ZGF Integrated DC Hipot Tester
Product Introduction
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.
פרמטרים טכניים
| מִפרָט | 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 | ||||
| דיוק מתח המוצא | ±(1.0%קריאה ± 2 מילים) | |||||
| דיוק זרם פלט | ±(1.0%קריאה ± 2 מילים) | |||||
| מקדם אדווה | ≤0.5% | |||||
| צורת עבודה | שימוש לסירוגין, עומס מדורג 30 דקות | |||||
| יכולת עומס יתר | מתח ללא עומס יכול לעלות על 10% מהמתח הנקוב למשך 10 דקות | |||||
| זרם הטעינה המרבי הוא פי 1.25 מהזרם הנקוב | ||||||
| power supply：AC220V±10% 50Hz | ||||||
| סביבת עבודה | temperature：-10-40℃ | |||||
| לחות יחסית: לא יותר מ-85% בטמפרטורת חדר של 25 מעלות צלזיוס (ללא עיבוי) | ||||||
| גובה: מתחת ל-1500 מטר | ||||||
