The LFS-10 Current Transformer is an indoor cast resin product designed for AC power systems with a frequency of 50Hz and a rated voltage of up to 10kV. It features a fully enclosed epoxy resin structure, providing excellent insulation, moisture resistance, and durability. With high accuracy for current and energy measurement, along with superior thermal stability to withstand short-circuit impacts, the LFS-10 ensures reliable performance for metering and relay protection in modern power systems.

LFS-10 Current Transformer Type designation

The model designation reflects the key features of these current transformers:

• L: Indicates “Voltage Level” (kV).
• F: Denotes “Handcart Type.”
• S-10: Represents “TAP Complex.”
• Current Transformer: Identifies the device as a current transformer.

This clear designation ensures straightforward identification of the product’s structure and technical specifications.

LFS-10 Current Transforme Service conditon

• Altitude: ≤1000m
• Temperature: -5°C to +40°C
• Humidity: ≤80% at 20°C
• Environment: Free from harmful gases, chemicals, or pollutants that could damage insulation.
• Operational Stability: Designed for stable operation without chattering or impac

LFS-10 CT Technical Parameters

The LFS-10 Current Transformer is engineered for 10kV systems, accommodating primary currents from 5A to 1000A. It features multiple accuracy options (0.2S, 0.2, 0.5, 10P10, 10P15) and supports short-time thermal currents up to 63kA and dynamic currents up to 130kA, ensuring dependable performance for measurement and protection tasks.

Rated Primary Current (A)	Accuracy class combination	Rated Output (VA)					Rated Short-time Current (kA/1s)	Rated Dynamic Current (kA)
		0.2S	0.2	0.5	10P10	10P15
5-100	0.2S/0.2S 0.210.2 0.2S/10P10 0.2/10P10 0.5/10P10 0.2/10P15 0.5/10P15	10	10	10	15 15 15 20	15	100|1n	250|1n
150							13.5	34
200							18	45
300							27	67.5
400							36	90
500							45	112.5
600
750					20		63	130
800~1000

Customization and Support: We offer flexible customization for the LFS-10 CT, including tailored current ratios, improved outputs, and solutions for unique environmental conditions. Contact us to craft a transformer tailored to your specific requirements.

Outline and Dimensions of Installation

• Troubleshooting Techniques for Burnt Voltage Transformers
• Error Analysis and Maintenance of Current Transformers in Power Systems
• Analysis and Troubleshooting of Common Issues with Current Transformers
• Causes and Solutions for False Fault Alarms in Zero-Sequence Current Transformers
• Zero-Sequence Current Transformers vs. Standard Current Transformer
• Fault Handling Considerations for Current and Voltage Transformers