Electrical transmission or interconnection systems

YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS Y10USPC classification Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T307/00Electrical transmission or interconnection systems

Y10T307/25Plural load circuit systems Y10T307/258Common conductor or return type Y10T307/266Polyphase Y10T307/273Phase balancing Y10T307/281Voltage divider type Y10T307/289Plural output generators Y10T307/297Transformer connections Y10T307/305Plural sources of supply Y10T307/313Interconnected for energy transfer Y10T307/32With control of magnitude of energy transfer Y10T307/328Diverse sources Y10T307/336AC and DC Y10T307/344Substitute or alternate source Y10T307/352With control of magnitude of current or power Y10T307/359Diverse sources Y10T307/367AC and DC Y10T307/375Different frequencies Y10T307/383Different voltages Y10T307/391Selectively connected loads and/or sources Y10T307/398Anticoupling of load circuits through same source Y10T307/406Control of current or power Y10T307/414Load current proportioning or dividing Y10T307/422Constant magnitude control Y10T307/43By control of one or more load circuits Y10T307/438Limit control Y10T307/445Serially connected load circuits Y10T307/453Selective series-parallel connections Y10T307/461Selectively connected or controlled load circuits Y10T307/469Condition responsive Y10T307/477Code-controlled Y10T307/484Sequential or alternating Y10T307/492Circuit arrangements or layouts Y10T307/50Plural supply circuits or sources Y10T307/505One source floats across or compensates for other source Y10T307/511With intervening converter Y10T307/516Storage battery or accumulator-type source Y10T307/522Dynamoelectric-type source Y10T307/527Storage battery or accumulator-type source Y10T307/533With series-connected auxiliary source Y10T307/538Tap-changing or variable number of cells Y10T307/544Circulating- or inter-current control or prevention Y10T307/549Load current control Y10T307/555Load current division Y10T307/56Serially connected sources Y10T307/565Fixed or predetermined ratio Y10T307/571Diverse-or unlike-type sources Y10T307/576Plural generators Y10T307/582Plural converters Y10T307/587Peak or excess load Y10T307/593Constant load or current Y10T307/598Serially connected sources Y10T307/604Load-limiting Y10T307/609Serially connected sources Y10T307/615Substitute or emergency source Y10T307/62Plural substitute sources Y10T307/625Storage battery or accumulator Y10T307/631With intervening dynamoelectric machine Y10T307/636Dynamoelectric Y10T307/642Sources distributed along load circuit Y10T307/647Load transfer without paralleling sources Y10T307/653Series-parallel connection of sources Y10T307/658Diverse or unlike electrical characteristics Y10T307/664Differing frequencies Y10T307/669Differing capacities Y10T307/675Differing voltages Y10T307/68Generator sources Y10T307/685Series-connected sources Y10T307/691Generator sources Y10T307/696Selective or optional sources Y10T307/702Predetermined sequence Y10T307/707Plural converters Y10T307/713Plural transformers Y10T307/718Plural generators Y10T307/724Connecting or disconnecting Y10T307/729Condition responsive Y10T307/735Attainment of voltage, frequency or phase relationship Y10T307/74Switching systems Y10T307/747Plural switches Y10T307/753Lazy-man switch type Y10T307/76Selectively actuated Y10T307/766Condition responsive Y10T307/773Light, heat, vibratory or radiant energy Y10T307/779Fluid pressure, density, level, velocity or humidity Y10T307/786Mechanical force Y10T307/793Speed, centrifugal or kinetic force Y10T307/799Inertia or acceleration Y10T307/806Direction of rotation Y10T307/812Differential speed between two bodies Y10T307/819Torque Y10T307/826Electrical Y10T307/832Power or energy Y10T307/839Polarity, phase sequence or reverse flow Y10T307/845AC or DC discriminating Y10T307/852Frequency Y10T307/858Voltage Y10T307/865Current Y10T307/872Repetitive make and break Y10T307/878Electronically controlled relay Y10T307/885Responsive to physical condition Y10T307/891Thermal relay Y10T307/898Vibrating relay Y10T307/904Miscellaneous Y10T307/911With operation facilitating feature Y10T307/918Preliminary reduction in current or voltage of system Y10T307/924Switch contact conditioning Y10T307/931Polarity reversing Y10T307/937Switch actuation Y10T307/944Power circuit controlled Y10T307/951With time delay or retardation means Y10T307/957Electrically initiated Y10T307/964Series connected switches Y10T307/97With locking, holding or braking means Y10T307/977Electrical actuator Y10T307/983Fluid-pressure actuator