Digi-Key, in collaboration with Ametherm, presents a PTM describing transformer protection from inrush current using the NTC thermistor. This will provide a problem statement describing the inrush ...

Abstract: Transformer inrush currents during energization result in maloperation of transformer differential protection, due to the flow of magnetizing current only on the primary or the source side ...

Abstract: Based on the dual equivalent model of a single-phase two-winding transformer and a single-phase three-winding autotransformer, a method for identifying inrush current in single-phase ...

A transformer protection relay does not replace upstream devices. It defines responsibility. By clearly assigning fault ...

Many applications today, including industrial machinery, power tools and other high current equipment, use limiting inrush current as a major design consideration to combat the problematic effects of ...

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.

LEIDEN, Netherlands and MILPITAS, Calif., March 28, 2017 (GLOBE NEWSWIRE) -- IXYS Corporation (NASDAQ:IXYS), a global manufacturer of power semiconductors and ICs for energy efficiency, power ...

Dealing with inrush currents in automotive or industrial systems? Vishay claims that their PTC thermistors can handle higher energy, reduce component count, and protect circuits. Vishay SMD Inrush ...

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 ...

A simple approach based on original research attacks inrush currents at the source - the power transformer. The use of special core materials and transformer design/construction techniques overcomes ...