Explanation of power terms related to UPS power supply

Filter: A device used to eliminate noise, filtering the input or output to obtain pure alternating current.

Shielding: A means of isolating and blocking electromagnetic radiation using physical principles.

Lightning tube: It is a high-voltage protective component used at the input end of equipment. If the voltage at both ends exceeds its protection specification value, there will be a short circuit phenomenon inside it and absorb the input overvoltage.

Apparent Power: VA, the change in power is absolutely related to the voltage and current of RMS (ROOT MEAN SPUARE).

Datamachine: This device is a device that converts analog signals from a telephone line into digital signals that can be read by a PC, or converts digital signals from a PC into analog signals for easy transmission over a telephone line.

Random Access Memory (RAM): Dynamically stores data required by the CPU.

Simple Network Management Protocol (SNMP): It is a widely used network management protocol that can help network administrators manage various devices in TCP/IP networks, without complex instructions. In basic concepts, there are only two types of instructions: FETDH-STORE (storage fetch). Simplicity, stability, and flexibility are its major advantages.

Instantaneous voltage drop: Some may last from a few milliseconds to hundreds of milliseconds. If the voltage drop persists for a long time or frequently occurs, it can cause computer and electrical equipment malfunctions and reduce their lifespan.

Phase locked circuit: A technical specification of phase locked speed, which is based on the principle that when the input voltage enters the UPS, the UPS will control the frequency of its output power supply to be the same as the input power supply frequency, thereby achieving the same input and output frequency and no time difference in phase. However, when there is a time difference between the output frequency and the input frequency, the UPS is powered by the battery or does not output power to the load.

Three phase: the standard power system is a three-phase power supply. The first phase is a sine wave with a phase difference of 120 degrees, while the single phase is just one of the three phases.

Input voltage range: The range within which UPS allows for changes in mains power. The larger the range, the better the adaptability of UPS

Zero line: in single-phase power supply system, the function of the zero line is to conduct feedback current, which is distributed in the same area with the socket end and grounding.

Distortion: Distortion is divided into waveform distortion, voltage distortion, etc. Whether it is volume distortion, it is calculated as a percentage, and its magnitude is related to harmonics, voltage, current, and power factor. (Refer to HARMONIC)

Mains power: We refer to alternating current (AC), which includes voltage, current, and frequency. The frequency can be divided into two types: 50HZ (Hz) and 60HZ (Hz), with a voltage distribution ranging from 100VA-240VA. Normally, the normal AC waveform is a sine wave, but hiring