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202results about How to "Maintain normal" patented technology

Emergency traction power supply system of electric motor unit

The invention discloses an emergency traction power supply system of an electric motor unit, which comprises a traction transformer used for reducing high voltage of a contact network, two rectifiers used for rectifying alternating current of secondary side windings of the traction transformer into voltage of middle direct current links, two inverters used for taking electricity from the middle direct current links and performing inversion into three-phase alternating current, a two-way auxiliary current transformer used for taking electricity from the middle direct current links and performing inversion into three-phase alternating current or taking electricity from a two-way charger and then performing boosting and rectification into the voltage of the middle direct current links, an auxiliary load used for obtaining the three-phase alternating current from the two-way auxiliary current transformer or the two-way charger by an auxiliary load power supply busbar, and the two-way charger used for obtaining the three-phase alternating current from a three-phase alternating current output side of the two-way auxiliary current transformer and performing voltage reduction and rectification on the three-phase alternating current into direct current to supply power to a lithium titanate battery and a direct current load which are connected with the two-way charger, or used for taking electricity from the lithium titanate battery and performing boosting and inversion into the three-phase alternating current to supply power to the auxiliary current transformer.
Owner:CHINA RAILWAYS CORPORATION +3

Preservation System for Nutritional Substances

InactiveUS20130269454A1Maintain and improve and minimize degradation of and and aesthetic valueInformation transmissionAutomatic control devicesFood preservationEnvironment of AlbaniaNutritional composition
Disclosed herein is preservation system for nutritional substances. The preservation system obtains information about the nutritional substance to be preserved, senses and measures the external environment to the preservation system, senses and measures the internal environment to the preservation system, senses and measures the state of the nutritional substance, and stores such information throughout the period of preservation. Using this accumulated information, the preservation system can measure, or estimate, changes in nutritional content (usually degradation) during the period of preservation. Additionally, the preservation system can use this information to dynamically modify the preservation system to minimize detrimental changes to the nutritional content of the nutritional substance, and in some cases actually improve the nutritional substance attributes.
Owner:MINVIELLE EUGENIO

Method for prewarning and monitoring failures of secondary equipment of power system

ActiveCN102707178AImprove the method of operation monitoringQuickly find abnormal operationElectrical testingPower measurement by digital techniqueElectric power systemData information
The invention provides a method for prewarning and monitoring failures of secondary equipment of a power system. Based on the real-time acquisition of power consumption data information of the secondary equipment and data collecting and sharing of a data communication network, the warning fault state of the secondary equipment are logically forecasted and judged in situ by a master station system, and the result can be provided for dispatching personnel, protection personnel and maintenance personnel to serve as the reference of operation and maintenance in the next step. The method provided by the invention perfects the operation monitoring method of the secondary equipment, no longer completely relies on the warning information of the secondary equipment per se and provides auxiliary monitoring measures; by adopting the method, abnormal operation of the secondary equipment can be quickly discovered, and personnel on site can be reminded of resolving the problem promptly, so that further expansion of accidents is prevented and the incidence of burning during operation of the secondary equipment is effectively reduced; the whole-life management strategy of the secondary equipment is helped to be built, new management references are introduced and the management and maintenance of the secondary equipment of the whole system are perfected.
Owner:CHINA ELECTRIC POWER RES INST +1

Snack/convenience foods and the like having external and/or internal coating compositions

Coating-type compositions and methods using the compositions for making new forms of chip-type and other fried or baked snack and / or convenience food items, including sweet goods, which are externally coated with and / or directly incorporate the compositions into their dough matrix. The compositions significantly increase the crispness and tensile strength of the food item after it is cooked with them in place, and so change both the organoleptic and storage qualities of the foods as to provide a new form of the underlying product. On sweet goods, the coating provides a stabilizing surface barrier for sugar toppings which prevents them from becoming tacky, moist, or wet, while adding crispness at the surface and simultaneously reducing moisture loss from the baked dough, greatly retarding staling. The coatings also provide a new and better way of applying seasonings and colorings to food products.
Owner:ADVANCED FOOD TECH
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