Abstract: An alignment tool includes a mounting flange, a support leg fixedly coupled to the mounting flange and cooperating with the mounting flange to define a partial annular ring that extends in an arc between 190 degrees and 350 degrees, and a second quantity of jack bolt pairs movably coupled to the support leg, each jack bolt pair arranged to engage one of the first quantity of seal segments. A third quantity of mounting fasteners is positioned to fixedly attach the mounting flange to the inner casing.

Abstract: A carbon brush (11) for use in a sliding contact in a dynamoelectric machine, comprises a brush body (111), formed of an electrically conducting low friction material, the brush body having a contact surface for providing said sliding contact, a brush sensor (113), for detecting at least one parameter relating to the carbon brush, first and second electrical connections (41, 42), which are spaced apart along a current path through said carbon brush (11), such that a voltage drop is present between said first and second electrical connections (41, 42) when a current is conducted through said carbon brush (11), and an energy harvesting device (4) configured to act as a power source, by utilizing the current and the voltage drop. for providing electrical energy for driving said brush sensor (113). The energy harvesting device (4) is electrically connected to said first and second electrical connections (41, 42).

Abstract: A method for protecting coalescer elements is provided. The method comprises: providing a device comprising a vessel that contains at least two coalescer elements each including an electrode; feeding a mixture into the vessel; supplying AC voltage to the electrodes; and time-resolved determining an electrical impedance of at least one of the electrodes and determining whether the electrical impedance has been changed within a predetermined time period of at most 1 second by more than a predetermined threshold of at least 0.25%. If so, a voltage supplied to the at least one of the electrodes is quenched or reduced to at most 70% of the AC voltage supplied to the electrode at a time of determining a change of the electrical impedance until at least one of: the change of the electrical impedance lies within a first predetermined range and the electrical impedance lies within a second predetermined range.

Abstract: An alignment tool includes a mounting flange, a support leg fixedly coupled to the mounting flange and cooperating with the mounting flange to define a partial annular ring that extends in an arc between 190 degrees and 350 degrees, and a second quantity of jack bolt pairs movably coupled to the support leg, each jack bolt pair arranged to engage one of the first quantity of seal segments. A third quantity of mounting fasteners is positioned to fixedly attach the mounting flange to the inner casing.

Abstract: An alignment tool includes a mounting flange, a support leg fixedly coupled to the mounting flange and cooperating with the mounting flange to define a partial annular ring that extends in an arc between 190 degrees and 350 degrees, and a second quantity of jack bolt pairs movably coupled to the support leg, each jack bolt pair arranged to engage one of the first quantity of seal segments. A third quantity of mounting fasteners is positioned to fixedly attach the mounting flange to the inner casing.

Abstract: An alignment tool includes a mounting flange, a support leg fixedly coupled to the mounting flange and cooperating with the mounting flange to define a partial annular ring that extends in an arc between 190 degrees and 350 degrees, and a second quantity of jack bolt pairs movably coupled to the support leg, each jack bolt pair arranged to engage one of the first quantity of seal segments. A third quantity of mounting fasteners is positioned to fixedly attach the mounting flange to the inner casing.

Abstract: A graphite material device (1), wherein the graphite material device is provided, internally and/or externally, with at least one conductive pattern (2) and/or at least one sensor (2) and wherein the graphite material device is used as any one of a carbon brush, a brake disc, a bushing and a bearing.

Abstract: A brush holder for electrical machines has a clamping piece with a first mounting part and a second clamping part, which when assembled define a clamping hole to be assembled around a spindle; and two brush holder arms pivotally mounted on the first mounting part of said clamping piece, and adapted to receive and retain a brush. The arms have an upper side which is opposite to a lower side facing a slip ring; at least one biasing spring to act upon said brush holder arms in such a way that said brush holder arms move pivotally towards and presses said brushes against the slip ring. A conductive wire connects the brush to the clamping piece. A brush holder arm locking mechanism is adapted to be inserted into a slot in the second clamping part. A brush locking pin retains the brush in said brush holder arm and provided in corresponding bores arranged in the brush holder arm and the brush.

Abstract: A graphite material device (1), wherein the graphite material device is provided, internally and/or externally, with at least one conductive pattern (2) and/or at least one sensor (2) and wherein the graphite material device is used as any one of a carbon brush, a brake disc, a bushing and a bearing.

Abstract: The present inventive concept relates to a brush holder for electrical machines comprising a clamping piece comprising a first mounting part and a second clamping part, which when assembled define a clamping hole, which is adapted to be assembled around a spindle; and two brush holder arms, wherein a proximal end of said arm is pivotally mounted on the first mounting part of said clamping piece, and wherein a distal end of said arm is adapted to receive and retain a brush, and wherein said arms have an upper side which is opposite to a lower side facing a slip ring; at least one biasing spring which spring is adapted to act upon said brush holder arms in such a way that said brush holder arms move pivotally towards a slip ring, and when in use presses said brushes against the slip ring; at least one conductive wire connecting the brush to the clamping piece; and wherein a brush holder arm locking mechanism is arranged at or along the upper side of each respective brush holder arm, that said locking mechanism

Abstract: A contact brush holder is disclosed. According to an aspect, a brush holder is provided for receiving at least two contact brushes and holding the brushes in contact with a slip ring in an electrical power device. The brush holder comprises a holder body adapted for receiving said brushes. The brushes are arranged on opposite sides of a plane in which a central axis of the brush holder is located and in which an axis of rotation of the electric apparatus is situated. A biasing device is provided for biasing the holder body towards the slip ring, thus biasing the at least two contact brushes towards the slip ring.

Abstract: An arrangement for changing current return path in a bipole direct current power transmission system includes a converter station having an active and a passive converter connected in series between an active and a passive pole line via a first neutral bus, a metallic return transfer switch in an electrode line, a ground return transfer switch in a current redirecting path between the passive pole line and the neutral bus and a control unit which in case of change to the passive pole line for providing a return current path is configured to, upon control of power related to the active converter from steady-state to zero, close the ground return transfer switch and thereafter open the metallic return transfer switch, whereupon power related to the active converter may be controlled back to steady state.

Abstract: An arrangement for changing current return path in a bipole direct current power transmission system includes a converter station having an active and a passive converter connected in series between an active and a passive pole line via a first neutral bus, a metallic return transfer switch in an electrode line, a ground return transfer switch in a current redirecting path between the passive pole line and the neutral bus and a control unit which in case of change to the passive pole line for providing a return current path is configured to, upon control of power related to the active converter from steady-state to zero, close the ground return transfer switch and thereafter open the metallic return transfer switch, whereupon power related to the active converter may be controlled back to steady state.

Abstract: The invention concerns an electrostatic coalescing device that includes a vessel or a pipe through which a mixture of fluids flows. At least one metal electrode plate and transformer are arranged inside the pipe/vessel. The electrode plate and transformer are fully enclosed by insulation, and the transformer is energized from an external alternating low voltage source/power supply located outside the vessel/pipe. The transformer includes a first end of a high voltage winding connected electrically to the metal plate within the insulation.

Abstract: A brush holder (1) for receiving at least two contact brushes (2, 4) and holding said brushes in contact with a slip ring in an electrical power device, the brush holder comprising a holder body (10) adapted for receiving said brushes (2, 4), said brushes (2, 4) being arranged on opposite sides of a plane in which a central axis (C-C) of the brush holder (1) is located and in which an axis of rotation of the electric apparatus is situated. A biasing device (11) for biasing the holder body (10) towards the slip ring, thus biasing the at least two contact brushes (2,4) towards the slip ring.

Abstract: A coalescing apparatus including a casing having an inner chamber for accommodating insulating fluid. At least one tube of electrically insulating material extends through the casing and the chamber. Each tube forms a flow channel for emulsion to be treated. A set of electrodes is mounted in the chamber. The tube is allotted at least one pair of electrodes of the set. A voltage set is configured to apply mutually different electric potentials to the electrodes of each electrode pair so as to form an electric field between them and thereby an electric field inside the respective tube. A heater is configured to heat the insulating fluid so as to allow the insulating fluid to transfer heat to emulsion flowing through at least one tube and thereby raise the temperature of the emulsion. An emulsion treatment system includes a coalescing apparatus. A coalescing method.

Abstract: A vessel having an implement located in a fluid receiving space inside the vessel. The vessel includes an enclosure for enclosing a closed space around the implement. An actuator actuates the enclosure to and fro between an open position, in which the enclosure does not enclose a closed space around the implement, and a closed position, in which the enclosure forms a fluid tight or at least essentially fluid tight casing that encloses a closed space around the implement so as to prevent fluid in the fluid receiving space outside the closed space from flowing into the closed space. A method for cleaning and/or calibrating an implement located in a fluid receiving space inside such a vessel and a method for removing an implement from or inserting an implement into a fluid receiving space inside a vessel.

Abstract: The invention concerns an electrostatic coalescing device that includes a vessel or a pipe through which a mixture of fluids flows. At least one metal electrode plate and transformer are arranged inside the pipe/vessel. The electrode plate and transformer are fully enclosed by insulation, and the transformer is energized from an external alternating low voltage source/power supply located outside the vessel/pipe. The transformer includes a first end of a high voltage winding connected electrically to the metal plate within the insulation.

Abstract: A device for coalescing an emulsion component in an emulsion including a mixture of at least two different fluid components by an electric field applied to the emulsion. The device includes at least one electrostatic coalescer element. The coalescer element includes a tubular channel made of an electrically insulating material, a first electrode mounted on one side of the tubular channel, and a second electrode mounted on the other side of the tubular channel, a first end wall including a first opening adapted to receive a first end of the tubular channel, and a second end wall including a corresponding second opening adapted to receive a second end of the tubular channel. The walls together with the tubular channel isolate the emulsion from the electrodes.

Abstract: A coalescing apparatus including a casing having an inner chamber for accommodating insulating fluid. At least one tube of electrically insulating material extends through the casing and the chamber. Each tube forms a flow channel for emulsion to be treated. A set of electrodes is mounted in the chamber. The tube is allotted at least one pair of electrodes of the set. A voltage set is configured to apply mutually different electric potentials to the electrodes of each electrode pair so as to form an electric field between them and thereby an electric field inside the respective tube. A heater is configured to heat the insulating fluid so as to allow the insulating fluid to transfer heat to emulsion flowing through at least one tube and thereby raise the temperature of the emulsion. An emulsion treatment system comprising such includes a coalescing apparatus. A coalescing method.