Refine On (Hebei) Electric Power Technology Co., Ltd. is one of the leading manufacturers and suppliers of dc high voltage tester in China. If you're going to wholesale durable dc high voltage tester, welcome to get quotation from our factory. All customized products are with high quality and competitive price.
The NRG60/80/100/120 DC High Voltage Tester consists of a control box and a high-voltage unit. The high-voltage multiplier uses DuPont material for full solid encapsulation, eliminating oil or air leakage. The LCD screen features green backlight for visibility in both bright and dark conditions. The system operates on AC220V ±10% / 50Hz, with ripple factor <0.5%. The protection circuit withstands direct discharge from large-capacitance devices. Voltage regulation accuracy is <0.1% across full range, with linear continuous adjustment. A dedicated button provides automatic voltage reduction to 75% of measured V1mA for MOV arrester testing, with conversion accuracy >0.5%. Operating temperature: 0°C to 40°C, humidity <90%, altitude <3000m.
Product Parameters
|
Model |
Rated Voltage |
Rated Current |
Control Box Size (mm) |
Control Box Weight (kg) |
HV Unit Size (mm) |
HV Unit Weight (kg) |
|
NRG60 |
60 kV |
2–10 mA |
310 × 250 × 240 |
7 |
470 × 260 × 450 |
5 |
|
NRG80 |
80 kV |
2–10 mA |
310 × 250 × 240 |
7 |
470 × 260 × 450 |
5 |
|
NRG100 |
100 kV |
2–5 mA |
310 × 250 × 240 |
7 |
470 × 260 × 450 |
5 |
|
NRG120 |
120 kV |
2–5 mA |
310 × 250 × 240 |
7 |
470 × 260 × 450 |
6 |
Common Specifications
|
Parameter |
Value |
|
Output Polarity |
Negative |
|
Start Interlock |
Zero-voltage start (knob must be at zero) |
|
Voltage Adjustment |
Linear continuous |
|
Power Supply |
50 Hz, AC220V ±10% |
|
Voltage Accuracy |
±0.5% of reading ±2 digits, resolution 0.1 kV |
|
Current Accuracy |
±0.5% of reading ±2 digits, control box resolution 1 µA, external micro-ammeter resolution 0.1 µA |
|
Ripple Factor |
<0.5% |
|
Duty Cycle |
Intermittent, ≤30 minutes at rated load |
|
Operating Temp. |
0°C to 40°C |
|
Operating Humidity |
<90% RH |
|
Storage Temp. |
-10°C to 40°C |
|
Storage Humidity |
<90% RH |
|
Max. Altitude |
3000 m |
Key Advantages (Data-supported)
- Voltage regulation accuracy: <0.1% across full range
- Ripple factor: <0.5%
- Voltage measurement: ±0.5% ±2 digits, resolution 0.1 kV
- Current measurement: ±0.5% ±2 digits, minimum resolution 0.1 µA (external micro-ammeter)
- Over-voltage protection: user-adjustable threshold, setpoint error ≤1%
- Over-current protection: trips at ≥1.1× rated current
- MOV testing: automatic 75% V1mA reduction, conversion accuracy >0.5%
- Safety interlocks: zero-voltage start; open-circuit detection
- Encapsulation: full solid DuPont material, no oil/air leakage
Applications
• DC withstand voltage and leakage current tests on cables, MOV arresters, transformers, and capacitive loads
• Preventive maintenance in utilities, transmission/substation contractors, industrial plants, and research labs
Related Products
Factory Show
FAQ
Q1: What are the available models of the DC High Voltage Tester?
A: Four models: NRG60 (60 kV), NRG80 (80 kV), NRG100 (100 kV), and NRG120 (120 kV).
Q2: Can the DC High Voltage Tester withstand direct discharge from capacitive loads?
A: Yes. The protection circuit is designed to tolerate direct discharge from large-capacitance devices without damage.
Q3: What is the minimum measurable leakage current?
A: Control box: 1 µA. External micro-ammeter: 0.1 µA.
Q4: What is the operating duty cycle?
A: Intermittent operation only. At rated load, run ≤30 minutes, then allow cooling.
Q5: What warranty is provided?
A: 12 months free repair for defects under normal use, lifetime paid service. 24-hour service response.
Hot Tags: dc high voltage tester, China dc high voltage tester manufacturers, suppliers, factory
