T/CEEIA 427-2020 3.6kV～40.5kV Intelligent Integrated Indoor AC Vacuum Circuit Breaker

Scope

Scope: This standard specifies the requirements for the use of intelligent integrated indoor AC vacuum circuit breakers with voltages ranging from 3.6 kV to 40.5 kV in terms of operating conditions, terminology, rated values, structure, and testing. This standard applies to intelligent integrated indoor AC vacuum circuit breakers (hereinafter referred to as intelligent integrated circuit breakers) that integrate functions such as measurement, control, protection, communication, and online monitoring and diagnosis as specified in NB/T 42044. Main technical content: The intelligent integrated indoor AC vacuum circuit breakers with voltages ranging from 3.6 kV to 40.5 kV are based on vacuum arc chambers. They adopt the latest technological achievements in microelectronics hardware and software, sensor technology, automatic control technology, and high-voltage electrical equipment manufacturing to realize intelligent integrated functions such as measurement, protection, control, signal transmission, online communication, and online monitoring and diagnosis for indoor AC vacuum circuit breakers, their auxiliary equipment, and complete sets of equipment. This helps overcome the current problems with indoor AC vacuum circuit breakers with voltages ranging from 3.6 kV to 40.5 kV and their application in complete sets of equipment. The technical performance and parameters of this standard are based on the design, manufacturing, and operation experience of intelligent integrated indoor AC circuit breakers at home and abroad. Since intelligent integrated indoor AC vacuum circuit breakers are still in the development stage, the relevant technical requirements of this standard will be gradually revised and improved as the technology develops and matures.

Development Information

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