SIPROTEC 7UM85
The SIPROTEC 7UM85 generator protection relay is designed specifically to protect generators and power plant units. It contains all necessary main protection functions and a large number of other protection and monitoring functions.
Its modular structure and flexibility, coupled with the high-performing DIGSI 5 engineering tool, allow the SIPROTEC 5 7UM85 to offer future-oriented solutions for protection, control, automation, monitoring, and Power Quality (PQ) basic.
It is also available with EN 60079-14 or Verband der Elektrotechnik, Elektronik und Informationstechnik 0165, Part 1 (ATEX) certification for motors in explosive environments.
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Basic Features
- Typical generator protection functions
- Certification for use in explosive environments (EN 60079-14 or Verband der Elektrotechnik, Elektronik und Informationstechnik 0165, Part 1, ATEX)
- SIL2 certification of hardware and software for generator reverse protection EN 61508
- Certification for use in explosive environments (EN 60079-14 or Verband der Elektrotechnik, Elektronik und Informationstechnik 0165, Part 1, ATEX)
- Short-circuit protection (overcurrent protection, impedance protection, and differential protection)
- Rotor ground-fault protection with different measuring methods (ground current or ground-resistance monitoring)
- High-precision reverse-power protection and universal power protection
- Protection from underexcitation and overexcitation
- Unbalanced-Load and Out-of-Step Protection
- Power-plant disconnection protection
- Universal overvoltage and undervoltage protection with different measuring methods
- Overfrequency and underfrequency protection, frequency change protection and monitoring of dwell time in frequency bands as turbine protection (protection against abnormal frequencies)
- Inadvertent energization protection to detect incorrect activation of the circuit breaker
- Circuit-breaker failure protection
- Point-on-wave switching
- Circuit breaker reignition monitoring
- Up to 4 pluggable communication modules, usable for different and redundant protocols (IEC 61850-8-1, IEC 61850-9-2 Client, IEC 60870-5-103, IEC 60870-5-104, Modbus TCP, DNP3 serial and TCP, PROFINET I/O, and PROFINET I/O S2 redundancy)
- Reliable data transmission via PRP and HSR redundancy protocols
- Extensive cybersecurity functionality (e.g. as role-based access control (RBAC), protocolling security-related events, signed firmware or authenticated network access IEEE 802.1X)
- Provides simple, quick and secure access to the device data via a standard Web browser to display all information, diagnostic data, vector diagrams, single-line diagrams, and device display pages
- Phasor Measurement Unit (PMU) for synchrophasor measured values and IEEE C37.118 protocol
- Captures operational measured variables and protection function measured values for the evaluation of the systems to support commissioning and analyze faults
- Enables powerful fault recording (buffer for a max. record time of 80 sec. at 8 kHz or 320 sec. at 2 kHz)
- Flexible adjustment of I/O quantity structure within the scope of the SIPROTEC 5 modular system