LY-LXQ Series Nonlinear Resistor Harmonic Damping Device for Neutral Point of 6-35kV Voltage Transformers (Primary Harmonic Eliminator for short)
This device is installed between the neutral point of the primary winding (Y₀ connection) and ground of 6-35kV voltage transformers (hereinafter referred to as PTs). It functions as a nonlinear resistor harmonic damping component specifically designed for neutral point applications.
Material & Manufacturing ProcessIt seems that there is no text provided for translation. Please provide the text you would like me to translate.
The harmonic eliminator utilizes ultra-fine particle silicon carbide (SiC) with superior electrical properties as its base material. The manufacturing involves:
- High-density compaction of SiC powder using multi-ton presses to form rectangular or disc-shaped blanks
- High-temperature sintering (>1,000°C) under reducing atmosphere to achieve optimal material density
- Special surface treatment of exposed resistors for weather resistance, enabling direct outdoor/indoor installation without enclosure
Technical AdvantagesIt seems that there is no text provided for translation. Please provide the text you would like me to translate.
- Compact Design: 40-60% smaller footprint than traditional solutions
- Lightweight Construction: 30-50% weight reduction vs. equivalent porcelain-type devices
- Enhanced Thermal PerformanceIt seems that there is no text provided for translation. Please provide the text you would like me to translate.
- Thermal conductivity: ≥80 W/(m·K)
- Maximum operating temperature: 155°C (IEC 60068-2-2)
- Mechanical RobustnessIt seems that you haven't provided any text to translate. Please provide the text you would like me to translate, and I'll be happy to assist you!
- Compressive strength: ≥200 MPa
- Impact resistance: IK10 (IEC 62262)
Application FeaturesIt seems that there is no text provided for translation. Please provide the text you would like me to translate.
- Effective Harmonic SuppressionIt seems that there is no text provided for translation. Please provide the text you would like me to translate.
- Damping range: 50Hz-2kHz
- Resonance attenuation: ≥30dB @ 3rd harmonic
- Environmental AdaptabilityIt seems that there is no text provided for translation. Please provide the text you would like me to translate.
- IP67 rated (IEC 60529)
- UV resistance: QUV-B 3000h (ASTM G154)
- Maintenance-Free OperationIt seems that there is no text provided for translation. Please provide the text you would like me to translate.
- MTBF: >200,000 hours (MIL-HDBK-217F)
- Self-cleaning surface design
Typical ApplicationsIt seems that there is no text provided for translation. Please provide the text you would like me to translate.
- Neutral point grounding of 6/10/20/35kV PTs in substations
- Ferroresonance suppression in ungrounded/compensated systems
- Overvoltage protection for capacitor voltage transformers (CVTs)
Compliance StandardsIt seems that you haven't provided any text to translate. Please provide the text you would like me to translate, and I'll be happy to assist you!
- IEC 61869-1:2020 (Instrument transformers - General requirements)
- GB/T 20840.7-2007 (Mutual inductors - Part 7: Electronic voltage transformers)
- DL/T 866-2015 (Technical conditions for voltage transformers)