777VA-03

Protection relays and systems are devices that monitor the performance and functioning of electrical equipment with the main purpose of avoiding problems with the electric system, such as the overload or short circuit. The 777VA-03 application field and working principle is one of these system.This product from 777VA is a relay for electric distribution systems that offers protection of 3-phase systems, helping to reduce equipment maintenance and operating cost.The 777VA-03 application field and working principle are based on a microcomputer-based, high-speed electronic protective relay for monitoring the voltage, current, and frequency of 3-phase systems in one combined unit. These relay systems detect different types of faults, such as overloads, short circuits, and phase disparities.These relay systems have the ability to detect and locate faults on the system, analyse disturbances and for the purpose of automatic switching of circuit breakers. The 777VA-03 relay system adds the capability of analysing and finding the exact type of fault, so that the maintenance tasks can be managed in a much more efficient way, as well as the cost associated.The 777VA-03 is designed to offer protection against different kinds of over current situations. With an added flexibility this device has the ability to accommodate a wide range of current transformers and/or voltage transformers so that it can be used successfully in a wide variety of applications.This protective relay comes equipped with advanced features such as phase comparison and load control. With this functionality the system provides a complete protection solution for three-phase systems, and users are able to detect problems such as load imbalances, over and under voltage, phase reversal, and phase loss of one of the phases.It also has an advanced phase sequence recognition feature, which ensures the correct system operation and allows for automatic switching of the circuit breakers in abnormal conditions. This product includes multiple communication protocols (such as Modbus, DNP3 and IEC60870) which allows remote monitoring of the system.The 777VA-03 application field and working principle also provide protection for machines and equipment even when connected to a three-phase system. It has overload detection capabilities which allow it to sense any interruption or disruption of power supply, and it has the ability to prevent machines from operating if any dangerous conditions are detected.This device is equipped with an advanced control system for safety and fault detection that is designed to stop the overloading of machines and for improved productivity. It has the ability to detect and isolate faults due to overcurrent or ground faults, as well as power outages.In summary, the 777VA-03 application field and working principle is a very useful device for 3-phase systems. It has multiple monitoring and protection capabilities to detect and identify faults, it also comes with a range of functionalities to ensure safe and reliable performance and operation.

777VA-02	Littelfuse I...	317.13 $	1000	3-PHASE OVLD RELAY/ RD1 M...
777VA-03	Littelfuse I...	317.13 $	1000	3-PHASE OL RELAY/ 190-480...