The classification of complete sets of cabinets, often referred to as switchgear or electrical distribution panels, can be described in English as follows:
1. **Low Voltage Switchgear (LV Switchgear)**
   - Designed for voltage levels below 1,000 volts.
   - Typically includes circuit breakers, disconnect switches, and protective devices.
   - Used for distributing electricity in commercial and industrial buildings.
2. **Medium Voltage Switchgear (MV Switchgear)**
   - Designed for voltage levels ranging from 1,000 to 72,000 volts.
   - Often includes switchgear for transformer substations and ring main units.
   - Used in power distribution networks and industrial facilities.
3. **High Voltage Switchgear (HV Switchgear)**
   - Designed for voltage levels above 72,000 volts.
   - Comprises sophisticated equipment like circuit breakers, isolators, and surge arresters.
   - Used in electrical power transmission and large-scale power generation plants.
4. **Panelboards**
   - Typically used for lower voltage applications, often found in commercial buildings.
   - Include circuit breakers, busbars, and protective devices.
   - Designed for easy installation and circuit protection.
5. **Motor Control Centers (MCC)**
   - Designed for controlling and protecting motors and their associated starters.
   - Modular design with a range of components like motor starters, overload relays, and control switches.
   - Commonly used in industrial settings for machinery control.
6. **Power Control Centers (PCC)**
   - Similar to MCC but with a broader scope, controlling power distribution to various parts of a facility.
   - May include automated control systems for process management.
7. **Control Panels**
   - Custom-designed for specific applications, controlling and monitoring equipment or processes.
   - Can range from simple operator interfaces to complex automated systems.
8. **Metering and Monitoring Panels**
   - Designed to measure, monitor, and record electrical parameters like voltage, current, power, and energy consumption.
   - Often integrated into larger switchgear systems for efficient energy management.
Each of these categories represents a different application and level of complexity within the electrical distribution and control systems.