ZGF Integrated DC Hipot Tester
Введение в продукт
The ZGF Integrated DC Hipot Tester is specifically designed for detecting the electrical insulation strength and measuring leakage current in power devices. It employs a high-frequency voltage doubler circuit and integrates advanced PWM pulse width modulation technology along with a voltage-current dual closed-loop feedback system. Utilizing imported high-power IGBT devices and advanced drive technology, the tester achieves high voltage stability and extremely low ripple. Additionally, the adoption of imported high-frequency high-voltage rectifier diodes makes the double-pressure cylinder more compact and lightweight.
Product Characteristics
1. Stable Output Voltage – The instrument utilizes 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.
2. Comprehensive Protection – Fully equipped with protection functions including zero-start, over-voltage, over-current, and breakdown protection. The protection circuit employs nanosecond-level sensors for fast and reliable response, effectively ensuring the safety of both personnel and equipment.
3. 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.
4. 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.
5. Over-Voltage Setting – Over-voltage settings are configured using a digital dial switch, offering easy operation and high setting accuracy.
6. Integrated Design – Adopts a one-piece 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.
7. 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.
8. Simple Operation – The instrument interface features clearly labeled function buttons with a reasonable layout, making it easy to learn and operate.
Технические параметры
| Спецификация | 60/2 | 60/3 | 60/5 | 120/2 | 120/3 | 120/5 |
| Rated voltage（kV） | 60 | 60 | 60 | 120 | 120 | 120 |
| Rated current（mA） | 2 | 3 | 5 | 2 | 3 | 5 |
| rated power（W） | 120 | 180 | 300 | 240 | 360 | 600 |
| Machine quality（kg） | 9 | 10 | ||||
| Machine volume（mm3） | 465*390*190 | 565*390*190 | ||||
| Double cylinder height（mm） | 440 | 535 | ||||
| Точность выходного напряжения | ±(1,0% Чтение ± 2 слова) | |||||
| Точность выходного тока | ±(1,0% Чтение ± 2 слова) | |||||
| Коэффициент пульсации | ≤0.5% | |||||
| Способ работы | Периодическое использование, номинальная нагрузка 30 минут. | |||||
| Возможность перегрузки | Напряжение холостого хода может превышать 10 % от номинального напряжения в течение 10 минут. | |||||
| Максимальный зарядный ток в 1,25 раза превышает номинальный ток. | ||||||
| power supply：AC220V±10% 50Hz | ||||||
| рабочая обстановка | temperature：-10-40℃ | |||||
| Относительная влажность: не более 85% при комнатной температуре 25°С (без конденсации). | ||||||
| Высота: ниже 1500 метров. | ||||||
