C7 series low-voltage intelligent reactive power compensator

Zhiwei Electric is committed to providing professional power quality management solutions and creating safer, higher quality, and more efficient green energy for customers. Our company's independently developed new generation C7 series anti harmonic and ordinary low-voltage intelligent reactive power compensators are mainly composed of two (△ type) or one (Y type) low-voltage power capacitors, using the latest technological achievements such as microelectronics hardware technology, advanced software technology, microsensor technology, micro network technology, and electrical manufacturing technology to achieve the function of low-voltage intelligent power reactive power compensation.

The C7 low-voltage intelligent reactive power compensator is divided into C7-C ordinary type and C7-LC anti harmonic type. The ordinary reactive power compensator is compact in size, easy to assemble, and has a large compensation capacity per unit volume, making it suitable for reactive power compensation in general situations. Anti harmonic reactive power compensator is mainly used in electrical environments with severe harmonics in the power grid. It can effectively protect capacitors, improve their service life, and to a certain extent, absorb and eliminate harmonics.

Features

• Filtering function (anti harmonic type): effectively suppresses high-order harmonics and inrush currents, forming a low impedance path for high-order harmonics. It has the ability to absorb and release harmonics, eliminate the impact of high-order harmonics on capacitors, protect circuits and capacitors from overload, prevent capacitor overheating, alleviate insulation medium aging, improve self-healing performance, and extend service life.
• Synchronous switching function: In conjunction with a dedicated controller, it has a fast response time, can achieve dynamic tracking, and accurately switches when the voltage and current are zero, with minimal impact from harmonics.
• Phase compensation function: Phase compensation products can be compensated jointly or separately to improve the accuracy of reactive power compensation, mainly used in three-phase unbalanced systems.
• LED indicator function: LED lights indicate the switching status of capacitors, device status, and network status.
• Measurement functions: Distribution voltage, current, reactive power, power factor measurement, phase and capacitor current measurement.
• Protection function: It has capacitor overcurrent, overvoltage, undervoltage, overtemperature, and harmonic protection functions to improve the service life of capacitors and ensure the safe operation of the system.
• Communication function: RS485 communication connection is used between devices for data exchange and information exchange with monitoring terminals, forming an intelligent communication network.
• Intelligent network control: automatically detects power factor and makes intelligent decisions based on user set target power factor. Capacitors with the same capacity are switched according to the cycle switching principle, while capacitors with different capacities are compensated according to the adaptive principle. Capacitors should be put into operation first, then withdrawn first, and then put into operation first; When the compensation condition is constant, the capacitor will cycle on and off at regular intervals to avoid prolonged operation of a single capacitor.
• Fault self diagnosis function: The intelligent control component of the capacitor can self diagnose various operating parameters of the body. Once an online fault occurs, the whole machine quickly responds and exits operation.
• Energy saving and consumption reducing function: effectively improves power factor, while reducing the volume of the complete set of low-voltage reactive power automatic compensation equipment by about 50%, saving resources (copper, silver, engineering plastics) by about 50%, and reducing electrical losses (wire loss, contact line loss, equipment loss) by about 50%. Reduce power consumption and improve power quality.