Business Products
时间: 2003 - 05 - 10
With the recent development of distribution systems and further renovation of urban and rural distribution networks, numerous cables have replaced previous overhead transmission lines. To a certain extent, the decrease in the probability of single-phase earth faults reduces the high trip-out rate arising from low-resistance grounding systems. However, the high line selection accuracy of such low-resistance grounding systems are accepted by the majority of users. Consequently, they still have a w...
时间: 2015 - 05 - 24
Product OverviewZGMNGR multi-mode grounding system is fully integrated with arc suppression coil and low resistance grounding systems. It eliminates the weaknesses of such two conventional systems and gives full play to their respective advantages. Thus, it proves to be a novel neutral grounding system for distribution networks. After compensation by arc suppression coils in ZGMNGR multi-mode grounding system, any transient earth fault can be recovered. In case of a permanent earth fault, the co...
时间: 2004 - 05 - 10
Product Description: This controlled resistance grounding system consists of a controlled reactor and low resistance. It gives full play to the benefits of resonance and low resistance grounding technologies. In case of an earth fault on a distribution network, it can achieve perfect comprehensive troubleshooting based on the specific failure.When a transient earth fault occurs on a distribution network, the controller calculates the required inductor current to be compensated according to the m...
时间: 2005 - 02 - 10
Product Description:1. Grounding line selectionSuch detector can achieve the single-phase grounding line selection of the 3 kV - 66 kV isolated neutral system or the neutral grounding system of resistance and arc suppression coils. Its operation mode is free from the system operation mode and ground overcurrent resistance.2. DisplayIt has the data displayed in Chinese, including real-time clock (RTC), detector operation state, system configuration parameters, busbar or line sequence numbers of e...
时间: 2010 - 05 - 10
Product OverviewZG-dSVC HV dynamic SVC is developed by Zhiguang Electric's R&D team with Tsinghua University relying on its technologies and experience in high-power electric and electronic apparatuses, HV reactive power automatic compensation control, and power automation. Such SVC has passed the type test performed by the national authority and has been successfully applied in metallurgical, coal, and wind power generation industries.        Principle & Co...
时间: 2014 - 05 - 10
Product Description: As our latest SVG product for distribution networks, ZG-dSVG has an H-bridge cascaded topological structure as its main topology control unit. It provides reactive power for grids by controlling the ON/OFF state of electric and electronic devices. Compared with conventional SVG products depending on reactors and capacitors, ZG-dSVG features less loss, faster response and better compensation effect, and significantly improves the reactive power compensation technology for dis...
时间: 2014 - 05 - 11
With the development of distributed energy technologies, more importance has been attached to the microgrid study. As a basic unit of the Internet of Energy, a basic "Energy LAN" is set up throughout the entire process of energy collection, conversion, integration, storage and consumption. To guarantee the efficient and safe transfer of energy information, the energy router is a standard and software-definable routing control system of such information. It also serves as the core contr...
时间: 2010 - 05 - 11
Our 220 kV XLPE insulated power cable series has a wide range of applications in the electric power engineering, medium and large-sized industrial enterprises, municipal construction and infrastructure. Such products are manufactured with the double-channel, triple extrusion, vertical, all-dry and crosslinking process. They have excellent performance and in particular, such indicators as eccentricity and magnitude of partial discharge are better than those specified in the national and IEC stand...
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