Resistor unit

Product overview
Designed for neutral grounding in distribution networks, this neutral grounding resistor using a small-resistor grounding mode effectively limits transient arc-grounding overvoltages and reduces system operating overvoltage. Engineered for 6 kV–66 kV systems and continuous currents from 100 A to 2000 A, it delivers stable protection sensitivity in industrial environments.

Key features

• High temperature durability: Melting point up to 1390°C and maximum operating temperature of 1100°C.
• Stable resistance: Small temperature coefficient to reliably maintain protection sensitivity.
• Good anti-oxidation ability: Maintains oxidation resistance at high temperatures (up to 1100°C), suitable for heavily polluted environments.
• High toughness: Retains mechanical toughness under rapid temperature changes and resists fracture.

Technical specifications

• Voltage scope: 6 kV–66 kV
• Current range: 100 A–2000 A
• Melting point: up to 1390°C
• Maximum operating temperature: 1100°C

Performance details

• Small temperature coefficient ensuring stable resistance
• Excellent anti-oxidation performance at high temperature, suitable for heavily polluted environments
• High toughness under drastic temperature changes, low fracture risk