Knowledge

For the existing photovoltaic power plants built and put into operation in the early stage, with the passage of the operation time of the power plant, the photovoltaic modules will

(4) How to Improve Three-Phase Unbalance 1. Pay attention to the reasonable distribution of three-phase loads On the distribution of three-phase loads, electric power workers shoul

(3) What are the hazards of three-phase imbalance 1. The power loss of the increasing line In the three-phase four-wire power supply network, when the current passes through the li

(2) What are the causes of three-phase unbalance? a. There are many reasons for the unbalanced three-phase voltage, such as single-phase grounding, disconnection resonance, etc. Th

Three-phase unbalance is an important indicator of power quality. Although there are many factors affecting the power system, most of the normal unbalance is due to three-phase com

Generally, it is explained that VA, W, and Var are not power, they are just units of power, which are units of apparent power (represented by S), active power (represented by P), a

When it comes to current transformers, everyone must be familiar with them. Its main function is to convert high values into low values, which is suitable for measuring instruments

We know that the secondary current of the commonly used current transformer is 5A. Under what circumstances should we choose 1A? The secondary load of the transformer is mainly the

Have you ever wondered why mobile phone charging plugs are larger than ordinary plugs? In fact, strictly speaking, this "plug" is called a switching power adapter, and th

Active power: In an AC circuit, the active power at each instant is different and constantly changing. Generally, the average active power (the average value of the power in a cycl

B. Three-phase is generally divided into three types of circuit breakers, namely 3P, 3PN, and 4P (1) Difference: 3P: There are only 3 wirings, which are only used for pure three-ph

3. Differences and applications of miniature circuit breakers A. For miniature circuit breakers, 1P+N, 1P, 2P are generally used as the on-off control of single-phase electrical ap