03-05-2025
Power factor correction capacitors are crucial components in electrical systems, helping to improve the power factor, reduce transmission losses, and stabilize voltage. However, under certain operating conditions, installing a reactor (inductor) in series with the capacitor becomes essential to protect the equipment and ensure the system operates efficiently. This article will help you understand when […]
01-05-2025
Capacitors are crucial components in both industrial and residential power systems. They are widely used for reactive power compensation, voltage stabilization, transmission loss reduction, and power factor improvement. However, the performance of capacitors greatly depends on operating conditions, particularly the voltage supplied to them. In practice, grid voltage is not always stable and may fluctuate […]
18-04-2025
An RCBO (Residual Current Circuit Breaker with Overcurrent protection) is an electrical safety device that integrates both residual current protection and overcurrent protection. It combines the functions of an RCCB and an MCB into a single unit. RCBOs protect people from electric shock hazards and safeguard equipment from overloads and short circuits. They are commonly […]
12-04-2025
Type Test is a series of tests conducted on a representative sample of electrical equipment to verify that the product meets specified technical standards (such as IEC, ANSI, UL, TCVN, etc.). Type Testing is not performed on every mass-produced product but only on selected samples. If the tested sample meets the required standards, other products […]
10-04-2025
An ACB (Air Circuit Breaker) is an air-type circuit breaker used to protect electrical systems from overloads, short circuits, and in some cases, phase loss, undervoltage, or leakage currents. ACBs can handle higher current ratings than MCCBs, typically ranging from 630A to 6300A, making them suitable for low-voltage electrical systems in industrial and commercial applications. […]
06-04-2025
Definition of MCB An MCB (Miniature Circuit Breaker) is an automatic overcurrent protection device commonly used in low-voltage electrical systems. It functions by disconnecting the circuit when the current exceeds the permissible limit, thereby protecting electrical equipment and wiring from damage caused by overload or short circuit. Standards applicable to MCB IEC 60898-1: International standard […]
