Reliable AIS CTs for Switchgear | Air Insulated Current Transformers

High-Performance Current Transformers for Air-Insulated Switchgear (AIS)

High-quality Air Insulated Switchgear Current Transformers (AIS CT) from certified Chinese manufacturers, compliant with GB/T 20840, IEC 60044, IEEE C57.13/ANSI, and DL/T 448 - 2000 / DL/T 5137 - 2001 standards. Designed for reliable performance in power systems, these AIS CTs are widely exported to Vietnam, Indonesia, Thailand, Malaysia, the Philippines, Myanmar, Cambodia, and neighboring regions. Trusted by utilities and industrial projects for durability, precision, and global regulatory compliance. Ideal for substation upgrades and grid infrastructure.

Expert Guide & Technical Knowledge

Inspection and Testing Selection and installation Failure and Maintenance Applications and Trends Design and Simulation

What are the common faults of current transformers in air-insulated switchgear?

Hey everyone, I'm Felix, and I've been working in the power system field for 10 years. From following senior engineers on-site to leading teams handling various substation equipment failures, I’ve worked with many types of current transformers (CTs), especially those used in air insulated switchgear (AIS).Although this type of equipment is relatively simple in structure and easy to maintain, it still experiences frequent issues during actual operation. Today, I’ll share my ha

Felix Spark

07/12/2025

What should be noted when selecting and installing current transformers for air-insulated switchgear?

The selection and installation of current transformers for air-insulated switchgear (AIS CT) directly affect the measurement accuracy, protection reliability, and operational safety of power systems. It is necessary to comprehensively consider equipment characteristics, system requirements, and environmental conditions. The specific precautions are as follows:1. Precautions for Selection1.1 Matching of Electrical Parameters Rated primary current: Determine based on the maximum continuous operati

James

07/12/2025

What Tests Must a Qualified AIS Current Transformer Undergo?

Hey everyone, I’m Oliver, a 10-year veteran in the power system industry. Today we’re going to talk about a very practical topic — how do you know if a current transformer (CT) used in Air Insulated Switchgear (AIS) is truly qualified? This isn’t just about meeting technical specs; it’s directly tied to equipment safety, grid stability, and accurate metering.Let’s dive in — based on my real-world experience.IntroductionIn subs

Oliver Watts

07/12/2025

What Is the Development Trend of AIS Current Transformers?

Hey everyone, I'm Echo, a 10-year veteran in the power system industry. Today we’re going to talk about an important topic — the future development trends of current transformers (CTs) used in Air Insulated Switchgear (AIS).As technology advances and market demands evolve, these critical components are also undergoing continuous innovation. In this article, I’ll walk you through the key directions of future development based on my hands-on experience and industry ob

Echo

07/12/2025

How to select a current transformer?

1 Role of Current TransformersCurrent transformers are used to sense the magnitude of current and isolate the primary system from the secondary system. The primary winding of a current transformer used in a power system is connected in series in the primary high - voltage system, and the secondary winding is connected to measuring instruments and relay protection devices. It induces the current in the primary high - voltage system and converts it into a low - voltage small current on the seconda

James

07/14/2025

What does the maintenance of current transformers involve?

1 Basic Operation RequirementsThe technical parameters of current transformers shall meet the actual operation needs. Carefully check the nameplate of the current transformer to confirm whether its technical parameters meet the requirements. Current transformers for metering must be selected with rated loads and accuracy classes that meet the requirements in accordance with relevant metering standards. The actual load connected to the secondary winding of the current transformer shall be within

Felix Spark

07/14/2025

Echo

As an expert in the application and trends of electrical equipment, I have a profound mastery of knowledge in circuits, power electronics, etc. I possess a comprehensive set of abilities including equipment design, fault diagnosis, and project management. I can precisely grasp the industry's pulse and lead the development of the electrical field.
Dyson

Focused on the design of electrical equipment, proficient in electrical principles and relevant specifications, and skilled in using design software. From intelligent substations to various types of electrical equipment, I am adept at optimizing design solutions, integrating new technologies. With practical experience and collaborative management capabilities, I deliver outstanding electrical design achievements.
James

Professionalism builds strength. As an expert in the installation and operation of electrical equipment, I am proficient in the installation process and strictly adhere to standards. I skillfully master the operation essentials and can swiftly eliminate faults. With a heart that constantly explores new knowledge, I illuminate the path to the efficient operation of electrical equipment.
Oliver Watts

Hey! I'm Oliver Watts, an electrical engineer in Inspection and Testing. With years of hands - on experience, I ensure electrical systems meet top safety and performance standards. Using advanced gear, I conduct diverse tests, easily spotting issues in both large - scale industrial and small - scale commercial setups. I love teaming up, sharing knowledge, and keeping up with industry regs. Also, I'm skilled at data analysis with software. If you're into electrical inspection or just want to chat engineering, reach out. Let's connect and explore!
Felix Spark

Hey there! I'm an electrical engineer specializing in Failure and Maintenance. I've dedicated my career to ensuring the seamless operation of electrical systems. I excel at diagnosing complex electrical failures, from malfunctioning industrial motors to glitchy power distribution networks. Using state - of - the - art diagnostic tools and my in - depth knowledge, I pinpoint issues quickly. On this platform, I'm eager to share my insights, exchange ideas, and collaborate with fellow experts. Let's work together to enhance the reliability of electrical setups.