Cúram Cumaisch Chruinn: Réiteach Anró-Chuimsitheach Iartharach Trandormálaire Digiúil Reatha Dha-Rátúil

Achoimre na Réiteach:​​
Is réiteach CT Reatha Amuigh (CT) forleathan é againn a chomhshluaiteann Seiceáil Difrinn Rátaí le Aonad Comhdhúcháin Digiteach (MU) chun tomhas corantáin adapatúil, ardréasúil a sholáthar do chomhshaoil fuinnimh dianmhaith mar ionaidte iompraíocht athnuachán. Tosaíonn an córas seo a oireann don IEC 61850 trádáil tradisiúnta eolas/réasúnachta trí aontú scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna sc......

Achoimre na Réiteach:​​
Is réiteach CT Reatha Amuigh (CT) forleathan é againn a chomhshluaiteann Seiceáil Difrinn Rátaí le Aonad Comhdhúcháin Digiteach (MU) chun tomhas corantáin adapatúil, ardréasúil a sholáthar do chomhshaoil fuinnimh dianmhaith mar ionaidte iompraíocht athnuachán. Tosaíonn an córas seo a oireann don IEC 61850 trádáil tradisiúnta eolas/réasúnachta trí aontú scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna scileanna sc......

​Bhriseadh Téicniúil Bhearnach​

1. ​Croí Seiceála Difrinn Rátaí​
• ​Nuálacht:​​ Windings ilchroí a shuíomh go hionrach le rátaí 200:5 agus 1200:5 i gcorp CT amháin.
• ​Taomaitheacht:​​ Roghanna rátáil á rialú trí an MU.
• ​Aonad Comhdhúcháin Digiteach (MU) Ardréasúil​​
• ​Réasúnachas:​​ Tosaíonn sé ar <0.2S Class (de réir IEC 60044-1/IEC 61869) do chosaint tomhas (ANSI C12.1) agus scileanna cosanta (IEEE C37.90).
• ​Output:​​ Luachanna samplaigh nádúrtha IEC 61850-9-2 LE tríd Ethernet.
• ​Calibration:​​ Próiseáil síneacha digiteach a chompenseann don éilimh fás & neamh-líníocht.

​Gnéithe Príomha & Forbairtí​

• ​Difrinn Rátaí Gan Teorainn:​​ Athraigh go sothúil idir 200:5 (brú íseal/ardshinsíoch) agus 1200:5 (corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant corant cor............

​Cur i bhFeidhm: Cás Úsáide Fuinnimh Athnuachán​

• ​Scéim:​​ 200 MW Solar/Wind Farm connection to 138kV substation. Fault currents range from near-zero (offline inverters) to 30kA+ (full output grid fault).
• ​Challenge:​​ Conventional CTs compromise accuracy at low current (200:5 needed) but saturate at high fault currents (1200:5 needed).
• ​Our Solution:​​
1. Install dual-ratio CTs at point of interconnection (HV bus/circuit breaker).
2. During normal operation (<50% load), MU selects 200:5 ratio – capturing granular data for precise energy accounting and flicker monitoring.
3. Upon fault detection (rapid current rise), MU auto-switches to 1200:5 ratio in <5ms – preventing saturation, maintaining accuracy, and enabling relays to clear faults reliably.
4. Sampled values transmitted digitally via 9-2 LE to protection relays, meters, and SCADA – eliminating analog wiring errors and converter delays.

​Cén Fáth go Bhfuil an Réiteach seo Rathúil​

• ​Eliminates Saturation Risk:​​ Maintains accuracy across 100:1 dynamic range (e.g., 30A to 3000A primary).
• ​OPEX Savings:​​ Remote configuration/ratio switching reduces site visits.
• ​Safety Boost:​​ Digital isolation replaces dangerous CT secondary opens.
• ​Data Integrity:​​ Digital output avoids signal degradation from EMI/RFI.
• ​Compliance Ready:​​ Designed to meet IEEE 1547-2018 fault ride-through requirements for renewables.