An on-load tap changer is provided having a plurality of modules, each of which is operable to change taps in a transformer winding. The tap changer includes a motor connected to rotate at least one shaft. The at least one shaft is connected to the tap change modules and is operable upon rotation to cause the tap change modules to each perform a sequence of operations that effectuate a tap change. A multi-turn absolute encoder is connected to the at least one shaft. A monitoring system is connected to the encoder and is operable to determine from the position of the at least one shaft where the tap change modules are in the sequence of operations.

The present invention relates to a switching device for opening and closing a load circuit, in particular in an electric vehicle, having at least one switch contact which can be moved from an open position into a closed position and which is held at a distance from a counter-contact in the open position and is in electrically conductive abutment with the counter-contact in the closed position. The invention further relates to a method for switching a load circuit, in particular in an electric vehicle, at least one switch contact being moved from an open position into a closed position and thereby being brought into electrically conductive contact with a counter-contact. In order to provide the most compact, light, cost-effective and reliable switching and separation unit for load currents, it is provided according to the invention that, in a safety position, the at least one switch contact is held separated from the counter-contact in order to protect the load circuit.

The present invention relates to a switching device for opening and closing a load circuit, in particular in an electric vehicle, having at least one switch contact which can be moved from an open position into a closed position and which is held at a distance from a counter-contact in the open position and is in electrically conductive abutment with the counter-contact in the closed position. The invention further relates to a method for switching a load circuit, in particular in an electric vehicle, at least one switch contact being moved from an open position into a closed position and thereby being brought into electrically conductive contact with a counter-contact. In order to provide the most compact, light, cost-effective and reliable switching and separation unit for load currents, it is provided according to the invention that, in a safety position, the at least one switch contact is held separated from the counter-contact in order to protect the load circuit.

A high current switching device includes an electrical switch assembly and an input shaft operatively connected to the electrical switch assembly. An actuator assembly is attached to the input shaft and is configured to move the input shaft to operate the electrical switch assembly. The actuator assembly includes a mechanical advantage device operatively attached to the input shaft. An actuator is coupled to the mechanical advantage device such that movement of the actuator causes movement of the input shaft to operate the electrical switch assembly. The mechanical advantage device is configured to decrease an amount of force required to move the input shaft by the actuator.

A high current switching device includes an electrical switch assembly and an input shaft operatively connected to the electrical switch assembly. An actuator assembly is attached to the input shaft and is configured to move the input shaft to operate the electrical switch assembly. The actuator assembly includes a mechanical advantage device operatively attached to the input shaft. An actuator is coupled to the mechanical advantage device such that movement of the actuator causes movement of the input shaft to operate the electrical switch assembly. The mechanical advantage device is configured to decrease an amount of force required to move the input shaft by the actuator.

An operating mechanism includes an input shaft, an output shaft, and a connecting rod assembly, and the connecting rod assembly includes an input connecting rod and an output connecting rod. A disconnector includes a plurality of stacked sub-switches, and each sub-switch includes a movable contact and a stationary contact. The input shaft is fastened to the handle, the connecting rod assembly is configured to be in transmission connection to the input shaft and the output shaft, and the output shaft is configured to drive the movable contact to rotate. The handle is configured to drive the input shaft to rotate, and the input shaft is configured to drive the input connecting rod to rotate, so that the input connecting rod collides with the output connecting rod, and the output connecting rod drives the output shaft to rotate, to separate the movable contact from the stationary contact.

An electrical wiring device includes a traveler conductor with a bracing portion that couples the traveler conductor to a support structure formed in the housing of the device. The bracing portion and the support structure facilitate an interference fit between the bracing portion and the support structure. A flipper conductor of the wiring device is structured to be actuated between a first position and a second position, in order to supply power and cut off power to a load electrically connected to the wiring device. When the flipper conductor moves from the second position to the first position, there is an impact on the traveler conductor. The bracing portion has angled cuts that enable the bracing portion to tilt slightly back and forth upon impact from the flipper conductor. The angled cuts and the thermoplastic material properties of the support structure significantly reduce bouncing of the overall traveler conductor structure.

An electrical wiring device includes a traveler conductor with a bracing portion that couples the traveler conductor to a support structure formed in the housing of the device. The bracing portion and the support structure facilitate an interference fit between the bracing portion and the support structure. A flipper conductor of the wiring device is structured to be actuated between a first position and a second position, in order to supply power and cut off power to a load electrically connected to the wiring device. When the flipper conductor moves from the second position to the first position, there is an impact on the traveler conductor. The bracing portion has angled cuts that enable the bracing portion to tilt slightly back and forth upon impact from the flipper conductor. The angled cuts and the thermoplastic material properties of the support structure significantly reduce bouncing of the overall traveler conductor structure.