Abb Schweiz Ag

Abb Research Ltd.

Abb Technology Ag

Singh, Bandeep

Bandeep Singh

Vivek Siddharth

David Raschka

Jaroslaw Wojciech Chorzepa

Steven A Shaw

James Stoupis

Felix Greuter

William E Pauley, Jr

Xavier Kornmann

Nikolaus Zant

Andrej Krivda

Robert C Ballard

Leopold Ritzer

Arun Kumar Kadavelugu

David Coats

Vincent Tilliette

Steve A Shaw

Thomas A Hartmann

Stéphane Schaal

Nirmal Paudel

Stephen Clifford

Faustine Soyeux

Lei Wang

Prateek Puri

Thomas Hartmann

Veronika Schmid

Lars Schmidt

A submersible current sensor for sensing a current in a submerged conductor includes: a split core current transformer constructed to generate an output representative of the current carried by the conductor, the split core having a first core member, a first winding disposed about at least a portion of the first core member; a second core member; and a second winding disposed about at least a portion of the second core member; and a housing, the housing including: a first housing member constructed to house the first core member and the first winding; and a second housing member constructed to house the second core member and the second winding.

Submersible split core current sensor and housing

Devices, systems, and methods for measurement of parameters of electric power transmission lines can improve electric power usage, while wireless circuitry can provide communication from field-located devices. Connection to draw electrical power from the transmission line can be distinct from connection to sense line parameters.

On-line power measurement

Unique systems, methods, techniques and apparatuses of a power line measurement device are disclosed. One exemplary embodiment is a measurement device comprising a measurement device structured to at least partially surround a segment of a power distribution line, the measurement device including a winding portion spaced apart from the segment of the power distribution line structured to receive magnetic flux from the power distribution line and to output data corresponding to a current flowing through the power distribution line; and a magnetic shield spaced apart from the measurement device and positioned radially outward from the winding portion relative to the segment of the power distribution line, the magnetic shield comprising a first section and a second section coupled to the first section at an obtuse angle, the magnetic shield being structured to reduce an amount of external flux from being received with the measurement device.

Flux absorber for power line device

Instrument transformer for power grid conductor includes: a current sensing device having a secondary coil winding through which a power grid primary conductor is capable of extending and connecting to a primary conductor connector, a first low voltage (LV) lead connected to the secondary coil winding and a LV connector, and a first high voltage (HV) lead connected between the primary conductor connector and a HV connector, the voltage sensing device having a core with a primary coil winding, a second HV lead connected between a HV connector and primary coil winding, a grounding conductor connected between the primary coil winding and an output terminal, a second LV lead connected between a LV connector and output terminal, wherein the current and voltage sensing devices are electrically connected via HV and LV connectors, and wherein the current and voltage sensing devices are separable when corresponding HV and LV connectors are disconnected.

Instrument transformer for measuring at least one electricity property in a conductor of a power grid

A three-phase dry distribution transformer adapted for mounting outdoors on a pad or to a utility pole. The distribution transformer includes one or more winding assemblies mounted to a ferromagnetic core. Each winding assembly includes a low voltage winding and a high voltage winding. In each winding assembly, an encasement comprised of an insulating resin encapsulates the low voltage and high voltage windings. The encasement includes a body and a pair of high voltage bushings and a pair of low voltage bushing.

Outdoor dry-type transformer

A protective coating system for application to exposed surfaces of a transformer core prevents corrosion of the core. The protective coating is suitable for use in industrial and marine environments where many factors impact the life of the transformer core. The protective coating comprises at least three coating layers. The first coating layer is an inorganic zinc silicate primer. The second coating layer is a polysiloxane. The third coating layer is a room temperature or high temperature vulcanizing silicone rubber. A silicone rubber sealant may be further applied to outer edge surfaces of the core.

Corrosion-resistant coating system for a dry-type transformer core

Polymer concrete electrical insulation including a hardened epoxy resin composition filled with an electrically non-conductive inorganic filler compositions. The polymer concrete electrical insulation system optionally may contain additives. The epoxy resin composition is based on a cycloaliphatic epoxy resin. The inorganic filler composition can be present within the range of about 76% by weight to about 86% by weight, calculated to the total weight of the polymer concrete electrical insulation system. The inorganic filler composition includes a uniform mixture of (i) an inorganic filler with an average grain size within the range of 1 micron (&#x3bc;m) to 100 micron (&#x3bc;m) [component c(i)], and (ii) an inorganic filler with an average grain size within the range of 0.1 mm (100 micron) to 2 mm [component c(ii)]. The inorganic filler with an average grain size within the range of 1 micron (&#x3bc;m) to 100 micron (&#x3bc;m) [component c(i)] can be present in an amount within the range of 22% to 42%, calculated to the total weight of the polymer concrete electrical insulation system; and (e) the inorganic filler with an average grain size within the range of 0.1 mm to 2 mm [component c(ii)] is present within the range of 41% to 61% by weight, calculated to the total weight of the polymer concrete electrical insulation; and method of producing said electrical insulation.

Polymer concrete electrical insulation

A curable epoxy resin composition including at least an epoxy resin component and a hardener component, and optionally further additives, wherein: (a) the epoxy resin component is an epoxy resin compound or a mixture of such compounds; (b) the hardener component includes (b1) an aliphatic and cycloaliphatic or aromatic polycarbonic acid anhydride; and (b2) a polyether-amine of the general formula (I), HN&#x2014;(CH&#x2014;O)&#x2014;CH&#x2014;NH, wherein n is an integer from 2 to 8; and m is from about 3 to about 100; (c) the polycarbonic acid anhydride [component (b1)] is present in the curable epoxy resin composition in a concentration of 0.60 Mol to 0.93 Mol; and (d) the polyether-amine of the general formula (I) [component (b2)] is present in the curable epoxy resin composition in a concentration of about 0.02 Mol to about 0.1 Mol.

Curable epoxy resin composition

Growing community of inventors

Wytheville, VA, United States of America

Bandeep Singh