Characteristics of high frequency switching power supply system
The high-frequency switching power supply system is a high-performance DC system carefully designed to meet the requirements of unattended substations and comprehensive automation. It is composed of high-frequency switching power supply modules and monitoring modules. It is easy to assemble, has a novel structure, has high module reliability and a high degree of automation. It can be connected to a microcomputer or power system integrated automation network through RS232 or RS485 to realize remote control, remote signaling, telemetry and remote adjustment.
Characteristics of high frequency switching power supply system
High reliability
1. The power module is stable, reliable, has a long life, and adopts N+1 redundant configuration;
2. The pluggable power module can be replaced while the power is on without affecting the normal power supply of the equipment.
High intelligence
1. It can detect various faults such as internal faults of switching power supply modules, low insulation, feeder circuit faults, blown battery fuses, and AC faults;
2. Equipped with a variety of communication protocols to facilitate connection with various comprehensive automation networks;
3. The charging module is intelligently controlled and provides a data communication interface;
4. It has the function of smooth adjustment of output voltage and current;
5. The charging module hardware has low-differential independent current sharing to ensure reliable operation of the system;
6. Remote control, remote signaling, telemetry and remote adjustment can be realized.
Complete protection
1. The equipment has AC over and under voltage protection, output current limiting and over voltage and short circuit protection;
2. Automatic conversion between equalizing charge/floating charge, two-level current limiting for switching power supply module and battery charging;
3. Real-time monitoring of each feeder circuit and busbar insulation.
beyond unique
1. Decentralize the multi-level monitoring system to make the monitoring system simple and reliable;
2. It can withstand large load impacts and has a long service life;
3. The overall layout is reasonable, the structure is compact, and the operation interface is simple and clear.
High frequency switching power supply system parameters
AC rated input voltage three-phase three (four) wires 380±20% frequency 50Hz±10%
DC output voltage 220V/110V
DC output current 5A*N, 10A*N, 20A*NN≤15
Power factor ≥0.98
Voltage stabilization accuracy ≤±0.5%
Steady flow accuracy≤±0.5%
Ripple voltage <±0.5%
The overall noise is <55dB
Average load ≤±0.5%
Overall dimensions: width*height*depth 800*2260*600mm
High frequency switching power supply system application
It is suitable for transmission and transformation (distribution) rooms in electric power, steel, metallurgy, petroleum, chemical industry, railway and other systems. It can be used as DC control signal power supply, relay protection, emergency lighting and fire control power supply in 10KV~550KV grade substations (stations).
