ABB SPASI23 Busbar Protection Terminal.

Product Details

The SPASI23 is a type of protective relay.It works by continuously monitoring the current flowing through all of the feeders connected to a specific busbar.Under normal operating conditions,the sum of these currents should equal zero.If a fault occurs on the busbar itself,this balance is disturbed,and the SPASI23 quickly detects the anomaly.The terminal’s robust design allows it to operate reliably in the harsh electrical environments of substations.

Key Features and Application

The primary function of the SPASI23 is to provide fast and reliable fault detection to isolate the busbar before a fault can cause widespread damage or a cascade failure.Its high-speed operation is critical for maintaining the stability of the power system.It is commonly applied in high-voltage substations for both transmission and distribution networks.While the SPASI23 is part of an older generation of ABB’s substation automation products,it remains a critical component in many existing installations due to its proven reliability and performance.

Maintenance and Support

The SPASI23 is designed for a long service life and requires minimal maintenance.Its functionality is typically verified through routine testing as part of a substation’s maintenance schedule.Since the SPASI23 is a legacy model,it’s no longer in production,so support is primarily limited to acquiring new-old stock or refurbished units for repair and replacement.Specialized suppliers of power automation equipment are the primary source for these parts.