The REF615E-E is an ABB-branded relay protection device with multiple functions and applications. The REF615E-E features and functions are as follows:
High-precision measurement: The use of advanced measurement algorithms and sensor technology, can achieve high-precision current, voltage, power and other electrical parameters measurement, for the power system to provide accurate data reference.
Protection and control functions: with a variety of protection and control functions, such as over current protection, quick break protection, overload protection, etc., can make quick and accurate protection actions for different fault types. At the same time, it can also control the remote control of medium voltage feeders and switch status monitoring.
Intelligent man-machine interface: equipped with large-screen LCD display and touch screen operation, convenient operation personnel to view data and monitor the status. User-friendly and easy to operate.
Scalability: Supports a variety of communication protocols to facilitate data interaction and integration with other systems. At the same time, it also has multiple expansion slots and interfaces, which can be customized according to the actual needs.
High reliability and stability: Advanced hardware and software design, with a high degree of reliability and stability. Can adapt to a variety of harsh working environment, to ensure long-term stable operation.
Easy maintenance and upgrade: Modular design for easy maintenance and upgrade. At the same time, ABB provides comprehensive technical support and after-sales service to ensure that users receive timely technical support during use.
Protective relay: REF615E-E is a protective relay, with over current protection, quick break protection, overload protection and other functions. It can be used to control and protect various equipment and lines in the power system to ensure the safe and stable operation of the power system.
In summary, the REF615E-E is a powerful, high-performance relay protection device for power systems of all sizes and types.
REF615E-E Relay protection means protection for high voltage systems. REF615E-E The device is mainly divided into two situations: one is when the system fails, the device will operate in the circuit breaker trip, cut out the fault component, so that the system is isolated from the fault part; The other is that when the system occurs abnormal conditions, the device will act in the signal to remind the personnel on duty to check.
Taking over-REF615E-E current relay protection as an example, when A phase A and C short circuit occurs, the primary side of their current transformer will flow through the short circuit current, and the corresponding secondary side current will increase. The two current relays operate, the contacts close, the start time relay, the contacts close after the setting time limit, the REF615E-E signal relay and the trip coil operate at the same time, at this time the circuit breaker trips and sends a signal.
