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Technical Specifications: Ratio 3600:5; accuracy class 0.2 for metering and 5P10 for protection. Rated for 600V insulation class with a short-time thermal current withstand of 80kA for 1 second.
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Functional Features: Equipped with test blocks for secondary circuit verification without disconnecting the meter. Designed to minimize saturation during high-fault currents to ensure relay accuracy.
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Application Scenarios: Used in utility substations, industrial power distribution centers, and large commercial complexes where precise current measurement is essential for billing and protection coordination.
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Material Composition: Core constructed from high-grade grain-oriented silicon steel laminations to reduce core losses. Epoxy resin encapsulation provides superior dielectric strength and environmental resistance.
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Installation Requirements: Mount securely on rigid bus bars. Secondary wiring must be shielded and grounded at a single point to prevent induced voltages and noise interference.
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Usage Notes: Never open-circuit the secondary winding while the primary is energized, as this can generate lethal voltages. Ensure all unused taps are short-circuited and grounded.