**Brand: ROCKWILL** >66kV transmission substations, medium & small solar/wind farm booster stations, industrial heavy power supply, compact urban substations, projects where voltage measurement can be arranged externally.
With the development of the power industry, the miniaturization of power equipment is the trend of future development and also the urgent need of current power users. Miniaturized electrical equipment can not only save and and civil engineering costs, etc., but also reduce the use of greenhouse gas SF6, meeting the requirements of the environmental protection situation. Combining years of high-voltage electrical design experience and absorbing the world's most advanced technical design concepts, our company has developed the latest generation of gasinsulated metal composite combined electrical appliance (HGIS). This combined electrical appliance has a compact structure and is particularly suitable for urban and mountainous substations. It is also the best choice for the renovation of old substations. In addition, this product is also very suitable for 40.5kV digital substations and can be used as digital electrical equipment.RHP-72.5 is ROCKWILL segregated-tank hybrid gas insulated switchgear (HGIS) rated at 72.5kV, complying with IEC 62271-203, IEC 62271-100, IEC 62271-102, GB/T7674 and KEMA type tested. It adopts self-blast SF6 circuit breaker with bistable spring or spring-hydraulic operating mechanism. Available rated current:1600A,2000A,2500A,3150A; rated short-circuit breaking current:25kA,31.5kA,40kA. CB, DS, ES and CT are enclosed in separated SF6 metal tanks while main busbar uses air insulation. This standard version has no built-in PT; voltage transformer can be configured as optional RHP-72.5+PT variant. It features independent gas compartments, compact layout and factory pre-testing, widely used in 66kV transmission substations, renewable energy booster stations and urban power grid projects.
La tension couvre 40,5 kV-145 kV et est adaptée à des scénarios tels que les centrales électriques, les postes de transformation, les chemins de fer, les ports, etc. Elle est particulièrement adaptée aux projets limités en espace tels que les postes de transformation urbains/montagnards, la rénovation des anciennes stations et les postes de transformation sur toit/mobiles.
Les unités principales modulaires à cuve de gaz présentent une fiabilité élevée avec une durée de service sans maintenance pouvant atteindre 25 ans. Le taux de fuite annuel de SF₆ est ≤ 0,5 %. La durée de vie mécanique atteint 6 000 manœuvres. Seule la partie des jeux de barres de type ouvert nécessite une inspection régulière. La charge de maintenance globale est bien inférieure à celle des AIS traditionnels. Pour les altitudes supérieures à 1 000 m ou les zones de froid extrême à -40 °C, veuillez nous consulter pour des mesures d'isolation sur mesure ou anti-liquéfaction.
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