PDU classification
PDU classification of ordinary PDU, using all aluminum alloy structure, has better flame retardant performance than plastic body, advanced spray process corrosion resistance long life, shielding more electromagnetic interference. 02 high voltage direct current PDU, it has many advantages, first of all, direct current supply has only one parameter of voltage amplitude, there is no problem of phase, phase sequence and frequency synchronization between each direct current module, the system structure is much simpler, the reliability is greatly improved; Compared with the AC UPS system, the DC power supply saves the INVERTER link, and the loss of the general inverter is about 5% , so the efficiency of the power supply can be improved, there is no power factor and harmonic problem, reduce the line loss. 03 anti-lightning PDU, cabinet socket PDU in the lightning protection is not direct lightning, but anti-surge between electrical appliances, lightning protection induction high current, belongs to three-level lightning protection. Add lightning protection module to avoid transient surge, protect power equipment in computer room, enhance impact current, improve equipment protection. 04ATS PDU, dual power switch PDU can provide redundant power supply for the connected equipment, when one power supply fails, it can automatically switch to another power supply for power supply, which can improve the reliability and availability of power consumption at the end of the machine room. 05 intelligent PDU, also known as remote power manager, it can through the Ethernet interface or RS232 interface to monitor, control, display, management of electrical parameters of the Power distribution unit. The monitoring object includes the total current of PDU, the output current of PDU, the voltage, the power factor and the switch state of PDU. In addition, the intelligent PDU can realize the more strengthened IT equipment electricity security through the intelligent protection measure, therefore has the remarkable enhancement compared with the ordinary PDU in the security aspect.