9 results about "Motor capacitor" patented technology

A variable frequency drive to drive an electric motor for a reciprocating pumping unit includes a rectifier, a filter, an inverter, and a capacitor bank. The rectifier converts AC power to DC power for filtering by the filter. The inverter converts the DC power to three-phase AC power for output to the electric motor. The capacitor bank has one or more capacitors connected to the DC bus. The capacitor bank can store regenerative power passed from the motor through the inverter and can supply the stored DC power to the DC bus to drive the electric motor. Control circuitry can control the speed of the electric motor provided by the variable frequency drive during strokes of the pumping unit. The control circuitry can pre-charge the capacitor bank from AC power. The control circuitry can detect any fault condition.

The invention relates to an automatic water valve control device for a hydraulic soot blower, and the device comprises a local control box P2 which is connected with local installation equipment P6, P5, P4 and P3 through cables 01, 02, 03 and 04; a local control box inner wiring terminal G2, a remote alarm signal wiring terminal G3 and an electrode type water level gauge part G4 are arranged in the grounding control box P2; the alternating current control part G1 comprises a left main line L and a right main line N, is led from an alternating current 220V power supply and is provided by a remote cable 05, the left main line L and the right main line N pass through an air switch KG1, lower opening lines of the air switch are J01 and J02, a plurality of relay contacts, a position switch, a motor, a capacitor, a pressure controller and a water level gauge are arranged in the middle of the alternating current control part G1, and the alternating current control part G1 is used for automatically switching on and switching off a waterway in the soot blowing process of the hydraulic soot blower. Meanwhile, the functions of protecting the mechanical gun barrel and preventing water leakage are achieved, articles needed for manufacturing are common elements on site, the price is low, installation is convenient, and a large amount of cost is saved when the system is used for replacing original equipment.

1. Name of this design product: Vegetable chopper base. 2. Application of this design: for waterproofing motors and for fixing and supporting motor capacitors, plastic buckets, or stainless steel buckets. 3. The key design feature of this product is its shape. 4. Images or photos that best illustrate the design key points: composite state diagrams.

The utility model discloses a kind of capacitor aging machine automatic feeding structure, including feeding frame, conveying assembly is provided on the feeding frame, capacitor body is placed on conveying assembly, position baffle is installed on the feeding frame by position adjusting assembly, capacitor body is located in the side position of position baffle, the top of the feeding frame is equipped with drop hole, drop hole is located in the side position of conveying assembly, support adjusting groove is equipped in the side of drop hole, this capacitor aging machine automatic feeding structure, with the movement of driving motor capacitor body, when the tail of capacitor body is towards drop hole, its gravity center will suddenly be out of balance, will drop in the collecting box below, using the gravity center change of different position, capacitor body's placement position can be quickly adjusted, after conveying belt is conveyed, it can be regularly automatically fed.

The application relates to a box type motor capacitor, which comprises a shell and a capacitor main body, the capacitor main body is welded with a first lead wire and a second lead wire, the first lead wire and the second lead wire are respectively connected with a first protective cover and a second protective cover; the inner wall of a first connecting sleeve is provided with inner mounting threads and a first limiting convex ring, the first connecting sleeve is sleeved on the first protective cover, the inner wall of a second connecting sleeve is provided with outer mounting threads and a second limiting convex ring, the second connecting sleeve is sleeved on the second protective cover, and the inner mounting threads are engaged with the outer mounting threads. The first connecting sleeve is fixedly connected to the second connecting sleeve through the engagement of the inner mounting threads on the outer mounting threads, the first lead wire and the second lead wire are enclosed into a ring shape, the first lead wire and the second lead wire are not prone to being entangled with each other or other lead wires when the capacitors are placed in mutual stacking, and the capacitors are convenient to take.

A variable frequency drive to drive an electric motor for a reciprocating pumping unit includes a rectifier, a filter, an inverter, and a capacitor bank. The rectifier converts AC power to DC power for filtering by the filter. The inverter converts the DC power to three-phase AC power for output to the electric motor. The capacitor bank has one or more capacitors connected to the DC bus. The capacitor bank can store regenerative power passed from the motor through the inverter and can supply the stored DC power to the DC bus to drive the electric motor. Control circuitry can control the speed of the electric motor provided by the variable frequency drive during strokes of the pumping unit. The control circuitry can pre-charge the capacitor bank from AC power. The control circuitry can detect any fault condition.

A marine propulsion system includes an outboard motor including an outboard motor engine, a propulsion generator to be driven by the outboard motor engine, and an electric starter to start the outboard motor engine. The outboard motor is installed on a hull, and an outboard motor capacitor is provided in the outboard motor to supply to the starter power to start the outboard motor engine. The outboard motor capacitor has a higher output per unit volume than a lead storage battery.

The utility model relates to the technical field of power capacitors, in particular to a safe grounding alternating-current motor capacitor, which comprises a capacitor body, a protective frame and a buckle mechanism, and is characterized in that the capacitor body is arranged in the protective frame; the top of the capacitor body is provided with a threaded column, the protection frame is provided with a buckle groove, and the threaded column passes through the buckle groove. The buckle mechanism comprises a positioning plate, clamping plates and inclined struts, the clamping plates are arranged on the left side and the right side of the positioning plate, the bottoms of the clamping plates penetrate through the buckle grooves to abut against the bottom of the protection frame, and the inclined struts are arranged on the side walls of the clamping plates and abut against the top of the protection frame. The positioning plate is fixedly connected with the threaded column, and the positioning plate, the clamping plate and the inclined strut are made of metal conductive materials. According to the utility model, the capacitor body can be fixed in the protection frame, so that the capacitor is prevented from loosening or falling off during installation and use; moreover, the buckle mechanism made of a metal conductive material can achieve the grounding protection of the capacitor body. The installation of capacitor bodies with different sizes can be adapted; and the adaptability and flexibility of equipment are improved.

This application provides a motor filter capacitor connection structure and a motor, relating to the field of motor capacitor installation technology, aiming to solve the technical problem of the difficulty in connecting capacitor leads to brushes. The motor filter capacitor connection structure includes: a ring-shaped circuit board, multiple connectors, and multiple flexible plug-in components. The ring-shaped circuit board is mounted on the motor end cover and has a plate array capacitor. Each brush sleeve has a flexible plug-in component on its side wall, and each flexible plug-in component has a flexible plug-in slot. One end of each of the multiple connectors is connected to the ring-shaped circuit board, and the other end of each connector extends away from the ring-shaped circuit board and plugs into a corresponding flexible plug-in slot. By providing connectors on the ring-shaped circuit board, when the ring-shaped circuit board is mounted on the motor end cover, the connectors can be directly electrically connected to the positive and negative brushes, eliminating the need for additional electrical connection wires when connecting the capacitor to the positive and negative terminals of the motor, thus solving the problem of the difficulty in installing capacitors in small spaces.