Energy feedback equipment suppliers remind you that rectifier feedback units can timely and efficiently feedback the electrical energy converted from the kinetic or potential energy of production machinery to the power grid, effectively saving energy; And whether in rectification or feedback state, the voltage and current waveforms on the grid side of the rectification feedback unit are sinusoidal waveforms with very little harmonic content, and the power factor is close to 1, basically eliminating the harmonic interference of the frequency converter on the grid and truly achieving environmentally friendly electricity use.
The rectification feedback unit can return the energy wasted on energy consuming resistors in traditional frequency converter applications to the power grid, saving a lot of electricity and achieving considerable social and economic benefits; And it can improve the power factor of electrical equipment and the power grid, reduce the distribution capacity of customers, and improve the efficiency of the distribution system.
Therefore, rectification feedback units can promote energy conservation and emission reduction, promote harmonious development of the environment and resources, and have significant economic and social benefits.
Main features of the product:
1. It can improve the input power factor in the transmission field; Reduce harmonic pollution in the power grid;
2. There will be no commutation voltage gap and no commutation failure problem.
For power supply voltages with significant fluctuations, even if the voltage drops below 80% of the rated voltage, a stable DC bus voltage can still be ensured.
4. Adopting the fourth generation IGBT, the power cycle and temperature cycle of IGBT are greatly improved; Adopting dry metalized polypropylene film capacitors, with long service life, wide practical temperature range, and no pollution to the environment.
5. Good voltage adaptability, more suitable for domestic power grid, voltage 380V+15%/-20%; 460V+15%/-20%; 690V+15%/-20%。
6. It has Profibus DP and Can open communication functions, which can communicate with the upper computer and achieve monitoring.
7. It has automatic phase sequence detection and synchronization functions, making it easy to use; No parameter settings required, easy to use.
8. It has multiple protection functions such as overvoltage, undervoltage, ground fault, motor phase detection, overcurrent, overtemperature, current limiting, phase loss, short circuit, communication, etc.
Applicable fields:
Various mine hoists;
Equipment for potential energy transformation of various construction and port elevators, cranes, etc;
Production testing equipment for towing types such as dynamometers and locomotive test beds;
In the field of new energy generation such as wind power and solar power.