Power Transformer, AIS, GIS
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Sieyuan Toshiba's Oil-Immersed Power Transformer is designed and manufactured with Toshiba's core technology, covering voltage ratings up to 750kV. It features low losses, low noise, minimal partial discharge, and high short-circuit impedance, making it suitable for diverse installation environments and demanding operating conditions.
Sieyuan has more than 50 years of manufacturing experience of Circuit Breakers & Disconnectors, All products have completed a full set of type tests by third-party authoritative verification agencies from domestic and abroad(Including CESI, KEMA, etc.). Live tank or dead tank SF6 Circuit Breaker, up to 500kV, rated short circuit breaking current up to 63kA, spring mechanism, single-pole or triple-pole operating. Disconnectors with centre-Break, Double-break, Pantograph, Semi-pantograph, Knee-type, up to 800kV, rated short circuit breaking current up to 63kA, with Grounding switch, and with manual or motorized operating mechanism.
All Current & Voltage Transformers manufactured by Sieyuan have completed a full set of type tests by third-party authoritative verification agencies from domestic and abroad(Including CESI, KEMA, etc.), and have access to the United Kingdom, Brazil, Italy, Mexico, Chile, and other overseas market certificates. Oil or gas insulated CT, up to 550kV, 4000A, 63kA, up to 9 secondary coils, Aluminum casting shell base and junction box. PT capacitive or inductive type, oil or gas insulated, up to 550kV, for Capacitive VT up to 1000kV, with highest accuracy class of 0.1, can be used for carrier wave communication.
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