• LSY Current Transformer
LSY Current Transformer
discuss personally
Model
LSY-200/5
Basic info
Brand Wone Store
Model NO. LSY Current Transformer
Rated frequency 50/60Hz
Power frequency withstand voltage 3kV
Rated current ratio 200/5
Series LSY
Product Detail

Product Overview

Ring Main Unit C-GIS Three-Phase The three-phase CT is full-enclosed in the flame retardant plastic shells, primary bushing or cable can pass through the inner hole, bottom has installation inserts for fixation. It is simple and shortcut, is suitable for measuring current, signal collection and protective relaying in the medium voltage power system of bushing or cable etc

Key Features

  • Integrated Three-Phase & Zero-Sequence Current Measurement:Designed for three-phase bushings in ring main units and pole-mounted switches, enabling simultaneous precise measurement and reliable protection for both three-phase and zero-sequence currents. Ideal for multi-cable loop applications, providing comprehensive monitoring for power systems.

  • High-Reliability Fully Sealed Structure:Core and secondary windings are vacuum-cast with premium epoxy resin into a flame-retardant plastic housing, forming a hermetic seal. Resistant to moisture ingress, ensuring stable performance and maintenance-free operation throughout the lifecycle, minimizing O&M costs and potential failures.

  • Wide Range of Ratios & High-Precision Output:Covers ratios from 75/5 to 800/5, meeting diverse requirements of different power systems and equipment. Classified into multiple types based on ratio, accuracy class, and rated burden. Measurement winding achieves 0.2S accuracy with ≤0.2% ratio error and ≤10' phase displacement from 1%–120% of rated current, ensuring precise metering.

  • Excellent Electrical Performance & Stability:Supports 50Hz/60Hz rated frequency for global compatibility. Secondary current options of 5A/1A for seamless integration with measuring and protection devices. Withstands short-time thermal current up to 40kA/1S and continuous thermal current of 1200% In. Load power factor COS&phi;=0.8 (lagging), instrument security factor (lateral) FS<10, and protection accuracy limit factor up to 10P10/15/20, ensuring reliable operation under complex conditions.

Technical Data

  • Rated secondary current: 5A,1A

  • Power frequency withstand voltage:3kV

  • Rated frequency:   50/60Hz

  • Installation site: Indoor

  • Technical standard:  IEC 60044-1

Specification

 

Know your supplier
Wone Store
Main Categories
High Voltage Electrical Apparatus/Low Voltage Electrical Apparatus/Wire cable/Instrument meters/New energy/Tester/Production equipment/Generator/Electrical fittings/Integrated Electrical Equipment/Instrument Transformer/Equipment Parts
Business Type
Sales
Highest Annual Export (USD)
$300000000
Professional Experience
1 years
Workplace
1000m²
占位
占位
Related Products
Related Knowledges
What is the difference between a dielectric and an insulator?
What is the difference between a dielectric and an insulator?
Dielectrics and insulators are distinguished primarily by their applications. One of the main differences is that a dielectric can store electrical energy by becoming polarized in an electric field, whereas an insulator resists the flow of electrons to prevent current conduction. Other key differences between them are outlined in the comparison chart below.Definition of DielectricA dielectric material is a type of insulator that contains few or no free electrons. When subjected to an electric fi
Edwiin
08/30/2025
Fault Analysis and Treatment of Oil-Immersed Transformers
Fault Analysis and Treatment of Oil-Immersed Transformers
Oil Leakage at Welded JointsOil leakage at welded joints primarily stems from poor welding quality, such as incomplete or detached welds, and defects like pinholes and gas pores. Although oil-immersed transformers are initially coated with solder and paint during manufacturing, potentially masking these issues temporarily, the defects tend to surface during operation. Additionally, electromagnetic vibration can cause weld cracks, leading to oil leakage.To resolve such leaks, the first critical s
Edwiin
08/29/2025
What losses occur during operation of the transformer? How to reduce losses?
What losses occur during operation of the transformer? How to reduce losses?
Transformers experience various types of losses during operation, primarily categorized into two main types: copper losses and iron losses.Copper LossesCopper losses, also known as I²R losses, are caused by the electrical resistance of the transformer windings—typically made of copper. As current flows through the windings, energy is dissipated in the form of heat. These losses are proportional to the square of the load current (I²R), meaning they increase significantly with high
Rockwell
08/29/2025
Cable Fault Detection, Testing, Location and Repair
Cable Fault Detection, Testing, Location and Repair
I. Methods for Cable Testing and Inspection:Insulation Resistance Test: Use an insulation resistance tester to measure the insulation resistance value of the cable. A high insulation resistance value indicates good insulation, while a low value may suggest insulation problems requiring further investigation.Voltage Withstand Test: Apply a high-voltage test using a high-voltage tester to verify whether the cable can withstand high voltage under its rated operating conditions. Under normal circums
Leon
08/29/2025
Cable Quality Inspection and Cable Detection & Testing
Cable Quality Inspection and Cable Detection & Testing
Power cable quality inspection and cable testing are conducted to ensure that the cable's quality and performance meet specified requirements, thereby guaranteeing the safe and stable operation of power systems. Below are some common contents of power cable quality inspection and cable testing:Visual Inspection: Check the cable surface for physical defects such as damage, deformation, or scratches to ensure the cable's exterior is intact.Dimensional Measurement: Measure dimensional parameters su
Edwiin
08/29/2025
Transformer Detection, Testing, Maintenance and Servicing
Transformer Detection, Testing, Maintenance and Servicing
Transformer testing, inspection, and maintenance are essential tasks to ensure normal operation and extend the service life of transformers. Below are some recommended steps:Visual Inspection: Regularly inspect the transformer's exterior, including the enclosure, cooling system, and oil tank. Ensure the enclosure is intact, free from corrosion, damage, or leakage.Insulation Resistance Testing: Use an insulation resistance tester to check the transformer's insulation system. Verify that the insul
Vziman
08/29/2025
×
Inquiry
Download
IEE-Business is dedicated to serving the personnel in the global power industry.
Join IEE-Business, not only can you discover power equipment and power knowledge, but also canhnd like - minded friends!