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Distinguishing and judging methods and solutions of three-phase voltage unbalance

Distinguishing and judging methods and solutions of three-phase voltage unbalance

Using SVR line automatic voltage regulator to solve the low voltage problem of 10kV line

Using SVR line automatic voltage regulator to solve the low voltage problem of 10kV line

Three trends of intelligent terminal distribution industry and technology development

Three trends of intelligent terminal distribution industry and technology development

Development prospect of electric industry in China

Development prospect of electric industry in China

China's high and low voltage electrical products are mainly sold in the domestic market

China's high and low voltage electrical products are mainly sold in the domestic market

Thoroughly dissect and decompose the detailed structure of three-phase asynchronous motor

Thoroughly dissect and decompose the detailed structure of three-phase asynchronous motor

Distinguishing and judging methods and solutions of three-phase voltage unbalance

There are many reasons for three-phase voltage imbalance,such as single-phase grounding,broken line resonance,etc.the operation management personnel can quickly deal with them only by correctly distinguishing them.

2021

08-20

Using SVR line automatic voltage regulator to solve the low voltage problem of 10kV line

To solve the problem of"low voltage"of rural power lines,the following measures are taken at present:the cross-sectional area of newly-built conductors;Adjust the main transformer tap of the substation to change the system voltage;The reactive power compensation equipment is reasonably distributed in the system to improve the reactive power flow distribution of the power grid;Reconstruct the line and increase the load of the pump station;Increase the number of outgoing lines of the substation to share the load of the original line.The above measures have the following problems.

2021

08-20

Three trends of intelligent terminal distribution industry and technology development

In recent years,the power distribution industry in China has developed rapidly.In addition to strictly complying with the engineering standards,designers also need to constantly deepen their understanding and mastery of the new trends of intelligent equipment and technology,so as to ensure that the increasingly strict demands of customers can be met to a large extent while providing products with guaranteed quality.According to my professional design experience in the power distribution industry for more than 20 years,the intelligent terminal power distribution system can become a benchmark product in the industry and lead the development direction of the power distribution industry in the future only if it has made breakthroughs in safety,diversity and innovation.

2021

08-20

Development prospect of electric industry in China

In the next three years,300 billion yuan will be invested in rural power grid transformation.Premier Wen Jiabao of the State Council presided over an executive meeting of the State Council on January 5,and decided to implement a new round of rural power grid transformation and upgrading projects.The meeting proposed to increase financial support.The capital funds for the rural power grid transformation and upgrading projects in the central and western regions are mainly arranged by the central government.We will continue to implement the policy of charging 2 cents per kilowatt hour of electricity

2021

08-20

China's high and low voltage electrical products are mainly sold in the domestic market

As the investment in new energy industry,high-tech industry,advanced equipment manufacturing industry and real estate development is significantly accelerated,and the demand for industrial power distribution automation and intelligent civil power distribution is increased,the market prospect of high-voltage and low-voltage electrical complete equipment is broad.

2021

08-20

Thoroughly dissect and decompose the detailed structure of three-phase asynchronous motor

The three-phase asynchronous motor is composed of two basic parts,a fixed stator and a rotating rotor.The rotor is installed in the inner cavity of the stator and supported on the two end caps by means of bearings.In order to ensure that the rotor can rotate freely in the stator,there must be a gap between the stator and the rotor,which is called air gap.The air gap of the motor is a very important parameter.Its size and symmetry have a great impact on the performance of the motor.

2021

08-20

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