{
  "language": "en",
  "interfaceLanguage": "ar",
  "url": "https://voltformer.com/ar/news/statnett-svenska-kraftnat-commission-hasle-420kv-phase-shifting-transformer",
  "slug": "statnett-svenska-kraftnat-commission-hasle-420kv-phase-shifting-transformer",
  "category": "transformers-grid",
  "publishDate": "2026-09-21",
  "sourceName": "Statnett & Svenska kraftnät Nordic Operations",
  "sourceUrl": "https://www.statnett.no/en/about-statnett/news-and-media/news-archive/hasle-420kv-phase-shifting-transformer-energization-september-2026/",
  "readingTimeMinutes": 4,
  "tags": [
    "Statnett",
    "Svenska kraftnät",
    "420 kV",
    "Phase Shifting Transformers",
    "Nordic Grid",
    "Interconnectors",
    "Transformers"
  ],
  "content": {
    "title": "Statnett and Svenska kraftnät Energize 1,000 MVA 420 kV Phase-Shifting Transformer at Hasle Substation",
    "summary": "To resolve structural power loop flows between southern Norway and western Sweden, transmission system operators Statnett and Svenska kraftnät have energized a 1,000 MVA 420 kV Phase-Shifting Transformer (PST) at Hasle Substation near the national border.",
    "sections": [
      {
        "heading": "Eliminating Loop Flows Across the Nordic Synchronous Area",
        "paragraphs": [
          "Massive wind generation buildouts in northern Sweden often route unscheduled transit electricity southward through Norway’s hydro-rich grid, creating bottlenecks that restrict cross-border trading capacity. The new Hasle PST actively controls power flow across the 420 kV cross-border tie-line.",
          "With a rated throughput of 1,000 MVA, the unit utilizes dual-tank design separating the shunt and series active parts, allowing precise phase angle adjustment up to ±25 degrees without exceeding transformer core flux density limits."
        ]
      },
      {
        "heading": "Unlocking 500 MW of Additional Cross-Border Commercial Capacity",
        "paragraphs": [
          "By steering power directly along contracted contractual paths, Nordic TSOs can safely expand cross-border capacity between price bidding zones NO1 (Oslo) and SE3 (Stockholm) by 500 MW.",
          "The transformer is equipped with online dissolved gas chromatography, optical fiber hot-spot temperature probes, and biodegradable synthetic ester insulating liquid to satisfy stringent environmental protection standards in the surrounding forest catchment basin."
        ]
      }
    ]
  },
  "companies": []
}