0HEV040.ZXBD

Series:	HEV
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Cartridge, Ceramic
Current Rating:	40A
Voltage Rating - DC:	425V
Response Time:	--
Package / Case:	Cylindrical, Blade Terminal (Bolt)
Mounting Type:	Bolt Mount
Breaking Capacity @ Rated Voltage:	10kA
Melting I²t:	1495
Approvals:	--
Operating Temperature:	-40°C ~ 125°C
Color:	--
Size / Dimension:	0.469" Dia x 2.559" L (11.90mm x 65.00mm)

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0HEV040.ZXBD Application Field and Working Principle

0HEV040.ZXBD, typically referred to as a HV040 High Voltage Fuse (HVF), is a type of electrical protection device that has been designed for the protection of high voltage power distribution systems. The device is designed to detect an overload or short circuit condition in the circuit, and to interrupt the current, thus preventing the damage and potentially saving the equipment and personnel from an electrical hazard.

General Overview

The 0HEV040.ZXBD HVF is composed of several components, including a fuse element, an insulation sleeve, terminals, and a casing. The fuse element is made up of a high voltage wire, typically made of copper. This wire then is connected to two terminals, which consist of a contact block and a contact bridge. The insulation sleeve is placed over the fuse element for safety purposes. Finally, the casing is made out of an insulation material such as porcelain or plastic, which is designed to enclose and protect the other components.

Application Field

The 0HEV040.ZXBD HVF is designed for use in medium to high voltage power system circuits. These systems can include underground or overhead lines, system transformers, emergency systems, high voltage substations, and other high power equipment. The purpose of the HVF is to prevent damage or destruction of these electrical devices should an overload or short circuit occur in the system, providing added security and reliability to the system.

Working Principle

The working principle of the 0HEV040.ZXBD HVF is relatively simple. The fuse element is designed so that when an overload or short circuit occurs in the system, the element will heat up. As the current continues to increase, the heating effect will eventually cause the element to melt or break. This then interrupts the flow of current, and the HVF will disconnect from the system, thereby protecting the equipment from further damage.

Auxiliary Protection

In addition to the main HVF, many systems will also incorporate an auxiliary or backup protection device. This device works in conjunction with the HVF, and provides an extra layer of protection should the HVF fail. The auxiliary device will typically be installed either upstream or downstream from the HVF, and will detect any overload or short circuit conditions that occur in the system. If the HVF does fail, the auxiliary device will be able to detect the fault and interrupt the current, providing additional protection against potential damage.

Conclusion

The 0HEV040.ZXBD HVF is a useful device that can protect high voltage electrical systems and equipment from possible damage due to overloads or short circuits. The device works by heating up and melting or breaking when an overload or short circuit occurs, and interrupts the flow of current. Additionally, many systems will also incorporate an auxiliary protection device, which adds an extra layer of security should the HVF fail. Overall, the 0HEV040.ZXBD HVF provides an invaluable service for high voltage power systems.

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