52results about How to "Reduce power supply capacity" patented technology

There is provided an in-vivo information acquisition apparatus capable of detecting high-accuracy in-vivo information substantially at the same time in a plurality of different examination sites in a body cavity and an in-vivo information acquisition apparatus system capable of introducing a plurality of in-vivo information acquisition apparatuses into a patient at the same time. The in-vivo information acquisition apparatus includes a specimen-collecting section for collecting a specimen at an examination site in a body cavity, a specimen-evaluating section for evaluating the specimen collected by the specimen-collecting section and outputting an evaluation result, a labeling section having identification information unique to the in-vivo information acquisition apparatus, a communication section for receiving a signal transmitted from the outside and for transmitting to the outside the evaluation result output by the specimen-evaluating section, and a power supply section for supplying electrical power.

This invention relates to a method for changing the unblocked cabinet adopted in traditional computer and its server into locked one to prevent harm dust does to computer, characterized in adopting present ceramic semiconductor refrigerator to supply cold source for blocked cabinet, temperature of cabinet used in computer and its server being controlled in the range of from 25Deg.C to 30Deg.C under the effect of controlling temperature circuit to make the computer and its server safely and stably work in clean environment and suitable temperature.

In an elevator system (1000), a riding destination floor call registration device (100A, 100B) arranged at an elevator riding place is provided with such a handicapped person button (102) that a user declares to be a handicapped person separately from destination floor registration buttons (101) of a numeric keypad or the like with respective numerical buttons of 0 through 9 for registering a destination floor. When the handicapped person button (102) is pushed and the a destination floor call is input at the riding destination floor call registration devices (100A), for example, a group management control device (300) registers the destination floor call, determines an elevator car allocated to the destination floor call, rings a chime corresponding to the allocation determined elevator car, and turns on a hall lantern. In this way, the group management control device (300) rings the chime and turns on the hall lantern only when the handicapped person button is pushed.

The invention discloses an oil pumping unit system with multiple sections of steam injection packer parts. The oil pumping unit system comprises an oil pumping unit body, a steam injection thermal production oil pump and a packer assembly. The oil pumping unit body is connected with the steam injection thermal production oil pump through a traction system of the oil pumping unit body. The steam injection thermal production oil pump is connected with the packer assembly through a release sub. The packer assembly comprises the release sub, a first oil discharging pipe, a first side sealing spindle, a second oil discharging pipe, a second side sealing spindle, a third oil discharging pipe, a third side sealing spindle, a packer body, a one-way valve, a first spraying head, a second spraying head, a sealing ring, a fourth oil discharging pipe, a third side sealing spindle, a fifth oil discharging pipe, a fourth side sealing spindle, a third spraying head, a ventilation pipe, a cable inletguiding part and a side gas pipeline.

The invention relates to a model coil of an interturn insulation test of an oil-immersed power transformer and a winding method of the model coil. Specification parameters of the coil and a category of insulation paper are the same as those of the transformer. The coil is divided into an upper cake and a lower cake, wherein each cake is subjected to parallel winding by two paper wrapped wires A and B; two first tangling positions of a connecting part of the two cakes are wrapped with at least six layers of insulation paper; the two first tangling positions are located on an inner ring of the coil; a distance between the two first tangling positions is half perimeter of a lead wire of the inner ring; the head end and the tail end of each paper wrapped wire are connected together; the two paper wrapped wires serve as a high-voltage outgoing wire and a low-voltage outgoing wire respectively; an ellipse is defined by four leading-out terminals of the paper wrapped wires; the high-voltage outgoing wire and the low-voltage outgoing wire of the coil are arranged at the two ends of a long axis respectively; a short axis is coincided with a straight line formed by the two first tangling positions of the two paper wrapped wires and is equal to the diameter length of an excircle of the coil; and each of the paper wrapped wires from tangent points to end points of the leading-out terminals is additionally wrapped with at least six layers of crepe paper to reinforce insulation. The coil can effectively simulate breakdown characteristics of an interturn oil paper compound insulation system and a development process of electrical aging and thermal aging under a working condition of the large transformer, and is simple to manufacture.

The invention discloses a converter power module hedging test system which aims to reduce the power supply capacity of converter power module test. The system disclosed by the invention is provided with a power system, a control system and even sets of reactors, wherein the reactors are electrically connected with a tested power module; the power system supplies power to the tested power module; the control system outputs a SPWM waveform enabling the power modules to output reactive current with the same direction and opposite directions; and then, half of the power modules output inductive reactive current while the other half of the power modules output capacitive reactive current. Compared with the prior art, in the invention, the total instantaneous reactive power of the power modulesis zero in the test process; a module full-voltage and high-current continuous test can be conducted for a power device, the power modules and even the whole machine simply by using a small-capacity power system; the power capacity and the power loss required for a high-voltage and high-current continuous test of the power device are reduced; the construction cost of the test device is lowered; and the working efficiency of power module test is effectively improved.

The invention discloses a floor type multi-rope oil extractor system. The system comprises an oil extractor main body, a gas injection thermal recovery oil extracting pump and a packer module; the oilextractor main body is connected with the gas injection thermal recovery oil extracting pump through a traction system thereof; the gas injection thermal recovery oil extracting pump is connected with the packer module through a hand-free joint; the oil extractor main body comprises a concrete foundation, a shifter guide rail, a rail clamper module, a control cabinet, a bracket, an adjustable balance counterweight, an upper platform, an upper guard combination, a power device, a brake, the traction system and an elevator; the traction system comprises a traction wheel, a steel wire rope, a movable pulley set and a steel wire rope joint; the steel rope is divided into an elevation steel wire rope and a balance steel wire rope; one end of the elevation steel wire rope is fixed on the traction wheel and bypassed through the traction wheel, and the other end is fixedly connected with the steel wire rope joint on the bracket through the elevator and the movable pulley on the elevator; andthe balance steel wire rope is opposite to the elevation steel wire rope, one end is fixed on the traction wheel and bypassed through the traction wheel, and the other end is fixedly connected with the steel wire rope joint on the bracket through the adjustable balance counterweight and the movable pulley on the adjustable balance counterweight.

The invention discloses a test device carrying out generator iron core magnetization under voltage and a method thereof; the test device comprises the following units: switchgear connected with a voltage source and having over-current and open-phase protection; a rectification inversion module connected with a switchgear outgoing line so as to continuously adjust voltage amplitude and frequency; an excitation transformer connected with the rectification inversion module so as to lift up the test voltage outputted by the rectification inversion module; a high capacity single-phase wattless automatic compensation module connected with the excitation transformer so as to compensate the wattless current in the test voltage and reduce the power supply capacity needed in the test; an excitation coil connected with the excitation transformer and used for inducing magnetic flow on a generator sample in the test, wherein the excitation coil is in one turn, and formed by a plurality of insulation cables arranged in parallel; a control table respectively connected with the switchgear, the rectification inversion module and the high capacity single-phase wattless automatic compensation module, and controlling same. The test device and method can reduce the test needed power supply capacity, and can simplify test wiring, thus reducing test preparation time.

The invention relates to an energy storage type electric control driving system of a workover rig, which comprises a permanent-magnet machine, a permanent-magnet machine controller assembly and an energy storage assembly, wherein the permanent-magnet machine controller assembly is connected with the permanent-magnet machine and the energy storage assembly respectively. Compared with the prior art,the energy storage type electric control driving system of the workover rig has the characteristics of high dynamic efficiency of the workover rig, high mechanical transmission efficiency, small volume, light weight, steel material conservation, low cost and the like.

In a method of manufacturing an electron source, a plurality of row wirings, a plurality of column wirings, and a plurality of pairs of conductive films arranged in a matrix by the plurality of row and column wirings, are formed on a substrate, each pair of conductive films being formed through a gap. After then, a row wiring is selected among the plurality of row wirings in the presence of an activation substance source, and a substantially same constant voltage is applied to each of a plurality of pairs of conductive films connected to the selected row wiring, while a predetermined voltage is applied to at least specific pairs of conductive films among a plurality of pairs of conductive films connected to unselected row wirings of the plurality of row wirings.

The invention discloses an active electric power filter device with a self-testing function and a testing method. A control system of the active electric power filter device comprises a man-machine interface, a filtering module and a harmonic wave source module, wherein the filtering module and the harmonic wave source module are connected with the man-machine interface at the same time. During testing, the power supply capacity of a tested place is not required to be larger than the rate capacity of the active electric power filter device, and only relatively smaller power supply capacity is required, so that the cost for a transformer, a conducting wire, a switch and the like can be reduced greatly; a test platform does not need to provide an extra harmonic wave source load, and one of tested active electric power filter devices in the test platform can serve as a harmonic wave source load, so that the cost can be saved correspondingly; and an experimental platform comprises two tested active electric power filter devices, and the two active electric power filter devices can be tested at the same time, so that the test efficiency can be improved, and the productivity can be increased.

The invention discloses a method for assisting a ship berthing at a port to use shore power. Historical information about that the ship is connected with shore power is shared through information interaction between a ship shore power data center and a port shore power data center, the berthing direction of the ship is guided and a ship user is guided to select appropriate shore power capacity byautomatically searching historical berthing information of the ship before the ship berths at the port; in the inspection work before ship-shore connection, an operator can be clearly indicated to test a safety circuit, the uncertain problems caused by non-unified design standards of safety circuits, un-real-time updating of late transformation information and the like are avoided, and the serviceefficiency of port shore power is improved. A port side performs data processing by referencing the historical information of the berthed ship and adopting a weighting coefficient method and configures the appropriate shore power capacity, excessive configuration is avoided, and the investment cost is reduced.

The invention provides a power supply capacity compensation method in a transformer three-phase partial discharge experiment. The method comprises the steps that the compensation reactance values of adjustable reactors L1, L2 and L3 are preset to be L11, L21 and L31; the frequency and voltage of a variable frequency power supply are adjusted; When the voltage is between 50 and 100V, the adjustable reactors and a tested transformer are in a parallel resonant state, the resonant frequencies are determined as f11, f21 and f31; according to a formula described in the description, the inlet capacitance of the tested transformer is C1, C2 and C3 respectively; when the resonant frequency is 250HZ, the compensation reactance values of the adjustable reactors are L12, L22 and L32; the compensation reactance values of the adjustable reactors are adjusted to L12, L22 and L32; the frequency of the variable frequency power supply is adjusted, and the adjustable reactors and the tested transformer are in a parallel resonant state above 250HZ; and the voltage of the variable frequency power supply is adjusted to test voltage. Power supply capacity needed by the partial discharge experiment can be reduced. The nearby power supply of the transformer can be used to carry out the experiment.

This contactless electrical power supply device (1) is provided with: a securing part (2); a first moveable part (Y-axis moving element (3)) that is moveably mounted on the securing part (2); a second moveable part (component mounting head (4)) that is mounted so as to be capable of moving relative to the first moveable part (3); a first contactless electrical power supply mechanism (high-frequency electrical power source circuit (51), first electrical power supply electrode plates (52, 53), first electrical power receiving electrode plates (55, 56), first electrical power receiving circuit (57)) for supplying electrical power in a contactless manner from the securing part (2) to a first electrical load (L1) on the first moveable part (3); and a second contactless electrical power supply mechanism ((51, 52, 53, 55, 56, 57), high-frequency electrical power transmitting circuit (61), second electrical power supply electrode plates (62, 63), second electrical power receiving electrode plates (65, 66), second electrical power receiving circuit (67)) for supplying electrical power in a contactless manner from the securing part (2) via the first moveable part (3) to a second electrical load (L2) on the second moveable part (4). Consequently, contactless electrical power supply is carried out from the securing part (2) to the second electrical load (L2) on the second moveable part (4) for driving, in combination, a plurality of drive mechanisms (linear motor device (150), ball screw feed mechanism).

The invention relates to the technical field of heat pumps, in particular to a heat pump system for combined supply of a kitchen dish washing machine and a dining room air conditioner. The system canprovide low-cost hot water for the kitchen dish washing machine, cold air or frozen water needed by the air conditioner is supplied to a dining room at the air conditioner season, treated exhaust airof the kitchen is utilized for being supplied to a heat pump in winter, and the energy efficiency of the heat pump is improved. According to the system, the power supply capacity of the dish washing machine is reduced by 60% or above, and the hot water heating cost is reduced by 70% or above compared with electric heating; and meanwhile, the free air conditioner can be achieved in the dining room,the kitchen exhaust air is utilized in winter for heat energy recycling, and meanwhile the energy efficiency of the heat pump is improved.