KEY BENEFITS

>Secure sub-cycle distance protection to improve system stability and increase line loading True Capacitively Coupled Voltage Transformers (CCVT) filter improves

>Distance protection performance without intentional delays or reduced fault coverage

>Superior phase selection algorithm ensures secure high-speed single-pole tripping

>Reliable and secure protection on lines equipped with series compensation

>Large color HMI with metering, event records and control

>Fault and disturbance recording, including internal relay operating signals at up to 128 samples/cycle

>Built-in phasor measurement unit streaming synchrophasors as per IEEE® C7.118

>Increase network availability by reducing failover time to zero through IEC® 62439-3 “PRP” support

>Configurable alarm annunciator eliminates the need for separate annunciator panel

APPLICATIONS

>Overhead lines including series compensated lines and underground cables of various voltage levels

>Single and dual-breaker circuits requiring single/three-pole autoreclosing and independent synchrocheck supervision

>Backup protection for generators, transformers and reactors

>True sub-cycle tripping with CCVT

>Circuits with in-zone power transformers and tapped transformer feeders

>Wide area system monitoring and control using integrated protection and synchrophasor measurement

DOWNLOAD

• Download:D90Plusbrochure_en.pdf

• Download:D90Plusmanule_en.pdf