Compensation issues for the factory site
Thread Content
For the construction of the new factory, it is planned to introduce a 10KV voltage level, in accordance with the compensation requirements set by the Ministry of Electricity； Originally, I planned to perform capacitive compensation only on the low-voltage side. However, there are now 10 kV high-voltage motors in use, and I’m concerned that the power factor might be insufficient. Should the compensation be carried out collectively on the high-voltage side instead? Should it be low-voltage compensation plus on-site compensation for the high-voltage motor? Is it still a high-voltage motor without compensation? Considering the harmonic problem and the need to connect a 6% shunt reactor, does this increase or decrease the actual compensating capacity of the capacitor in terms of calculations? I saw on the internet that there are both increases and decreases? What should I do? The voltage increases when reactance is added; how should the power-selecting components be chosen?
Reactive power compensation certainly needs to be carried out separately for high voltage and low voltage; I’m not sure about other issues.
For the construction of the new factory, it is planned to use capacitor compensation only on the low-voltage side. For 10 kV high-voltage motors, the power factor on the high-voltage side certainly cannot reach 0.9; therefore, both low-voltage and high-voltage compensation are necessary, along with a 6% series reactor. This has almost no impact on the calculation of the actual capacitance required for compensation, so it can be ignored.
We’ve learned it – the capacitor compensation used in our factories is just a shoddy version
It’s not that complicated; just rely on motor compensation, and integrate it with the motor interlocks
Each distribution room is equipped with a capacitive automatic compensation cabinet