SE-330HV-20-01

Protection relays are devices used to protect electrical power systems from damage due to overloads, short circuits, and other abnormal conditions. The SE-330HV-20-01 is a voltage relay which is used to monitor the three-phase voltage levels of a power system. This device provides protection from undervoltage or overvoltage conditions, and can be used in a number of applications including feeder protection, busbar protection, and generator protection.

The SE-330HV-20-01 operates by sensing both positive and negative phase-to-ground voltages for each phase, compensating for any ground potential differences. The relay is set to trip under a predetermined level of voltage, and also resets automatically when voltage returns to normal conditions. The SE-330HV-20-01 can be configured to accept either threephase voltage inputs with a floating ground or two-phase voltage inputs. Configuration is completed through the control settings on the front of the unit.

The SE-330HV-20-01 can be used in a variety of applications including industrial control systems, power distribution systems, and motor control. This voltage relay offers a cost effective solution to protecting power systems from overvoltage and undervoltage conditions. With its ability to accept either a three phase or two phase input, the SE-330HV-20-01 can be used in a wide variety of applications. Additionally, this device is protected by a metal case to guard it from dust and moisture.

The SE-330HV-20-01 uses a non-linear relay curve to accurately detect voltage irregularities. The relay is set to trip under a predetermined level of voltage, and also resets automatically when voltage returns to normal conditions. To provide further protection, the relay features a delayed alarm timer to detect voltage irregularities that may have gone unnoticed. This delayed alarm timer also helps to prevent nuisance and false tripping if the voltage levels fluctuate slightly.

To maximize flexibility, the SE-330HV-20-01 can be configured to suit specific application requirements. Settings can be adjusted in the device’s setup menu in order to set thresholds for the undervoltage and overvoltage alarms. Additionally, this device offers a range of operator options, allowing users to set the notification and alarm behavior of the relay, such as the delay timer, pulse width, and alarm type.

Overall, the SE-330HV-20-01 is an ideal solution for protecting power systems from overvoltage or undervoltage conditions. With its ability to be easily configured, and its robust design, this voltage relay is a highly cost effective and reliable solution for application fields such as industrial control systems, power distribution systems, and motor control.