While consuming less electricity than their older, less efficient counterparts, high-efficiency motors are much more likely to trip their respective circuit protectors when they start. Initial ...

Fig. 1. A typical method of measuring dc inrush involves using either a current probe (a) or a shunt (b). The relay connected to the power supply can be omitted if the rise time of the power supply is ...

Ametherm announced that its SURGE-GARD™ series of NTC inrush current limiting thermistors, recently acquired by Ametherm from Measurement Specialties (formerly RTI Electronics), has received ...

Inrush currents associated with motor starting and transformer energizing can cause interaction problems with other loads in a facility or on the power system, particularly sags that trip loads.

Rectifiers and ac-dc power supplies employ large bulk capacitors. During power-up, these capacitors require a large amount of current to charge up, resulting in a large inrush current. This inrush ...

At a power-on cycle, inrush current, if not limited, can peak to tens of even hundreds of amps when capacitive load is present, thereby increasing the probability of failure and decreasing usable ...