General Electric Company

Ranganath Gururaj

Ranjit Manohar Deshmukh

Thangavelu Asokan

Prashant Sudhakar Zende

Kamal Pandey

Josep Pijoan-Parellada

Eduardo Calleja

Venkatesha Murthy

Victor Elviro

Miguel Aguirre Trigo

Venkatesha No 14/1 3'D' Main Murthy

A circuit breaker having an arc quenching system is provided. The quenching system includes an ablative device positioned within a chamber. On end of the ablative device includes an opening that receives a stationary contact. A movable contact arm travels within a channel between the closed position and an open position. When an abnormal operating condition is detected, the circuit breaker trips causing the contact arm to move. This generates a plasma arc that evaporates material from the ablative device. The evaporated material generates a pressurized gas that cools and quenches the plasma arc to improve the performance of the circuit breaker during undesired operating conditions such as a short circuit.

Circuit breaker with improved arc quenching

According to a preferred embodiment, a terminal for electrical leads comprises a housing, a guide, a current bar, a leaf spring and a moveable operator. The guide is supported by the housing and comprises guide surfaces that connect with at least one surface of the current bar. The leaf spring comprises at least one limb with an offset for clamping a cable to the current bar. Additionally, the terminal comprises a moveable operator dimensioned and configured to allow the release of a cable from contact with the current bar.

Screwless terminal for electrical leads

Growing community of inventors

Bengaluru, India

Ranganath Gururaj