Passive Harmonic Filter
Harmonic Reduction
Equipment Protection
Reliability & Durability
Cost-Effective Solution
Power Factor Correction (PFC)
Passive Harmonic Filters
Passive Harmonic Filters are electrical devices designed to reduce harmonic distortion in power systems by providing a low-impedance path for specific harmonic frequencies. They consist of passive components (inductors, capacitors, and resistors) tuned to target and mitigate harmful harmonics generated by non-linear loads such as VFDs, rectifiers, UPS systems, and LED lighting.
Key Features & Benefits:
Harmonic Elimination – Absorbs or diverts 5th, 7th, 11th, 13th (and higher) harmonics per IEEE 519 & IEC 61000-3 standards.
Power Factor Correction (PFC) – Improves PF by compensating reactive power (optional feature).
Voltage Stabilization – Reduces voltage distortion (<5% THDv) for sensitive equipment.
No External Power Required – Simple, robust, and maintenance-free (no active electronics).
Cost-Effective Solution – Lower upfront cost compared to active filters for fixed harmonic issues.
Applications of Passive Harmonic Filters
1. Industrial Motor & Drive Systems
2. Renewable Energy Systems
3. Commercial & HVAC Systems
4. Data Centers & IT Infrastructure
5. Oil & Gas / Mining Operations
6. Healthcare & Laboratories
Passive Harmonic Filters Technical Specifications
|
Technical Specification |
Details |
|
Voltage Range |
208V–13.8kV (low/medium voltage) |
|
Frequency |
50/60 Hz (±10%) |
|
Tuned Frequencies |
Customizable (e.g., 250 Hz for 5th harmonic) |
|
Efficiency |
>98% |
|
Installation |
Parallel connection to the load/grid |
|
Standards Compliance |
IEEE-519, EN61558-2-20,EN60076-6 |
Why Choose LTEC's Passive Harmonic Filters?
LTEC – Powering Your Systems with Innovation!
Superior Harmonic Mitigation
THD Reduction: Achieves sub-8% Total Harmonic Distortion (THDi/THDv) for compliance with IEEE 519 and IEC 61000-3-6 standards, similar to high-performance filters like KEB's Z1 series.
Targeted Filtering: Uses single-tuned, double-tuned, or C-type high-pass designs to eliminate specific harmonics (e.g., 5th, 7th, 11th).
Motor and Equipment Protection
Reduces dV/dt Stress: Minimizes voltage spikes and bearing currents in motors, extending lifespan.
Prevents Overheating: Lowers harmonic losses in transformers and capacitors, as demonstrated in HVDC applications.
Energy Efficiency & Cost Savings
Reactive Power Compensation: Improves power factor (up to 0.95+) while filtering harmonics, reducing utility penalties.
Passive Design: No active components or external power required, ensuring low maintenance and high reliability.
Robust Industrial Design
Delta-Configured Capacitors: Enhances phase symmetry and protects against voltage surges during phase failures, a feature highlighted in KEB's filters.
Modular Sizing: Available in Compliance & Certifications.
Compliance & Certification
Likely adheres to UL, CE, and CCC standards, ensuring global market access and safety, akin to Schaffner's EMC filters.
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