10Yanma-VN: Microprocessor Borehole Pump Controller & Protection Unit

 Advanced Automatic Protection for Borehole and Well Pump Systems

 Overview

 The "10Yanma-VN" microprocessor unit is designed for reliable and fully automated control of borehole and well pumps under the most demanding conditions. It protects pumps against electrical failures, mechanical issues, and environmental hazards. Proven in the field for over 11 years, the system is continuously enhanced to ensure safety, efficiency, and operational reliability.

 Key Features & Protections

 The 10Yanma-VN protects borehole pumps from multiple critical situations, including:

 1. Under/overvoltage and phase loss in the power supply network. 

 2. Incorrect phase sequence.

 3. Foreign objects entering the pump (e.g., stones, debris).

 4. Rotor jamming and mechanical blockage. 

 5. Pump overheating caused by closed valves, frozen pipes, or water with clay.

 6. Cable breaks or motor starter failure.

 7. Idle running due to broken shaft key connecting the motor to the pump.

 8. Low or absent water level – no external dry-run sensors required.

 9. Built-in current sensing – eliminates the need for external current transformers.

 10. Insulation failure of motor windings or connecting cables, monitored via zero-sequence current sensor (ZCS).

 11. Protection against water hammer.

 12. Fully autonomous operation with intelligent restart logic after power loss or low water levels.

 Autonomous Operation & Intelligent Restart

 The 10Yanma-VN operates with a simple Run–Stop switch and requires no start/stop buttons. It automatically restarts the pump after power restoration within 40–60 minutes and prevents dry-run damage by restarting after the well refills. This ensures continuous water supply while extending pump life and reducing maintenance costs.

 Reliability by Design

 To maximize durability, the 10Yanma-VN uses a transformer-based power supply rather than switching electronics. This design improves surge resistance, reduces electrical noise sensitivity, and ensures stable operation in harsh environments.

 Ideal Applications

- Residential and agricultural water supply wells;

- Industrial borehole pumping systems;

- Remote and harsh-climate installations;

- Any pump system requiring continuous protection and automated control.

 Why Choose 10Yanma-VN?

- Proven 11-year field performance;

- Comprehensive multi-level pump protection;

- Designed for extreme operating conditions;

- Fully automated control minimizing human intervention;

- Enhances pump longevity and reliability.