Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Application No. | Application Title | Issue Date |
| 20120104847 | DISTRIBUTED POWER GENERATION Distributed power generation systems generally include a number of power sources and electrical power loads interconnected by a distribution network. Electrical switches and fuses are provided such that local groups of power sources and power loads can be established. S... | 05/03/2012 |
| 20110080000 | SYNCHRONOUS ELECTRICAL MACHINE A synchronous electrical machine comprises a plurality of phases and detecting means arranged to detect an open-circuit fault in at least one of the phases of the synchronous electrical machine. Isolating means is arranged to isolate the at least one phase of the synchr... | 04/07/2011 |
| 20100117569 | SYNCHRONOUS ELECTRICAL MACHINE A synchronous electrical machine comprising a plurality of phases, detecting means arranged to detect a fault in at least one of the phases of the synchronous electrical machine, isolating means arranged to isolate the at least one phase of the synchronous electrical ma... | 05/13/2010 |
| 20100046125 | FAULT CURRENT LIMITING An alternating current system 10 has a primary circuit 11 which forms a primary winding 18 on a core 16. A secondary winding 24 is connected with a current source 26 or, alternatively, with an impedance 60. The core 16... | 02/25/2010 |
| 20100045221 | Electrical machine arrangement Electrical machine arrangements have advantages with regard to providing local electrical power and starting. Embedding such electrical machine arrangements in machinery such as gas turbine engines is advantageous in removing mechanical linkages and reducing aerodynamic... | 02/25/2010 |
| 20100039741 | Electrical protection arrangement for an electrical distribution network Electrical distribution networks (9) are provided between an electrical power source (10, 42, 43, 50, 65) and electrical loads (11, 12, 13) in the form of a number of connections (A to G). Faults can occur within the electrical distribution network ... | 02/18/2010 |
| 20100038969 | Method and system for electrical power generation Electrical power generation systems typically comprise an electrical power distribution arrangement in which a number of electrical power generators are coupled in parallel. In such circumstances in order to avoid conflict generally a first electrical power generator is... | 02/18/2010 |
| 20100039075 | Electrical power arrangement Utilisation of a number of electrical machines such as generators all driven by a common prime mover, such as a gas turbine engine, are known. However, faults in one phase of one particular electrical machine may cause torque vibration and therefore stressing to mechani... | 02/18/2010 |
| 20100039076 | Electromechanical arrangement Electromechanical arrangements are utilised widely whereby a prime mover in the form of a mechanical assembly such as a gas turbine engine is utilised to drive an electrical machine as an electrical generator. Unfortunately the loads applied to the electrical generator ... | 02/18/2010 |
| 20100033141 | Generating system Within generator systems maintenance of stability in terms of voltage is desirable. Generally, several generators will be arranged in parallel within the generator system with one generator voltage controlled to provide dynamic responsiveness to load switching. With reg... | 02/11/2010 |
| 20100024434 | Gas turbine engine arrangement A gas turbine engine arrangement (1) comprises a first gas turbine engine (10), a second gas turbine engine (70), a differential gearbox (57) and an electrical generator (112). The differential gearbox (57) has a first input dri... | 02/04/2010 |
| 20090292488 | ELECTRICAL DISTRIBUTION NETWORKS Safe operation of electrical power distribution systems necessitates consideration of the fault level in terms of the potential for electrical current flow upon an earth or other fault within the electrical power distribution system. Previously, electrical power systems... | 11/26/2009 |
| 20090229847 | Earthing arrangement for a DC electrical system and a method of operating an earthing arrangement for a DC electrical system An earthing arrangement for a DC electrical system (10), the electrical system (10) comprises a plurality of earthing points (24A, 24B, 24C) and each earthing point (24A, 24B, 24C) is directly and permanently conne... | 09/17/2009 |
| 20070287306 | Earthing Arrangement In DC electrical power systems used for example in aircraft typically an earthing arrangement is provided between electrical power supply rails in the form of a pair of capacitors with a mid electrical voltage earthing point. In such circumstances in previous arrangemen... | 12/13/2007 |
| 20070230076 | Fault current limiting An alternating current system 10 has a primary circuit 11 which forms a primary winding 18 on a core 16. A secondary winding 24 is connected with a current source 26 or, alternatively, with an impedance 60. The core 16... | 10/04/2007 |
| 20070200535 | Fault current limiting Generators 12a are for a distributed generation system. A control system 32a receives information about network faults 14a. In normal conditions, the control system 32a controls the field current in the field coils... | 08/30/2007 |
| 20070194760 | Generator control arrangement Electrical power generation through a number of generators has efficiency benefits particularly with regard to aerospace applications. However, should parallel operation of these generators be interrupted through malfunction of one of the generators or otherwise, care m... | 08/23/2007 |
| 20070064458 | Electrical power stabilisation Use of a common electrical power bus to which a number of electrical power generators and consumers are coupled is well known. Typically, a high electrical capacitance is provided across the bus in order to provide stabilisation in the switching of generators and consum... | 03/22/2007 |
