They are known as complete switchgear assemblies because they integrate inside them such electrical components as circuit breakers, disconnectors, control devices, protective relays, and monitoring units into one modular solution. What is Medium Voltage Switchgear? A full range of primary or secondary distribution MV equipment to control, protect, and isolate power distribution systems in electrical distribution, commercial, and industrial applications. The SeT series offers options up to 36kV and up to 72kV. Fundamentally, these classes are defined by the specific voltage levels they are engineered to manage. It is the core component of the power system, so it is responsible for the control, protection and isolation of circuits and equipment, and is also used to regulate power flow, quickly cut off. Modern electrical substation showing low, medium, and high voltage equipment with VIOX switchgear and distribution systems. Voltage classifications are not universally standardized—they vary by region and governing body. The two primary standards organizations are: The IEC standards, particularly. High Voltage Switchgear (HV/HT), often referred to as HV (High Voltage) or HT (High Tension) switchgear, is a vital part of modern power systems. You'll find it in power plants, substations. 8 essential formulas with worked examples - Ohm's Law, Watt's Law, voltage drop, transformer ratio.