216776 ⎘
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 normal working conditions for transformers
Sub-classes:TRANSFORMER PROTECTION USING DISTRIBUTED ENERGY RESOURCES
#2HIGH POWER SWITCHED SHUNT CAPACITOR ARCHITECTURES
#3GRID PROTECTION APPARATUS AND METHOD
#4PROTECTION ARRANGEMENT FOR A TRANSFORMER
#5TECHNIQUES FOR USING AN ENERGY STORAGE SYSTEM AS SOFT STARTER FOR LARGE INDUCTIVE DEVICES
#6PROTECTIVE RELAY DEVICE
#7TRANSFORMER APPARATUS
#8TRANSFORMER PROTECTION SYSTEM USING DIRECT CURRENT SWITCH CIRCUIT
#9PROTECTION CIRCUIT FOR ELECTRICAL POWER DISTRIBUTION SYSTEM COMPONENTS
#10ENHANCED TRANSFORMER FAULT FORECASTING BASED ON DISSOLVED GASES CONCENTRATION AND THEIR RATE OF CHANGE
#11Transformer-Hybrid Variable Reactance
#12FAULT HANDLING SYSTEM OF SOLID-STATE TRANSFORMER
#13REDUCING TRANSFORMER INRUSH CURRENT
#14REDUCING TRANSFORMER INRUSH CURRENT
#15Voltage harvester for power distribution system devices
#16POWER TRANSFORMER ASSEMBLY
#17Open phase detection
#18Optimized transformer protection
#19Fault handling system of solid-state transformer
#20Method of controlled switching for transformers using transformer residual flux
#21Voltage harvester for power distribution system devices
#22Transformer with flux linkage control and method for suppressing magnetizing inrush current of transformer
#23Isolation apparatus and method of a fault segment in a transformer loop
#24System and method for cancelling parasite voltage of neutral electric line and lifting of voltage of phase line at a remote load
#25Accurate modeling of equipment overexcitation damage curves
#26Transformer internal fault reclose block
#27Transformer protector with internal fault detector
#28Transformer short-circuit protection method and transformer short-circuit protection device
#29Transformer for underground radial loop network
#30Method for restoring power in an underground radial loop network
#31Loop restoration switching device assembly including multiple switches with common control
#32Loop restoration switching device
#33UNDERGROUND RADIAL LOOP RESTORATION DEVICE AND METHOD
#34Capacitance-coupled voltage transformer monitoring
#35Detecting device and method for detecting a fault in a transformer of a wind turbine
#36Overvoltage protection assembly
#37Intelligent transformer monitoring system
#38Transformer simulation system, and simulation and measurement method for setting value
#39Systems and methods for dissolved gas analysis
#40Systems and methods for alternating current (AC) input selection for power transformer
#41Equipment failure detection in an electric power system
#42Ground monitoring tester
#43Double incoming breaker system for power system of power plant
#44Monitoring and protection device of power distribution transformers on the low voltage side
#45Network service and transformer safety protector
#46Protection circuit for a medium voltage or high voltage transformer
#47Irrigation controller having transformer with resettable fuse
#48Protection device
#49Monitoring and locating fuse cutouts
#50Voltage harvester for power distribution system devices
#51Transformer power management controllers and transformer power management methods
#52Method for detecting a meter maintenance condition using winding resistance
#53Apparatus for mitigation of adverse effects of geomagnetically induced currents on transformers
#54Voltage differential transducer (VDT) fault detection
#55Electrical power transformer and motor pre-fluxing device
#56Method for phase controlled energizing of power transformer
#57Voltage transformer
#58Inductor capacitve reactor
#59Control method for protecting transformers
#60Power distribution transformer load prediction analysis system
#61Protection of electrical devices based on electromagnetic pulse signal
#62Apparatus and method for controlling circuit breaker for static synchronous compensator
#63Protection of power transformers
#64Method and system for improved operation of power grid components in the presence of direct current (DC)
#65Residual current detecting (RCD) and ground impedance monitoring transformer and control methods
#66Systems and methods for actuating a transformer neutral blocking system
#67Enhanced optical condition monitoring system for power transformer and method for operating power transformer
#68Method for controlled energising of a transformer
#69Phase control device
#70Rapid pressure rise detection and management system
#71Residual current detecting (RCD) and ground impedance monitoring transformer and control methods
#72System and method for magnetizing a transformer in an electrical system prior to energizing the electrical system
#73Control circuit for electric leakage circuit breaker
#74PROTECTIVE DEVICE FOR PROTECTING A TRANSFORMER AGAINST GEOMAGNETICALLY INDUCED CURRENTS
#75Device and method for reducing a magnetic unidirectional flux component in the core of a three-phase transformer
#76Controlled switching devices and method of using the same
#77Methods and apparatus for soft operation of transformers using auxiliary winding excitation
#78Method and system for protecting transformers from internal fire
#79Systems and methods for monitoring and diagnosing transformer health
#80SURGE ARRESTER OF AN AIRFIELD LIGHTING SYSTEM AND A SECONDARY CIRCUIT OF AN AIRFIELD LIGHTING SYSTEM
#81Testing device, testing method, and program for power system protection control system
#82Power-network note, variable transformer and method of operating the node
#83Oil-immersed transformer thermal monitoring and prediction system
#84Systems and methods for actuating a transformer neutral blocking system
#85Apparatus for mitigation of adverse effects of geomagnetically induced currents on transformers
#86Insulating cover for transformer brackets
#87Subsea power distribution device and system
#88Transformer protection circuit and method
#89Fault protection of a variable differential transformer (VDT) excitation circuit
#90Transformer protection system
#91Smart transformer
#92Active engine cool down time delay for automatic transfer switch controllers
#93Fault current limiter with interleaved windings
#94System, apparatus, and method for reducing inrush current in a transformer
#95Method for using an electric unit
#96Electric unit for a pumped-storage power plant having components within and outside of an underground cavern
#97Surge protection circuit, switching power supply, and surge protection method
#98Magnetizing inrush current suppression device
#99Method for controlling a current-interrupting device in a high-voltage electrical network
#100Method and system for controlling the turn-on time of a device that includes a magnetic circuit
#101Self-testing features of sensing and control electronics for a power grid protection system
#102Method and apparatus for protecting power transformers from large electro-magnetic disturbances
#103Method and apparatus for transformer diagnosis
#104Cellular power supply network, intelligent gateway and power supply control method thereof
#105Transformer inrush current restraining control equipment
#106Connection device for transformer substation modules
#107Broadband power line network device and ethernet signal coupling device thereof
#108System, apparatus, and method for reducing inrush current in a three-phase transformer
#109Magnetizing inrush current suppression apparatus
#110Method and device for protecting an autotransformer for an aircraft
#111Method and device for protecting an autotransformer for an aircraft
#112Inrush-current suppressing device and inrush-current suppressing method
#113Inrush-current suppressing device and inrush-current suppressing method
#114Relay and method for protecting transformer, and transformer protecting system having the same
#115Smart transformer
#116Continuous uninterruptable AC grounding system for power system protection
#117Transformer module with multiple protections
#118Overload protection of a voltage reduction device
#119ARC FLASH HAZARD REDUCTION FOR TRANSFORMER SECONDARIES
#120Transformer failure analysis system
#121Transformer inrush current suppression apparatus
#122Countermeasure for EMP-E3 induced currents
#123Smart transformer
#124PROTECTION SYSTEM FOR VOLTAGE TRANSFORMERS
#125Temperature monitoring system for power transformers submerged in oil
#126Phase-control switching apparatus and switching control method for phase-control switching apparatus
#127Method and apparatus for mitigation of dynamic overvoltage
#128Effect of a loss of a reactive impedance of a transformer, when secondary windings of the transformer are short circuited. The Method and the Device for a reduction of a short circuit currents
#129Protective device having a circuit breaker, in particular a low-voltage circuit breaker
#130Method for exception-based notification of the condition of an apparatus
#131Electric fence energizer lightning protection
#132GIC reducer
#133Power equipment
#134Electrical equipment for distribution network
#135Multiple UL class II secondary power sources
#136Protection system for medium-voltage potential transformers
#137Phase control switching device
#138Apparatus for monitoring open state of the secondary terminals of a current transformer
#139Fault monitoring apparatus and method
#140Method and apparatus to optimize protection of fuse-protected transformers and AF mitigation
#141Controlled three-pole close for transformers
#142Proactively operational over-voltage protection circuit
#143Proactively operational over-voltage protection circuit