RZHV Medium Voltage Frequency Inverter

RZHV series high voltage inverter is the third generation of high voltage frequency conversion speed regulating device which is independently developed, designed and produced by Rongzhi Electric. The system adopts the current stable, reliable and advanced power unit cascade technology, with DSP+FPGA+CPL D processor as the control core, PLC as the user interface, and touch screen as the human-computer interaction interface. Inject the most advanced motor vector control algorithm has high control precision, fast response speed, low frequency torque and other characteristics has been widely used in the fan. hoist and other loads of energy-saving speed regulation and process improvement, solve the problem of using, for users to create profit.

In order to ensure that the speed regulating device can run stably and reliably for a long time, the installation and working environment of frequency conversion speed regulating device should meet the following requirements.

The inverter room should be equipped with sufficient air conditioning equipment, dehumidification equipment, dust sealing equipment, to ensure that the operating environment temperature of equipment meets the requirements of 6.2 Operating environment in DL-T994-2006.

There shall be no conductive or explosive dust, no gas or steam that corrodes metal or damages insulation, the total amount of non-conductive and non-explosive dust <6.5mg/dm3, and the pollution level shall not be greater than grade II.

The electromagnetic environment of the installation site shall meet the provisions of the following national standards (Electromagnetic compatibility test and Measurement Technology) : GB/ T1766.2 -1998; GB/T17626.4-1998; GB/T 17626.5 1998; GB/T 17626.6 1998; GB/T 17626.8 1998.

The power supply harmonics comply with GB/T 14549, and the power supply voltage fluctuation ranges from +10% to -35%. The voltage unbalance of the power supply meets the requirements of GB/T15543, and the frequency fluctuation range of the power supply meets the requirements of GB/T15945.Inverter room and superior power distribution system are required to have good lightning protection measures to avoid lightning damage.Party A guarantees that the grounding resistance at the grounding point of the device is less than 4 ohms, and the connecting section between the grounding point of the inverter and the grounding point of the power grid shall not be less than 50mm².If the room installed with frequency converter needs heating, electric heating equipment should be used. Do not use water heating to avoid frequency converter failure caused by heating leakage.heating to avoid frequency converter failure caused by heating leakage.