{
    "success": true,
    "data": {
        "id": 1764282,
        "msgid": "understanding-sutet-cables-and-the-sumatra-mass-power-outage-1780144557",
        "date": "2026-05-25 20:08:00",
        "title": "Understanding SUTET Cables and the Sumatra Mass Power Outage",
        "author": "Irvan Sihombing",
        "source": "MEDIA_INDONESIA",
        "tags": "",
        "topic": "Infrastructure",
        "summary": "A mass power outage in Sumatra on 22 May was triggered by a failure in the SUTET transmission network, underscoring its critical role in regional energy stability. SUTET, operating at 500 kV, forms the backbone of Indonesia's high-voltage grid, and its disruption can cause widespread blackouts. Experts emphasise that preventive maintenance and transmission line protection are vital to avoid future incidents.",
        "content": "<p>A mass power outage that struck Sumatra on Friday (22 May) was\nreportedly triggered by a disturbance in the main transmission network.\nOne of the most critical components in this system is SUTET. As the\nbackbone of energy distribution, damage to these lines can have systemic\neffects, paralysing inter-provincial activities in an instant.<\/p>\n<p>SUTET stands for Saluran Udara Tegangan Ekstra Tinggi (Extra High\nVoltage Overhead Lines). Within Indonesia\u2019s power system hierarchy,\nSUTET represents the highest transmission level. According to PLN\nstandards, SUTET operates at 500 kV (500,000 volts), though in regions\nlike Sumatra, the main interconnection system is also supported by SUTT\n(Saluran Udara Tegangan Tinggi or High Voltage Overhead Lines) at 275\nkV.<\/p>\n<p>Technically, SUTET transmits electricity from large power generation\ncentres (such as PLTU coal-fired plants or PLTA hydroelectric plants),\ntypically located far from residential areas, to substations (GI) where\nthe voltage is stepped down for distribution to households.<\/p>\n<p>The use of extra-high voltage in SUTET is not without reason. The\ntechnical analysis of its function is as follows: when a SUTET cable\nbreaks or experiences technical faults, the power system suffers a\nsevere disturbance known as a transient disturbance. The following\noutlines the stages of a mass blackout.<\/p>\n<p>Fixing a blackout caused by SUTET faults is not as simple as flipping\na switch. Technical teams must carry out several complex procedures.<\/p>\n<p>SUTET is a strategic infrastructure that determines regional energy\nstability. A cable break on these lines is not merely a local technical\nissue but a threat to regional power system stability. Preventive\nmaintenance and transmission line protection are key to preventing\nfuture blackouts.<\/p>",
        "url": "https:\/\/jawawa.id\/newsitem\/understanding-sutet-cables-and-the-sumatra-mass-power-outage-1780144557",
        "image": ""
    },
    "sponsor": "Okusi Associates",
    "sponsor_url": "https:\/\/okusiassociates.com"
}