Intelligent electricity saver in use for three-phase AC electrical supply system
A three-phase AC, power supply system technology, applied in emergency protection circuit devices for limiting overcurrent/overvoltage, AC network circuits, AC networks to reduce harmonics/ripples, etc., can solve the problem of shortening the life of electronic components, Problems with heat, wires, insurance, circuit breakers, transformer damage, etc.
Inactive Publication Date: 2009-07-22
LEIQI ENERGY SAVING TECH
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- Application Information
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Problems solved by technology
[0008] ③ Shorten or destroy the life of electronic components;
[0009] ④The windings of inductive equipment heat up due to surges, and the insulation decreases, which eventually leads to aging and short-circuit burning;
[0010] ⑤ For incandescent lamp systems, the filament will be blown and the bulb will burst;
[0011] ⑥The power distribution system will lead to accelerated aging, resulting in damage to wires, insurance, circuit breakers, and transformers; aging equipment will cause three-phase imbalance and phase loss, thus burning out the equipment
Method used
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[0025] Figure 1, figure 2 As shown, the smart power saver for a three-phase AC power supply system includes a surge harmonic absorption circuit connected in parallel with the AC power supply, a high-voltage peak clamp pull circuit connected in parallel with the AC power supply, and the smart power saver also includes a central processing unit, The data input terminal of the central processing unit is connected with a voltage sampling circuit and a current sampling circuit; the surge harmonic absorbing circuit includes some inductance elements and capacitance elements that can work according to the power supply conditions, and the several inductance elements and the power supply line There are several relays for selecting the operation of the inductance element and the capacitance element; the data output terminal of the central processing unit is electrically connected with the relays.
[0026] Such as image 3 As shown, the high-voltage spike clamp pull circuit includes piez...
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The intelligent electricity saving device includes surging harmonic absorption (SHA) circuit, clipping and pulling circuit for peak of high voltage, CPU, voltage and current sampling circuits (VCSC) connected to the data input end of CPU. SHA circuit includes some inductance and capacitive components possible to take part in operation based on condition of power supply. Being setup between some inductance components and circuit of power supply, some relays can make selection for inductance and capacitive components to take part in operation. The data input end of CPU is connected to the said relays. VCSC capture information data when abrupt current and voltage in power grid takes place; and CPU analyzes running performance and state of users' devices, controls suited inductance and capacitive components to take part in operation to implement absorption, storage, and depression for surging harmonic so as to guarantee that users' power grid is in optimum condition.
Description
technical field [0001] The invention relates to a power saver, in particular to a power saver used in a three-phase AC power supply system. Background technique [0002] The most disturbing and ubiquitous form of AC power is surges. Surges are mainly caused by inductive loads such as motors, transformers, contactor coils, fluorescent lamp ballasts. [0003] Electric energy research experts pointed out: a simple switching action of fluorescent lamps, there are 24 instantaneous surges, and the harmonic voltage is sometimes as high as 1200V. Above; the frequency of general factory surges is 6000-81000 times / hour, and the additional power loss is more than 30%; the frequency of large factories and large switch load surges is 180000-432000 times / hour, and the additional power loss is increased Up to 35% or more. [0004] The high-voltage harmonics associated with the generation of the surge will overheat the motor and reduce the efficiency, and will oxidize the contacts, and a...
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IPC IPC(8): H02J3/00H02J3/01H02H9/04
CPCY02E40/40
Inventor 陈家欣
Owner LEIQI ENERGY SAVING TECH