Reduced operating and maintenance costs for power inverter systems
In the currently operating integrated automated substation, there are typically backend monitoring computers, with communication equipment mostly consisting of microwave and fiber optic machines. These monitoring and communication devices are powered by AC sources. To ensure uninterrupted power supply to meet the four remote requirements, different devices must be equipped with separate uninterruptible power supply (UPS) and battery banks. However, installing an inverter power supply in the substation can directly utilize the large capacity batteries of the existing DC power system to provide AC power, saving on investment costs compared to the UPS power supply solution. It also avoids redundant investment in battery banks, reduces maintenance workload, and lowers operational costs.
Enhanced Power Inverter Supply Reliability
The installed direct current (DC) power system in the substation is long-lasting, hence the adoption of a DC power + inverter solution. By utilizing the monitoring functions of the DC power system and the communication capabilities of the inverter, the operation status of the inverter power supply can be remotely monitored in real-time, addressing the issues of conventional UPS power supplies with small battery capacity, lack of monitoring, and the potential for battery damage that goes undetected. Due to the high capacity batteries in the substation's DC power system, the uninterrupted power supply time is extended after a power grid outage, truly serving as a backup power source and enhancing its power supply capabilities. Aviation ground power 2, 36V aviation power 1, 400Hz frequency converter power 7, 115/200V power 2, 27V DC power 5, 400Hz power 12, aviation power
The power inverter is a new-generation DC/AC power product, with an input of 220V DC and an output of 220V, 50Hz sine wave AC. It is isolated from the grid at both input and output ends, mitigating the impact of power fluctuations on the load. This meets the power requirements for substation RTUs, communication equipment, and microcomputers, etc. Additionally, isolation from the grid also prevents damage to the power board caused by lightning and other overvoltage events, enhancing the safety of the load.
