Technology of optical isolation of low-voltage control circuits from high-voltage power modules is used in high-voltage transformers, which provides trouble-free operation of soft start units under conditions of high disturbances. Logical module includes interface RS-485 with open protocol ModBus RTU which allows programming the unit and integrating it with the data transmission network of the facility.
Soft start unit can be supplied with visualization unit to improve the operation of the interface “man – machine”. Different algorithms of technological processes operation can be realized by the complex with built-in automation controller.
|Rated operating voltage||Three-phase, 10 kV (±10% -15%)|
|Rated frequency||50 Hz|
|Rated motor power||in reques|
|Maximum allowed starting current ratio at rated power||in reques|
|Output voltage control time range||0-120 s|
|Startup rate||6 and more launches in hour|
|Protection rating||IP20 rating in compliance with GOST 14254|
|Interference immunity and interference emission limitation||in compliance with GOST R 51524|
|MTBF||not less than 10000 hours|
|Average lifetime||not less than 10 years|
|The climatic conditions||Altitude no more than 1000 m|
Ambient air temperature: for UHLZ.1 -10°С...+40°С, for U2 -40°С...+40°С
Relative humidity 93% at +25 C. Content of explosive and corrosive gases in environment below concentrations destroying metals and insulation, low conductive dust content.
|Output voltages unbalance of the phases under current load of 0,1 IN and symmetrical input voltages||3% maximum|