Gas-insulated instrument transformer for enhanced safety and reliability
TVI is a SF6 gas-insulated Inductive Voltage Transformer built for revenue metering and protection in high voltage networks. The TVI has been designed for voltage up to 420 kV.
• Suitable for both metering and protection
• Magnetic cores made of laminated steel with oriented grain and a high level of permeability
• Windings made of electrolytic copper
• Safety margin for normal wind loads, stress from conductors and seismic forces
• Remote control of the internal insulation level by means of pressure gauge provided with an alarm threshold and lock threshold
• A pressure relief device protects the apparatus from internal overpressure
Applications
• Revenue metering
• Protective relaying
• System control and indication of power flow