Voltage Transformers NAMi-330

The NAMi-330 series single-phase anti-resonance inductive voltage transformers are designed to transmit measurement signals to measuring devices, protection systems, automation, signaling, and control in AC networks with industrial frequency at voltage classes of 110, 220, 330, and 500 kV.

Key Features:

• Operate on electromagnetic induction to convert AC voltage levels while maintaining constant frequency.
• Hermetically sealed with a provision for sealing the metering winding.
• Offer a wide range of nominal powers with accuracy classes up to 0.2, eliminating the need for load resistors.
• Feature a bellows compensator to handle temperature-induced oil volume changes and act as a safety valve.
• 220-500 kV transformers have a cascade design for easier transport and installation.
• Require minimal maintenance, primarily oil level monitoring.