December 3, 2024

Graftech

● Situated in Apodaca, Nuevo Leon, Mexico.

● Devoted to the manufacture of electrodes.

● They have been dealing with energy high quality issues.

Findings

● Inductive non-compliance 100% of the time.

● Excessive load variations.

● No compensation gear.

● A comparatively excessive degree of 2nd harmonic is current.

Resolution: Set up of two STATCOMs +/- 10 MVAr every

● ‍One STATCOM was put in for every of the 2 transformers.

● 36 MVA mains (230 – 13.8 KV).

● Quicker resolution for energy issue compensation.

● Energetic harmonic present filtering functionality.

● Much less space required per KVAR.

● Latest and most dependable know-how out there.

Why is STATCOM the perfect know-how?

● Tools responds dynamically to the load.

● Operation of the gear is by energy electronics.

● In comparison with its primary predecessor, the SVC, the STATCOM has a lot increased effectivity and efficiency.

Outcomes

● The STATCOM met the dynamic MVAr demand created by the variable load heart operation.

● A mean PF worth of 0.99 is met 100% of the time.

● Enhancements in energy high quality parameters

● For voltage unbalance, a most worth of 0.171 % was obtained throughout the measurement interval, remaining under the two% restrict established within the Grid Code.

● Present unbalance had a most worth of 4.814 % throughout the measurement interval, remaining under the 15% restrict established within the CoR.

● The values of wierd and even single harmonic elements are inside the limits.

● Harmonic currents have been lowered, highlighting the 2nd harmonic present.

● The utmost THDD[%] worth within the measurement interval was 1.09 %, remaining under the restrict, which for this load heart is 3.75%.

● Flicker values for the ninety fifth percentile Quick Time period Voltage Swing Index (STFI) was 0.382 remaining under the Grid Code restrict of 1.0.

● Flicker values for the ninety fifth percentile Lengthy Time period Voltage Fluctuation (LTI) Index was 0.329 remaining under the Grid Code restrict of 0.80.

Advantages

● Grid code compliance.

● Longer helpful lifetime of plant gear.

● Decrease vitality and upkeep prices.

● Improved course of effectivity.

● Elevated manufacturing capability.

● Monetary bonus from the provider.

Do you could have related objectives?

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