RDZGH-120/X DC High Voltage Generator
- Wrindu
- Shanghai, China
- about 10 working days
- 1000 set/month
- RDZGH-120/X
RDZGH-120/X DC High Voltage Generator uses advanced PWM control and dual closed-loop feedback technology to provide stable high voltage output with low ripple. Equipped with high-quality IGBT components and high-frequency rectifier diodes, it offers high efficiency, compact size, and reliable performance.
With protections including over-current, over-voltage, and breakdown protection, plus an intelligent 0.75U function for arrester testing, this portable generator is ideal for DC insulation strength and leakage current tests of high-voltage equipment.
Product Features
1.Stable Voltage Output: Uses advanced PWM control and voltage-current dual closed-loop feedback technology to provide stable high voltage output with low ripple. The smooth voltage adjustment and high accuracy ensure reliable test results. Voltage resolution is 0.1kV and current resolution is 1μA.
2. Complete Safety Protection: Equipped with zero-position protection, over-current protection, over-voltage protection, and breakdown protection. The fast-response protection system helps ensure operator and equipment safety.
3. Intelligent 0.75U Function: The built-in 0.75U function automatically adjusts voltage and current to the required level, making it convenient for zinc oxide arrester testing.
4. Accurate Voltage Control: The zero-start voltage design uses a high-precision multi-turn potentiometer for smooth operation and accurate voltage adjustment.
5. Easy Overvoltage Setting: The digital dial switch allows simple and precise overvoltage setting.
6. Compact Integrated Design: The host and high-voltage cylinder are integrated into one portable case. High-frequency rectifier technology reduces size and improves overall efficiency.
7. Reliable Components: High-quality imported components and special insulation materials provide excellent electrical performance, moisture resistance, and long-term reliability.
8. Simple Operation:The instrument features a clear interface, well-arranged buttons, and easy-to-understand functions for convenient operation.
Product Specifications and Technical Parameters
| Parameter | 120/2 | 120/3 | 120/5 |
|---|---|---|---|
| Rated Voltage | 120 kV | 120 kV | 120 kV |
| Rated Current | 2 mA | 3 mA | 5 mA |
| Rated Power | 240 W | 360 W | 600 W |
| Weight | 10 kg | 10 kg | 10 kg |
| Dimensions | 565 × 390 × 190 mm | 565 × 390 × 190 mm | 565 × 390 × 190 mm |
| Cylinder Height | 535 mm | 535 mm | 535 mm |
| Output Voltage Accuracy | ±(1.0%rdg ± 2dgt) | ±(1.0%rdg ± 2dgt) | ±(1.0%rdg ± 2dgt) |
| Output Current Accuracy | ±(1.0%rdg ± 2dgt) | ±(1.0%rdg ± 2dgt) | ±(1.0%rdg ± 2dgt) |
| Ripple Coefficient | ≤0.5% | ≤0.5% | ≤0.5% |
| Operating Mode | Intermittent operation, rated load for 30 minutes | Intermittent operation, rated load for 30 minutes | Intermittent operation, rated load for 30 minutes |
| Overload Capacity | No-load voltage can exceed rated voltage by 10% for 10 minutes; Maximum charging current: 1.25 times rated current | No-load voltage can exceed rated voltage by 10% for 10 minutes; Maximum charging current: 1.25 times rated current | No-load voltage can exceed rated voltage by 10% for 10 minutes; Maximum charging current: 1.25 times rated current |
| Power Supply | AC 220V ±10%, 50Hz | AC 220V ±10%, 50Hz | AC 220V ±10%, 50Hz |
| Working Environment | Temperature: -10℃ to 40℃; Relative humidity: ≤85% (25℃, no condensation); Altitude: <1500 m | Temperature: -10℃ to 40℃; Relative humidity: ≤85% (25℃, no condensation); Altitude: <1500 m | Temperature: -10℃ to 40℃; Relative humidity: ≤85% (25℃, no condensation); Altitude: <1500 m |
FAQs
1. What is a DC high voltage generator used for?
A: A DC high voltage generator is used to test the insulation strength and leakage current of high-voltage electrical equipment, such as cables, transformers, switchgear, and zinc oxide arresters.
2. How does the RDZGH-120/X DC High Voltage Generator improve test accuracy?
A: The RDZGH-120/X uses PWM control technology and voltage-current dual closed-loop feedback to provide stable output voltage, low ripple, and accurate measurement results.
3. What voltage range can the RDZGH-120/X DC High Voltage Generator output?
A: The RDZGH-120/X provides a rated output voltage of 120kV, with different current options including 2mA, 3mA, and 5mA models.
4. Can the RDZGH-120/X be used for zinc oxide arrester testing?
A: Yes. The built-in intelligent 0.75U function makes it suitable for zinc oxide arrester leakage current and insulation performance testing.
5. What safety protections does the RDZGH-120/X DC High Voltage Generator have?
A: It features multiple protections, including over-voltage protection, over-current protection, zero-position protection, and breakdown protection to improve operator and equipment safety.
6. Why is low ripple important in DC high voltage testing?
A: Low ripple helps maintain stable DC voltage output, reduces measurement errors, and improves the reliability of insulation test results.
7. Is the RDZGH-120/X DC High Voltage Generator easy to carry and operate?
A: Yes. Its integrated design combines the control unit and high-voltage cylinder in one compact case, making it convenient for transportation and field testing.
8. What equipment can be tested with a 120kV DC high voltage generator?
A: It can be used for testing power cables, transformers, GIS equipment, insulators, surge arresters, and other high-voltage electrical devices.
9. How does the 0.75U function help during arrester testing?
A: The 0.75U function automatically adjusts the output voltage to the required test level, simplifying zinc oxide arrester testing and improving operation efficiency.
10. What factors should be considered when selecting a DC high voltage generator?
A: Engineers should consider output voltage, rated current, accuracy, ripple coefficient, protection functions, portability, and the requirements of the equipment being tested.
