With great-leap-forward development,railway as main artery of national economy plays important role on rapiddevelopment of national economy, and how to further provide stable and reliablesignal power has been powerful guarantee for promoting great-leap-forwarddevelopment of railway. Intelligent power supply panel of railway signal of PZseries developed by Beijing Dinghan Company covers shortage and defect of otherrailway signal power to integrate, modularize, intelligentize and internetizesignal power, and meet power demand of growing railway signal system.
Intelligentpower supply panel of railway signal of PZ series of Dinghan Company has greatadvantages.
1.Quick automatic switch betweenⅠand II power supply.
Automatic switch is realized by thetwo-route AC power supply within 100ms, 150ms lower than relative standard.
2. The productis easy to be operated and maintained.
The whole system adopts the modular design; various modulescan be flexibly composed of various power systems, making the whole system bemodular and easy to be operated; in addition, the adopted non-damage hot swaptechnology make it is easy for changing unit modules and maintenance.
3. The productis safe and reliable, with stable performance.
Various power supply modules adopt "1 +1" or"n +1" redundant heat engine standby. The product will automaticallyenter into the protected state in case of failures in certain power supplymodule. The power supply switching to the standby module for power supplyimproves the safety and stability of system.
4. The productis highly integrated and intelligent.
The whole power supply panel adopts the integratedsupervision device and monitoring module to transmit the application state,switch capacity, electrical parameters and other data of various unit modulesto the monitoring module through communication, supervising the application ofpower supply panel, record the failure and send sound and light alarm signals.
5. Hot swaptechnology of modules.
All modules of the power supply panel system adopt thenon-damage hot swap technology, which greatly facilitates the on-sitemaintenance work.
6.High-frequency design containing PFC circuit, which makes that the power factorreaches 0.99 and the efficiency is more than 85％.
7. The modular and decentralized regulator design make thesystem show the composition flexibility and realize fault isolation, so thatthe failures in single route power supply do not affect the regulator andoutput of power supply.
