Zte rectifier manual

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Under the market pressure, the high performance, high reliability and low cost have become the three important principles for the survival of power supplies. The system is an integration of AC power distribution unit, rectifier, DC power distribution unit, environment monitoring unit and monitoring unit. As a kind of intelligent unmanned combined power supply system, it can be widely used for various switching equipment, microwave telecommunication, mobile base station and optical fiber transmission in the telecommunication field.

The system can be divided into four layers, i. DC power distribution unit, monitoring unit, rectifier and AC power distribution unit. The following is the detailed description:. The upper layer is DC power distribution unit, which is mainly responsible for the functions such as distribution and protection of DC output, access and protection of batteries.

The system can be accessed with three groups of batteries. When the failure occurs in the AC input or the rectifier group fails to provide the DC power, the battery group will offer the power supply for the DC loads and the monitoring unit so as to ensure the uninterrupted work of electrical equipment.

The monitoring unit, the core of the system, is in charge of the comprehensive management of the system in respect of AC power distribution, DC power distribution, rectifier group, batteries and environment. The monitoring unit collects the real-time operation data of the system, monitors the working state of the system, sends voice or light alarms in case of the system fault, and offers necessary protective measures.

The LCD display and the LED indicator on the panel of monitoring unit can display the output current, output voltage, battery current of the system and various alarm information; and at the same time they can realize the necessary controls by setting certain necessary parameters on the keyboard of the panel.

The monitoring unit also receives the commands from the upper computer to complete the inquiry and control of the system, thereby realizing the "three remote" functions. The rectifier unit located at the middle of the rack is arranged in two layers with 5 slots in each layer, and the rectifier unit can be configured with the maximum of 10 rectifiers. The AC power distribution unit located at the bottom of the rack implements the lightning protection of AC input, multiple-channel AC input switching and three-phase AC distribution.

Besides, it also provides test signals for the monitoring unit. According to different requirements of the users, the AC input can provide single channel manual switching mode, dual channel manual switching mode and dual channel automatic switching mode.

The system has complete batteries management functions: It can compensate the batteries in terms of temperature, and implement the float charging management for the batteries.

Moreover, the system provides the secondary discharge protection functions. The strict discharge protection management has the dual protection mode of both software discharge and hardware discharge. The secondary discharge categorizes DC loads into two groups according to their significance; the battery group provides the power supply to the loads in case of AC power failure.

The monitoring unit implements twice removals of the loads according to the depth of battery discharging and the significance of the loads, thus not only protecting the batteries from over-discharging but also ensuring the work time of the important equipment to be as long as possible.

The complete batteries management functions can prolong the lifespan of batteries to the maximum extent. ZXD V3. The rectifier measures only mmX87mmXmm heightXwidthXdepth and weighs about 6.

The input circuit includes input EMI, buffering start, surge and lightning protection rectifier, and input surge current suppression circuit. Used to set the output state rectifier. Power cycle is set to floating state. In one system, the number used to identify each rectifier rectifier centralized control. This parameter need to be adjusted when the component systems. Figure after the rectifier panel Figure 5.

Respectively, then the battery positive and 2 negative, positive and negative loads. In connection should be wired according to a sign on the rear panel. Short wiring using ordinary signal cable. The rectifier rectifier module is installed into the rack position; 3. The rectifier is inserted in the end even slow; 4. Check the AC input, serial cable, all flow lines, the DC output jack is properly connected; 5. Tighten the four captive screws on the panel and the rack; 6. Close the AC input switch; 7.

When the step rectifier failure or other reasons may need to replace rectifier, rectifier demolition follows System Power Off : 8. Unplug the AC input rectifier; Unplug the DC output rectifier; If all flow lines, serial line should be removed; The panel of four fastening screws rectifier unloading; The rectifier uniform slowly withdrawn.

When used with multiple power should maximize the positive power shelf space, where conditions permit, it is best to install air conditioning or exhaust fans and other equipment. Each rectifier during system installation parameters have been adjusted, generally without further adjustment. Need to prepare to run the daily operation of the rectifier records once a year to maintain the need for testing.

Rectifier failure can not run, the processing method, see the manual "Troubleshooting" section. And LCD display panel lights when not lit, check the AC power is normal, the input switch is closed, if the normal AC input, the input switch is closed, there is still no indication and LCD indicator, the rectifier is faulty.

If the indicator with LCD correctly, you can make the appropriate treatment of the liquid crystal display according to the message. Treatment as shown in Table But need to check whether caused by abnormal load limit, if the output voltage is too low, you should reduce the load to protect the rectifier and load.