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
• Robust static design
• Auxiliary DC supplymonitor
• 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
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
• Robust static design
• Auxiliary DC supplymonitor
• 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