摘要:
A method for power quality protection includes measurement of electrical and nonelectrical parameters, calculation of additional electrical and nonelectrical parameters, comparison of the value of the calculated parameters with maximum allowed values from a power quality perspective, activation of protection mechanisms for transitioning to a safe mode or for isolation from the bus. The systems and methods may prevent equipment failures when out of the spec power quality is present in the distribution bus and may protect the distribution bus from imposing power quality problems due to equipment failures. Because most of the sensors in the systems of the present invention are already used for other control and protection purposes, there may be no reliability degradation. Most of the calculations and the control logic may be performed digitally for improved reliability and flexibility to modify algorithms.
摘要:
A 24-pulse composite AC-to-DC converter is a converter using two or more conversion methods in parallel. The converter may include a main rectifier receiving at least a portion of an input AC signal, an autotransformer having an output voltage with lower amplitude than the input AC signal, and a plurality of auxiliary bridge rectifiers, each receiving the output from each leg of the autotransformer. In one embodiment of the invention, the main rectifier may receive a substantial portion of the load current, allowing each of the auxiliary bridge rectifiers to be generally smaller than the main rectifier.
摘要:
A drive system for a multi-phase electric machine with a permanent magnet rotor, the drive system may comprise conduction paths for each phase. Detectors on each of the conduction paths may determine electrical condition of the conduction path. At least one selectable interconnection path may be present between all of the conduction paths and at least one selectable interconnection path may be operable to connect all of the conduction paths together responsively to at least one of the detectors determining that the electrical condition of its respective electrical path is representative of a predetermined electrical fault condition so that heating of the rotor during continued rotation of the rotor is prevented.
摘要:
A carrying device for carrying and storing fishing equipment comprises a front surface, a rear surface, a bottom edge, a top edge, a pair of angled opposing side edges and the pair of support straps. The front surface further comprises a main pocket and a plurality of sleeves. The top edge and the pair of angled opposing side edges have a plurality of buttons on the interior of the front surface and the rear surface to close the carrying device. A pair of support straps extends along the vertical length of the front surface and the rear surface has a plurality of support rings and a plurality of fastening straps. The support straps forms the handle of the carrying device.
摘要:
Systems and methods for a filtering wave energy using a rectangular-to-circular waveguide transition are discussed herein. An exemplary system comprises a rectangular-to-circular waveguide transition and a filter card. The rectangular-to-circular waveguide transition may include a front section and a back section opposite the front section, the rectangular-to-circular waveguide transition defining a circular hole extending from the front section of the rectangular-to-circular waveguide transition through the back section, the rectangular-to-circular waveguide transition further having a first arcuate region on the face of the transition, the first arcuate region defining a first cavity extending from the circular hole through the first arcuate region, the rectangular-to-circular waveguide transition also having a second arcuate region defining a second cavity opposite the first cavity, the second cavity extending from the circular hole through the second arcuate region. The filter card may be configured to be placed across the circular hole of the rectangular-to-circular waveguide transition.
摘要:
A network switching system includes a storage device including a plurality of application-provided flow-based rules provided by a plurality of applications. A packet processor is coupled to the storage device and includes a flow-based handler that is operable to receive a packet, determine that the packet is associated with a flow session, and associate a plurality of the application-provided flow-based rules with the packet based the association of the packet with the flow session. The packet processor also includes a flow-based rule processing engine that is operable to determine a priority for the plurality of application-provided flow-based rules and apply at least one of the plurality of application-provided flow-based rules to the packet according to the priority. The system allows a plurality of SDN applications to operate in a network switching system independently and without knowledge of each other.
摘要:
Information handling system network addresses are managed to support a consistent MAC address for iSCSI and fiber channel host bus adapter. For example, a management controller retrieves a MAC address from persistent memory, such as a network location, and assigns the MAC address to a non-persistent memory of a predetermined information handling system network component so that the MAC address remains consistent even if the network component is replaced. For example, an offload engine that supports network communications with iSCSI receives a MAC address from a network location and applies the MAC address for use by a host bus adapter. Alternatively, an offload engine supports Fiber Channel with World Wide Name or World Wide Identifier address assignments.
摘要:
A process of steam separation using a separation membrane in a separation vessel where the separation membrane separates the vessel into an intake chamber and a recovery chamber. The separation membrane comprises at least one porous support; and a cross-linked hydrophilic polymer membrane material with an inorganic particulate material or a precursor to an inorganic particulate material. The membrane material is applied to the porous support. The process comprises supplying steam to be purified to the intake chamber of the vessel, the pressure in the intake chamber being greater than the pressure in the recovery chamber; and recovering the purified steam from the recovery chamber of the vessel.
摘要:
Power detection system and method provide for a wide dynamic range power detection. The system may incorporate a coupler to sample a transmitted or received power. Such sampled power is then directed to a detector configured to generate a voltage from its rectified current. Such voltage after optional filtering and buffering is directed to multiple amplifiers wherein each amplifier has a distinct associated gain. For improved noise immunity, a differential output amplifier may be used. For low power levels, the output of an amplifier with a large gain is directed to an analog-to-digital converter (ADC), wherein the analog voltage is quantized into a digital value. As power is increased, the output of an amplifier stage with a smaller gain can then be directed to the ADC such that saturation of the ADC is avoided. Hysteresis is implemented so to avoid undesirable and unnecessary rapid switching.
摘要:
A nail polish display system includes a case, which may take the form of a shelving system or platform, sized to hold and display multiple bottles of nail polish. The bottles are attached to coupling devices, such as clamps, sleeves, magnetic couplers, etc. to an agitator, which preferably takes the form of a rotatable rod. A motor operates the agitator to move, rotate or otherwise agitate the bottles and therefore sufficiently and continuously mix the nail polish within the bottles. The system may include one or more sensors configured to detect the presence of a patron, configured to detect a position of the motor or agitator, and/or configured to detect when a door to the case is being opened. Further, the motor may be programmable and receive instructions from either a controller or control logic using input from one or more of the sensors.