6 giu 2023 — Description. The SIPROTEC 7UT85 transformer differential protection device has been designed specifically for the protection of.
SIPROTEC 7UT85 Transformer Differential Protection www.siemens.com/siprotec Description The SIPROTEC 7UT85 transformer differential protection device has been designed specifically for the protection of two-winding transformers (2 sides). It is the main protec- tion for the transformer and contains many other protec- tion and monitoring functions. The additional protection functions can also be used as backup protection for subse- quent protected objects (such as short cables lines, reac- tance coil (shunt reactors)). With its modular structure, flexibility, and the high-performance DIGSI 5 engineering tool, SIPROTEC 7UT85 offers futureoriented solutions for protection, control, automation, monitoring, and Power Quality Basic. Main function 1 differential protection function (standard or auto transformer) with additional stabiliza- tion; up to 2 restricted ground-fault protection functions Interoperability of SIPROTEC 4 and SIPROTEC 5 line protection devices when using the line differential protection function in the 7UT85, 86, 87 Usable measuring points 5 x 3-phase current measuring points, 5 x 1phase current measuring points, 5 x 3-phase and 5 x 1-phase voltage measuring points; expandable to 3 sides Inputs and outputs 2 predefined standard variants with 8 current transformers, 7 to 19 binary inputs, 7 to 23 binary outputs Hardware flexibi- Flexibly adjustable and expandable I/O quan- lity tity structure within the scope of the SIPRO- TEC 5 modular system Housing width 1/3 × 19 inch to 2/1 × 19 inch Applications Protection of special transformers (phase shifters, FACTS and converter transformers, electric arc furnace transformers, HVDC transformers) As backup protection for motor and generator differential protection applications For the protection of short cables and lines SIPROTEC 7UT85 Transformer Differential Protection (1/2 device = standard variant P1) Voltage control for two-winding and three-winding transformers with parallel control As additional line protection function such as distance and line differential protection Functions With the Disconnection of measuring points function, you can disconnect the I-3ph measuring point from a protection function group. If the measuring point has been disconnected, you can perform any work without influencing the work of the protection functions that have been assigned to the measuring point. After disconnection of the measuring point, the differential protection, for example, stops taking the measured values of this measuring point into account for calculating the differential current. DIGSI 5 permits all functions to be configured and combined as required. Transformer differential protection for two-winding transformers with versatile, additional protection functions; expandable to 3 windings Transformer differential protection for phase-angle regulating transformers of the single core type and special transformers Universal usability of the permissible measuring points Applicable from average up to extra-high voltage Modular and flexible Protection of standard power transformers, auto Extensive cybersecurity functionality, such as role- transformers, short lines, cables, shunt reactors and based access control (RBAC), protocolling security-re- motors lated events, signed firmware or authenticated net- Typical properties of a transformer differential protec- work access IEEE 802.1X tion such as flexible adaptation to the transformer Simple, fast and secure access to the device via a vector group, control of inrush and overexcitation pro- standard Web browser to display all information and cesses, safe behavior in case of current transformer diagnostic data, as well as vector diagrams, single-line saturation with different degrees of saturation and device display pages Adaptive adaptation of the operate curve to the trans- Secure serial protection data communication, also former tap position over great distances and all available physical media Increased sensitivity with near-neutral-point ground faults through a separate restricted ground-fault pro- (optical fiber, two wire connections and communication networks) tection PQ-Basic: voltage unbalance; voltage changes: over- Additional current and voltage inputs can be supple- voltage, dip, interruption; TDD, THD and Harmonics ments for standard protection functions, such as over- Capturing operational measured variables and protec- current, voltage frequency, etc. tion function measured values for the evaluation of Arc protection the systems, to support commissioning, and to analyze faults Voltage controller function ANSI 90V for two-winding transformers, three-winding transformers and grid Frequency tracked protection functions over a wide frequency range (10 Hz to 90 Hz) and the option to coupling transformers with parallel control (master/follower, circulating reactive current minimization) assign the protection functions in a single device to different frequency tracking groups. Dynamic Voltage Control (DVC) to adapt the voltage target value via a power direction dependent characteristic curve with strong infeed of regenerative ener- Phasor measurement unit (PMU) for synchrophasor measured values and IEEE C37.118 protocol gies Benefits Graphical logic editor to create powerful automation Safety due to powerful protection functions functions in the device Purposeful and easy handling of devices and software Up to 4 pluggable communication modules, usable for thanks to a user-friendly design different and redundant protocols (IEC 61850-8-1, IEC Highest availability even under extreme environmen- 61850-9-2 Client, IEC 60870-5-103, IEC 60870-5-104, tal conditions by standard coating of the modules Modbus TCP, DNP3 serial and TCP, PROFINET IO, PROFINET IO S2 redundancy) Cybersecurity in accordance with NERC CIP and BDEW Virtual network sharing (IEEE 802.1Q - VLAN) Whitepaper requirements Reliable data transmission via PRP and HSR redundancy protocols Full compatibility between IEC 61850 Editions 1, 2.0 and 2.1 Siemens Smart Infrastructure Electrification & Automation Mozartstraße 31 C 91052 Erlangen, Germany For the U.S. published by Siemens Industry Inc. 100 Technology Drive Alpharetta, GA 30005 United States Customer Support: http://www.siemens.com/csc © Siemens 2020. Subject to changes and errors. For all products using security features of OpenSSL, the following shall apply: This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (www.openssl.org), cryptographic software written by Eric Young (eay@cr yptsof t.com) and software developed by Bodo Moeller.PDF-XChange Standard (9.5 build 366) [GDI] [Windows 10 Enterprise x64 (Build 19044)]