High-voltage open CT, generalization and working principle of outdoor open current transformer

The LZKK-10 outdoor epoxy resin poured open-type current transformer represents a significant advancement in high-voltage current transformers, developed by our company in recent years. Constructed using premium imported outdoor resin and cutting-edge vacuum casting technology, this transformer is specifically designed for current monitoring and control applications in 10kV idle line high-voltage reactive power automatic compensation systems. Additionally, it serves as an effective tool for current measurement, protection, and control of medium-voltage overhead lines up to 10kV and below. One of its standout features is the ease of installation without needing to cut the wires; it can even be installed while energized. With attributes like flame retardancy, explosion-proof design, zero maintenance requirement, no risk of leakage, and a substantial safety margin, it also boasts excellent arc resistance, UV stability, anti-aging properties, and a remarkably long service life. This product complies with the stringent standards set by GBl208 and IECl85: • Insulation Level: 12/42/75kV • Rated Current Ratio: 0~1000/5A • Secondary Combination: 10P15/10P15/0.2S • Rated Load: 20–50VA • Creepage Distance: 31mm/kV • Conductor Cross Section: 35–400mm² • Maximum Altitude: Up to 3000 meters • Rated Frequency: 50Hz or 60Hz Designed with both reliability and practicality in mind, the LZKK-10 ensures consistent performance under various environmental conditions. Whether you're working on urban grid upgrades or rural electrification projects, this transformer offers a robust solution that combines durability with precision. Its unique blend of technical innovation and user-friendly design makes it a top choice for modern electrical systems where safety, efficiency, and cost-effectiveness are paramount.

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