SIEMENS SIPROTEC 7UT82 TRANSFORMER DIFFERENTIAL PROTECTION RELAY
Product Details:
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Product Description
SIEMENS SIPROTEC 7UT82 Transformer differential protection relay
The transformer differential protection SIPROTEC 7UT82 is auniversal protection, control, and automation device on the basis of theSIPROTEC 5 system. It is specially designed for the protection two windingtransformers. It is the main protection for the transformer and contains manyother protection and monitoring functions. The additional protection functionscan also be used as backup protection for protected downstream objects (e.g.cables, line).The device supports all SIPROTEC 5 system characteristics. Itenables future-oriented system solutions with high investment security and lowoperating costs. Main function:1 Differential protection (standard- orautotransformer) with add-on stabilizations; Up to 2 differential ground-faultprotection Useful measuring point:2 three-pole current measuring points 2one-pole current measuring points Inputs and outputs:-1 predefined standardvariant with 8 current transformers, 7 binary inputs, 7 binary outputs Hardwareflexibility: The 1/3 base module is available with IO103, it is not possible toadd 1/6 expansion modules, available with the large and small display. Width ofhousing:1/319''
All functions can be configured freely with DIGSI 5. For theapplication of some of the functions, you require the appropriate number offree function points within the device. The function point calculator in theonline configurator provides support in determining the required number offunction points for your device.
FURTHER FUNCTIONS
- Transformer differential protection for two-winding transformers with versatile, additional protection functions
- Transformer differential protection for phase-angle regulating transformers of the single core type
- Universal usability of the permissible measuring points
- Applicable from average up to extra-high voltage
- Protection of standard power transformers, auto transformers and motors
- Increased sensitivity with near-neutral-point ground faults through a separate restricted ground-fault protection
- Flexible adaptation to the transformer vector group
- Controlling closing and overexcitation processes
- Safe behavior in case of current-transformer saturation with different degrees of saturation
- Adaptive adaptation of the operate curve to the transformer tap position
- Arc protection
- Graphical logic editor to create powerful automation functions in the device
- Single line representation in small or large display
- Integrated electrical Ethernet RJ45 for DIGSI 5 and IEC 61850 (reporting and GOOSE)
- Up to 2 optional pluggable communication modules, usable for different and redundant protocols (IEC 61850, IEC 60870-5-103, IEC 60870-5-104, Modbus TCP, DNP3 serial and TCP, PROFINET IO)
- Serial protection data communication via optical fibers, two-wire connections and communication networks (IEEE C37.94, and others), including automatic switchover between ring and chain topology
- Redundancy protocols PRP and HSR
- Cyber security to NERC CIP and BDWE Whitepaper requirements
- Time synchronization using IEEE 1588
- Phasor Measurement Unit (PMU)Â for synchrophasor-measured values and IEEE C37.118 protocol
- Powerful fault recording (buffer for a max. record time of 80 sec. at 8 kHz or 320 sec. at 2 kHz)
- Auxiliary functions for easy tests and commissioning
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