The XA10 protection relay is designed to ensure safety and reliability in medium-voltage radial networks, offering advanced protection for lines, power transformers, and rotating machines.
Reliable Earth Fault Protection
- In systems with solidly grounded neutral, XA10 provides effective protection against earth faults on lines of any length.
- In systems with isolated neutral or neutral grounded through Petersen coil and/or resistor, it ensures protection on short lines, preventing unwanted tripping caused by capacitive current contributions during external faults.
Advanced Protection Functions
In addition to phase overcurrent and residual overcurrent protection, XA10 includes:
- Minimum current protection
- Negative sequence overcurrent
- Inverse/positive sequence current ratio monitoring
- Thermal image protection for lines and transformers
- Thermal image protection for motors and generators
- Restricted earth fault protection (low impedance)
- Rotor lock detection and maximum number of motor starts
Monitoring and Control
XA10 integrates advanced system management features:
- Breaker trip circuit supervision and failure detection
- Automatic reclosing with selectable reclosing sequences
Flexibility and Communication
- Expandable logical inputs and output relays via optional external modules
- Communication interfaces supporting Modbus® RTU/TCP, IEC60870-5-103, DNP3, and IEC 61850 protocols
Thanks to these features, XA10 is a multifunction relay ideal for customized management of electrical networks, meeting modern requirements for monitoring and control.
