LV switchgear: functions and selection

The basic functions of LV switchgear

• LV switchgear functions - Electrical protection
• LV switchgear functions - Isolation
• LV switchgear functions - Switchgear control

The switchgear

• Elementary switching devices
• Combined switchgear elements

Choice of switchgear

• Switchgear selection
• Tabulated functional capabilities of LV switchgear

Circuit-breaker

• Standards and description of circuit-breakers
• Fundamental characteristics of a circuit-breaker
• Other characteristics of a circuit-breaker
• Selection of a circuit-breaker
• Coordination between circuit-breakers
• Discrimination MV/LV in a consumer’s substation
• Circuit-breakers suitable for IT systems
• Ultra-rapid circuit breaker