LDS135 Current Transformer

Product Overview

 Double cable Cores Type CT.LDS135 adopts newly high permeability core with high measuring accuracy.Secondary winding fully enclosed vacuum casting in antiflaming plastic shell. It easily installed by making the primary cable through the whole,applied to electrical system cable with highest equipment voltage 0.72,functioning as the tool of current metering , signal collection, relay protection. The current transformer can be executed according to the standard IEC 61869-1:2007 and IEC 61869-2:2012. Or IEC60044-1

Key Features

• Modular Combination Expansion Capability：Engineered with a modular architecture, the LDS235 supports parallel connection of multiple units to meet ultra-high current measurement requirements. Users can flexibly scale the number of transformers based on actual load current, expanding the transformation ratio beyond 5000/5A while maintaining consistent measurement accuracy.

• Dynamic Range Expansion Technology：Leveraging advanced magnetic circuit optimization and signal processing algorithms, the LDS135 achieves an industry-leading dynamic response ratio of 1:300. It delivers exceptional linearity from 0.1% of rated current under light loads to 30kA short-circuit fault conditions, ensuring reliable full-spectrum monitoring for power systems.

• IoT-Integrated Design：Equipped with built-in IoT modules supporting NB-IoT and 4G protocols, the LDS135 seamlessly integrates with smart grid management platforms. Cloud-based remote configuration, real-time data monitoring, and analytics enable maintenance teams to access device status anytime, anywhere, streamlining intelligent and centralized power asset management.

• Flexible Anti-Shock Structure：Featuring an innovative flexible buffer design with elastic support materials and seismic damping structures, the LDS135 withstands mechanical shocks up to 10G and severe vibrations. Ideal for applications with high vibration requirements such as rail transit systems and offshore wind platforms.

Technical Data

• Rated secondary current:5A

• Power frequency withstand voltage:3kV

• Rated frequency:  50/60Hz

• Installation site:  Indoor

• Technical standard:   IEC 60044-1 (IEC 61869-1&2)

Specification

Outline