1618067-8

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Protection relays and systems are used to protect electrical systems from malfunctions, both in residential and commercial applications. The 1618067-8 model of protection relay is designed to detect and protect against single-phase current and power losses, thereby helping to ensure the reliability and safety of electrical systems.

This model of relay provides protection against overcurrent, overload, and out of phase current on all of its four poles. It is also capable of detecting and reacting to inconsistences in the amplitude of the current waveform as well as detecting when neutral current exceeds the set value. It is equipped with three independent overcurrent and three overload relay time delays, allowing it to react to faults over a range of short-permit and long-period conditions.

The 1618067-8 operates on the principle of current, voltage and (if present), frequency measurements. The current and voltage measuring inputs are designed to measure the current on each of the line terminals and the voltage between each line terminal and neutral. Frequency is measured by the average values of current and voltage over a short period of time. These measurements are compared against values programmed into the relay, and if the current, voltage or frequency surpasses the set limit, it is flagged as a fault and the device will trip.

The 1618067-8 has a built-in anti-aliasing filter, commonly known as a “smooth filter”, which serves to reduce transients that can cause false trips. The filter also helps to reduce radio frequency interference and other system abnormalities from entering the relay. Furthermore, the device is constructed with an LCD display to visually display all of the relay parameters and settings. Additionally, a local reset push button is provided for manual resetting of the relay after a fault or trip.

The 1618067-8 offers a range of functions designed to ensure robust current and power protection. These functions include overcurrent protection, selectable overcurrent current element, adjustable time delay, adjustable voltage pick-up, as well as adjustable undervoltage and frequency protection. This model of protection relay is conveniently packaged in a small and lightweight housing, allowing for easy installation and maintenance in tight spaces.

The 1618067-8 is designed to ensure reliable protection of commercial and industrial electrical systems. It is an ideal choice for applications such as water treatments, energy management, industrial control systems, and motor protection, as its reliable detection and protection capabilities are able to provide a high level of system safety and reliability.

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