A fixing bolt (1) for fixing in a wall (2), wherein the back of the wall (2) forms an inaccessi¬ ble space, for example in a tubular mast (5), and wherein the fixing bolt (1) has a centre axis (12) and a first portion (8), and wherein a locking body (24) is at least rotatably or displaceably connected to the first portion (8) of the fixing bolt (1) as the first portion (8) of the fixing bolt (1) and the locking body (24) are arranged to be inserted into a bore (38) in the wall (2), and wherein the locking body (24) is rotated by means of gravity into an active position, in which the locking body (24) projects diametrically from the fixing bolt (1) on two opposite sides, and wherein the locking body (24), in its active position, is ar- ranged to come into abutment against the inside (36) of the wall (2), and wherein the locking body (24) is at least rotatable or displaceable around a transverse portion (22), and wherein the transverse portion (22) is formed from and is integral with the material of the fixing bolt (1).
F16B 13/08 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate gripping parts moved into their final position in relation to the body of the device without further manual operation
2.
DRONE HAVING A FASTENING DEVICE FOR A ROPE AND METHOD FOR SUSPENDING A ROPE FROM AN OBJECT
A drone having at least one thrust device and being provided with a loop coupled to the drone. The loop is configured for fastening a rope to the drone and is provided with a rope connector for establishing a releasable connection with the rope in operational use of the drone. The loop is configured for guiding the rope connector from a first position under the drone along a predefined path to a second position over the drone i) by rotation of the loop itself or ii) by translation of the rope connector along the loop, or iii) by a combination of said rotation and said translation, wherein the predefined path is configured for ensuring a minimum distance between the rope connector and the least one thrust device of the drone.
H02G 1/02 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables
The invention relates to a line sensor (200) for being mounted to a power line (1a, 1b, 1c). The line sensor (200) comprises: i) a housing (202) for containing line sensor electronics (210); and ii) a voltage-sensing capacitor (240) in connection with the housing (202). The line sensor (200) is characterized by an electric circuit (600) being connected in parallel with the first capacitance (C1) for receiving a harvested voltage (VH) standing over the two capacitor plates (242, 244), the electric circuit (600) being configured for operating in an energy harvesting mode and/or a voltage-sensing mode. The line sensor (200) is further characterized by a slot antenna (250) being integrated in the first, upper, one (242) of the capacitor plates, wherein in the second, lower, one (242) of the capacitor plates an opening (255) is provided for allowing radio-frequency waves generated by the slot antenna to be transmitted through the opening (255). Thereby a single component multi-purpose structure is formed enabling both the energy harvesting mode and the voltage sensing mode as well as wireless communication with other units.
G01R 15/06 - Voltage dividers having reactive components, e.g. capacitive transformer
H02J 50/05 - Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
H01Q 1/44 - ANTENNAS, i.e. RADIO AERIALS - Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna
4.
ROPE ROBOT AND METHOD FOR MOUNTING AN OBJECT TO A POWER LINE
A method is for mounting an object, such as a line sensor, to a power line. The method includes: i) suspending and tensioning at least two ropes between a physical ground and a power line; ii) coupling a rope robot with the at least two ropes in such a way that the rope robot can climb up and down the at least two ropes in operational use; iii) providing an object on the rope robot; iv) making the rope robot climb up to the power line to bring the object close to the power line; v) mounting the object to the power line with the rope robot, and vi) decoupling the rope robot from the object and making the rope robot climb down the at least two ropes. A rope robot is disclosed for carrying out this method.
H02G 1/04 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
B62D 57/024 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members specially adapted for moving on inclined or vertical surfaces
B25J 5/02 - Manipulators mounted on wheels or on carriages travelling along a guideway
5.
DRONE HAVING A FASTENING DEVICE FOR A ROPE AND METHOD FOR SUSPENDING A ROPE FROM AN OBJECT
A drone having at least one thrust device (14) and being provided with a loop (2) coupled to the drone (1). The loop (2) is configured for fastening a rope (3) to the drone (1) and is provided with a rope connector (23) for establishing a releasable connection with the rope (3) in operational use of the drone (1). The loop (2) is configured for guiding the rope connector (23) from a first position (51) under the drone (1) along a predefined path (P) to a second position (59) over the drone (1) i) by rotation of the loop (2) itself or ii) by translation of the rope connector (23) along the loop (2), or iii) by a combination of said rotation and said translation, wherein the predefined path (P) is configured for ensuring a minimum distance (D) between the rope connector (23) and the least one thrust device (14) of the drone (1).
A drone having at least one thrust device (14) and being provided with a loop (2) coupled to the drone (1). The loop (2) is configured for fastening a rope (3) to the drone (1) and is provided with a rope connector (23) for establishing a releasable connection with the rope (3) in operational use of the drone (1). The loop (2) is configured for guiding the rope connector (23) from a first position (51) under the drone (1) along a predefined path (P) to a second position (59) over the drone (1) i) by rotation of the loop (2) itself or ii) by translation of the rope connector (23) along the loop (2), or iii) by a combination of said rotation and said translation, wherein the predefined path (P) is configured for ensuring a minimum distance (D) between the rope connector (23) and the least one thrust device (14) of the drone (1).
B64C 39/02 - Aircraft not otherwise provided for characterised by special use
H02G 1/02 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables
7.
SYSTEM FOR MONITORING A POWER DISTRIBUTION NETWORK AND METHODS OF BUILDING AND PERFORMING OPERATIONS ON SUCH SYSTEM
A system is for monitoring a power distribution network having mast constructions carrying at least one power line. The system has at least two smart modules, each being affixed to a respective mast construction and designed for wireless communication with each other for forming a main wireless communication network along the power line. The system has a sensor system affixed to a respective one of the mast constructions. The sensor system is designed for determining at least one quantity or event of the network and for communicating the quantity or event to a respective smart module, which are designed for communicating information associated with the quantity or event along the network, for being remotely monitored. The smart modules are placed outside the Live working and Vicinity zones in accordance with the EN50110-1 standard for power networks, and at least one sensor system is contained in each smart module itself.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
8.
APPARATUS AND METHOD FOR FASTENING A COMPOSITE POLE TO THE GROUND
The invention relates to a fastening element for fastening a hollow composite pole to the ground at a location where a slit-formed opening is present in the ground, wherein the fastening element has a lower end portion that is configured for being positioned in the slit-formed opening, wherein a conical portion of the composite pole is abutting a conical upper portion of the fastening element.
An apparatus is arranged to control a quantity of binder resin that is carried by a thread, the apparatus comprising at least one first tine row being arranged parallel and displaceably to at least one second tine row, wherein a guide track for the thread is formed transversely to the tine rows and a displacement of at least one tine row the guide track. A method for controlling the quantity of binder resin by using tines is described as well.
B05C 11/04 - Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface; Control of the thickness of a coating with blades
B05C 11/02 - Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface; Control of the thickness of a coating
C03C 25/20 - Contacting the fibres with applicators, e.g. rolls
D06B 3/04 - Passing of textile materials through liquids, gases, or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads, or filaments
10.
ROPE ROBOT AND METHOD FOR MOUNTING AN OBJECT TO A POWER LINE
The invention relates to a method for mounting an object (200), such as a line sensor, to a power line (1a, 1b, 1c). The method comprises: i) suspending and tensioning at least two ropes (10) between a physical ground and a power line (1a, 1b, 1c); ii) coupling a rope robot (100) with the at least two ropes (10) in such a way that the rope robot (100) can climb up and down the at least two ropes (10) in operational use; iii) providing an object (200) on the rope robot (100); iv) making the rope robot (100) climb up to the power line (1a, 1b, 1c) to bring the object (200) close to the power line (1a, 1b, 1c); v) mounting the object (200) to the power line (1a, 1b, 1c) with the rope robot (100), and vi) decoupling the rope robot (100) from the object (200) and making the rope robot (100) climb down the at least two ropes (10). The invention further relates to a rope robot (100) that can carry out this method.
H02G 1/02 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables
B62D 57/024 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members specially adapted for moving on inclined or vertical surfaces
G01R 31/08 - Locating faults in cables, transmission lines, or networks
11.
ROPE ROBOT AND METHOD FOR MOUNTING AN OBJECT TO A POWER LINE
The invention relates to a method for mounting an object (200), such as a line sensor, to a power line (1a, 1b, 1c). The method comprises: i) suspending and tensioning at least two ropes (10) between a physical ground and a power line (1a, 1b, 1c); ii) coupling a rope robot (100) with the at least two ropes (10) in such a way that the rope robot (100) can climb up and down the at least two ropes (10) in operational use; iii) providing an object (200) on the rope robot (100); iv) making the rope robot (100) climb up to the power line (1a, 1b, 1c) to bring the object (200) close to the power line (1a, 1b, 1c); v) mounting the object (200) to the power line (1a, 1b, 1c) with the rope robot (100), and vi) decoupling the rope robot (100) from the object (200) and making the rope robot (100) climb down the at least two ropes (10). The invention further relates to a rope robot (100) that can carry out this method.
H02G 1/02 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables
B62D 57/024 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members specially adapted for moving on inclined or vertical surfaces
G01R 31/08 - Locating faults in cables, transmission lines, or networks
12.
SYSTEM FOR MONITORING A POWER DISTRIBUTION NETWORK AND METHODS OF BUILDING AND PERFORMING OPERATIONS ON SUCH SYSTEM
The invention relates to a system (2) for monitoring a power distribution network (1), wherein the power distribution network (1) comprises a plurality of mast constructions (100, 100-1, 100-2, 100-3) placed on a ground at certain distances (dst) from each other and carrying at least one power line (1a, 1b, 1c) mounted to said mast constructions (100, 100-1, 100-2, 100-3). The system (2) comprises at least two smart modules (200), each smart module (200) being affixed directly to a respective one of the plurality of mast constructions (100, 100-1, 100-2, 100-3), wherein the at least two smart modules (200) are designed for wireless communication with each other in accordance with a wireless communication protocol for forming a main wireless communication network along the power line (1a, 1b, 1c). The system (2) further comprises at least one sensor system (210, 220, 230, 240) affixed directly to a respective one of said mast constructions (100, 100-1, 100-2, 100-3), the at least one sensor system (210, 220, 230, 240) being designed for deter-mining at least one quantity or event of the power distribution network (1) and for communicating said at least one quantity or event to a respective smart module (200). Furthermore, the at least two smart modules (200) are designed for communicating information associated with said at least one quantity or event along the main wireless communication network (NW1) for being remotely monitored. The at least two smart modules are placed outside the Live working and Vicinity zones (ZN) in accordance with the EN50110-1 standard for power networks, and at least one sensor system (210, 220, 230, 240 is contained in each smart module (200) itself.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
13.
SYSTEM FOR MONITORING A POWER DISTRIBUTION NETWORK AND METHODS OF BUILDING AND PERFORMING OPERATIONS ON SUCH SYSTEM
The invention relates to a system (2) for monitoring a power distribution network (1), wherein the power distribution network (1) comprises a plurality of mast constructions (100, 100-1, 100-2, 100-3) placed on a ground at certain distances (dst) from each other and carrying at least one power line (1a, 1b, 1c) mounted to said mast constructions (100, 100-1, 100-2, 100-3). The system (2) comprises at least two smart modules (200), each smart module (200) being affixed directly to a respective one of the plurality of mast constructions (100, 100-1, 100-2, 100-3), wherein the at least two smart modules (200) are designed for wireless communication with each other in accordance with a wireless communication protocol for forming a main wireless communication network along the power line (1a, 1b, 1c). The system (2) further comprises at least one sensor system (210, 220, 230, 240) affixed directly to a respective one of said mast constructions (100, 100-1, 100-2, 100-3), the at least one sensor system (210, 220, 230, 240) being designed for deter-mining at least one quantity or event of the power distribution network (1) and for communicating said at least one quantity or event to a respective smart module (200). Furthermore, the at least two smart modules (200) are designed for communicating information associated with said at least one quantity or event along the main wireless communication network (NW1) for being remotely monitored. The at least two smart modules are placed outside the Live working and Vicinity zones (ZN) in accordance with the EN50110-1 standard for power networks, and at least one sensor system (210, 220, 230, 240 is contained in each smart module (200) itself.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
14.
Method for generating a freeroom for a mast element
A method is for generating a freeroom for a mast element in a ground. The method includes the steps: a) drilling a first annular recess into the ground, the first recess having: a first diameter; and a first depth; b) drilling a second annular recess in the ground, the second recess being arranged to receive the mast element, and the second recess: having a diameter which is smaller than the first diameter; having a second depth which is larger than the first depth; surrounding a first core of the ground; and being surrounded by the first recess; wherein there is, defined between the first recess and the second recess, a second core which can be removed to generate a freeroom.
A system and a method are for positioning a drilling rig arranged to drill in a ground. The system has a positioning jig including at least one coupling portion; a drilling rig including at least two coupling portions; and at least two anchoring elements including an upper coupling portion and a lower coupling portion. The lower coupling portion of the anchoring element is arranged to be releasably fixed to the ground. The upper coupling portion of the anchoring element is arranged to be connected to the coupling portion of the positioning jig and to the coupling portion of the drilling rig, so that the upper coupling portion of the anchoring element can optionally be connected to the positioning jig or the drilling rig.
Apparatus (10) arranged to control a quantity of binder resin that is carried by a thread (99), the apparatus (10) comprising at least one first tine row (111) being arranged parallel and displaceably to at least one second tine row (122), wherein a guide track for the thread (99) is formed transversely to the tine rows (111, 122) and a displacement of at least one tine row (111, 122) changes the guide track. A method for controlling the quantity of binder resin by using tines (101) is described as well.
B05C 3/12 - Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length
C03C 25/20 - Contacting the fibres with applicators, e.g. rolls
Apparatus (10) arranged to control a quantity of binder resin that is carried by a thread (99), the apparatus (10) comprising at least one first tine row (111) being arranged parallel and displaceably to at least one second tine row (122), wherein a guide track for the thread (99) is formed transversely to the tine rows (111, 122) and a displacement of at least one tine row (111, 122) changes the guide track. A method for controlling the quantity of binder resin by using tines (101) is described as well.
B05C 3/12 - Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length
C03C 25/20 - Contacting the fibres with applicators, e.g. rolls
A mast mount (40) arranged to be fixed in the ground (99), the mast mount comprising a tubular mounting portion (42) comprising a wall portion (49) with an outside (43) and an inside (44). The mounting portion (42) is adapted for positioning in the ground (99), and the wall portion (49) includes at least one perforation (45) arranged to let a material (51) flow between the outside (43) and the inside (44) of the wall portion (49).
A foundation (1) and a method for fixing a mast element (20) including a hollow end portion (22) in loose ground 99 is described, wherein the foundation (1) comprises a tubular body (30) positioned in the loose ground (99) and a coupling element (40) positioned inside the tubular body (30) so that an annular space (35) is formed between the coupling element (40) and the tubular body (30), the annular space (35) being arranged to receive a stabilizing material (51), and the coupling element (40) including a coupling portion (41) arranged to be connected to the hollow mast element (20).
A core drill (1) arranged to drill in the ground (99), the core drill (1) comprising a sleeve (2) with a first end portion (22) and a bit ring (3) which is detachably attached in a rotationally rigid manner to the first end portion (22), one of the sleeve (2) and the bit ring (3) having a groove (61) with two converging side faces (62), and the other one of the sleeve (2) and the groove (3) having a protrusion (63) with two complementary side faces (64), and the groove (61) and the protrusion (63) being arranged to engage with each other.
The invention relates to an energy transportation mast (10) for being placed on a ground. The mast (10) comprises: i) a first section (10-1) having a first conicity having a first conicity value (α1), the first section (10-1) being configured to be coupled to the ground or to an adapter module for fixing the mast (10) to the ground, and ii) a second section (10-3) connected to the first section (10-1), the second section (10-3) being configured for carry- ing and guiding electric cables, the second section (10-3) having a second conicity having a second conicity value (α3), the second conicity value (α3) being smaller than the first conicity value (α1).
The invention relates to a method of fixing an energy transportation mast (10) to the ground (100). The method comprises steps of: i) providing the energy transportation mast (10) having a bottom end portion (10b) being hollow and having a conical-shape; ii) forming a cylindrical slit (110) in the ground (100), wherein a width (ws) of the cylindrical slit (110) is larger than a width of sidewalls (10sw) of the bottom end portion (10b) of the mast (10); iii) placing the energy transportation mast (10) with its bottom end (10b) in the cylindrical slit (110), and iv) filling a volume between the sidewalls (10sw) of the mast (10) and an outer circumference (110cf) of the slit (110) with material (99) ) for fixing the mast (10) to the ground (100). In an alternative method the mast is placed on a hollow conical- shaped adaptor module (20) that is directly placed into the slit (110) instead of the mast (10).
A system (1 ) and a method for positioning a drilling rig (2) arranged to drill in a ground (99) are described, the system (1 ) comprising: - a positioning jig (3) including at least one coupling portion (31 ); - a drilling rig (2) including at least two coupling portions (21 ); - at least two anchoring elements (4, 4A, 4B) including an upper coupling portion (41 ) and a lower coupling portion (42), wherein - the lower coupling portion (42) of the anchoring element (4, 4A, 4B) is arranged to be releasably fixed to the ground (99); and - the upper coupling portion (41 ) of the anchoring element (4, 4A, 4B) is arranged to be connected to the coupling portion of the positioning jig and to the coupling portion of the drilling rig, so that the upper coupling portion of the anchoring element can optionally be connected to the positioning jig or the drilling rig.
A method for generating a freeroom (88) for a mast element (77) in a ground (99) is described, the method comprising the steps: a) drilling a first annular recess (10) into the ground (99), the first recess (10) having: - a first diameter (10D); and - a first depth (10L); b) drilling a second annular recess (20) in the ground (99), the second recess (20) being arranged to receive the mast element (77), and the second recess (20): - having a diameter (20D) which is smaller than the first diameter (10D); - having a second depth (20L) which is larger than the first depth (10L); - surrounding a first core (20K1) of the ground (99); and - being surrounded by the first recess (10); wherein there is, defined between the first recess (10) and the second recess (20), a second core (20K2) which can be removed to generate a freeroom (88).
A system (1 ) and a method for positioning a drilling rig (2) arranged to drill in a ground (99) are described, the system (1 ) comprising: - a positioning jig (3) including at least one coupling portion (31 ); - a drilling rig (2) including at least two coupling portions (21 ); - at least two anchoring elements (4, 4A, 4B) including an upper coupling portion (41 ) and a lower coupling portion (42), wherein - the lower coupling portion (42) of the anchoring element (4, 4A, 4B) is arranged to be releasably fixed to the ground (99); and - the upper coupling portion (41 ) of the anchoring element (4, 4A, 4B) is arranged to be connected to the coupling portion of the positioning jig and to the coupling portion of the drilling rig, so that the upper coupling portion of the anchoring element can optionally be connected to the positioning jig or the drilling rig.
A device, a system and a method are for attaching a crossbar to a hollow composite pylon where the crossbar is arranged to carry at least one conductor. The hollow composite pylon, the crossbar and the conductor form components of a pylon structure for the transmission or distribution of power. The device has an adapter, which, in the position of application, is pivotably attached to the crossbar, is slideable at least into or over the, in the position of application, upper end portion of the hollow composite pylon and mainly along the longitudinal axis of the hollow composite pylon during part of the installation phase.
H02G 7/20 - Spatial arrangements or dispositions of lines or cables on poles, posts or towers
F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
27.
METHOD FOR GENERATING A FREEROOM FOR A MAST ELEMENT
A method for generating a freeroom (88) for a mast element (77) in a ground (99) is described, the method comprising the steps: a) drilling a first annular recess (10) into the ground (99), the first recess (10) having: - a first diameter (10D); and - a first depth (10L); b) drilling a second annular recess (20) in the ground (99), the second recess (20) being arranged to receive the mast element (77), and the second recess (20): - having a diameter (20D) which is smaller than the first diameter (10D); - having a second depth (20L) which is larger than the first depth (10L); - surrounding a first core (20K1) of the ground (99); and - being surrounded by the first recess (10); wherein there is, defined between the first recess (10) and the second recess (20), a second core (20K2) which can be removed to generate a freeroom (88).
A pole step (1) for mounting on a tubular mast (2), wherein, during the mounting, an end portion (14) of the pole step (1) is arranged to be inserted into an opening (30) in a mast wall (28), and wherein the step body (4) is then secured to the mast (2) by a locking element (26) on the pole step (1) being moved axially against the mast wall (28). The end portion (14) of the pole step (1) is pro- vided with a lock (22) which, after having been moved at least partially through the opening (30), is arranged to be activated between the locked position and the unlocked position by means of the gravitational force.
E06C 9/04 - Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted in the form of climbing irons or the like
F16B 13/08 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate gripping parts moved into their final position in relation to the body of the device without further manual operation
F16B 35/04 - Screw-bolts; Stay bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
29.
Overvoltage protection circuit incorporating a reset circuit for a power converter
An overvoltage protection circuit is for a power supply including a power converter, the overvoltage protection circuit having a comparator. The overvoltage protection circuit uses the comparator for comparing the power supply voltage with the reference voltage, and for producing a power supply shutdown signal on the shutdown output terminal when the power supply voltage exceeds the maximal power supply voltage, and for latching said power supply shutdown signal on the shutdown output terminal even if the power supply voltage subsequently drops to a level below the maximal power supply voltage. The overvoltage protection circuit has a reset circuit coupled to the first input of the comparator. The reset circuit is configured for pulling the signal level on the first input below said reference value such that the power supply shutdown signal is reset when a reset signal is given to the reset circuit.
H02H 3/02 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection - Details
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 1/36 - Means for starting or stopping converters
H02H 7/125 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for rectifiers for static converters or rectifiers for rectifiers
H02H 3/20 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage
H03K 5/24 - Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
30.
APPARATUS AND METHOD FOR ATTACHING A DRILL BODY TO A SLOT DRILL
A device and a method for attaching a drill body (8) to a tubular slot drill (1) which is arranged to drill in the ground (4), the slot drill (1) being provided, at its lower end portion (10), with at least one drill body (8) detachable from the slot drill (1).
E21B 10/48 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
B23B 51/04 - Tools for drilling machines for trepanning
B23C 5/22 - Securing arrangements for bits or teeth
B28D 1/04 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular saw blades or saw discs
E01C 23/09 - Devices or arrangements for working the finished surface; Devices for repairing the surface of damaged paving for trimming paving edges
A device, a system and a method for attaching a crossbar (8) to a hollow composite pylon (2) where the crossbar (8) is arranged to carry at least one conductor (12), the hollow composite pylon (2), the crossbar (8) and the conductor (12) forming components of a pylon structure (1) for the transmission or distribution of power, and wherein the device comprises an adapter (4), which, in the position of application, is attached to the crossbar (8), is slideable at least into or over the, in the position of application, upper end portion (6) of the hollow composite pylon (2) and mainly along the longitudinal axis (30) of the hollow composite pylon (2) during part of the installation phase.
A device, a system and a method for attaching a crossbar (8) to a hollow composite pylon (2) where the crossbar (8) is arranged to carry at least one conductor (12), the hollow composite pylon (2), the crossbar (8) and the conductor (12) forming components of a pylon structure (1) for the transmission or distribution of power, and wherein the device comprises an adapter (4), which, in the position of application, is attached to the crossbar (8), is slideable at least into or over the, in the position of application, upper end portion (6) of the hollow composite pylon (2) and mainly along the longitudinal axis (30) of the hollow composite pylon (2) during part of the installation phase.
The invention relates to a fastening element (10) for fastening a hollow composite pole (8) to the ground (4) at a location where a slit-formed opening (6) is present in the ground (4), wherein the fastening element (10) has a lower end portion (12) that is configured for being positioned in the slit-formed opening (6), wherein a conical portion of the composite pole (8) is abutting a conical upper portion (18) of the fastening element (10). The invention also relates to a method for fastening a hollow composite pole (8) to the ground (4).
The invention relates to a fastening element (10) for fastening a hollow composite pole (8) to the ground (4) at a location where a slit-formed opening (6) is present in the ground (4), wherein the fastening element (10) has a lower end portion (12) that is configured for being positioned in the slit-formed opening (6), wherein a conical portion of the composite pole (8) is abutting a conical upper portion (18) of the fastening element (10). The invention also relates to a method for fastening a hollow composite pole (8) to the ground (4).
An overvoltage protection circuit for a power supply has a power converter, the overvolt- age protection circuit comprising a comparator. The overvoltage protection circuit is con- figured for using the comparator for comparing the power supply voltage with the refer- ence voltage, and for producing a power supply shutdown signal on the shutdown output terminal when the power supply voltage exceeds the maximal power supply voltage, and for latching said power supply shutdown signal on the shutdown output terminal even if said power supply voltage subsequently drops to a level below the maximal power supply voltage. The overvoltage protection circuit further comprises a reset circuit coupled to the first input of the comparator, the reset circuit being configured for pulling the signal level on the first input below said reference value such that the power supply shutdown signal is reset when a reset signal is given to the reset circuit.
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02H 7/12 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for rectifiers for static converters or rectifiers
36.
OVERVOLTAGE PROTECTION CIRCUIT FOR A POWER CONVERTER
The invention relates to an overvoltage protection circuit (40', 41, 42) for a power supply (100) comprising a power converter (20), the overvoltage protection circuit (40') comprising a comparator (OA2). The overvoltage protection circuit (40', 41, 42) is configured for using the comparator (OA2) for comparing the power supply voltage (VDC) with the reference voltage, and for producing a power supply shutdown signal (S41 s) on the shutdown output terminal (41 s) when the power supply voltage (VDC) exceeds the maximal power supply voltage, and for latching said power supply shutdown signal (S41 s) on the shut down output terminal (41 s) even if said power supply voltage (VDC) subsequently drops to a level below the maximal power supply voltage. The overvoltage protection circuit (40') further comprises a reset circuit (41 rc) coupled to the first input (+) of the comparator (OA2), the reset circuit (41 rc) being configured for pulling the signal level on the first input (+) below said reference value such that the power supply shutdown signal (S41 s) is reset when a reset signal (S41 r) is given to the reset circuit (41 rc).
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02H 7/12 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for rectifiers for static converters or rectifiers
37.
System and method for reducing the probability of detection of a communication and sensor mast
A system and method are for reducing the probability of detection of a Line of Sight type communication and sensor mast. The mast has an upper portion extending upwardly relatively the ground, and a lower portion closer to the ground than the upper portion. The mast at the upper portion is equipped with at least a communication or sensor element. The mast is equipped with an actuator that, based on calculated instructions, is designed to alter the elevation above ground of the mast upper portion so as to achieve an acceptable signal quality with the upper portion of the mast at the lowest possible elevation.
H01Q 3/02 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
H01Q 3/04 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
H04B 10/112 - Line-of-sight transmission over an extended range
The invention relates to a system for protecting a deployable mast (1), having an upper portion (2) extending upwardly relatively the ground (6), and a lower portion (4) closer to the ground (6) than the upper portion (2), where the mast at the upper portion (2) is equipped with a sensor element (12), characterized in that the mast at the upper portion (2) is equipped with a sensor element (12), wherein the mast (1) is equipped with an actuator (8) that, based on calculated instructions derived from mast conditions, is designed to alter the elevation above ground (10) of the mast upper portion (2).
E04H 12/00 - Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
E04H 12/18 - Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
A three band whip antenna has a base where the whip antenna along its whole length or part of its length, has a lowest frequency band antenna element and an intermediate frequency band antenna element, wherein a highest frequency band antenna is included in the whip antenna at a position closer to base than the intermediate frequency band antenna element.
H01Q 21/30 - Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
H01Q 1/08 - Means for collapsing antennas or parts thereof
H01Q 5/314 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
H01Q 21/10 - Collinear arrangements of substantially straight elongated conductive units
A system and method for reducing the probability of detection of a Line of Sight (14) type communication and sensor mast (1), the mast (1) having an upper portion (2) extending upwardly relatively the ground (6), and a lower portion (4) closer to the ground (6) than the upper portion (2), where the mast at the upper portion (2) is equipped with at least a communication or sensor element (12), wherein the mast (1) is equipped with an actuator (8) that, based on calculated instructions, is designed to alter the elevation above ground (10) of the mast upper portion (2).
E04H 12/18 - Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
A system and method for reducing the probability of detection of a Line of Sight (14) type communication and sensor mast (1), the mast (1) having an upper portion (2) extending upwardly relatively the ground (6), and a lower portion (4) closer to the ground (6) than the upper portion (2), where the mast at the upper portion (2) is equipped with at least a communication or sensor element (12), wherein the mast (1) is equipped with an actuator (8) that, based on calculated instructions, is designed to alter the elevation above ground (10) of the mast upper portion (2).
E04H 12/18 - Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
A method and device for calibrating an antenna (1) where at least one switch (10, 22, 32) is spanning sections (12, 24) of a radiating antenna element (2), and where a controller (14) is designed to selectively close the switch (10, 22, 32) to be conductive, thus effectively short-circuiting the actual section (12, 24) of the antenna element (2) wherein the method includes: - installing the antenna (1) for field use at least for transmission or reception of signals; - then measuring the reflected power from the antenna (1) at least for a number of frequencies or frequency ranges at more than one setting of the switch (10, 22, 32); and - storing the settings that gives a desirable result of reflected power at an actual frequency or frequency range.
A method and device are for calibrating an antenna. At least one switch is spanning sections of a radiating antenna element. A controller is designed to selectively close the switch to be conductive, thus effectively short-circuiting the actual section of the antenna element. The method includes: installing the antenna for field use at least for transmission or reception of signals; then measuring the reflected power from the antenna at least for a number of frequencies or frequency ranges at more than one setting of the switch; and storing the settings that gives a desirable result of reflected power at an actual frequency or frequency range.
H01Q 3/00 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
A high voltage blocking device for a manpack antenna (1), the manpack antenna (1) having a radiating element (8) that is designed to be in electrical contact with a radio transmitter (2), wherein a capacitor (10) is connected in serial between the transmit- ter (2) and at least a part of the radiation element (8).
A three band whip antenna (1) having a base (4) where the whip antenna (1) along its whole length or part of its length, has a lowest frequency band antenna element (8) and an intermediate frequency band antenna element (10), wherein a highest frequency band antenna (12) is included in the whip antenna (1) at a position closer to base (4) than the intermediate frequency band antenna element (10).
A transfer unit for transferring a radio frequency signal between a classical antenna tuner and an antenna where the transfer unit comprises a switch for alternatively selecting a first direct route for the radio frequency signal between the tuner and the antenna or a second route via a reactive element; said reactive element comprising a variable serial capacitance and a shunt inductance connected to system earth; and where a control unit controls the switch and is adapted to select the first route when the frequency is above a predetermined value and otherwise select the second route. The variable serial capacitance comprises a set of capacitors organized as a set of binary weighted parallel capacitance values, and the transfer unit further comprises switches to engage or disengage each capacitor from the reactive element to increase or decrease the resulting capacitance as the radio frequency is decreased or increased. The control unit can use a subset of the capacitors for one range of frequencies and a different subset of the capacitors for a different range of frequencies. The control unit can alternatively measure the radio frequency by means of a sensor or receive frequency values via a data link.
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 9/14 - Length of element or elements adjustable
47.
TRANSFER UNIT FOR RADIO FREQUENCY SIGNALS AND METHOD FOR ALTERNATIVELY USING AN ELECTRICAL ANTENNA OR A MAGNETIC ANTENNA WITH A CLASSIC ANTENNA TUNER
A transfer unit (4) for transferring a radio frequency signal between a classical antenna tuner (1) and an antenna (6, 23) where the transfer unit (4) comprises a switch (9, 10) for alternatively selecting a first direct route for the radio frequency signal between the tuner (1) and the antenna (6, 23) or a second route via a reactive element; said reactive element comprising a variable serial capacitance and a shunt inductance connected to system earth; and where a control unit (20) controls the switch (9, 10) and is adapted to select the first route when the frequency is above a predetermined value and otherwise select the second route. The variable serial capacitance comprises a set of capacitors (11, 12, 13, 14) organized as a set of binary weighted parallel capacitance values, and the transfer unit (4) further comprises switches (15, 16, 17, 18) to engage or disengage each capacitor from the reactive element to increase or decrease the resulting capacitance as the radio frequency is decreased or increased. The control unit (20) can use a subset of the capacitors (11, 12, 13, 14) for one range of frequencies and a different subset of the capacitors (11, 12, 13, 14) for a different range of frequencies. The control unit (20) can alternatively measure the radio frequency by means of a sensor (21) or receive frequency values via a data link (7).
H01Q 5/00 - Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
A device of a rod antenna comprising a supply transformer and first and second beam elements, wherein both beam elements are provided with a ferrite material.
A device of a rod antenna (1, 14) comprising a supply transformer (2) and first and second beam elements (4, 6), wherein both beam elements (4, 6) are provided with a ferrite material (8', 8', 10', 10') .
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