Three Types of Voltages in Electrical Systems
Understanding voltage classifications for switchgear applications
1
Low Voltage (LV)
Voltage Range:
Up to 1,000V AC / 1,500V DC
Applications:
- • Residential buildings
- • Commercial facilities
- • Small industrial equipment
- • Motor control centers
Safety Level:
Standard protection required
2
Medium Voltage (MV)
SwitchgearMFG Specialty
Voltage Range:
1kV to 35kV (up to 69kV in some regions)
Applications:
- • Industrial plants
- • Distribution substations
- • Large commercial buildings
- • Power distribution networks
Safety Level:
Enhanced protection & specialized equipment
3
High Voltage (HV)
Voltage Range:
Above 35kV (typically 69kV+)
Applications:
- • Transmission lines
- • Power generation plants
- • Primary substations
- • Grid interconnections
Safety Level:
Maximum protection & specialized training
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