HYZ- Series Complete DC power supply system overview
1.1 Product Use
HYZ series DC power supply devices produced by our company are widely used in power coal, iron and steel smelting, petrochemical and municipal buildings and other fields, providing stable and reliable DC power supply for high-low voltage circuit breakers and secondary equipment in power substation and distribution room of factories and mining enterprises.
1.2 Implementation of standards and procedures

1.4 System composition and main functional features
It mainly consists of AC power distribution, monitoring module, rectifier module, microcomputer insulation monitoring, battery inspection, buck silicon chain, flash alarm, DC feed and so on. It can also be flexibly combined according to the specific requirements of users.

Dc power supply system basic block diagram

  1. Describes the functions of the main unit
    Module unit function description: monitoring module, charging rectifier module, WZJ-1 microcomputer DC insulation monitoring system, WMX microcomputer maintenance-free battery detector, buck silicon chain loop, DC converter, inverter, valve-controlled sealed lead-acid maintenance-free battery.
  2. Typical scheme design
    3.1 Overview
    Battery capacity and service life are two important indicators of battery selection, battery selection should pay attention to the performance difference between different manufacturers, generally imported batteries have high reliability and long service life (up to 18 years), but the price is more expensive. Users can make a reasonable selection according to the importance of the project and the cost performance. Because the current circuit breaker opening current and normal load current is small, the capacity of battery and rectifier module is greatly reduced than the previous selection, and the use of buck silicon chain is also greatly reduced. Because the rectifier module has N+1 backup, two separate sets of rectifier modules are rarely used to reduce investment. For 6KV, 10KV small and medium-sized systems generally do not consider installing flash devices. Therefore, our company fully considered the above factors in the selection design.
    The following are recommended several commonly used typical design schemes for users and design institutes to select a reference.

3.2 Scheme Design
The solution design is detailed in technical support HYZ series DC power system.pdf

  1. Product packaging, transportation, storage instructions
    4.1 Packaging, transportation and storage of products

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