VR-810MRT
Standard features
Have such protection functions as short circuit protection, stalling protection, overload anti time protection, earthing protection, open phase/unbalance protection, underload protection, TE curve protection, electric dazzling protection;
Measure such electrical parameters as three-phase current, zero-sequence current, three-phase current unbalance factor, realize comprehensive protection for motor;
The relay protection output is by means of protection trip and it completely takes place of conventional thermal relay. Secondary circuit is placed in through normal closed contact of intermediate relay
Wide range AC/DC power supplyAC/DC110V ～ 250V;;
RS-485 communication interface, Modbus-RTU communication protocol;
3 channel switching value input can realize the acquisition of external state quantity; 2 channel relay protection control output, used in protecting tripping and failure alarm output etc.;
Three-phase current measurement and SOE records, real-time reading via communication interface; the protection parameters can be set through display unit and communication software;
Optional features
Extended display unit: real-time display of power measurement, on-site setting of parameters
Digital LED display unit PDM-810DS (DS)
Digital LCD display unit PDM-810DSC (DSC)
1-channel programmable analog output 4mA~20mA (A)
Connected to zero-sequence/leakage CT input, measure zero-sequence/ leakage current (Y1A/Y50)
There are two current input modes available for user's choice.
1.Special small CT input (MT optional): less than 15A( MT25), 15A-60A(MT100 )、30A-110A( MT150)、60A-150A(MT250 )
2.In case of more than 150A, adopt standard CT(1A/5A)
Overall Dimensions:
