Patents Assigned to ABB Oy
  • Electrical cabinet
    Patent number: 8564958
    Abstract: The disclosure relates to an electrical cabinet for receiving and enclosing an electrical apparatus such that the electrical apparatus can be isolated from surroundings by the electrical cabinet. To address water condensing inside the electrical cabinet, a roof construction of the electrical cabinet includes at least a first capillary part located above the electrical apparatus, and the first capillary part includes capillary grooves for recovering liquid condensing on the first capillary part.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: October 22, 2013
    Assignee: ABB Oy
    Inventor: Aaro Pallasmaa
  • INVERTER ASSEMBLY AND SOLAR POWER PLANT COMPRISING THE SAME
    Publication number: 20130264876
    Abstract: An inverter assembly having a DC circuit, inverter, and controller (CTRL) configured to control the inverter, the inverter being, for example, a multilevel inverter having a first half bridge (HB1) and a second half bridge (HB2). The controller (CTRL) can be adapted to provide a first operating state in which the controller (CTRL) operates the inverter as a full-bridge inverter. The controller (CTRL) is further adapted to provide at least one further operating state in which the controller (CTRL) operates the inverter as a half-bridge inverter, the controller (CTRL) being adapted to select an operating state based on predetermined conditions.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 10, 2013
    Applicant: ABB Oy
    Inventor: Mikko Paakkinen
  • ADD-ON BOOST CONVERTER FOR A SOLAR ENERGY SYSTEM
    Publication number: 20130257405
    Abstract: Exemplary embodiments are directed to a boost converter module for a solar energy system. The boost converter module includes input poles, output poles, and a boost converter unit connected between the input poles and the output poles. The input poles can be adapted for connection to a photovoltaic device feeding an input direct voltage (DCIN). The boost converter unit can be adapted for converting the input direct voltage (DCIN) into an output voltage (VOUT) that is higher than the input direct voltage (DCIN) and to feed the output voltage (VOUT) into the output poles. The module also includes a maximum power point tracking (MPPT) unit, a base, and a lid, and input connection means and output connection means on an inner surface of the base. The lid being adapted for connecting at least one wire to the input poles and the output poles.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 3, 2013
    Applicant: ABB Oy
    Inventor: Jani KANGAS
  • ELECTRIC APPARATUS
    Publication number: 20130258598
    Abstract: The disclosure relates to an electric apparatus including an electric device which, during use, generates heat, and a housing enclosing the electric device from the surrounding environment. In order to avoid problems caused by water, the electric apparatus including a receptacle for containing a desiccant. The receptacle has an opening allowing gas to flow between an interior of the receptacle and an interior of the housing in order for the desiccant to come into contact with moisture in the housing, and the receptacle is thermally connected to the electric device for transferring heat from the electric device to the desiccant for removing moisture from the desiccant.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 3, 2013
    Applicant: ABB Oy
    Inventors: Dan Millner, Juha Tuomola, Juha Hamari
  • Method and arrangement for controlling a pumping station
    Patent number: 8545189
    Abstract: A method and an arrangement for controlling a pump station includes measurement of the surface level of a liquid (465) by means of a sensor (452) and controlling the electric drive (401, 420, 430) of the pump (440) to a predetermined speed of rotation when a specific surface level value has been reached. This predetermined rotation speed value is preferably the rotation speed at which the ratio of the flow rate to the consumed power, i.e. the efficiency, is optimal. The measurement of the surface level and the related data processing for control of the pump are performed in a frequency converter (420) in conjunction with the control.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: October 1, 2013
    Assignee: ABB Oy
    Inventors: Srikanth Venkatachari, Mikael Holmberg
  • HEALTH MONITORING METHOD AND SYSTEM FOR DRIVES
    Publication number: 20130253850
    Abstract: In an exemplary method for condition monitoring of electric and mechanical drives, measurement data in a condition monitoring system of electric drives is collected at least from one electric drive. The measurement data is pre-treated, a frequency spectrum is created from the pre-treated measurement data with the Fast Fourier Transform transformation, and a detected vibration frequency and vibration amplitude are recorded from the frequency spectrum. The detected vibration frequency and vibration amplitude is compared to at least one detected vibration frequency and vibration amplitude successive in time. In the comparison, detrimental changes in vibration frequency and vibration amplitude are defined, and the detrimental changes are indicated.
    Type: Application
    Filed: September 19, 2012
    Publication date: September 26, 2013
    Applicant: ABB Oy
    Inventor: Antti Sakari AULANKO
  • ANTICIPATORY FAILURE INDICATOR AND FLUID COOLING ARRANGEMENT
    Publication number: 20130248139
    Abstract: A simple and reliable anticipatory failure indicator is provided for fluid circulation piping, and a fluid cooling arrangement including such an indicator is provided. The indicator includes a first sacrificial member, which is designed to be in direct contact with the fluid within the piping and designed to be weaker than the piping. The indicator includes a chamber, which is isolated from the fluid circulation at least partly by means of the first sacrificial member. The indicator includes an electrical response member, which is arranged into the chamber and which is configured to produce an electrical response upon exposure to the fluid, which has entered to the chamber via a failed sacrificial member. Accordingly, the indicator is configured to provide an electrical response as a direct indication of a failed sacrificial member and as an anticipatory indication of failed piping.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 26, 2013
    Applicant: ABB Oy
    Inventors: Mikael Aulanko, Risto Laurila, Heikki Elomaa
  • ENCLOSURE FOR HOUSING ELECTRICAL EQUIPMENT
    Publication number: 20130217316
    Abstract: An enclosure for housing electrical equipment includes a bottom part, a wall part and a roof part. The bottom part, the wall part and the roof part define an interior chamber for housing the electrical equipment. The wall part includes at least one first air channel connected to the interior chamber, and the enclosure includes at least one fan for circulating air from inside the interior chamber through the at least one first air channel. The bottom part includes at least one second air channel connected to the interior chamber, and the enclosure includes at least one fan for circulating the air from inside the interior chamber through the at least one second air channel.
    Type: Application
    Filed: February 8, 2013
    Publication date: August 22, 2013
    Applicant: ABB OY
    Inventor: ABB OY
  • ELECTRONIC APPARATUS
    Publication number: 20130206370
    Abstract: An electronic apparatus includes an extruded metallic frame with walls which are integrated parts of the extruded metallic frame, at least one extruded flow channel in at least one of the walls for passing a cooling fluid within the respective wall, an inlet arranged outside the electronic apparatus and an outlet arranged outside the electronic apparatus for providing a flow path via the at least one extruded flow channel, and detachable covers which are attached to the walls for sealing off at least one electric component space from an outside of the electronic apparatus.
    Type: Application
    Filed: February 13, 2013
    Publication date: August 15, 2013
    Applicant: ABB Oy
    Inventor: ABB Oy
  • Current measurement in an inverter unit and a frequency converter
    Patent number: 8502524
    Abstract: A method and an arrangement of measuring inverter current, where the inverter is connected to and supplied by a DC intermediate circuit having two or more parallel capacitor branches connected between the positive and negative rail of the DC intermediate circuit, and the capacitance of the capacitor branches being known. The method comprises the steps of measuring the current of one of the parallel capacitor branches, and determining from the measured current the magnitude of the inverter current.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: August 6, 2013
    Assignee: ABB Oy
    Inventors: Ora Veli-Matti Leppänen, Matti Laitinen, Jussi Suortti
  • METHOD AND APPARATUS FOR MONITORING AIR FILTER CONDITION
    Publication number: 20130197826
    Abstract: A method and apparatus are disclosed for monitoring accumulation of dirt on an air filter of a ventilation system including the filter and a fan controlled by a frequency converter. An initial value for an operating parameter is determined. A present operating point is determined based on a characteristic curves, and the mechanical power and rotational speed of the fan. A present value for the operating parameter is determined based on the present operating point, and accumulation of dirt is determined on the air filter based on the initial and present values of the operating parameter.
    Type: Application
    Filed: January 24, 2013
    Publication date: August 1, 2013
    Applicant: ABB Oy
    Inventor: ABB Oy
  • METHOD AND ARRANGEMENT IN CONNECTION WITH PHOTOVOLTAIC POWER GENERATOR COMPOSED OF SERIES-CONNECTED PHOTOVOLTAIC MODULES
    Publication number: 20130197834
    Abstract: A method and an arrangement are provided in connection with a photovoltaic power generator composed of series-connected photovoltaic modules. The method includes determining a maximum power point voltage (UMPP) and a maximum power point current (IMPP). The method also includes determining the ambient temperature (Tamb), calculating an estimated maximum power point voltage (Uest) by using maximum power point current (IMPP) and the determined ambient temperature (Tamb), comparing the estimated maximum power point voltage with the determined maximum power point (UMPP), and determining on the basis of the comparison whether the generator is operating under uniform conditions or in conditions with two maximum power points.
    Type: Application
    Filed: January 10, 2013
    Publication date: August 1, 2013
    Applicant: ABB Oy
    Inventor: ABB Oy
  • Inverter
    Patent number: 8493759
    Abstract: A two-level or multi-level inverter are supplied with a positive auxiliary voltage (Ug+) and a negative auxiliary voltage (Ug?). A bootstrap technique provides a first positive auxiliary voltage and a first negative auxiliary voltage from the supplied potentials. The bootstrap technique provides at least one additional negative auxiliary voltage to a switch driver of at least one semiconductor switch from the first negative auxiliary voltage. At the start up of an inverter, the inverter can perform a startup sequence to provide auxiliary voltages to the respective auxiliary voltage inputs of the switch drivers by turning the power semiconductors sequentially on and off.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: July 23, 2013
    Assignee: ABB Oy
    Inventors: Tero Viitanen, Jussi Suortti, Matti Jussila
  • METHOD FOR DETECTING THE CORRECT ROTATIONAL DIRECTION OF A CENTRIFUGAL APPARATUS, AND A CENTRIFUGAL APPARATUS ASSEMBLY
    Publication number: 20130185002
    Abstract: A method is provided for detecting the correct rotational direction of a centrifugal apparatus. The method includes rotating the centrifugal apparatus in a first direction, acquiring first frequency data relating to the step of rotating the centrifugal apparatus in the first direction, rotating the centrifugal apparatus in a second direction, which is opposite to the first direction, and acquiring second frequency data relating to the step of rotating the centrifugal apparatus in the second direction. The method also includes detecting the correct rotational direction of the centrifugal apparatus based on comparing the first frequency data with the second frequency data, the comparison being carried out with respect to at least one significant frequency range. In each of the at least one significant frequency range, a smaller magnitude is interpreted as an indication of the correct rotational direction.
    Type: Application
    Filed: January 15, 2013
    Publication date: July 18, 2013
    Applicant: ABB Oy
    Inventor: ABB Oy
  • APPARATUS AND METHOD FOR REMOVING DIRT FROM GAS FLOW
    Publication number: 20130174735
    Abstract: The disclosure relates to a gas permeable wall for preventing dirt present in a gas flow from passing through the gas permeable wall with the gas flow. In order to minimize maintenance, the gas permeable wall is a circumferential wall of a cover, and an outlet from the cover is provided for passing on gas having entered the cover through the circumferential gas permeable wall. A support is provided for attaching the cover rotatably to a device, and a drive unit is provided for rotating the cover.
    Type: Application
    Filed: January 9, 2013
    Publication date: July 11, 2013
    Applicant: ABB Oy
    Inventor: ABB Oy
  • Equipment for distribution of electric power
    Patent number: D686158
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 16, 2013
    Assignee: ABB Oy
    Inventors: Juhani Helosvuori, Marjukka Mäkelä, Pertti Seväkivi, Mika Asikainen, Petri Isaksson
  • Switch
    Patent number: D687386
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: August 6, 2013
    Assignee: ABB Oy
    Inventors: Oskari Uitto, Rainer Kolmonen, Aki Suutarinen
  • Equipment for distribution of electric power
    Patent number: D691088
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 8, 2013
    Assignee: ABB Oy
    Inventors: Juhani Helosvuori, Marjukka Makela
  • Equipment for distribution of electric power
    Patent number: D691557
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 15, 2013
    Assignee: Abb Oy
    Inventors: Juhani Helosvuori, Marjukka Mäkelä, Petri Isaksson
  • Equipment for distribution of electric power
    Patent number: D691558
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 15, 2013
    Assignee: ABB Oy
    Inventors: Juhani Helosvuori, Marjukka Mäkelä, Pertti Seväkivi, Mika Asikainen