Product description
Product Overview
The 126kV Current Transformer is a high-voltage instrument transformer designed for current measurement and protection in 126kV power systems and substations. It accurately converts primary current into standardized secondary current for metering instruments, protection relays, and control systems.
This product is widely applied in transmission substations, utility power grids, and industrial high-voltage systems where high accuracy and operational reliability are required. It is designed to operate under harsh electrical and environmental conditions, ensuring safe and stable power system performance.
Key Features of 126kV Current Transformer
High Accuracy for High Voltage Metering and Protection
The 126kV Current Transformer provides precise current transformation for both revenue metering and protection applications in high-voltage transmission networks.
Strong Insulation and Electrical Reliability
Designed for 126kV systems, it offers excellent insulation performance to withstand lightning impulse and power frequency voltage, ensuring long-term operational safety.
Robust Structure for Harsh Environments
The mechanical design is suitable for outdoor substations, with strong resistance to weather conditions, corrosion, and electrical stress.
Advantages of 126kV Current Transformer Compared with Other Voltage Levels
Suitable for Transmission-Level Substations
Compared with 35kV distribution CTs, the 126kV Current Transformer is designed for transmission systems, supporting higher voltage stress and stricter grid requirements.
Higher System Reliability and Electrical Strength
Compared with lower voltage products, it provides stronger insulation margin and higher reliability for critical grid infrastructure and long-distance power transmission.
FAQ – 126kV Current Transformer
1. What is the typical lead time for a 126kV Current Transformer?
For standard configurations, the lead time of a 126kV Current Transformer is typically 4–6 weeks. For customized designs such as special accuracy classes, multiple secondary windings, or specific mechanical requirements, delivery may extend to 6–10 weeks depending on engineering confirmation and production scheduling.
2. What is the installation environment of a 126kV Current Transformer?
The 126kV Current Transformer is mainly used in outdoor substations and transmission-level switchyards. It is designed to withstand high electrical stress, UV exposure, temperature variation, and pollution levels commonly found in high-voltage grid environments.
3. What accuracy classes are available for 126kV Current Transformer?
Typical accuracy classes include 0.2, 0.5 for metering and 5P10, 10P10 for protection. Additional configurations can be customized based on utility or project requirements.
4. What is the main difference between 126kV and 35kV Current Transformers?
The 126kV Current Transformer is designed for transmission-level power systems, with higher insulation requirements, larger physical structure, and stronger electrical withstand capability compared with 35kV distribution-level CTs.
