EL731-02-10

Protection relays and systems form an important protective layer in power system. They ensure the safe and reliable operation of the power system by continuously monitoring its conditions and responding to any abnormal situation. The EL731-02-10 is an example of a protection relay. It is a multi-function, three-phase current relay and is designed to provide extensive protection coverage for power systems.

The EL731-02-10 can be applied in many different applications including over-current, over-voltage, and under-voltage protection. This device can also be used for disconnecting circuits, such as motor starters and equipment control. The EL731-02-10 is also used in the protection of sensitive equipment, such as transformers, motors, and generators.

The working principle of the EL731-02-10 is based on the comparison between the measured value of the current, voltage, and frequency and the set values. The relay monitors these values and if they depart sharply from the expected range, the relay trips. The tripping current can be adjusted through the trip adjustments.

The EL731-02-10 offers a variety of advanced protection features. These include adjustable time delay, lockout feature to prevent malicious activation, and remote monitoring capabilities. The device is also capable of communicating via Modbus protocol, which makes it possible to interface the device with other equipment in the system. Furthermore, the adjustable time delay feature allows the user to set the optimum operating time of the device based on the application.

The EL731-02-10 is designed to be a robust and reliable protection device. It has wide operating temperature range and can withstand extreme environmental conditions. This device is also equipped with features that can help to improve its reliability and accuracy. These features include a temperature compensation system, a current resolution of 0.03%, and a frequency resolution of 0.01 Hz.

The EL731-02-10 is a reliable and versatile protection device. It can be applied in a wide range of applications that require protection and can help to ensure the safe and reliable operation of the power system. It is simple to install, setup, and operate, making it an ideal choice for a variety of applications.