INTELLIGENT FILTERING REACTIVE POWER COMPENSATION
The Intelligent Filtering Reactive Power Compensation Module, EIFSA series are composed of an intelligent measurement and control unit, an intelligent zero-crossing switching relay, an intelligent protection unit, and a LV filter power capacitor to form an independent and complete intelligent compensation unit. It replaces the automatic reactive power controllers, fuses (MCCB), thyristor composite switches (or contactors), thermal relays, indicator lights, low-voltage power capacitors, and dry series reactors. The product is mainly used for reactive power compensation in places with severe harmonics. It can operate reliably without resonance, has no amplification effect on harmonics, and has the function of absorbing and eliminating harmonics to a certain extent. Among them, products with 6% and 7% reactors in series are used in electrical environments where the main harmonic is 5th order, and products with 12% and 13% reactors in series are used in electrical environments where the main harmonic is 3rd order.OVERVIEW
The Intelligent Filtering Reactive Power Compensation Module have over voltage, over current, under voltage, loss of voltage protection, phase loss, short circuit protection, capacitor and reactor over temperature protection, harmonic overrun protection, capacity loss overrun alarm, switching fault alarm, circuit. The functions of fault alarm and communication fault alarm can effectively ensure the safety of capacitors and prolong the life of equipment. Low-voltage power capacitor body temperature protection is one of its important protections, and the working power supply voltage is too high. Excessive harmonics and high ambient temperature will seriously affect the service life of low-voltage power capacitors. Setting the internal temperature protection of the low-voltage power capacitor can exit operation when the internal temperature exceeds the value, thereby prolonging the service life of the low-voltage power capacitor. Modular structure The smart capacitor is a modular structure with small size, simple field wiring and convenient maintenance. Only need to increase the number of modules to realize the expansion of the reactive power compensation system. Zero-crossing switching is realized by the core device intelligent zero-crossing switching relay to achieve zero-voltage switching and zero-current switching, that is, "zero-crossing switching", which reduces system power consumption. Therefore, the capacitor switching process has no inrush current impact, no removal of overvoltage, and no arcing. switching criteria of the control technology are power factor and reactive power. Reactive power flow prediction and delayed multi-point sampling technology are adopted. When the power factor is lower than the set value, the switching is controlled according to the load reactive power deficiency classification difference to ensure switching No oscillation. When the load is heavy, the reactive power is fully compensated. The controller is optional, and the intelligent capacitor can work as a system to realize the low-voltage reactive power automatic compensation function. The individual intelligent reactive power compensation capacitor will automatically exit after failure and will not affect the rest of the work. Using intelligent network technology to build a 485 communication network, multiple capacitors are used in parallel to automatically generate a network, where the one with the smallest address code is the host, and the rest are the slaves. It constitutes a low-voltage reactive power automatic control system. The failure of individual auxiliary machines will automatically exit without affecting the rest of the work. The main machine will automatically exit if failures occur, and a new main machine will be generated in the remaining auxiliary machines to form a new system. The capacitor components in smart capacitors adopt a progressive thickening silver-zinc coating process. The silver zinc coating has good conductivity and stability, and the thickness is proportional to the current density there, so the heat generation is small and uniform during operation , It greatly improves the capacity stability of LV power capacitors, with very little attenuation. The overall high vacuum immersion technology of the capacitor ensures that the capacitor has excellent stability and long service life. The use of large LCD screen full Chinese display and keys to realize man-machine communication. Real-time display of network status and capacitor operating data on the LCD: including reactive power, system power factor, voltage, current, capacitor current, harmonic distortion rate, capacitance capacity, capacitor body temperature, C/T transformation ratio, number of online units, etc. Real-time monitoring of the operating conditions of the internal zero switching switches, circuit breakers, capacitors and other parts of the smart capacitor, and real-time Chinese prompts on the LCD. Facilitate rapid fault location. In order to achieve maintenance-free. The fool operation mode can automatically identify and set the transformer ratio of the external main cabinet, and automatically identify the polarity of the sampling signal of the secondary transformer. There is no worries about the connection of the polarity and the wrong connection. Each unit can automatically generate the communication address code without manual setting. , Which is connected and ready to use. Hybrid compensation function can realize split-phase compensation. In the case of unbalanced three-phase load, the combination of three phase and split-phase can be used. According to the size of the reactive power shortage of each phase, the three-phases are switched on and off separately to achieve reactive power optimization.
TECHNICAL CHARACTERISTIC
Model
EIFSA