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.
1/2
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. |
Other products from this supplier
Negotiable
Wind power solution
Negotiable
PRS-7961 Industrial Ethernet Switch
Negotiable
PRS-7367 Feeder Protection and Control Unit
Negotiable
PRS-7961B Industrial Switch
Negotiable
Centralized solar power solution
Negotiable
Distribution solar power solution
Negotiable
PRS-7367 Protection and Control Unit
Negotiable
PRS-7395 Smart Terminal and Merging Unit
Negotiable
PRS-7391 time synchronization device
Negotiable
PRS-7741 Bay Control Unit
Negotiable
PRS-7000 Integrated Monitoring System
Negotiable
PRS-7973 Digital Fault Recorder
Related Products
SCB13 Epoxy Resin Cast Dry-Type Power Transformer
Negotiable
220kV Composite Outdoor Cable Terminal
Negotiable
High/low voltage soft starter device-CMC-LX low voltage motor soft starter
Negotiable
10kV Oil-immersed Station Service Transformer
Negotiable
1XJZN-Q-HXGN environment-friendly gas insulated ring main unit
Negotiable
Outdoor High-Voltage Integrated Primary and Secondary Circuit Breaker LW3-12
Negotiable
SVR Line Automatic Voltage Regulator
100000-1000000
27.5kV Railway-Specific Prefabricated Cable Accessories
Negotiable
QLG-12/24 SF GAS INSULATED RING MAIN UNIT
Negotiable
10kV, 20kV, 35kV series resin cast dry-type power transformer
Negotiable
220kV double-winding no-load voltage regulation power transformer
Negotiable
Vacuum Interrupter
Negotiable

