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DC hipot tester ZGF 60~120kV
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Description
Product Introduction
Technical Parameters
Product Characteristics of DC Hipot Tester
FAQs for DC Hipot Tester
- The instrument utilizes a high-frequency voltage doubler circuit combined with advanced PWM pulse width modulation technology and voltage-current dual closed-loop feedback, which significantly improves both power supply regulation and load regulation, resulting in high voltage stability and low ripple. High-power IGBT devices with advanced driving technology are employed to eliminate switching interference, ensuring high quality and portability. Imported high-frequency high-voltage rectifier diodes further reduce the size and weight of the voltage doubler while improving overall efficiency.
- Based on EMI and EMC electromagnetic compatibility principles, the generator incorporates shielding, isolation, and grounding measures to enhance safety and withstand rated voltage discharge without damage. Comprehensive protection features include zero-start, over-voltage, over-current, and breakdown protection, with the protection circuit utilizing nanosecond-level specialized sensors for fast and reliable response, effectively safeguarding personnel and equipment. Over-voltage settings are configured using a digital dial switch for easy operation and high setting accuracy. An intelligent high-precision 0.75U function button is also included to facilitate testing of zinc oxide arresters.
- The Integrated DC High Voltage Generator adopts an integrated design, housing both the voltage doubler and the host in a single chassis. By combining new technologies and advanced components, it achieves compact size, high power, light weight, convenient operation, safe and reliable performance, and excellent power output quality—making it an ideal testing instrument for the high-voltage test industry.
Technical Parameters
- Output voltage accuracy: ±(1.0%Reading ± 2 words)
- Output current accuracy: ±(1.0%Reading ± 2 words)
- Ripple coefficient: ≤0.5%
- Way of working: Intermittent use, rated load 30 minutes
- Overload capability: No-load voltage can exceed 10% of rated voltage for 10 minutes
- The maximum charging current is 1.25 times the rated current
- power supply: AC220V±10% 50Hz
- temperature: -10-40℃
- Relative humidity: no more than 85% at room temperature of 25 °C (no condensation)
- Altitude: below 1500 meters
Product Characteristics of DC Hipot Tester
- Stable Output Voltage: The instrument employs a high-frequency voltage doubler circuit combined with advanced PWM pulse width modulation technology and voltage-current dual closed-loop feedback. This significantly improves both power supply regulation and load regulation, resulting in high voltage stability and low ripple.
- Comprehensive Protection: Fully equipped with protection functions including zero-start, over-voltage, over-current, and breakdown protection. The protection circuit utilizes nanosecond-level specialized sensors for fast and reliable response, effectively ensuring the safety of both personnel and equipment.
- 0.75U Function: Features an intelligent high-precision 0.75U one-button function. When pressed, the voltage and current automatically adjust to the 0.75U state, facilitating convenient testing of zinc oxide arresters.
- Zero-Start Boost: The boost potentiometer starts from zero and uses an imported multi-turn potentiometer, ensuring a smooth boosting process with high adjustment precision.
- Over-Voltage Setting: Over-voltage settings are configured using a digital dial switch, offering easy operation and high setting accuracy.
- Integrated Design: Adopts a one-piece integrated design with the host and voltage doubler housed in a single chassis. The use of imported high-frequency high-voltage rectifier diodes results in a compact voltage doubler, improved overall efficiency, and enhanced portability.
- Reliable Performance: Key components utilize high-performance imported parts. The pressure roller is coated with specialized insulating materials, providing excellent electrical performance, strong moisture resistance, and no leakage.
- Simple Operation: The instrument interface features clearly labeled function buttons with a reasonable layout, making it easy to learn and operate.
FAQs for DC Hipot Tester
- 1. What tests is this DC hipot tester mainly used for?
- DC hipot testers are mainly used for DC withstand voltage testing and leakage current testing of power equipment, and are widely used in on-site inspection and preventive testing of zinc oxide lightning arresters, power cables, generators, transformers, and other high-voltage electrical equipment.
- 2. Does this DC hipot tester have overvoltage and overcurrent protection functions?
- Yes. The equipment is equipped with comprehensive overvoltage protection, overcurrent protection, zero start protection, grounding protection, and emergency stop functions, which can effectively ensure the safety of operators and the tested equipment.
- 3. Is the DC hipot tester suitable for on-site use?
- Yes. The equipment adopts a lightweight design, compact structure, and is easy to transport and carry, especially suitable for on-site testing environments such as substations, power plants, and transmission and distribution lines.
- 4. Does the DC hipot tester comply with international standards?
- Our products are designed and manufactured according to relevant IEC standards, and we can provide products that meet international certification requirements such as CE according to customer requirements.
- 5. How to ensure after-sales service for DC hipot testers?
- We provide professional technical support and comprehensive after-sales service, including operation training, installation guidance, remote technical support, and spare parts supply. The equipment usually comes with a 12-month warranty service. During the warranty period, if there are any malfunctions caused by product quality issues, we will provide free repair or replacement services.
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High Voltage Tester
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