The PRS-721 is a digital breaker protection device and can be applied for all kinds of busbar arrangement of various voltage level ranging from 1000kV to 110kV.By default,breaker failure protection,voltage protection, overcurrent protection,stub protection,broken conductor check and automatic reclosing function are taken as the standard functions of PRS-721.
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PRS-721 Breaker Protection
Negotiable
China
No.13, Keji North 1st Road, North Area of Hi-Tech Industrial Park,Nanshan District, Shenzhen 518057, China
+86 755-33018888
sunsy@cyg.com
Product Introduction
parameter
| ltem | Parameter |
|---|---|
| Performance | 32-bit high performance dual-core processor,internal high speed bus and intelligent I/O ports |
| Hardware | Modularized hardware design,flexibly configurable,easy extension |
| Interface | The human machine interface(HMI)with a small control module(a 320×240-dot LCD,a 16-key keypad and 21 LED indicators) |
| Communication | Ethernet network,RS-485 serial ports.Communication protocol optional: IEC61850,IEC60870-5-103,DNP3.0 or ModBus. |
| Analog | Support the protocol IEC60044-8,IEC61850-9-2 and G0OSE,constantly measures and calculates voltage,current,power and frequency. |
| Recording | Fault and disturbance waves,operation reports,supervision,control operation records and time tagged sequence of events. |
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