What are the main differences and functions between DC screens and AC screens? These are all considerations we need to take into account. So, what's the specific situation?

One: Different Definitions.

The AC Distribution Panel (abbreviated as AC Panel) consists of branch switch control cabinets, typically including voltmeters, ammeters, switches (or automatic switches), fuses, signal lights, and wiring, tailored to different electrical equipment and power consumption levels. It can monitor total voltage and current or branch voltage and current usage within the entire power system, allowing for the switching of branch circuits as needed.

Direct current screens are primarily used to provide direct current power to high-voltage switching mechanisms, control systems, comprehensive protection, instruments and meters, and accident lighting.

Photo of an electrical switchgear room

II. Output Variations.

Input power for both AC screens and DC screens is AC power; the difference lies in the output, with AC screens outputting AC power and DC screens outputting DC power.

After the AC power outage, the AC panel failed to produce output, while the DC panel continued to supply DC power.

III. Nature Differences:

The AC screen is essentially a low-voltage distribution cabinet, converting AC to AC, typically paired with a DC screen to provide power distribution for the DC screen and the power distribution room.

A DC screen converts AC to DC for battery charging, and when the municipal power supply is interrupted, it supplies power to the busbar through the battery bank, powering the high-voltage switching mechanism, control systems, and comprehensive protection.

Four: Different Applications

The function of the communication screen is to display the operational status of various high and low voltage distribution cabinets, typically featuring current and voltage readings, as well as switch opening and closing indicators.