Primary and secondary fusion ring cage
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Product Description
- 产品描述
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The p primary and secondary fusion ring cage is an intelligent equipment set designed to meet the State Grid Corporation of China's latest Technical Standard for Primary and Secondary Power Distribution Equipment.It incorporates advanced technologies including electromagnetic voltage and current transformers,energy metering modules,and high-speed fault transientfitering.Comprising loop inlet and outlet units,feder units,and busbar equipment(PT)units,along with centralized DTUs and connecting cables,this system can collect data on active and reactive power,power factor. frequency,zero-sequence curent,and voltage.It ofers line loss and energy metering capabiities,along with line voltage identification,alerts for voltage and load imit violations,short-circuit fault detection and resolution,and single-phase grounding fault detection and handling,facilitating the transmission of short circuit/grounding fault events to fulfill the needs of distribution network automation.
Main Features
Adopt voltage-time based electromagnetic mechanisms or conventional spring operating mechanisms.
1.Feature conventional protection,voltage and current types,and distributed intelligent FA functions.
2."Centralized and decentralized control terminal is intuitive and easy to use.
3.Employ CVT electronic voltage sensing technology.
4.The isolation knife is integrated with the vacuum arc extinguishing chamber.
5.A supercapacitor backup power supply that is maintenance-free throughout its entire lifecycle.
6.Circuit breakers and load switches can be flexibly and conveniently grouped in any cabinet.
Technical parameters:
Item Parameters Control terminal Working power supply AC220V±20%,50Hz Whole unit power consumption ≤15VA Working envionment Operation temperature -40~70℃ Humidity <95%,without condensation. Telemetry input Measurement accuracy U,I:Level 0.5;P.Q:Level 1:f:0.01Hz Linear range Voltage:0~300V;Current:0~100A Remote signalng input Remote signaling power supply DC24V Resolution s2ms Standard capacity 2个2of them Remote control output Output method Power relay Contact capacity AC250V/16A:DC48V/10A;DC30V/16A Communication mode Standard capacity 1 combination/minute Interfacetype 4RS232/RS485 serial ports,210/100M network ports Communication protocol Supports protocols such as IEC60870-5-101 and IEC60870-5-104 Electromagnetic compatiblity Meets DL/T721-2013 Power Industry Standard Level IV Primary switch Rated short-circuit breaking current 20kA Rated withstand current (peak) 50kA Rated short-time withstand current 20kA Rated short-circuit closing current(peak) 50kA Breaking times of rated short-circuit breaking curent 30 Times Mechanical Life 10000 Times Three phase asynchronous disconnection ≤2ms
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