SIPROTEC 7VH60
High-impedance differential protection relay
Description
The SIPROTEC 7VH60 relay is designed for fast and selective differential protection based on the high-impedance circulating current principle. It is used for the protection of machine stator windings, busbars and transformer and reactor windings against phase-to-phase and phase-to-earth short-circuits.
As an option, the relay includes a bus-wire supervision and the differential function can be blocked by a binary input.
Function overview
Functions
Robust static design
Auxiliary DC supply monitor
Fast operating time (15 ms)
Simple pickup voltage setting by resistors through shorting links
LED alarm indicator
Option "Bus-wire alarm" (supervision)
Option "Blocked external" by binary input
Wide-range auxiliary power supply
Latched trip contact (lockout function). Reset by binary input.
Adjustable max. voltage pickup setting by a jumper between 60 V or 240 V