Harmonic Analysis of Norwegian Power System

Power is a crucial aspect of daily living in the contemporary world. Most objects we use daily are powered in some way. To provide electricity to people in a safe and reasonable manner, we must employ the greatest power systems available. Harmonics raise the RMS of the current flow in the circuit, increasing the loss. This resulted in various issues with the electricity systems. Harmonics can have an impact on the whole distribution system, right down to the loads. Harmonics can also harm delicate appliances and equipment in your office or factory. Harmonic defects may not always manifest themselves immediately, and it is sometimes difficult to distinguish from natural wear and tear on the item.

Define Harmonic Distortion

Harmonic difficulties, due to their tiny size, might make the power supply less dependable. Electric current and voltage harmonics cause problems in power systems. When there are a lot of harmonics in the power supply, equipment might fail or stop working properly. Harmonics, or variations in the shape of the current waveform, are often induced by a nonlinear load in the electrical system. Non-linear loads and harmonics are created in power systems by devices such as personal computers, variable speed motors, driven motors, fax machines, laser printers, Switch-mode power supplies (SMPS), batteries, and uninterruptible power supply (UPS).

Why Is Harmonic Analysis Required?

Harmonic makes electricity systems less efficient and less reliable. The dependability of your power system will improve if you utilize harmonic analysis to discover harmonics in your power system. As more power electronics equipment is employed, currents that do not flow in a straight-line result. Harmonics were produced because of the loads in the systems. Equipment and equipment must consume less electricity and fulfil energy efficiency criteria.

When Did Harmonic Analysis Become Significant?

The harmonic limitations must be verified if the total load or bus system readings exceed 25% of the total load.
To repair problems caused by harmonics, such as equipment damage or malfunction.
When will the plant be expanded, and how many non-linear loads will be added?
When an additional capacitor bank is introduced to the electrical systems, harmonic analysis is required.

THE EQUIPMENT’S DESIGN	A HARMONIOUS OUTCOME.
Equipment that rotates	More cable resistance, power loss, overheating, and pulsing torque.
Power cables, a switchboard, and a transformer are all required.	Overheating, excessive use, overloading the neutral, and power outages are all symptoms of a problem.
Capacitors electriques	A lot of contemporary events are going wrong
Electronic energy	Failure to perform well
Safeguarding relays	Bad habits and vexing trips

When a sinusoidal waveform encounters a nonlinear load, distortion and harmonic generation occur in the system. Harmonic analysis is frequently required when it is necessary to determine whether or not there are harmonics in the system.

Advantages of Eliminating Power System Harmonics:

Harmonic analysis minimizes running expenses by reducing the amount of power wasted via cables, switch gears, and safety devices. It also aids in the reduction of power system losses.
Lower capital costs: It reduces the RMS current in the power system and aids in the removal of oversize transformers, requiring less cable, switchgear, and busbars.
Performance of the business: When losses are reduced and the RMS current value is reduced, performance improves naturally. Harmonics increase losses, raise the RMS value of current, and cause cables, transformers, motors, and capacitors to overheat. The outcomes will be poor, and you may be forced to halt a procedure or lose money as a result.

Procedure for Conducting a Power Quality Analysis:

Create a one-line diagram to depict the non-linear loads.
Keep an eye out for the common connection point (PCC).
Draws attention to the buses inside the facility that might be impacted by harmonics.
Gather as much information as you can concerning non-linear loads and the utility company’s previous harmonics performance.
Create a mock-up utilizing ETAP (Electrical Transient Analysis Program) software and the electrical system’s performance.
Examine the amount of voltage, current distortion, and the harmonics.
If the degree of harmonic distortion is too great, choose a solution.
After implementing the mitigation strategy, repeat the harmonic analysis to ensure CEC compliance.

CareLabs provides its professionals with the most up-to-date instruments so that they can ensure the safety of your electrical equipment and provide you with a safe working environment. Learn more about CareLabs’ harmonic research and analysis services and get a quotation today.