300 Meter Tethered Drone Power Box

　　Input voltage range: AC380V ± 20% 45Hz~65Hz

　　Output voltage range: 200-1000VDC (rated output voltage: 800V or 1000V)

　　Power: 30kw (optional 40-80kw)

　　Storage cable length: 360 meters meters meters

　　Tethered Drone Power System：

　　1. Advanced power conversion technology, with a typical efficiency of up to 96%, ensures stable and efficient power supply for drones during long-term flight.

　　2. The mooring box is equipped with intelligent automatic retraction and cable arrangement, and can also switch to manual mode by rotating the reel to retract and release cables. Configuring a 4.3-inch color screen with touch control is more user-friendly and convenient, with functions such as displaying box temperature, wire length, current and voltage, electricity consumption, torque adjustment, switching between Chinese and English, recording abnormal information, and a forced collection button. Relevant abnormalities will be promptly alerted through auxiliary reminders such as sound and light.

　　300 Meter Tethered Drone Power Box: Ultimate Guide to Performance and Operation

　　Unlock the full potential of high-altitude, persistent aerial operations with our 300 Meter Tethered Drone Power Box. This system is engineered to overcome the most significant limitation of traditional drones—flight time—while enabling stable and secure data links at unprecedented altitudes. Designed for the most demanding applications in security, telecommunications, and large-scale infrastructure inspection, this powerhouse delivers continuous power and unmatched reliability.

　　This comprehensive guide delves into the core performance characteristics, operational protocols, and strategic upgrade paths for our flagship 300-meter system. Understanding these elements is crucial for maximizing your return on investment and ensuring mission success in critical environments.

　　Performance Characteristics: Engineered for High-Altitude Endurance

　　The 300-meter specification is not just about cable length; it's a testament to a system engineered to handle the significant electrical and mechanical challenges of extended-range tethered flight.

　　Uninterrupted High-Altitude Power Delivery

　　The core innovation of this Power Box lies in its ability to efficiently transmit stable power across a 300-meter tether. Unlike standard systems, it incorporates a high-voltage, low-current power transmission architecture. This sophisticated design minimizes power loss over the long cable distance, ensuring that the drone at the end of the tether receives consistent and clean power, even at maximum altitude. The system delivers a continuous 1200W output, capable of supporting heavy-lift drones with power-hungry payloads like dual EO/IR cameras or communication relays, for 24 hours or more.

　　Intelligent Thermal and Power Management

　　Sustaining such high power output over prolonged periods generates significant heat. The Power Box is equipped with an advanced active cooling system, featuring variable-speed fans and high-efficiency heat sinks. This system maintains optimal internal temperatures even in hot ambient conditions, preventing thermal throttling and ensuring consistent performance. Furthermore, built-in intelligent circuitry provides multi-layered protection against over-voltage, over-current, and short-circuit scenarios, safeguarding both the ground equipment and the airborne drone.

　　Ruggedized Design for Field Deployment

　　Built for the real world, the Power Box boasts a hardened aluminum alloy chassis and meets an IP55 rating for dust and water jet resistance. It is engineered to operate flawlessly in temperatures from -20°C to 45°C and can withstand wind, rain, and vibration typical of harsh outdoor environments. The unit features reinforced, military-grade connectors for both power input and tether output, ensuring a secure and reliable connection even after hundreds of deployment cycles.

　　Key Product Features: Beyond Basic Power Supply

　　This Power Box is a smart system, integrating critical features that transform it from a simple generator into the intelligent heart of your tethered UAV station.

　　Integrated Micro-UPS for Critical Transitions

　　A key feature for mission continuity is the integrated micro Uninterruptible Power Supply (UPS). In the event of a sudden main power failure—such as a generator running out of fuel—this system instantaneously switches to its backup battery. This provides sufficient power to execute a controlled, automatic landing of the drone, protecting your valuable airborne assets from a catastrophic fall.

　　Automated Tether Management System (TMS)

　　Managing 300 meters of cable is a complex task. The Power Box can be integrated with our optional Automated Tether Management System. This system features a motorized reel that actively controls the payout and retraction of the tether. It maintains precise tension, preventing slack that could lead to tangles or snags, and managing the cable's posture in windy conditions to minimize sway and ensure a stable aerial platform.

　　Centralized Data Hub and Diagnostics

　　Acting as the ground data terminal, the Power Box is equipped with a fiber-optic transceiver for secure, low-latency data transmission. It serves as a centralized hub, offering multiple data interfaces including Gigabit Ethernet, HDMI for live video monitoring, and USB-C for system diagnostics. An integrated web interface allows operators to monitor real-time system health—including output power, internal temperature, tether length, and error logs—from any connected device, enabling proactive maintenance.

　　Operational Guidance: Maximizing Safety and Efficiency

　　Proper operation is key to unlocking the system's full potential and ensuring long-term reliability. Follow these guidelines for optimal performance.

　　Pre-Flight Setup and Checks

　　Begin with a thorough site survey. Ensure a clear launch area with a radius of at least 10 meters, free of overhead obstructions like power lines and trees. Verify that the 300-meter airspace is clear. Inspect the entire length of the tether cable for any visible signs of damage, such as cuts, kinks, or abrasions. Confirm that all connections to the Power Box—both power input and tether output—are secure. Power on the unit and use the built-in diagnostics or Ground Control Station (GCS) to perform a system self-test before arming the drone.

　　In-Flight Monitoring and Best Practices

　　During ascent, ascend at a steady, moderate rate, allowing the TMS (if equipped) to manage the tether smoothly. Monitor the system's status parameters on your GCS. Pay close attention to the power output and internal temperature readings. While the system is designed for continuous operation, it is good practice to periodically check the tether connection point at the drone for any signs of undue stress, especially during long-duration missions. Utilize automated flight modes like hover and orbit to maintain a stable position and reduce manual piloting workload.

　　Post-Flight and Shutdown Procedures

　　Initiate the automated landing sequence via the GCS. The drone will descend at a controlled rate while the tether is systematically retracted and spooled. After landing, power down the drone first. Allow the Power Box's cooling system to run for a minute to dissipate residual heat before disconnecting the main power source. Neatly coil and store the tether using its dedicated storage reel to prevent damage and tangles, ready for the next deployment.

　　Comprehensive Upgrade and Maintenance Plans

　　Protect your investment and ensure your system evolves with your operational needs through our structured support programs.

　　Scheduled Preventive Maintenance Tiers

　　We offer tiered maintenance plans to match your usage intensity. The Basic Plan includes an annual comprehensive inspection, internal cleaning, firmware updates, and functional testing of all subsystems. The Professional Plan, recommended for heavy-use clients, adds a semi-annual inspection, detailed thermal imaging of internal components to predict failures, and calibration of power and tension sensors. Both plans include a detailed inspection report and replacement of standard wear-and-tear components.

　　Performance and Capability Upgrades

　　Our platform is designed to be future-proof. Available upgrades include a High-Capacity Power module, which increases continuous output from 1200W to 1500W for the most demanding payloads. For environments requiring extreme quiet, a Silent Operation Fan Upgrade is available. We also offer a Software Upgrade Package that unlocks advanced features in the GCS, such as enhanced diagnostic analytics, predictive maintenance alerts, and custom automated mission profiles.

　　Extended Warranty and Priority Support

　　Move beyond the standard 12-month warranty with our Extended Care plans. These provide 24 or 36 months of total hardware coverage. Subscribers also gain access to a dedicated technical support hotline with accelerated response times (e.g., 2-hour response SLA), and a "Advanced Unit Replacement" service, where a replacement Power Box is shipped immediately upon reporting a critical fault, minimizing your operational downtime.