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MiCOM Alstom P746
P746.jpg
 
MiCOM Alstom P746 centralised numerical busbar protection provides complete protection for all voltage levels up to extra-high voltage busbar configurations.
Proven techniques and dynamic topology processing algorithms offer a combination of security, speed and sensitivity. 
Simple configuration for centralised architectures
 
The MiCOM Alstom P746 differential busbar protection provides a centralised one box or three box architecture and is very simple to use, as it does not need to be deeply engineered and supports easy operation and maintenance of busbars.
 
Basic description:
 
 Complete protection for MV and HV busbar configurations with up to 2 zones and 18 feeders 
 Suitable for scheme engineering by any integrator - no pre-engineering, no engineering hours payable to Alstom
 
Key customer benefits:
 
 Use one box for schemes up to 6 feeders, and 3 boxes (one per phase) for larger schemes up to 18 feeders 
 Interoperable with all classes of CT: IEEE, IEC, air-gapped, non-gapped - and CTs with moderate knee point voltage 
 10 integrated function keys, tri-colour LEDs, and graphical programmable logic permit the creation of comprehensive schemes, tailored to your needs 
 IEC 61850 redundant Ethernet, supporting self healing ring, RSTP, dual homing or PRP
 
Main characteristics:
 
 Typical operating time of 12 ms with high speed/high break (HSHB) contacts or 17 ms with standard contacts 
 Phase segregated biased current differential high speed busbar protection 
 Easy maintenance, operation and future expansion of the busbar supported 
 Deploy in ring-bus/mesh corners, single busbars, sectionalised busbars, and one per bus in breaker and a half topologies
 
Overall differentiation factors:
 
 Tripping time is independent of substation topology and number of feeders 
 User-friendly software tools for scheme monitoring 
 Inbuilt CT saturation proof breaker failure protection 
 Harsh environment protection extends the life of the product
 
P746 remote HMI PC application software:
MiCOM Alstom P746 remote PC HMI provides the following features:‘Scheme editor’ - the scheme editor allows the user to define and create a P746 Busbar scheme using Busbar, CT, circuit breaker and isolator graphical icons. ‘Dynamic synoptic’- the dynamic synoptic allows the user to display the P746 measured analogue quantities and DDB (digital data bus) status information via the user defined P746 scheme created using the ‘scheme editor’.