Corporation ElektroPivdenMontazh
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Transceiver of high-frequency(HF) signals for protections of 110-750 kV lines with the ability to transmit emergency control commands 

 
"ORION" UPZA is designed for transmission and reception of relay protection signals (base function) and automation commands (additional function) through a HF communication channel of overhead 110-750 kV power lines.
 
"ORION" UPZA is a modification of the "ORION" UPZ transceiver. Two additional universal modules are installed in the base terminal (MV - discrete input module and MURS - relay and alarm module), and in the  control module  MC, the software has been replaced, in which, in addition to the existing ones, algorithms for transmitting / receiving automation commands are implemented.
 
The function of transmitting / receiving signals of relay protection "RP" has a higher priority over the function of transmitting / receiving commands of the automation "CA".
 
The implementation of the functions of transmitting / receiving commands of automation (CA) involves the transfer of information from SAON (special automatic load limiting), fixing the state of high-voltage equipment (FOL, FOT, FVL), operability of high-voltage switches (SF6), remote input / output of local automatics, relay protection devices and etc.
 
The function of transmitting / receiving automation commands is implemented with the necessary safety factors and reliability provided that there are no power line fault. 
 
Visual (LEDs, display) inner and external registration of transmission / reception of emergency control commands are provided.
 
The number and the direction of used commands is selected by the user. Transmission of commands in simplex or duplex modes.