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MiCOM Alstom P74x

Mã sản phẩm: MiCOM Alstom P74x
Nhà Sản Xuất:

Alstom Grid

MiCOM Alstom P74x (P741,P742,P743):  High Performance Busbar Protection
MiCOM Alstom P74x numerical busbar protection scheme provides complete protection for all voltage levels. One of the fastest and most complete in its class, the MiCOM 74x provides secure and sensitive protection for all types of voltage busbar configurations.

Basic description:

  • Provides secure and sensitive protection for all types of busbar configurations, at all voltage levels
  • Engineered to provide a centralised or a distributed architecture
  • Includes CT saturation detection and dynamic topology processing algorithms
  • Fast reset (less than 1 cycle) circuit breaker failure element

Key customer benefits:

  • Interoperable with all classes of CT: IEEE, IEC, air-gapped, non-gapped - and CTs with moderate knee point voltage
  • IEC 61850 redundant Ethernet, supporting self healing ring, RSTP, dual homing or PRP
  • True subcycle busbar protection - transmission class security and dependability

Main characteristics:

  • Typical operating time of 8ms with high speed/high break (HSHB) contacts, 13ms with standard contacts
  • Sensitive earth fault elements improve detection of resistive or arcing faults
  • Phase segregated biased current differential high speed busbar protection
  • Easy maintenance, operation and future expansion of the busbar supported
  • Up to 28 peripheral units supported - scalable busbar solutions from medium to large substations

Overall differentiation factors:

  • Tripping time is constant, always lower than 1 cycle and independent of the fault current, the substation topology and the number of feeders
  • Free of charge software tools for easy scheme monitoring
  • Connection between central and peripheral units is by fibre, eliminating EMC, touch and step potential issues

Models Available:

  • P741 Busbar Central Unit
  • P742 Busbar Peripheral Unit
  • P743 Extended Busbar Peripheral Unit

Features provided by MiCOM Alstom P74x remote HMI tool:
Scheme editor: allows the user to define and create a P74X busbar scheme using busbar, CT, circuit breaker and isolator graphical icons

Synoptic: allows the user to allocate IEDs (P741, P742, P743) to the busbar scheme synoptic.

Dynamic synoptic: allows the user to display the P74x measured analogue quantities and DDB (digital data bus) status information via the user defined P74x scheme created using the scheme editor in accordance with downloaded embedded configuration of P74x IEDs

File merge: with this feature the user can automatically create the synoptic settings from above tools into a default setting file of IEDs

About MiCOM P40 Agile

Alstom’s philosophy is one of continuous improvement in our products and solutions.  Our emphasis on communication in MiCOM has become a focus which secures leadership in the digital substation.  To mark this phase of evolution, the brand “P40 Agile” is applied to the range.  P40 Agile is a mark of performance and quality, proudly available from Alstom, and only from Alstom.

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