Description
The FICO FCT-RT is a high-durability, indoor current transformer characterized by its distinctive cylindrical “Round Type” body and horizontal primary stud terminals. Built using premium vacuum-cast epoxy resin, this CT is engineered for high-accuracy current transformation in medium-voltage environments. Its streamlined, symmetrical design is particularly effective at managing electrical field stress, making it a reliable choice for protection and measurement circuits in industrial switchgear.
Key Features & Technical Specifications
Horizontal Stud Interface: Equipped with robust threaded primary terminals extending from both sides, allowing for secure inline connection with primary conductors.
Superior Protection Accuracy: Rated at Class 5P20, ensuring the transformer maintains accuracy even during faults up to 20 times the rated current—essential for reliable protection relay operation.
High Dielectric Strength: Features a maximum system voltage (Um) of 12 kV and a certified insulation level of 12/36/95 kV, offering high resistance against electrical surges.
Thermal & Mechanical Stability: Rated for a Short-Time Thermal Current (Ith) of 20 kA for 1 second, allowing it to withstand extreme electromagnetic forces during short circuits.
Technical Ratings:
Primary/Secondary Ratio: 400/5A
Rated Output: 15 VA
Frequency: 50 Hz
Standards Compliance: Fully compliant with IEC 61869-1/2, meeting global benchmarks for instrument transformer safety and design.
Rugged Epoxy Build: The non-hygroscopic epoxy resin casting provides a moisture-proof and dust-resistant exterior, ensuring long-term maintenance-free operation.
Secondary Terminal Interface: Features a dedicated secondary terminal block (1S1-1S2) located at the base for easy integration into control and monitoring systems.
Safety Protocol: To ensure personnel and equipment safety, one secondary terminal must be earthed during operation. Never open the secondary circuit while the primary current is flowing to prevent hazardous high-voltage buildup.
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