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Inductor Selection in DC-DC Switching Power Supply

Jan , 13 2024

1、 Introduction Inductors are widely used in circuit design, and their main functions in circuits include energy storage, filtering, choking, resonance, matching, etc. The main parameters of inductance are as follows: Table 1 Key parameters of inductance NO. Name Significance 1 Inductance L The larger the L, the stronger the energy storage capacity, the smaller the ripple, and the smaller the requ...

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AC & DC Maintenance Benefits

Jan , 26 2024

Introduction Maintenance is a necessary aspect of maintaining your critical backup power system and essential to ensure optimal performance when needed. What's the difference between an AC a DC UPS? An AC UPS transports electricity current over long distances, whereas a DC UPS is an uninterruptible power system that takes in primary power (usually utility AC) and outputs DC voltage, while providin...

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Zero line electrification poses the following hazards

Feb , 03 2024

(1) When the zero line is disconnected, due to load asymmetry, the neutral point drift is caused, and the voltage of one phase of the light load will increase. When it exceeds the rated voltage of the electrical equipment, it will shorten the service life of the equipment. If it exceeds the rated voltage too much, it may even damage the equipment and cause a "group explosion" of household applianc...

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Dc insulated relay DIW-2025

Feb , 03 2024

DIW-2025 (Type A, B, C)) DC insulation monitoring relay is a relay that monitors the insulation of the DC bus, and sends a warning signal when the insulation of the bus to the ground is reduced to a certain value. Structure and working principle. The relay mainly consists of a balance resistor and a detecting integrated circuit. When the resistance of the DC bus on both sides to the ground is equa...

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Series and parallel connection of capacitors

Feb , 23 2024

Capacitor series connection: The total capacity decreases, but the withstand voltage value increases. The withstand voltage value is the sum of the withstand voltage values of two capacitors. Capacitor parallel connection: The total capacity increases, and the voltage withstand value is taken as the voltage withstand value of the smallest capacitor. If two capacitors are exactly the same, the volt...

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What is the difference between three-phase current and phase current

Mar , 01 2024

The relationship between line current and phase current is as follows For a star connected motor, the phase current is equal to the line current. For motors with triangular connections, the line current is equal to √ 3 times the phase current, and the line current lags behind the phase current by 30 °. Phase current refers to the current flowing through...

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What is The Difference Between Industrial UPS and Commercial UPS?

Mar , 06 2024

An industrial UPS (Uninterruptible Power Supply) provides backup power to critical industrial equipment during power outages, fluctuations, or disturbances. The specialized purpose of an industrial UPS system is to serve as a power protection device designed for industrial environments. Industrial UPS systems meet the demanding requirements of industrial environments, where power disruptions can c...

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Choose the Smart UPS between Online UPS vs Line Interactive UPS

Mar , 14 2024

Online UPS vs Line Interactive UPS While both UPS provide full protection from major power problems, such as surges, spikes, sags, blackouts and brownouts, they differ in a few significant areas. Simply put, an on-line UPS offers a higher level of protection than a line interactive at a higher cost. More specific areas where the two types differ include sine wave output, voltage regulation, and do...

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What are the application fields of inverters and their applications in the building materials industry

Mar , 15 2024

What are the application areas of inverters? The most important role of installing an inverter power supply is to regulate the speed of the AC motor, with good speed regulation effect, high performance, safety and reliability, simple operation, and universal system. Due to these advantages, it is suitable for many industries and has been promoted. Below is an introduction to the application fields...

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Can online high-frequency UPS work without batteries, as backup batteries during power outages

Mar , 21 2024

UPS can maintain the time to connect devices without mains power, providing additional time for data storage and orderly shutdown of programs. Can online UPS work without batteries No, online UPS (uninterruptible power supply) cannot function without a battery. The battery is a key component of an online UPS system, and its main function is to provide continuous and stable power supply to connecte...

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Four installation methods for disconnecting inverters from the power grid and the use of dedicated sockets

Mar , 30 2024

As we mentioned earlier, there are multiple methods to disconnect the inverter from the grid, but in the next section, we will focus on four common methods for RV inverter installation. Four installation methods for disconnecting inverters from the power grid 1. Direct connection Connecting your RV inverter directly to the AC distribution system of the RV through a conversion switch may be the mos...

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What is the impact of low temperature on lithium batteries and solutions

Apr , 20 2024

The use of lithium batteries in low battery temperature environments is limited. In addition to a severe drop in discharge capacity, lithium batteries cannot be charged when the battery temperature is low. When the battery is charged at low temperature, the lithium ion embedment on the battery graphite electrode and the lithium plating reaction exist simultaneously and compete with each other. Und...

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