The LDZGF-200KV series DC high voltage generator adopts high-frequency voltage doubling circuit and advanced PWM high-frequency pulse width modulation technology, combined with high-power IGBT devices, with high stability and low ripple characteristics. This product is designed specifically for the power sector, industrial and mining, metallurgy, steel and other enterprises, and is suitable for DC withstand voltage testing and leakage current testing of high-voltage electrical equipment such as zinc oxide lightning arresters, power cables, transformers, generators, etc. Its core functions include overvoltage/overcurrent protection, zero position closing protection, 0.75 times voltage fast switching, etc., and have passed strict inspection and certification to ensure testing safety and reliability. The product adopts a portable design, with a lightweight structure and easy operation, suitable for laboratory and on-site environments.
| Model/Parameters | 200/2 | 200/3 | 200/5 | 300/2 | 300/3 | 300/5 | 400/2 | 400/3 | 400/5 |
| Rated voltage(kV) | 200 | 200 | 200 | 300 | 300 | 300 | 400 | 400 | 400 |
| Rated current(mA) | 2 | 3 | 5 | 2 | 3 | 5 | 2 | 3 | 5 |
| Rated power(W) | 400 | 600 | 1000 | 600 | 900 | 1500 | 800 | 1200 | 2000 |
| Control cabinet weight(kg) | 5.5 | 6.0 | 6.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.8 |
| Cylinder weight(kg) | 8.7 | 9 | 9 | 24 | 24 | 24.5 | 33.5 | 33.5 | 33.5 |
| Cylinder height(mm) | 970 | 970 | 970 | 1250 | 1250 | 1250 | 1650 | 1650 | 1650 |
| Voltage accuracy | ±(1.0%R±2d) | ||||||||
| Current accuracy | ±(1.0%R±2d) | ||||||||
| Ripple coefficient | ≤0.5% | ||||||||
| Voltage stability | Power voltage ±10%≤1% | ||||||||
| Over-load capacity |
No-load voltage can exceed the rated voltage of 10% to 10 minutes. Maximum charge current of 1.25 times the rated current. | ||||||||
| Power | AC 60Hz 230V±10%, single phase | ||||||||
| Work mode | Intermittent use, rated load for 30 minutes | ||||||||
| 1.1 times rated voltage：10 minutes | |||||||||
| Working environment | Temperature : -10-40℃ | ||||||||
| Relative humidity：The room temperature is 25 degrees centigrade is not greater than 85% (without dew) | |||||||||
| Altitude< 1500 m | |||||||||
| Capacitive load capacity | The capacitance of the test object is unlimited. | ||||||||
| Can use 1.5 times rated current charging | |||||||||
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. 2. To learn more about Longdian products, please enter the product center. Service Hotline: 400-6727-238
The voltmeter directly displays the load voltage without the need for an external voltage divider, with an accuracy of ± (1.0% reading+2 words);
Ripple coefficient ≤ 0.5%, voltage stability ≤ 1% (when power supply fluctuates by ± 10%);
Support running for 10 minutes with no-load voltage exceeding 10% of the rated value, suitable for rigorous testing requirements.
The overvoltage, overcurrent, disconnection, and grounding protection functions are complete, with a response time of nanoseconds;
The overvoltage protection value can be intuitively set through a digital dip switch to avoid misoperation;
High voltage circuit zero start design ensures safe and controllable boosting process.
Equipped with 0.75U~DC1mA~one click switching function, specially optimized for zinc oxide lightning arrester testing, with an accuracy of ≤ 1.0%;
Multi turn potentiometer for smooth voltage regulation, supporting continuous adjustment across the entire range, ensuring smooth voltage rise;
Portable aluminum alloy chassis and lightweight double pressure cylinder design, with a total weight of ≤ 16kg, convenient for on-site handling.
The double pressure cylinder is made of special insulation material, which is moisture-proof and impact resistant. The bottom is supported by three legs to ensure stability;
Medium frequency voltage doubling technology and electromagnetic compatibility optimization can withstand rated voltage discharge without damage;
Supports unlimited charging of large capacitor samples, with a maximum charging current of 1.25 times the rated value.
Covering three specifications of 200kV/2mA, 200kV/3mA, and 200kV/5mA, with a power range of 400W-1000W;
Strong adaptability to working environment (-10 ℃~+40 ℃, humidity ≤ 85%), suitable for areas below 1500 meters above sea level.
