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QLDGF DC High Voltage Generator
The QL-DCGF DC High Voltage Generator is designed for use in scientific and industrial environments where stable and accurate high-voltage is required. The key features include adjustable voltage control, solid construct, embedded safety features, and compact design. All but allowing easy integration, it is particularly noted for insulation reflection and in high-energy physics applications, to guarantee performance and user safety.
Technical Features
- High precision and accurate measurement. The voltmeter on the control box directly displays the voltage value applied to the load sample, eliminating the need for an external voltage divider and simplifying wiring. The instrument measures leakage current at both high and low voltage ends. The high-voltage end uses a circular shielded digital meter for display, making it resistant to discharge impacts and providing excellent anti-interference performance, suitable for field use.
- High voltage regulation stability, smooth voltage adjustment across the entire range, and high output voltage regulation.
- An imported single multi-turn potentiometer ensures smooth voltage boosting and high adjustment precision.
- Negative polarity output, zero start, continuously adjustable, and various protection functions, including overvoltage, overcurrent, zero return, grounding protection, and unique open-circuit protection. The automatic protection circuit is powerful, comprehensive, and reliable, ensuring safe operation. Manufactured using the most advanced technology and processes, pioneering the application of a high-frequency voltage multiplier circuit, and employing the latest PWM high-frequency pulse width modulation technology and high-power IGBT devices, resulting in higher output high voltage stability and lower ripple coefficient. (5) The addition of a high-precision 0.75UDC1mA function greatly facilitates the measurement of zinc oxide surge arresters. The overvoltage setting adopts a digital DIP switch, which can intuitively display the set voltage value in kV, making it easy to understand.
- Fault sampling uses a dedicated sensor with a nanosecond-level action time. The optical isolation element is also nanosecond-level, which can quickly and completely shut off the DC main circuit, thus maximizing the protection of the instrument from damage.
- The voltage multiplier cylinder is made of new materials, making it lightweight and sturdy. Three concealed support feet at the bottom increase the stability of the voltage multiplier cylinder. The exterior is coated with a special insulating material, providing good electrical performance and strong moisture resistance.
- The chassis is made of aluminum alloy, which is small in size, lighter in weight, more aesthetically pleasing, more reliable, easy to operate, and fully functional, making it convenient for field use.
Working principle block diagram
Technical parameters
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Rated Parameters: Voltage – 200kV, 300kV, 400kV; Current – 2mA, 3mA, 5mA; Power – up to 2000W.
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Control Box Weight: Ranges from 5.5kg to 10.8kg depending on voltage.
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Voltage Multiplier Cylinder: Weight – 8.7kg to 33.5kg; Height – 970mm to 1650mm.
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Accuracy: Voltage and current accuracy ±(1.0% reading + 2 digits); Ripple coefficient ≤0.5%.
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Voltage Stability: ≤1% when power supply voltage changes ±10%.
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Overload Capacity: Operates for 10 minutes with no-load voltage exceeding rated voltage by 10%.
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Power Supply: Single-phase AC 50Hz 220V±10%.
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Operating Conditions: Temperature -10℃ to +40℃; Humidity ≤85%; Altitude below 1500m.
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Structural Features: Electrically insulated voltage multiplier cylinder with air insulation.
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Convenience Features: High-precision single-touch button, overvoltage protection with DIP switches, and portable chassis for on-site use.
