Product Details
Line trap
Our wave trap surgically remove specific interference frequencies (e.g., 50/60Hz hum, RF noise). Featuring high Q factor and steep attenuation, they eliminate unwanted signals while protecting adjacent frequencies—boosting SNR, dynamic range, and system reliability in audio processing, RF design, and test & measurement applications.
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Line trap
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Details
What is a Line trap?
Line traps are critical PLC components that direct carrier signals efficiently along transmission lines toward remote terminals, isolating them from disruptive station bus impedance variations.This ensures reliable PLC communication for mission-critical protection and telemetry.
Functionally, a line trap acts as a high-impedance parallel resonant circuit, precisely tuned to the carrier frequency (e.g., 30-500 kHz). This blocks carrier energy from entering the substation bus, forcing flow toward the remote line end. Simultaneously, its heavy-duty coil provides a near-zero impedance path for high-current power frequency (50/60 Hz) energy, maintaining grid power flow.
Once injected onto the line, the carrier signal experiences attenuation and noise during long-distance transmission. At the receiving terminal, an identical wave trap decouples the PLC signal for processing. Precise component selection and tuning of the wave trap, coupling capacitor, and line tuner are essential for optimal PLC channel performance across high-voltage transmission networks.
Description | Units | XZK-2000-0.5/40 | XZK-2000-1.0/40 |
Rated maximum voltage | kV | 252 | 252 |
Working Temperature range | C | -40 ～ 40 | -40 ～ 40 |
Design Voltage |
| 252 | 252 |
Inductance | mH | 0.5 | 1 |
Blocking Frequency | kHz | 160-500 | 84-500 |
Blocking Resistance | Ω | 570 | 570 |
Current | A | 2000 | 2000 |
Thermal shortcircuit current | kA | 40 | 40 |
THERMAL DURATION | s | 1 | 1 |
Dynamic shortcircuit current | kA | 102 | 102 |
Radio-interference | uV | <250 | <250 |
Radio-Interference Testing Voltage | kV | 167 | 167 |
Mounting |
| Pedestal | Suspension |
Conductor material |
| Aluminum | Aluminum |
Weight | kg | 345 | 560 |
Dimmensions | mm | 1342 | 1342 |
Class of insulation |
| B | B |
Altitude | m | <1000 | <1000 |
Design & Construction – Line Trap
1. Main Coil: Engineered for Unmatched Power Handling & Long-Term Reliability
Quality Power's rugged main coils are the backbone of your transmission line, built to excel under extreme grid demands.
Uncompromising Durability: Resin-encapsulated construction and IEC 60353 compliance guarantee high mechanical strength and withstand harsh substation environments.
Superior Efficiency: Dry Q Coil Technology and optimized design deliver the lowest losses, minimizing energy waste and heat generation.
Enhanced Signal Integrity: Self-resonant frequency >500kHz prevents interference with critical carrier signals.
Operational Resilience: Class F insulation, low temperature stress, and robust weather-resistant construction (UV paint, RTV coating) ensure reliable performance over decades.
Easier Installation & Integration: Compact dimensions, adaptable mounting, and lower weights significantly reduce installation complexity and cost.
2. Tuning Device: Precision Performance & Resilient Carrier Signal Blocking
Our advanced tuning devices deliver consistently high impedance at carrier frequencies, ensuring signal isolation regardless of grid conditions.
Guaranteed High Impedance: Forms a robust band-stop filter with the main coil, effectively blocking carrier currents (50-500 kHz) even at resonance points.
Flexible Configuration: Choose single-band or multiple-band tuning within a single, compact unit for versatile application needs.
Weatherproof Reliability: Resin/foam-filled, weatherproof enclosures protect high-quality tuning components (capacitors, resistors, inductors) from moisture, contamination, and temperature extremes.
Built to Last: Resin encapsulation, dielectric testing, and high-temperature tolerance ensure stable, long-term high-frequency performance.
Compact & Sturdy Design: Simplifies integration and withstands physical stresses in demanding substation locations.
3. Protective Device: Robust Defense Against Transient Threats
Safeguard your critical line trap investment with our high-performance protective devices.
Comprehensive Surge Protection: Polymeric arresters (gapless or gapped) compliant with IEC 60099 provide reliable transient overvoltage protection for both the tuning device and main coil.
Optimized Safety: Precise insulation coordination between the arrester and main coil ensures dependable operation during lightning strikes and switching surges.
Lightweight & Compact Construction: Simplifies installation and integration without compromising protective capability.
Polymeric Durability: Ensures long service life and resistance to environmental degradation.
Application of Line traps & DKNC cooperation projects
Case 1: Brazil Belo Monte UHV Phase II Project
Partner: State Grid Brazil
Requirement: ±800kV DC line carrier communication to resist strong electromagnetic interference
Solution: Application of DC bias suppression type wave arrester (nanocrystalline magnetic core + intelligent temperature control, impedance fluctuation <5%)
Result: 2500km line PLC channel zero interruption, saving $3 million in relay station construction costs
Case 2: Indonesia Jakarta-Bandung High-Speed Railway Traction Power Supply System
Partner: PT Len Railway Systems
Requirement: Block 2-20kHz harmonic interference between 25kV power supply network and signal system
Solution: Customized broadband damping wave arrester (stop band 1-50kHz, seismic resistance IEC Class 8)
Result: Communication bit error rate in key sections dropped to 10⁻⁹, ensuring safe operation of 160km/h high-speed
In addition to the production of reactors,DKNC also provides a wide range of high-quality electrical products and professional solutions for the generation, transmission, and distribution segments of the industry. The company's offerings include reactors, insulators, line traps, capacitor banks, smart respirator, electronic dog, drone inspection equipment among others. The company's success is attributed to its competitive prices, on-time delivery, highly qualified and dedicated employees, advanced technology, and overall superior quality.
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Our wave trap surgically remove specific interference frequencies (e.g., 50/60Hz hum, RF noise). Featuring high Q factor and steep attenuation, they eliminate unwanted signals while protecting adjacent frequencies—boosting SNR, dynamic range, and system reliability in audio processing, RF design, and test & measurement applications.
Address: 902-903, Building 1, Yard 15, Xinya Street, Daxing District, Beijing, China
135-8888-9999
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