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Gwamnati na Ƙaikai Don Mafi Inganci a Fannoni SF6 Ring Main Units (RMUs)

Solutions Na Farko Masu Kalmomi a Cikin SF6 Ring Main Units (RMUs)

Zaɓi ƙarfin gwamnata cikin RMUs na tsakiyar da ƙarfin da ita ce mai yawa a ƙungiyar. Wannan take taimaka waɗanda suka fitowa masu kalmomi a cikin gwamnati daɗi, kuma ta bayyana hanyoyin da za su iya amfani da su:

I. Hanyoyin Gaba Da Yawan Samun Gas Duk Farko

  • Alamar & Inganci:
    • Samun gas SF6 ya gaba da ƙarfi (yanayi na ƙarfi ta zama da ƙarin da 30% idan ci ƙarfe ta haɗa zuwa 0.4MPa).
    • Abubuwan da ake samu daga ƙaramin gas (misali SF4, SOF2) suna nuna ƙarfin da ke da ƙarfi ga ƙarshen mutane.
  • Hanyoyin Daɗi:

Babbar Bincike

Standard

Tsawon / Hikima

Bincike Tashoshin Samun Gas

DL/T 1145

Tafakura ta shekarar + Binciken daɗi a kan ranar ranji

Bincike Dual-Channel Density Relay

IEC 62271

Kula da ƙarfi na bincike a lokacin (0.55MPa a 20°C)

Gaba Da Jirgin Ƙarshen Da Ta Ƙare

GB/T 11023

Yana amfani da O-rings na fluororubber + ƙarshen da ta ƙare

Hanyoyin Daɗi Da Ƙarshen

Q/GDW 1799.2

Tafakura ta ruwan shekarar (da ƙarshen da ta ƙare)

II. Hanyoyin Gaba Da Kalmomin Ƙarshen

  • Ƙalumomin Ƙarshen:
    • Ƙarshen ya ƙara/ya ƙare (80% ya faruwa saboda karamin yanayi).
    • Micro-switch ya faruwa.
    • Ƙarshen ya faruwa/ya ƙare saboda yanayin da ya faruwa a ƙarshen na biyu.
  • Hanyoyin Amfani Da Ƙarshen:
    • Tafakura Ta Ruwan Shekarar:​ Ana ƙunshi abubuwa uku: 1) Ƙarshen da ta ƙare da ƙarshen da ta ƙare; 2) Bincike ƙarshen na yanayi. Wannan tana ba ƙarin ƙarfin da za a iya ƙara ƙarshen da ta ƙare.
    • Binciken Daɗi:​ Ana ƙunshi abubuwa uku: 1) Bincike alamar yanayin da ta ƙare; 2) Bincike ƙarshen na yanayi. Wannan tana ba ƙarin ƙarfin da za a iya ƙara ƙarshen da ta ƙare.
    • Binciken Daɗi:​ Ana amfani da abubuwan da za su iya amfani da su don ƙara ƙarfin binciken, misali ƙarshen da ta ƙare da ƙarshen na yanayi. Wannan tana ba ƙarin ƙarfin da za a iya ƙara ƙarshen da ta ƙare.

III. Hanyoyin Gaba Da Yawan Ƙarfi & Yawan Ƙarshen

  • Hanyoyin Daɗi:
    1. Gaba Da Ƙarfi:
      • Amfani da RTV coating wajen ƙarshen (ta ƙara ƙarfi da ƙarin da 40%).
      • Gaba da ƙarshen na porcelaine da ƙarshen na silicone rubber (ƙarshen na ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ƙarin da ......
    2. Ƙarshen Da Ta Ƙare:
      Heat Dissipation Power = 6.5×10⁻³×(T_cabinet - 25)³ // Optimization Measures:
  1. Fitowa fans na IP55 a ƙarshen (yanayi ya haɗa zuwa 8℃).
  2. Amfani da ƙarshen na silver plating kafin fitowa ƙarshen na copper (yanayi ya haɗa zuwa 35%).
  3. Fitowa heat pipe radiators a ƙarshen na contact.

IV. Hanyoyin Gaba Da Yawan Ƙarshen & Maintenance (O&M) System

Technology Module

Function Implementation

Benefit

UHF Partial Discharge (PD) Monitoring

Captures 300MHz-1.5GHz signals

Provides 3-month early warning for insulation defects

Pressure Cloud Map Analysis

Leakage prediction based on temperature compensation

Increases leak location efficiency by 70%+

Mechanical Life Assessment

Stress analysis based on cumulative switching operations

Achieves >90% mechanism failure prediction rate

Validation via Typical Case

Ba a yi hanyoyin wannan a State Grid 220kV substation ba:
▶ Annual SF6 leakage rate dropped from 0.8% to ​0.05%.
▶ Number of mechanical failures decreased by ​82%​ (from ​2021 to 2023).
▶ Peak temperature rise reduced from ​75K to 48K​ (IEC 60298).

Key O&M Implementation Points

  1. Establish a full life-cycle equipment database (including spare parts life warnings).
  2. Promote live detection techniques to replace scheduled outage testing.
  3. Deepen the application of Condition-Based Maintenance (CBM) decision systems.
08/13/2025
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