Electrical Power Factor in Schematic Diagram

Electrical Power Factor in Schematic Diagram

Power Factor Formula in Diagram and BERC Code

Everyday we use electrical energy for industrial, commercial or residential purpose and paying bill to the utility department end of the month. Maximum of us do not think, we are paying extra money bill of our used just because of power factor. Simply look at the following diagram, our using amount is kW, unusable amount is kVAR; but we are paying for sum of both is kVA, just case of a mug of drinks.

Electrical Power Factor in Schematic Diagram

Of course there is a solution. It you are a intelligent, you will pour your drinks soft and gently which makes less loss. Similarly taking necessary action to correction the power factor, we can reduce  electrical power waste or loss.



Electrical Power Factor in Schematic Diagram



Generally we use 3 types of load. Resistive, Inductive and Capacitive. Resistive load has no effect for power factor, mainly resultant induvtive load  causes of waste of power. Capacitive load character is just opposite the inductive load. So, using capacitive load as a counter of inductive load power factor improvement is possible.

Hope you gather some basic knowledge about today's topic  Electrical Power Factor in Schematic Diagram. We will try to more topic next time.


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Bangladesh Electricity Distribution Code Published by Bangladesh Energy Regulatory Commission

The consumer of applicable category declared by the Commission shall so 73 arrange his installation that the average power factor of his load during any billing period is maintained not less than 0.95 lagging or any other limit set by the Commission. 

Power factor penalty with or without capping limit as set by the Commission shall be levied if there is a breach of the aforesaid requirement, however, the supply of power shall be disconnected serving 7(seven) days notice for rectification if the average power factor in 3 consecutive billing cycle falls below 0.70 : 

If, after considering the reply to the show causes notice, the Authorized Officer decides to disconnect, he shall communicate his order to the consumer and disconnect supply after 7(seven) days of such communication. 

Instantaneous Power Factor reading may be recorded for monitoring but shall not be used for billing purpose. Power Factor penalty shall not be applicable where kVArh meter is not available or functional.

Provided that there shall be no disconnection without giving the consumer 7(seven) clear days notice in writing to show cause to the Authorized Officer why the supply of power should not be disconnected. 

Power Factor shall be determined for the entire billing period by utilizing kWh and kVArh for the respective months. 

However, Power Factor of Master/Mother/Check Account shall be determined by deducting the Σ kWh and Σ kVArh of Child/Supplementary/Sub-Account(s). In absence of Σ kVArh of Child/Supplementary/Sub-Account(s), the kVArh of Master/Mother/Check meter shall be calculated in proportion of kWh.

3 comments:

  1. Ah, the dreaded home inspection. For the seller, it can be suspenseful as they wait for the report to come back with any items that need to be fixed.
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  2. By reducing your power system’s demand charge through power factor correction, your company is putting less strain on the electricity grid, therefore reducing its carbon footprint. Over time, this lowered demand on the electricity grid can account for hundreds of tons of reduced carbon production, all thanks to the improvement of your power system’s electrical efficiency via power factor correction.

    ReplyDelete

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