BK/GMD-400-R

Fuses are electrical devices used to protect against overcurrent or short circuit in a circuit, and the BK/GMD-400-R is an example of a fuse. This device is a type of overcurrent fuse that is specifically designed for use on high voltage three-phase AC networks. It is designed to provide protection against both overcurrent and short circuit, and is suitable for use in networks up to 115 kV over an ambient temperature range of -40 to +60 degrees Celsius.

The BK/GMD-400-R is a high voltage fuse that is designed to protect low voltage systems. The typical application field of this device is the distribution of electricity in medium to large residential and industrial applications. It is also suitable for use in telecommunications networks, industry, transportation, petrochemical plants and other high voltage applications. This fuse is also suitable for use in three-phase circuits and in high impedance circuits.

The working principle of this fuse is based on the concept of "thermally induced current limiting". This means that the internal temperature and resistance of the device is proportional to the current that is passing through it. When an overcurrent or short circuit occurs, the device will increase its internal temperature, causing the resistance of the device to increase and the current to decrease. This decrease in current can prevent damage to other components of the circuit, such as the wiring, transformers and circuit breakers.

The BK/GMD-400-R has several advantages over other fuses. It is easy to install and replace, and requires less space than other types of fuses. The device is also highly reliable and its operating temperature range makes it suitable for use in a wide range of applications. Additionally, the device has a long life span and is not susceptible to aging due to environmental factors.

In conclusion, the BK/GMD-400-R is a high voltage fuse that is suitable for use in a variety of applications. This device is easy to install and replace, and is highly reliable. It is also designed to protect against both overcurrent and short circuit, and has a wide operating temperature range. The device is suitable for use in medium to large residential and industrial applications, and is capable of providing protection against overcurrent and short circuit in networks up to 115 kV.