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QLDDY-3300 Portable Power Frequency Test Power Supply
The QLDDY-3300 is a portable power supply designed for efficient and reliable field testing. It features a lightweight and compact design, a wide operational frequency range, and high power output to meet demanding test requirements. The unit includes a user-friendly interface for easy operation and is built from durable materials to withstand industrial environments.
Product points
- High-performance, strong load capacity: inverter, high-quality power supply, adapts to a variety of loads, such as motors, air conditioning, electric drills, fluorescent lamps, gas lamps, and other household appliances, communications equipment, and industrial equipment.
- High Reliability: adopt and redundant design, and configure a power frequency transformer controlled by a CPU, with stable performance and high reliability.
- Protection: with input over-voltage and under-voltage protection, output overload, over-current, short-circuit protection, over-temperature protection, and so on, it can resist the impact of large current start-up load.
- Friendly interface: LCD/LED display: working status, output voltage, battery voltage, frequency, load rate, fault, and other information is clear; and sound and light fault alarm, indicating fault and other functions.
- Simple operation: Intelligent Switch Machine, high degree of automation, and easy operation.
- Simple structure: the internal functional components are Modular design, simple structure, and easy maintenance.
- Easy to carry: trolley box design, easy to use on site.
- High Efficiency: the no-load current is small, in the absence of a load, to save energy.
- Intelligent Battery Management: The Intelligent Battery Monitoring Management System strengthens battery monitoring, prolongs battery life, and utilization.





