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1. 发明申请

US20220364448A1 MODULAR SWITCHGEAR SYSTEM AND POWER DISTRIBUTION FOR ELECTRIC OILFIELD EQUIPMENT 有权
公开(公告)号：US20220364448A1
公开(公告)日：2022-11-17
申请号：US17560651
申请日：2021-12-23
申请人： U.S. Well Services, LLC
发明人： Jared Oehring , Brandon N. Hinderliter , Lon Robinson
IPC分类号： E21B43/26 , F04B1/00 , F04B15/02 , F04B17/03 , H02B13/00 , H01F27/02 , H02G3/04 , H02B1/20 , H01F38/14 , F04B17/06 , F02B63/04 , F02B63/06
摘要： A hydraulic fracturing system for fracturing a subterranean formation includes a support structure that includes an electric powered pump, arranged in a first area, the electric powered pump powered by at least one electric motor, also arranged in the first area. The system further includes a variable frequency drive (VFD), arranged in a second area proximate the first area, connected to the at least one electric motor to control the speed of the at least one electric motor. The system includes a transformer, arranged in a third area proximate the second area. The system also includes a cooling system, arranged in a fourth area proximate the third area, the cooling system providing a cooling fluid to the VFD via one or more headers.

2. 发明申请

US20220344913A1 MAINTENANCE GROUNDING DEVICE IN MOTOR CONTROL CENTER WITH INTEGRATED INTERLOCK SYSTEM 有权
公开(公告)号：US20220344913A1
公开(公告)日：2022-10-27
申请号：US17237744
申请日：2021-04-22
申请人： Rockwell Automation Technologies, Inc.
发明人： Navinchandra Bhatt , Paul van Heeswyk , John Kay , Ashwin Baliga B
IPC分类号： H02B13/00 , H02B1/30 , H02B11/04 , H02B11/133
摘要： A motor control center includes an enclosure comprising an isolation switch, a main contactor device, and a ground switch device. The isolation switch is selectively manually operable between a connected state and a disconnected state. In the connected state the isolation switch is adapted to conduct electrical power from an associated power source to the main contactor device and wherein the isolation switch in the disconnected state interrupts conduction of electrical power from the associated power source to the main contactor device. The main contactor device is selectively operable between a conductive state and a non-conductive state, wherein the main contactor device is adapted to electrically connect the isolation switch to the ground switch device and to an associated electrical load when the main contactor device is in its conductive state and wherein the main contactor device disconnects said isolation switch from the ground switch device and the associated electrical load when the main contactor device is in its non-conductive state. The ground switch device is manually operable from an open, ungrounded state in which the main contactor device is electrically disconnected from a ground path to a closed, grounded state in which the main contactor device is electrically connected to the ground path. The motor control center further includes a first interlock device operably connected between the isolation switch and the ground switch device, wherein the first interlock device prevents movement of the isolation switch from the disconnected state to the connected state when the ground switch device is in the grounded state.

3. 发明申请

US20220224085A1 Two-Step Interlock for Modules in a Motor Control Center 有权
公开(公告)号：US20220224085A1
公开(公告)日：2022-07-14
申请号：US17147945
申请日：2021-01-13
申请人： Rockwell Automation Technologies, Inc.
发明人： Damian Najdek , Karol Knoll
IPC分类号： H02B1/48 , H02B13/00 , H01R33/97 , H01R13/629
摘要： An apparatus for interlocking the connection handle of a module for a motor control center (MCC) engages a locking plate to prevent inadvertent motion of the connection handle. When the apparatus is not pressed, it allows the locking plate to fully engage the connection handle, preventing the connection handle from changing position. When the apparatus is in a first angular orientation, it may only be pressed into the module for a first depth. At the first depth, the apparatus engages the locking plate to allow the connection handle to transition between an off position and a test position. When the apparatus is rotated to a second angular orientation, it may be pressed into the module for a second depth. At the second depth, the apparatus causes the locking plate to disengage the connection handle, allowing the connection handle to be moved between any desired position.

4. 发明授权

US11342140B2 Three-position disconnector switch 有权
公开(公告)号：US11342140B2
公开(公告)日：2022-05-24
申请号：US17110332
申请日：2020-12-03
申请人： ABB Schweiz AG
发明人： Dietmar Gentsch , Radek Javora
IPC分类号： H01H9/00 , H01H31/00 , H01H33/02 , H01H33/42 , H02B13/00
摘要： A three-position disconnector switch includes: an earthing contact; a power out contact; a power in contact; a first piston; and a second piston. In a connected switch position the first piston makes an electrical connection with the power out contact and the second piston makes an electrical connection with the power out contact and the power in contact. In a disconnected switch position the first piston makes an electrical connection with the power out contact and the second piston makes an electrical connection with the power out contact. In an earthed switch position the first piston makes an electrical connection with the earthing contact and with the power out contact and the second piston makes an electrical connection with the power out contact.

5. 发明授权

US11265692B2 Circuit-breaker and mobile device 有权
公开(公告)号：US11265692B2
公开(公告)日：2022-03-01
申请号：US17015651
申请日：2020-09-09
申请人： Siemens Aktiengesellschaft
发明人： Gerd Mueller
IPC分类号： H04W4/50 , H02B13/00 , H01H71/12 , H04W4/80 , H02B1/24 , H04W84/12
摘要： A circuit breaker is for protecting a low-voltage circuit when current or current-time limits are exceeded in the low-voltage circuit. The circuit breaker includes an electronic trip unit which initiates an interruption or reduction of the current flow in the low-voltage circuit when first current or current-time limits are exceeded, and second current or current-time limits stored in the electronic trip unit, which are characterized by lower current limits or lower current-time limits, the second limits being activatable by an initiated switchover. A communication unit connected to the electronic trip unit is provided, which enables wireless communication, and the circuit breaker is designed such that when a wireless communication signal is received that exceeds a field strength value, the second limits are activated.

6. 发明申请

US20220029391A1 COMMON BUS SWITCHGEAR FOR MOBILE HYBRID MICRO-GRIDS 有权
公开(公告)号：US20220029391A1
公开(公告)日：2022-01-27
申请号：US17385441
申请日：2021-07-26
申请人： VOLTAGRID LLC
发明人： Nathan Ough
IPC分类号： H02B1/04 , H02B13/00
摘要： A microgrid system comprising a switchgear trailer comprising a plurality of breakers configured to support generators; at least one breaker configured to support a utility source; at least one breaker configured to output power; wherein the breakers are in a parallel arrangement; a plurality of interchangeable connectors; and a common bus.

7. 发明申请

US20210321523A1 SEALING FOR AN INTERMITTENT AND PARTIAL ROTATING AND TRANSLATING SHAFT 有权
公开(公告)号：US20210321523A1
公开(公告)日：2021-10-14
申请号：US17227394
申请日：2021-04-12
申请人： Eaton Intelligent Power Limited
发明人： Apurv Khandelwal , Nikhil Tilakpure , Vijay Kumar , Marcel Berend Paul van Dijk , Anand Sattappa Chiman , Madhura Damodar Aradhye
IPC分类号： H05K5/06 , H02B13/00 , H02B1/26
摘要： A gas insulated switchgear includes: a gas-tight housing; at least one shaft extending through an opening in the gas-tight housing, which shaft is partially rotatable and/or translatable; a sealing means arranged in the opening for sealing the shaft relative to the gas-tight housing, the sealing means including a sealing bellows having a first mounting rim on one axial end, a second mounting rim on an other axial end, and a bellow body in between the first and second mounting rims; and a mounting ring mounted coaxially to the shaft. The sealing bellows is arranged around the shaft, with the first mounting rim to the housing and with the second mounting rim to the mounting ring.

8. 发明申请

US20210098974A1 CREATION OF AN ELECTRICAL CONNECTION BETWEEN COMPONENTS AND A CONTACTING PLATE 有权
公开(公告)号：US20210098974A1
公开(公告)日：2021-04-01
申请号：US17050178
申请日：2019-04-12
申请人： Siemens Aktiengesellschaft
发明人： Dirk POEHLER , Klaus WILKE
IPC分类号： H02B13/00 , H05K7/20
摘要： A contacting plate is for creating an electrical connection to at least one component. The at least one component has a housing back, which is opposite the contacting plate. A method is for creating a contacting plate and the specification of options for electrical contacting between a component and contacting plate. An electrical contact and a mechanical fastening are formed between the contacting plate and the housing back of the at least one component.

9. 发明授权

US10855062B2 Cabinet with pressure relief means 有权
公开(公告)号：US10855062B2
公开(公告)日：2020-12-01
申请号：US16340074
申请日：2017-09-27
申请人： VESTAS WIND SYSTEMS A/S
发明人： Kenneth G. Hansen , Hans Christian Bisgaard-Clausen
IPC分类号： H02B1/28 , H02B1/56 , H02B13/00 , H02B13/025
摘要： A cabinet comprising an outer wall which encapsulates an internal space comprising electronic components, the outer wall having a rupture line forming a release wall portion which by rupturing of the rupture line in response to an increased pressure in the internal space can be released and thereby define an opening forming arc-vent for the internal space. To protect against penetration of objects of a predetermined size into the electronic components, the cabinet further comprises a ventilation-open inner lining arranged in the internal space to cover the opening. If arcing should occur, the increased pressure may rupture the line and the opening will allow venting. In this situation, the inner lining prevents against penetration.

10. 发明授权

US10673210B2 Isolation and exhaust system for an electrical enclosure 审中-公开
公开(公告)号：US10673210B2
公开(公告)日：2020-06-02
申请号：US16400628
申请日：2019-05-01
申请人： Rockwell Automation Technologies, Inc.
发明人： Troy M. Bellows , Piotr Badura , Daniel Jastrzebski , Maciej Lewandowski , Artur Wiertek , Pawel Kokula , Slawomir Styczen
IPC分类号： H05K7/20 , H02B1/56 , H02B13/00 , H02B1/28 , H05K5/00 , H05K5/02 , H02B1/30 , H02B13/025
摘要： An electrical enclosure, such as a Motor Control Centers (MCC), can include a ventilation system providing airflow while protecting from both ingress of solid objects as small as 1.0 millimeter and egress of gasses from an arc flash by providing a protective mesh with holes having a dimension of less than 1 millimeter, a bracket coupled to the mesh for providing a rigid support, and a flap configured to seal against the bracket and block the mesh in response to a pressure wave produced by an arc flash. The flap, normally open for airflow, can close in response to the pressure wave, by bending at a perforation line to move the flap toward the mesh. The electrical enclosure can also include a normally closed exhaust system. The exhaust system can be configured to open in response to the pressure wave to allow the gasses to escape.

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