Although there are many factors affecting the power system, the causes of normal imbalance are mostly caused by three-phase components, line parameters or load asymmetry.
Although there are many factors affecting the power system, the causes of normal imbalance are mostly caused by three-phase components, line parameters or load asymmetry. Since the three-phase load factor is not necessary, the three-phase voltage and current of the power supply point are prone to imbalance and loss of the line. Even the motor on the power supply point will have an adverse effect, jeopardizing the normal operation of the motor.
The reasons why the three-phase unbalance affects the motor are as follows. Dalan Motor will analyze it with you:
1. Unreasonable distribution of three-phase load.
1 Some of the workers who installed the meter did not have a professional knowledge of the three-phase load balance. Therefore, they did not notice the three-phase load balance when they were connected. They only blindly and randomly connected the circuit. Charge loading, which largely causes an imbalance in the three-phase load.
2 Most of the circuits in China are mixed with power and lighting. Therefore, when using single-phase electrical equipment, the efficiency of electricity consumption will decrease. This difference further exacerbates the imbalance of three-phase load of distribution transformers. situation.
2. Constant changes in electrical load.
1 The cause of unstable power load includes the frequent demolition of the address, the increase in the number of users who move the meter or use electricity;
2 Temporary electricity and seasonal electricity instability.
3 The uncertainty and inconsistency in total and time make the load of electricity have to change according to the actual situation.
3. The weakening of the monitoring force for the distribution load.
1 In the management of the distribution network, management problems in the three-phase load distribution are often ignored.
2 In the detection of the distribution network, the three-phase load of the distribution transformer is also not regularly detected and adjusted.
4. In addition to the above, there are many factors that cause three-phase unbalance, such as the influence of the line and the difference in the three-phase load moment.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
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