclosure pertain to a voltage regulator system having a voltage regulation controller and a transformer assembly. The transformer assembly includes a coil winding, a multi-contact tap arrangement connected to the coil winding, and a multifurcated tap changer system that includes a first tap changer having a contactor element which makes contact with a first contact of the multi-contact tap arrangement when the controller provides a positioning stimulus based on sensing a voltage deviation from a nominal output voltage of the voltage regulator system. The multifurcated tap changer system further includes a second tap changer that is mechanically ganged to the first tap changer and includes another contactor element arranged to automatically make contact with a second contact of the multi-contact tap arrangement when the contactor element of the first tap changer makes contact with the first contact of the multi-contact tap arrangement.

公开(公告)号：US09941064B2

公开(公告)日：2018-04-10

申请号：US14906331

申请日：2014-08-01

Applicant: Maschinenfabrik Reinhausen GmbH

Inventor： Christian Hammer ,  Andreas Sachsenhauser ,  Konrad Raedlinger ,  Max Weidinger ,  Thomas Schuster

IPC: G05F1/14 ,  G05F1/147 ,  H01H9/00 ,  H01F29/02

CPC classification number: H01H9/0027 ,  G05F1/147 ,  H01F29/02 ,  H01H9/0011 ,  H01H9/0016 ,  H01H9/0038

Abstract: In an on-load tap changer (10) for controlling voltage of a tapped transformer (15) it is provided that the tapped transformer (15) has at least one regulatable phase (16) that has a first winding (20) and a second winding (30); the first winding (20) has a regulating winding (21) with even-numbered winding taps (23) and a main winding (22), and the second winding (30) has a regulating winding (31) with odd-numbered winding taps (33) and a main winding (32); the first winding (20) and the second winding (30) having the regulating windings (21, 31) of the even-numbered and of the odd-numbered winding taps (23, 33), are inductively coupled; the on-load tap changer (10) has a selector (40) for the alternating power-free preselection of the even-numbered or odd-numbered winding taps (23, 33) to be switched.

公开(公告)号：US20150293544A1

公开(公告)日：2015-10-15

申请号：US14439157

申请日：2013-12-19

Applicant: Xiaoming LI

Inventor： Xiaoming Li

IPC: G05F1/147

CPC classification number: G05F1/147 ,  H01F29/04 ,  H01H9/0005 ,  H01H9/542

Abstract: A terminal I thereof is respectively connected with transition switches, and a terminal II is respectively connected with transition switches; the other terminals of the transition switches are jointly connected and are connected with the terminal through a saturable reactor and a thyristor switch; the other terminals of the transition switches are jointly connected and are connected with the terminal through a linear reactor, a saturable reactor and an overvoltage triggering thyristor circuit; an odd-numbered side main contact is respectively connected with the terminal I and a common terminal, and an even-numbered side main contact is respectively connected with the terminal II and the common terminal; the terminals of non-common terminals of a main path and a transition path are further connected with a bidirectional voltage stabilizing circuit.

Abstract translation: 其端子I分别与转换开关连接，端子II分别与转换开关连接; 转换开关的其他端子共同连接，并通过可饱和电抗器和晶闸管开关与端子连接; 转换开关的其他端子共同连接，并通过线性电抗器，可饱和电抗器和过电压触发晶闸管电路与端子连接; 奇数侧主触点分别与端子I和公共端子连接，偶数侧主触头分别与端子II和公共端子连接; 主路径和过渡路径的非公共端子的端子还与双向稳压电路连接。

公开(公告)号：US20150268677A1

公开(公告)日：2015-09-24

申请号：US14223001

申请日：2014-03-24

Applicant: Brandon & Clark, Inc.

Inventor： Scott W. Clark

IPC: G05F1/147

CPC classification number: G05F1/147

Abstract: A system for controlling voltage comprising a transformer having a terminal, a plurality of windings and a plurality of winding taps. A voltage monitor coupled to the terminal of the transformer and configured to generate voltage data representing a voltage appearing at the terminal of the transformer. A non-bridging tap changer controller coupled to the voltage monitor and configured to generate tap changer control data for changing a configuration of a tap changer in response to the voltage data. A tap changer motor coupled to the non-bridging tap changer controller and configured to move the tap changer in response to the tap changer control data.

Abstract translation: 一种用于控制电压的系统，包括具有端子，多个绕组和多个绕组抽头的变压器。 耦合到变压器的端子并被配置为产生表示变压器端子处出现的电压的电压数据的电压监视器。 耦合到所述电压监视器并被配置为产生用于响应于所述电压数据改变分接开关的配置的抽头变换器控制数据的非桥接抽头变换器控制器。 分接开关电机，其耦合到非桥接抽头变换器控制器并且被配置为响应于分接开关控制数据移动分接开关。

公开(公告)号：US5804953A

公开(公告)日：1998-09-08

申请号：US511016

申请日：1995-08-03

Applicant: Richard N. Bowyer ,  John S. Dale ,  Geoffrey West

Inventor： Richard N. Bowyer ,  John S. Dale ,  Geoffrey West

IPC: H02M1/10 ,  H02M5/10 ,  H02M5/458 ,  H02P13/06 ,  G05F1/147 ,  G05F1/16 ,  H02J1/00 ,  H02M1/12

CPC classification number: H02M1/10 ,  H02M5/10 ,  H02M5/458 ,  H02P13/06 ,  B63J2003/043

Abstract: A power converter for converting shore power voltage, phase, and frequency for shipboard use includes a variable inductance input transformer that can be connected to the shore power. The primary windings of the transformer have a plurality of taps, and a respective computer-controlled switch is connected between adjacent taps to selectively establish a closed circuit or an open circuit between the taps and thereby configure the primary windings as a low or high voltage "delta" or "wye", as appropriate for the shore power voltage. The output of the input transformer is sent to a variable speed drive, then to an output transformer, and thence to the distribution bus of the ship. A voltage regulator regulates the output voltage of the output transformer. If desired, a phase selector can be provided between the shore power and input transformer to establish the phase characteristics (i.e., single, two-, or three-phase) of the power signal that is output by the input transformer, depending upon the phase characteristics of the shore power that is connected to the input transformer.

公开(公告)号：US5633580A

公开(公告)日：1997-05-27

申请号：US496807

申请日：1995-06-29

Applicant: John J. Trainor ,  Carl J. Laplace ,  William M. Thorsen, Jr.

Inventor： John J. Trainor ,  Carl J. Laplace ,  William M. Thorsen, Jr.

IPC: G05F1/147

CPC classification number: G05F1/147

Abstract: A tap changer including a tap positionable to vary the winding ratio of the transformer in response to changes in an electric load on the transformer is disclosed herein. The transformer includes an electric drive which is responsive to raise or lower signals applied thereto in order to selectively position the tap by the raising or lowering of the tap and thereby raising or lowering the transformer winding ratio. Upon sensing the current of the motor control signals, an up/down counter is incremented or decremented. Accordingly, when a tap change signal is detected, the direction of tap changer movement may be determined, based upon the value of the up/down counter. In this way the tap position is also accurately determined and known.

Abstract translation: 本文公开了一种分接开关，其包括可分接位置以根据变压器上的电负载变化来改变变压器的绕组比。 变压器包括电驱动器，其响应于施加到其上的信号的升高或降低，以便通过提升或降低抽头来选择性地定位抽头，从而提高或降低变压器绕组比。 一旦检测到电机控制信号的电流，增/减计数器就会递增或递减。 因此，当检测到抽头变换信号时，可以基于上/下计数器的值来确定抽头切换器移动的方向。 以这种方式，也可以精确地确定和知道抽头位置。

公开(公告)号：US3189816A

公开(公告)日：1965-06-15

申请号：US10755861

申请日：1961-05-03

Applicant: CHIRANA PRAHA

Inventor： MNATA BROZEK

IPC: G05F1/147 ,  H05G1/32

CPC classification number: G05F1/147 ,  H05G1/32

公开(公告)号：US2901684A

公开(公告)日：1959-08-25

申请号：US68121957

申请日：1957-08-30

Applicant: MC GRAW EDISON CO

Inventor： BRONIKOWSKI RAYMOND J

IPC: G05F1/147

CPC classification number: G05F1/147