Fuse Disconnector Switch 1800v DNH1T Series fused disconnect switch

Fuse Disconnector Switch Overview

GRL DNH1T Series Fuse Disconnector Switch are designed to meet the challenges of high voltage applications such as wind power generation by providing reliable and safe circuit protection.

What is fuse switch disconnector?

The DNH1T Series Fuse Switch Disconnector is more than just a device that disconnects a circuit; it is the backbone of a safe and efficient high voltage system.

As voltage levels increase in renewable energy facilities, especially wind power systems, the Fuse Switch Disconnectores integrate seamlessly with 1800V AC networks, ensuring your infrastructure is ready for the future. Capable of handling rated currents from 10A to 100A and providing a 50kA breaking capacity, the DNH1T Series ensures the safety and durability required to manage high-risk, high voltage operations.

What Is the Purpose of A Fuse Disconnector Switch?

A fuse disconnector switch is a critical component used in electrical systems to ensure safety by combining the functions of a fuse switch disconnector and a fuse. Its primary purpose is to isolate a section of an electrical circuit while also providing protection against overcurrents or short circuits. When the fuse detects an overload or short circuit, it interrupts the current, preventing damage to equipment and enhancing system safety. The switch allows operators to disconnect the circuit manually for maintenance or in emergency situations.

In the case of GRL’s DNH1T series fuse isolator switch, it provides both isolation and overcurrent protection, ensuring safe operation in high-voltage systems like wind farms and solar power installations. This type of switch is crucial in maintaining the reliability of power systems by preventing electrical faults from spreading.

Fuse Disconnector Switch Technical Parameters

Fuse Disconnector Switch Key Features

1、High Voltage Capacity

Designed to meet the increasing voltage demands, the DNH1T is an ideal solution for AC 1800V systems, providing a forward-thinking approach for future power systems.

2、Reliable Performance

The DNH1T series can operate reliably within a temperature range of -40°C to 60°C, making it suitable for offshore wind farms, remote industrial areas, and other challenging conditions.

3、Exceptional Electrical Insulation

With an insulation voltage of 2000V and an impulse withstand voltage of 12kV, the DNH1T offers superior protection against electrical surges, ensuring system stability during voltage fluctuations.

4、Enhanced Creepage Distance and Clearance

Designed with longer creepage distances and electrical clearance, the DNH1T ensures greater safety and insulation performance, especially in high-humidity or high-pollution environments.

5、Compact and Flexible Installation

The DNH1T fuse switch disconnector’s compact and modular structure allows for easy integration into both small and large-scale systems. Its flexible installation options make it ideal for use in modern power plants and renewable energy infrastructures.

To complement the DNH1T series Fuse Disconnector Switch, GRL offers a high-voltage fuse specifically designed to provide additional protection for your power systems. This fuse works seamlessly with the Fuse Switch Disconnector, ensuring fail-safe operation in the event of overload or short circuits.

The DNH1T-630/3GU Series Knife-Blade Fuse Switch, fully compatible with AC 1800V systems, supports a maximum current of 100A. It is engineered to efficiently interrupt excess current, protecting both the Fuse Switch Disconnector and the overall system from electrical faults. The fuse’s rapid fault detection and interruption capabilities ensure quick disconnection in the event of an overload or short circuit, safeguarding your equipment and minimizing system downtime. Built with high-quality materials, these fuses are highly durable and offer long service life, even in harsh environments, such as offshore wind farms or remote industrial installations.