公开(公告)号：EP0879497A1

公开(公告)日：1998-11-25

申请号：EP96905328.0

申请日：1996-01-29

Applicant: ABB POWER T & D COMPANY INC.

Inventor： KHAN, Aftab, H. ,  WONG, Willie, K. ,  TIMKO, Kevin, J. ,  RECKLEFF, John, G.

IPC: H02J3

CPC classification number: H02J3/1807 ,  H02J3/1828 ,  H02J3/24 ,  Y02E40/30

Abstract: A dynamic mechanically-switched damping (DMSD) system is described which utilizes one or more mechanical switches and appropriate controls to switch series or shunt reactive impedances (14) in order to provide power oscillation damping in power systems. The DMSD system provides a controller (16) which can be configured based on the number of mechanical switches in the DMSD system, the type of reactive impedances interfaced to the power system by each switch and the magnitude of each of the reactive impedance. The DMSD system monitors parameters of the power system (17, 18) and the controller generates a modulation signal based on the monitored parameters. The modulation signal is processed to identify a reactive impedance of the available DMSD system reactive impedances required to damp power oscillations. Appropriate switches (32) are selected for supplying the required reactive impedance. A switching control signal is generated and output to each of the selected switches to synchronously open or close the switch at a predetermined instant.

公开(公告)号：EP0671009B1

公开(公告)日：1998-09-23

申请号：EP92925121.3

申请日：1992-11-05

Applicant: ABB Power T&D Company Inc.

Inventor： MUNDAY, Mark, L. ,  HEMMINGER, Rodney, C.

IPC: G01R21/133 ,  G01R35/04 ,  G05B15/00

CPC classification number: G06Q30/04 ,  G01R21/133 ,  H02J13/0055 ,  Y04S50/12

Abstract: The meter includes a first processor (14) for determining electrical energy from voltage (12A, 12B, 12C) and current signals (18A, 18B, 18C) and for generating an energy signal (42, 44, 46, 48) representative of the electrical energy determination and a second processor (16) for receiving the energy signal and for generating an indication signal representative of said energy signal. An option connector (38) is connected to the first and second processors (14, 16), whereby the energy signal is provided to the option connector (38) and a communication connection (40) is provided between the option connector (38) and the second processor (16). It is also preferred to provide the option connector (38) with certain operation signals such as a power fail signal, a master reset signal, an end of demand signal, a KYZ signal, and the potential to communicate with various components of the meter, such as serial data communication, communication signals transmitted and received through an optical port and display signals. It is also preferred for the first processor (14) to include a comparator, connected to receive a precision voltage (22) and a reference voltage (28), wherein a comparator signal is generated whenever the reference voltage exceeds the precision voltage.

公开(公告)号：EP0857978A2

公开(公告)日：1998-08-12

申请号：EP98200809.6

申请日：1992-02-21

Applicant: ABB Power T&D Company Inc.

Inventor： Hemminger, Rodney C. ,  Munday, Mark L.

IPC: G01R22/00

CPC classification number: G06Q30/04 ,  G01R21/133 ,  H02J13/0055 ,  Y04S50/12

Abstract: An apparatus for electronically metering electrical energy, said electrical energy comprising voltage and current characteristics, wherein voltage and current signals representative of said voltage and current characteristics are provided. The apparatus comprises a first processor, connected to receive said voltage and current signals, for determining electrical energy from said voltage and current signals and for generating an energy signal representative of the electrical energy determination, said first processor comprising a memory for the storage of instructions, said first processor performing electrical energy determinations in response to the execution of said instructions. A modification means, is connected to said first processor, for modifying the instructions executed by said first processor; and an optical port, is connected to said modification means, for receiving and transmitting radiant energy signals; and an option connector, is connected to said modification means, for receiving and transmitting electrical signals, wherein an execution signal is received by one of said optical port and said option connector to modify the instructions executed by said first processor.

Abstract translation: 一种用于电子计量电能的装置，所述电能包括电压和电流特性，其中提供表示所述电压和电流特性的电压和电流信号。 该装置包括第一处理器，其连接以接收所述电压和电流信号，用于根据所述电压和电流信号确定电能，并产生表示电能确定的能量信号，所述第一处理器包括用于存储指令的存储器 所述第一处理器响应于所述指令的执行而执行电能确定。 修改装置连接到所述第一处理器，用于修改由所述第一处理器执行的指令; 和光端口连接到所述修改装置，用于接收和发送辐射能信号; 和选项连接器连接到所述修改装置，用于接收和发送电信号，其中执行信号由所述光学端口和所述选项连接器中的一个接收，以修改由所述第一处理器执行的指令。

公开(公告)号：EP0745262A1

公开(公告)日：1996-12-04

申请号：EP95910935.0

申请日：1995-02-07

Applicant: ABB POWER T & D COMPANY INC.

Inventor： MEYER, Jeffry, R. ,  FREEMAN, Willie, B. ,  JOHNSON, David, S.

IPC: H01H33 ,  H02B13 ,  H01H9

CPC classification number: H01H33/022 ,  H01H9/563 ,  H02B13/0352

Abstract: The invention provides a high performance circuit breaker with an independent pole operation linkage and conical composite bushings. A mechanical linkage for independently opening and closing a plurality of associated switches is provided by the invention. The linkage comprises a plurality of connecting rods (32-34) that provide the initial driving force to open or close the switches, cranks (50) for opening and closing the contacts (12, 14, 15, 19) of respective switches, linking elements (36-39) which couple together the connecting rods (32-34) and the cranks (50), and a number of lever assemblies (40, 41) having a bearing ring (45, 46) interfaced thereto. The bearing rings (45, 46) provide a supportive interface between two linking elements (36-39) but permit the linking elements (36-39) to rotate independently from one another. The lever assemblies (40, 41) also provide an interface for the connecting rods (32-34) and linking elements (36-39). The present invention also includes a method of operation of the circuit breaker through the independent pole operation linkage.

公开(公告)号：EP0671009A1

公开(公告)日：1995-09-13

申请号：EP92925121.0

申请日：1992-11-05

Applicant: ABB Power T&D Company Inc.

Inventor： MUNDAY, Mark, L. ,  HEMMINGER, Rodney, C.

IPC: G01R13 ,  G01R21 ,  G01R22 ,  G06Q30 ,  H02J13

CPC classification number: G06Q30/04 ,  G01R21/133 ,  H02J13/0055 ,  Y04S50/12

Abstract: The meter includes a first processor (14) for determining electrical energy from voltage (12A, 12B, 12C) and current signals (18A, 18B, 18C) and for generating an energy signal (42, 44, 46, 48) representative of the electrical energy determination and a second processor (16) for receiving the energy signal and for generating an indication signal representative of said energy signal. An option connector (38) is connected to the first and second processors (14, 16), whereby the energy signal is provided to the option connector (38) and a communication connection (40) is provided between the option connector (38) and the second processor (16). It is also preferred to provide the option connector (38) with certain operation signals such as a power fail signal, a master reset signal, an end of demand signal, a KYZ signal, and the potential to communicate with various components of the meter, such as serial data communication, communication signals transmitted and received through an optical port and display signals. It is also preferred for the first processor (14) to include a comparator, connected to receive a precision voltage (22) and a reference voltage (28), wherein a comparator signal is generated whenever the reference voltage exceeds the precision voltage.

公开(公告)号：EP0280382A3

公开(公告)日：1989-08-23

申请号：EP88200372.6

申请日：1988-02-29

Applicant: ABB Power T&D Company Inc.

Inventor： Sweezy, George A.

IPC: H02M7/757 ,  H02H3/52 ,  H02J3/36 ,  H02H7/125

CPC classification number: H02M1/38 ,  H02J3/36 ,  H02M7/7575 ,  Y02E60/60

Abstract: A control for an inverter operable for converting direct voltage and current to alternating voltage and current. The inverter includes a plurality of electrical valves each operable to conduct current in a single direction upon the application of a positive voltage in the forward direction and the receipt of a trigger pulse. The control provides successive trigger pulses for commutating the current between successive valves at predetermined electrical firing angles and includes a voltage-time area calculating cir­cuit for calculating the maximum permissible firing angle which will permit successful commutation. An inverter commutation failure prevention circuit is coupled to the alternating current network for detecting abnormal voltage conditions and for producting a control signal functionally related to any deviation in the alternating voltage from the expected voltage condition. The control is responsive to the control signal for reducing the electrical angles of the trigger pulses provided to the valves.

公开(公告)号：EP0950249B1

公开(公告)日：2003-06-25

申请号：EP98902772.7

申请日：1998-01-05

Applicant: ABB POWER T & D COMPANY INC.

Inventor： OOMMEN, Thottathil, V. ,  CLAIBORNE, C., Clair

IPC: H01B3/20

CPC classification number: C10M169/04 ,  C10M2203/1006 ,  C10M2207/026 ,  C10M2207/08 ,  C10M2207/2805 ,  C10M2207/2835 ,  C10M2207/401 ,  C10N2220/026 ,  C10N2230/06 ,  C10N2240/20 ,  C10N2240/201 ,  C10N2240/202 ,  H01B3/20

Abstract: high oleic acid triglyceride compositions that comprise fatty acid components of at least 75 % oleic acid, less than 10 % diunsaturated fatty acid component; less than 3 % triunsaturated fatty acid component; and less than 8 % saturated fatty acid component; and having the properties of a dielectric strength of at least 35 KV/100 mil gap, a dissipation factor of less than 0.05 % at 25 °C, acidity of less than 0.03 mg KOH/g, electrical conductivity of less than 1 pS/m at 25 °C, a flash point of at least 250 °C and a pour point of at least -15 °C are disclosed. Electrical insulation fluids comprising the triglyceride composition are disclosed. Electrical insulation fluids that comprise the triglyceride composition and a combination of additives are disclosed. Electrical apparatuses comprising the electrical insulation fluids and the use of electrical insulation fluids to provide insulation in electrical apparatuses are disclosed. A process for preparing the high oleic acid triglyceride composition is disclosed.

公开(公告)号：EP1216140A1

公开(公告)日：2002-06-26

申请号：EP00992055.4

申请日：2000-08-31

Applicant: ABB POWER T & D COMPANY INC.

Inventor： LANOUE, Thomas, J. ,  LAMBERT, Wayne ,  SARVER, Charles

IPC: B29C70/70 ,  B29C70/86

CPC classification number: B29C70/70 ,  B29C33/0011 ,  B29L2031/3061 ,  H01F41/098 ,  H01F41/127

Abstract: A method of manufacturing a tranformer coil encapsulated in casting resin utilizing a disposable casting mold where the disposable mold acts both as a winding mandrel and as an inner mold shell (12) for resin encapsulation. The disposable casting mold may be oval shaped or circular shaped depending upon the desired shape of the coils to be encapsulated. The inner (12) and outer (24) mold shells are made from thin sheet metal and thus may be adjusted for the manufacture of a wide variety of sizes of oval shaped or circular shaped epoxy encapsulated coils. The inner mold (12) has flanges (12a) which may be secured mechanically. The ends of theinner mold support bars (18) are connected to spacer bars (20) bybolts. The outer mold (24) is of a one piece construction with an integrated dome and tap area (26). A pre-pregnated glass net (32) may be installed over the finished coil winding to provide anouter layer of glass net which may be applied radially.

公开(公告)号：EP1200925A1

公开(公告)日：2002-05-02

申请号：EP99973141.7

申请日：1999-10-19

Applicant: ABB POWER T & D COMPANY INC.

Inventor： HEMMINGER, Rodney, C. ,  HOLDSCLAW, Scott, T. ,  HUBBARD, Vick, A.

IPC: G06F19/00 ,  G01R19/00

CPC classification number: G01R21/133 ,  G01R23/16

Abstract: A system and method for improving the ability of an electronic meter (14) to make measurements on signals to determine content of different frequencies, and harmonics of the fundamental frequency, of AC signals (voltages and currents). The line frequency is determined and compensated for prior to performing frequency-dependent parameter measurements or determining frequency-dependent parameters.

公开(公告)号：EP1114425A1

公开(公告)日：2001-07-11

申请号：EP99939035.4

申请日：1999-08-06

Applicant: ABB POWER T & D COMPANY INC.

Inventor： OOMMEN, Thottathl, V. ,  CLAIBORNE, C., Clair

IPC: H01B3/20

CPC classification number: H01B3/20

Abstract: High oleic acid triglyceride compositions that comprise fatty acid components of at least 75 % oleic acid, less than 10 % diunsaturated fatty acid component; less than 3 % triunsaturated fatty acid component; and less than 8 % saturated fatty acid component; and having the properties of a dielectric strength of at least 35 KV/100 mil gap, a dissipation factor of less than 0.05 % at 25 °C, acidity of less than 0.03 mg KOH/g, electrical conductivity of less than 1 pS/m at 25 °C, a flash point of at least 250 °C and a pour point of at least -15 °C are disclosed. Electrical insulation fluids comprising the triglyceride composition are disclosed. Electrical insulation fluids that comprise the triglyceride composition and a combination of additives are disclosed. Electrical apparatuses comprising the electrical insulation fluids and the use of electrical insulation fluids to provide insulation in electrical apparatuses are disclosed. A process for preparing the high oleic acid triglyceride composition is disclosed.