Current Transformer--LSY-10 transformer Integrated CT

The LSY - 10 Three - Phase Bar - Type Current Transformer Integrated CT is a key device in power systems. It is designed to measure and transform the three - phase current in a 10 - kV power grid. This type of current transformer is of the bar - type structure, which means the primary conductor is in the form of a bar passing through the center of the transformer. The integrated CT design combines multiple functions or components into one unit, providing a more compact and efficient solution for current measurement and related applications in power distribution systems.

Product Detail

Introduction

Parameters

Rated voltage: 10 kV, indicating the voltage level of the power grid where the transformer is applicable.
Rated primary current: Available in various specifications such as 100 A, 200 A, 300 A, 400 A, 500 A, 630 A, 800 A, 1000 A, etc., to meet different current measurement requirements.
Rated secondary current: Usually 5 A or 1 A, which is the standard output current for connection to measuring instruments, relays, and other devices.
Accuracy class: Common accuracy classes include 0.5, 0.2S, 5P, 10P, etc. The accuracy class determines the measurement accuracy of the transformer. For example, 0.5 - class and 0.2S - class are suitable for accurate measurement and metering, while 5P and 10P are for protection - related applications.
Rated burden: Expressed in VA (volt - amperes), with common values such as 10 VA, 15 VA, 20 VA, 30 VA, etc. It represents the maximum load that the secondary winding can carry while maintaining the specified accuracy.
Insulation level: Designed to withstand the 10 - kV voltage level and meet the relevant insulation requirements, including withstand voltage between windings and to ground, as specified by relevant standards.

Characteristics

Compact bar - type structure: The bar - type design makes the transformer structurally simple and compact, saving space in the switchgear or distribution cabinet. It is easy to install and integrate into the existing power system.
High accuracy measurement: With advanced design and manufacturing techniques, the LSY - 10 can achieve high - accuracy current transformation, ensuring accurate measurement of three - phase currents for power metering, monitoring, and protection purposes.
Good thermal stability: It has excellent thermal stability, which can withstand continuous operation under rated current conditions without significant overheating. This is ensured by the use of high - quality core materials and proper winding design to reduce losses.
Reliable insulation performance: The transformer is equipped with high - quality insulation materials and structures to ensure reliable insulation performance, preventing electrical breakdown and leakage. It can operate stably in high - voltage environments.
Wide range of applications: Suitable for various 10 - kV power distribution systems, including industrial power plants, substations, and commercial buildings, to provide accurate current measurement and protection for three - phase power circuits.