អ្នកបច្ចេកទេសអគ្គិសនី - Electrician

09/06/2026

Understanding the right MU (Metering Unit) CT
https://forumelectrical.com/current-transformer-testing-and-validation-checklist/

Ratio selection is very important for accurate energy measurement, smart metering efficiency, and transformer load management.

Selecting the proper CT ratio helps in:

Accurate billing & metering

Better load monitoring

Avoiding CT saturation during peak load

Improving system reliability

Future load expansion planning

simple thumb rule:

Calculate Transformer Full Load Current (FLC)

Choose the next higher standard CT Ratio

Ensure proper meter operating range & accuracy class

Proper CT selection plays a major role in the success of Smart Metering & AMI projects across utilities and DISCOMS.

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https://forumelectrical.com/current-transformer-testing-and-validation-checklist/

06/06/2026

02/06/2026

Triple-Parameter Model:
The Triple-Parameter Model is used to represent medium-length transmission lines in power systems. Instead of analyzing a real transmission line with all its physical properties, engineers use an equivalent circuit that includes three important parameters: Resistance (R), Inductance (L), and Capacitance (C).
Resistance (R) represents the opposition to current flow in the conductor. It causes power loss in the form of heat and reduces the overall efficiency of power transmission.
Inductance (L) is created by the magnetic field around the transmission line when current flows. It contributes to the line's reactance and affects voltage regulation and power transfer.
Capacitance (C) exists between the conductors and between the conductors and ground. It stores electrical energy in the electric field and causes charging current to flow even when the line is lightly loaded.
By combining R, L, and C into a simplified model, engineers can accurately analyze transmission line performance, voltage drop, power losses, and system stability. The Triple-Parameter Model provides a practical balance between simplicity and accuracy, making it an important tool in power system design and analysis.

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29/05/2026

23/05/2026

EV Charging Price by EAC and charging station for EV keep increasing increably.

22/05/2026

High Rupturing Capacity Fuse- HRC Fuse.

22/05/2026

ស្វែងយល់ឱ្យកាន់តែច្បាស់ពីប្រព័ន្ធសូឡាលើដំបូល

04/02/2026