Products Relays

T-PRO 8700 Transformer Protection Relay

T-PRO 8700 Data Sheet T-PRO 8700 Manual T-PRO 8700 Ordering Template Application notes Software 4000 Offliner Release Description T-PRO 8700 RTDS Certificate

The T-PRO 8700 provides complete transformer fault and overload protection, DFR quality fault oscillography, sequence of event logging, trend recording, transformer monitoring and overload early warning (TOEWS) in a fully integrated protective relay solution.

Protection

• 5 sets of CT inputs for differential protection
• Software control compensates current magnitude and angle
• Protection functions include IEEE devices 87, 87N, 49, 67, 50/51, 50N/51N, 24INV/DEF, 59N, 60, 81, THD, 27, Temperature Control and TOEWS©
• ProLogic - 10 control logic statements
• Asset management to maximize use of transformer capacity (ANSI/IEEE C57.91-1995)

• High quality recording - fault recording (96 samples/cycle), 30 to 600 day load trending and event logging (1 ms)
• Adaptive overload - auto-adjust overload characteristics based on temperature
• Controlled load management
• Transformer Overload Early Warning System (TOEWS ©) with predictive 15 and 30 minute alarms
• Through fault monitoring

• Direct-connect DNP3 and Modbus SCADA communication protocols
• Three communication RS-232 ports
• IRIG-B time stamping and sample synchronization
• Standard 10 Base T Ethernet Port
• Optional internal modem

• Easy to use, simplified relay setting and record analysis software (Windows® 2000/XP) included
• Intuitive ASCII-terminal interface provides full local or remote access