Technical knowledge

14/08/2026 55 views

Why Won't the Inverter Charge the Battery? How to Check and Fix It

This article analyzes common reasons why an inverter fails to charge the battery—ranging from input power, charging voltage and current, wiring, and fuses to charging mode settings and the actual condition of the battery itself. It guides users through a step-by-step inspection process to accurately identify the fault and resolve the issue safely before resorting to replacing the inverter or battery.

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Is It Safe to Use an Inverter While Charging the Battery?

This article analyzes the safety of simultaneously charging a battery and using an inverter, while highlighting risks associated with simultaneous charge/discharge currents, overheating, wiring, connectors, and system protection capabilities. It aims to help users operate chargers, inverters, and batteries correctly, thereby minimizing the risk of overload and extending equipment lifespan.

14/08/2026 38 views

What Are Battery Chargers and Power Inverters? How Do They Differ?

This article explains what battery chargers and power inverters are, detailing the functions and basic operating principles of each device. It also clarifies the distinction between charging a battery and converting DC power from the battery into 220V AC electricity, helping users select the right equipment for their energy storage and backup power needs.

13/08/2026 42 views

Guidelines for Periodic Inspection and Maintenance of Reactors to Ensure Safety and Prevent Fire and Explosion

This article outlines the procedure for the periodic inspection and maintenance of reactors in industrial power systems, focusing on key parameters such as operating temperature, insulation condition, connections, vibration, noise levels, and actual current. This enables technicians to detect early signs of overheating or damage, allowing for proactive intervention before issues escalate into coil burnout, short circuits, or damage to associated equipment.

13/08/2026 25 views

A Guide to Selecting the Right Reactor for Business Owners and Manufacturing Plants

This article guides business owners and factory operators in selecting the appropriate reactors—ranging from those for variable frequency drives (VFDs) to those for capacitor banks and harmonic filtering systems—based on actual operational needs. It focuses on practical criteria such as load capacity, voltage, rated current, harmonic levels, investment costs, and equipment protection requirements, helping businesses avoid specification errors and minimize operational risks.

12/08/2026 33 views

What Is a 7% Detuned Reactor and Why Is It Commonly Used with Power Factor Correction Capacitors?

This article explains what a 7% reactor is, the significance of the 7% reactance ratio when paired with compensation capacitors, and why this configuration is widely used in reactive power compensation systems affected by harmonics. It also clarifies the reactor's role in shifting the resonant frequency, limiting harmonic currents entering the capacitors, reducing the risk of overcurrent and overheating, and extending the service life of the capacitor system.

12/08/2026 22 views

Signs of Reactor Overheating or Failure

This article provides a guide on identifying signs of reactor overheating or failure—such as abnormal temperatures, noise, vibration, burning odors, coil discoloration, and electrical irregularities. It also analyzes common causes and helps users determine when inspection, maintenance, or replacement is necessary to prevent faults from spreading to other equipment within the electrical system.

12/08/2026 29 views

Is It Normal for a Reactor Coil to Hum During Operation? Causes and How to Check It

The article explains the reasons why reactors often make buzzing noises when operating, from the magnetostriction of the steel core, electromagnetic forces and mechanical vibrations to the effects of harmonics or overload. Thereby helping users distinguish normal operating noises from abnormal signs that need to be checked to avoid affecting the durability and safety of the device.

12/08/2026 25 views

How Do Copper-Wound and Aluminum-Wound Inductors Differ?

This article compares reactors wound with copper versus aluminum based on criteria such as electrical conductivity, power loss, heat generation, durability, weight, and investment cost. It enables users to understand the advantages and disadvantages of each material and select a reactor that aligns with their operational requirements, budget, and actual usage conditions.

12/08/2026 25 views

Top 7 Popular Reactor Brands in Vietnam and How to Choose the Right One

This article compiles the top 7 reactor brands popular in the Vietnamese market, focusing on product characteristics, application areas, and key technical criteria for selection. It provides an overview of the reactor market, enabling readers to easily compare options and select the right solutions for variable frequency drives (VFDs), capacitor banks, harmonic filtering, and industrial electrical systems.