Overview

The BE1-59NC relay provides sensitive protection for capacitor banks.

Features

• Sensing circuit rejects harmonics and noise to achieve higher

sensitivity to 50/60 Hz neutral voltage.

• Includes an early warning alarm output on minor unbalances such as a

blown fuse.

• Can be set to trip when voltage across any capacitor exceeds 110% of

nominal.

Benefits

• Helps avoid cascading capacitor failures.

• Minimized PT costs as a result of low sensing burden.

• Reduced battery load with low burden power supply.

• Accurate, repeatable, and reliable operation.

• Simple HMI provides clear and intuitive settings for easy

configuration.

• LED targets provide clear annunciation of status.

• Easily perform in-case system and device tests using test plugs.

BE1-59NC Neutral Overvoltage Relays provide sensitive protection for

capacitor banks. There are three common types of capacitor bank failures

that BE1-59NC relays recognize. They are:

• Unit dielectric failure

• Capacitor bank insulator failure

• Blown fuses

BE1-59NC relays protect for overvoltage due to internal voltage shifts

that occur as a result of these types of failures.