CN2872701Y

CN2872701Y - AC power supplier

Info

Publication number: CN2872701Y
Application number: CNU200620002229XU
Authority: CN
Inventors: 李和元
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-02-10
Filing date: 2006-02-10
Publication date: 2007-02-21
Anticipated expiration: 2016-02-10

Abstract

The utility model provides an AC power supply device, which comprises a three-phase power input terminal and the load output terminal thereof, wherein induction coils are respectively arranged on bus of each phase between the three-phase power input terminal and the load output terminal; and circular iron cores are arranged in the induction coils and fixedly sheath on bus of each phase of three-phase power supply. One tab of each induction coil is connected with the primary end of a voltage stabilizing transformer, and the other tab is connected with the input terminal of zero line of the three-phase power supply. The secondary output of the voltage stabilizing transformer is connected to another load output terminal of 60 KW. The utility model is applicable to power supply of AC 50 Hz (or 60 Hz), rated operational voltage 380 V and capacity 200 KW, and has improved power output and reduced power consumption by 19%.

Description

A kind of AC power supply device

Technical field

The utility model relates to power technology, particularly a kind ofly is used for industrial AC power supply device.

Background technology

In existing ac power supply system, the utilance of electric energy is an important problem, often because the power factor of power supply is low, causes the loss and the waste of a large amount of electric energy, and this situation has also influenced the raising of business economic benefit.Though various energy savers emerge in an endless stream, its energy-conservation amplitude is all smaller, installs also more complicated, for small business, needs great amount of investment to be not easy to realize.

The utility model content

The purpose of this utility model is to provide a kind of AC power supply device that can reach energy-conservation significantly purpose by the utilance that improves electric energy and improve the power supply output quality.

A kind of AC power supply device of the utility model, comprise three-phase power input end and load output thereof, on each the phase bus between three-phase power input end and the load output, be respectively equipped with induction coil, a tap of each induction coil is connected to the elementary of a voltage stabilizing transformer respectively, another tap links to each other with the zero line input of three phase mains, secondary another load output that exports to of voltage stabilizing transformer.

The utility model AC power supply device, wherein said induction coil is provided with annular core, and the annular core suit is fixed on each phase bus of three phase mains.

The utility model AC power supply device wherein is connected to compensation condenser and signal transformer at described load output, and signal transformer links to each other with contactor successively with a controller, the contact of contactor be connected to compensation condenser with each mutually between the bus.

The utility model AC power supply device, wherein said controller is provided with a single-chip microcomputer and coupled PLC controller, signal transformer elementary is connected on any mutually and between the zero line of three phase mains, the secondary output of signal transformer is connected to the input of single-chip microcomputer, and the output of PLC controller links to each other with contactor.

The utility model AC power supply device, the external diameter of wherein said annular core are 15 ± 2 centimetres, and length is 50 ± 1 centimetres, and the number of turn of described induction coil is 100 ± 2 circles, and adopting width is that 5 millimeters, thickness are that 2.5 millimeters copper cash coiling forms.

The beneficial effect of the utility model AC power supply device is:

1, on the structure, goes up mutually in each of three phase mains more than 200 kilowatts and all to be respectively equipped with induction coil, export another load output to by voltage stabilizing transformer, thereby in original loaded work piece, provide power supply output to another load.

2, in the control, on each phase bus of three phase mains, be connected to compensation condenser, and form compensated line, guaranteed power quality to load output by single-chip microcomputer, PLC controller and contactor.

3, simple in structure, its energy-conservation amplitude is bigger, but conservation of power reaches 19%, and enterprise does not need great amount of investment, helps the raising of business economic benefit.

Description of drawings

Below in conjunction with accompanying drawing the utility model number is described further:

Fig. 1 is the block diagram of the utility model AC power supply device;

Fig. 2 is the circuit diagram of the utility model AC power supply device;

Fig. 3 is the schematic diagram of induction coil in the utility model AC power supply device.

Embodiment

Referring to Fig. 1 and Fig. 2, the utility model AC power supply device, comprise three-phase power input end A, B, C, 0 and load output FZ1, three-phase power input end A, B, C, 0 and load output FZ1 between each phase bus A, B, C on be respectively equipped with induction coil GQ.Induction coil GQ is provided with annular core, the annular core suit is fixed on each phase bus A, B, the C last (referring to Fig. 3) of three phase mains, the tap of each induction coil GQ is connected to the elementary of a voltage stabilizing transformer WB respectively, another tap links to each other with the zero line input 0 of three phase mains, secondary another load output FZ2 that exports to of voltage stabilizing transformer WB.

In the embodiment of the utility model AC power supply device, the external diameter of annular core is 15 ± 2 centimetres, and length is 50 ± 1 centimetres, and annular core is fixed on each mutually on the mother by insulating support.The number of turn of line induction coil GQ is 100 ± 2 circles, and adopting width is that 5 millimeters, thickness are that 2.5 millimeters copper cash coiling forms.

Load output FZ1 is connected to compensation condenser C and signal transformer XB, and signal transformer XB links to each other with contactor JC successively with controller KZ, the contact of contactor JC be connected to compensation condenser C with each mutually between bus A, B, the C.

Controller KZ is provided with a single-chip microcomputer PC and coupled PLC controller, signal transformer XB elementary is connected between the A and zero line 0 of three phase mains, the secondary output of signal transformer XB is connected to the input of single-chip microcomputer PC, and the output of PLC controller links to each other with contactor JC.

The operation principle of this AC power supply device is as follows:

1, when the three phase mains energising was arranged more than 200 kilowatts, induction coil GQ obtained induced current and exports another load output FZ2 to by voltage stabilizing transformer WB, thereby in original loaded work piece, provided power supply output to another load.

2, in power supply, take place when under-voltage when three phase mains a certain, signal transformer XB acquired signal also exports single-chip microcomputer PC to, the then corresponding contactor JC that outputs control signals to of the PLC controller that links to each other with single-chip microcomputer, the contacting compensation condenser C of contactor JC with each mutually bus carry out under-voltage compensation, reach the purpose that stable output is arranged at load output FZ1.When under-voltage disappearance, the contact of contactor JC discharges.

In the embodiment of the utility model AC power supply device, be applied to exchange 50HZ (or 60HZ), rated operational voltage 380V, during power circuit that capacity is 315 kilowatts, another load output FZ2 of device has the power supply output that can reach 60 kilowatts, and through actual measurement, the energy-conservation amplitude of this device can reach 19%.

Claims

1. AC power supply device, comprise three-phase power input end (A, B, C, 0) and load output (FZ1), it is characterized in that: at described three-phase power input end (A, B, C, 0) and each the phase bus (A between the described load output (FZ1), B, C) be respectively equipped with induction coil (GQ) on, a tap of each described induction coil (GQ) is connected to the elementary of a voltage stabilizing transformer (WB) respectively, another tap links to each other with the zero line input (0) of described three phase mains, secondary another load output (FZ2) that exports to of described voltage stabilizing transformer (WB).

2. AC power supply device as claimed in claim 1 is characterized in that: wherein said induction coil (GQ) is provided with annular core, and described annular core suit is fixed on each phase bus (A, B, C) of described three phase mains.

3. AC power supply device as claimed in claim 1 or 2, it is characterized in that: wherein be connected to compensation condenser (C) and signal transformer (XB) at described load output (FZ1), described signal transformer (XB) links to each other with contactor (JC) successively with a controller (KZ), the contact of described contactor (JC) be connected to described compensation condenser (C) with each mutually between the bus (A, B, C).

4. AC power supply device as claimed in claim 3, it is characterized in that: wherein said controller (KZ) is provided with a single-chip microcomputer (PC) and coupled PLC controller (PLC), described signal transformer (XB) elementary is connected between any phase (A or B or C) and zero line (0) of described three phase mains, the secondary output of described signal transformer (XB) is connected to the input of described single-chip microcomputer (PC), and the output of described PLC controller (PLC) links to each other with described contactor (JC).

5. AC power supply device as claimed in claim 4, it is characterized in that: the external diameter of wherein said annular core is 15 ± 2 centimetres, length is 50 ± 1 centimetres, and the number of turn of described induction coil (GQ) is 100 ± 2 circles, and adopting width is that 5 millimeters, thickness are that 2.5 millimeters copper cash coiling forms.