This product is designed to meet the operational service management requirements of distribution networks, improve equipment selection standardization, strengthen quality control systems, enhance equipment durability, and highlight core equipment advantages. It follows the principles of safety, reliability, robustness, uniformity, and interchangeability. It is a standardized device developed in accordance with the 2021 Edition of the Standardized Design Scheme for 12kV Primary-secondary Integrated Ring Main Units (Cabinets) and Distribution Automation Terminals (DTU) and related documents.
Key Features
Modular design facilitates maintenance and installation
Modules use rectangular connectors with no exposed terminals and fool-proof design, ensuring interface uniqueness
Operating circuit equipped with anti-pumping and self-holding functions
Connectors for electromagnetic current transformers feature automatic CT terminal short-circuit function, meeting the open-circuit prevention requirements of electromagnetic CTs
Overall protection rating reaches IP55, enabling reliable operation in severe condensation environments and effectively preventing solid dust ingress
Applicable to breaker compartments in primary-secondary integrated standardized ring main units, providing closing/opening control, circuit monitoring, and protection anti-pumping functions
Compartment operating module includes 4 pressure plates (remote closing, remote opening, protection closing, protection tripping), as well as remote control switch, opening/closing buttons, opening/closing indicator lights, remote/local switchover, and other operation functions
PT switching module is suitable for three-phase AC voltage switching in power systems and scenarios requiring arbitrary output of any single-phase voltage
