Product Introduction

TXRW1 series and GHTZX1 series special high-voltage current-limiting fuses are one of the main components of DDDXK1 series high-current current limiting circuit breakers/DGXK1 series large-capacity high-speed switches. It is used to extinguish the arc, limit and finally cut off the short-circuit current, the product is safe and explosion-proof, and the end has an action indicator. After the action, the user will replace it by himself, and the manufacturer will provide the user with spare parts at a preferential price for a long time.

Feature

• High Voltage Adaptability & Wide Rating Range：Suitable for 35kV–220kV high-voltage power systems, with rated current ranging from 10A to 200A and rated short-circuit breaking current up to 120kA. It adapts to diverse high-voltage scenarios such as generator excitation circuits and substation feeder branches.
• Specialized Material & Structural Design：The fuse body uses high-temperature-resistant ceramic insulation sleeves (withstand temperature ≥1200℃) and hermetically sealed arc-extinguishing medium, ensuring no gas leakage or insulation breakdown even in extreme conditions (e.g., high humidity, dusty environments).
• Reliable Overvoltage Suppression：Integrates a built-in voltage-clamping component (matching with high-voltage arresters in the system), which suppresses transient overvoltage generated during fuse blowing, avoiding insulation damage to adjacent equipment caused by overvoltage.
• Precise Action & Anti-Misoperation：Adopts a temperature-compensated fuse element design, ensuring accurate action within the rated current range (action error ≤±5%) and preventing false tripping due to temperature fluctuations or normal load current surges.
• Easy Monitoring & Maintenance：Equipped with a mechanical striker or electronic signal output terminal; when the fuse blows, it can trigger an alarm or interlock signal in real time, enabling operators to quickly locate faults. The modular design allows for fast replacement (installation time ≤5 minutes) without disassembling the entire high-voltage cabinet.

Main parameters

• Rated voltage: 7.2~40.5kV
• Rated current: 100~300A
• Rated short-circuit breaking current: 63~200kA