1. Project Overview
Oriental City Shopping Plaza (Ginza) is located in the commercial area of ​​Zhongshan Road Railway Station in Shijiazhuang. In the mall building, each air-conditioning fan needs to be equipped with a control cabinet. Because of the large fan load, the utilization of the power grid is wasted, and the air-conditioning fan can be controlled effectively. To increase the utilization rate of the power grid, it is necessary to add capacitance compensation and electronic softening. Our company will design electronic drawings and solutions for our company according to requirements, and choose electronic soft-start and capacitor compensation. Electronic soft-start adopts the world's most advanced intelligent soft-start technology, which can greatly reduce the soft-start current when the equipment is started, avoid the impact of high current and high torque generated during start-up on the electrical system and mechanical equipment, and extend the service life of the equipment. The capacitance compensation device can reduce the reactive power loss of the mall, increase the power factor of the power equipment, and can suppress the harmonic source amplification.
2, to achieve the function and effect
The main circuit of the device adopts a modular structure and modular installation. With multiple over-voltage absorption, protection technology. Multi-layer clipping clamps for transient dv/dt, lightning impulse voltage, operating wave overvoltage, and transient transitions. There are unique measures and methods for di/dt, valve open-pass voltage equalization, and pressure equalization during valve shut-off.
The use of high-interference digital triggers and optical fiber isolation or CT isolation transmission technology support, the device performance is safe and reliable.
The unique fault detection return and judgment system can quickly pass the detection results to the control circuit, sound and light alarm and take corresponding measures at any time to prevent the fault from expanding.
There is no surge current impact during capacitor switching, no operation overvoltage, minimal switching disturbance, small capacitor decay, and low failure rate;
Automatically monitor system voltage, current, active, reactive and compensation system power factors before and after;
Reducing the total system current, saving energy and reducing consumption by more than 25%, enabling users to obtain considerable economic benefits;
The cabinet is thick and intuitive. Wiring rules, beautiful combination. Smooth start, long service life of the fan. 3, after-sale protection
The electronic soft-start capacitor compensation control cabinet has a two-year warranty. Since the installation and commissioning in September 2009, there have been no failures. The customers reflected that the product system was powerful and the compensation effect was good. The wiring inside the cabinet was neat, the cabinets were tidy and the workmanship was excellent.