LSY-10 Three-Phase One series Current Transformer
Product Functions
This specialized transformer is engineered to perform dual critical functions simultaneously. It measures the three-phase current sequence (200-400-600A) for accurate load monitoring, energy metering, and phase-specific overload protection in three-phase circuits. It integrates a dedicated core for detecting zero-sequence current (20A), enabling immediate identification of insulation faults, leakage currents, or ground faults. This dual functionality allows for comprehensive system oversight, balancing, and rapid fault isolation from a single installation point.
Applicable Environment
The LSY-10 is ideal for applications requiring consolidated monitoring and protection in compact spaces. It is perfectly suited for installation in motor control centers (MCCs), power distribution cabinets, compact substations, and generator protection panels across industrial plants, commercial buildings, and renewable energy systems. Its robust design, capable of operating from -35°C to +55°C, makes it reliable for both temperature-controlled indoor environments and challenging outdoor or industrial settings where space optimization is crucial.
Product Highlights
◆Integrated Dual-Function Design: Combines phase-sequence and zero-sequence measurement in one compact unit, saving space, simplifying installation, and improving system reliability.
◆High Fault Current Capacity: Rated up to 120In to prevent saturation during faults, ensuring accurate relay operation under extreme conditions.
◆Wide Environmental Range: Operates from -35°C to +55℃ and withstands 3kV for 1 minute, ensuring stable performance in harsh climates.
◆Global Compatibility: Supports 50Hz/60Hz systems and 5A/1A outputs for flexible integration with international devices.
◆Certified Quality: Compliant with GB/T20840 standards, guaranteeing accuracy, safety, and reliability for critical infrastructure.