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- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDFR-R-60 is a national metrology grade DC standard resistance voltage divider designed for ultra-high precision DC high voltage measurement and traceable calibration in national/regional metrology institutes, high-voltage laboratories, and power equipment manufacturers. It fully complies with JJG 1007-2005 and DL/T 846.1-2016, adopting SF6 fully sealed gas insulation and balanced multi-layer equipotential shielding structure to eliminate surface leakage current and electromagnetic interference, ensuring long-term measurement accuracy and stability.
Equipped with imported ultra-high precision non-inductive metal film resistors and precision temperature compensation technology, it achieves ±0.01% measurement accuracy and ≤0.005% annual ratio stability, with an ultra-low temperature coefficient of 0.2ppm/℃. It features three standard voltage divider ratios (10³:1, 10⁴:1, 10⁵:1) and BNC low-voltage output interface, compatible with all mainstream high-precision digital multimeters (Agilent, Fluke, etc.). With a compact, portable design and 25kg total weight, it is suitable for both laboratory calibration and on-site field testing of DC high voltage equipment.
Specifications
|
Parameter |
Specification |
|
Rated DC Voltage |
60kV (positive/negative polarity) |
|
Input Resistance |
100MΩ |
|
Equipotential Shielding Resistance |
200MΩ |
|
Standard Voltage Divider Ratios |
10³:1 (60V output), 10⁴:1 (6V output), 10⁵:1 (600mV output) |
|
Measurement Accuracy |
±0.01% of reading (20℃±2℃) |
|
Annual Ratio Stability |
≤0.005% |
|
Temperature Coefficient |
≤0.2ppm/℃ |
|
Linearity Error |
≤±0.005% |
|
Insulation Medium |
SF6 gas (0.4MPa) |
|
Output Interface |
BNC 50Ω shielded connector |
|
Operating Temperature |
-10℃ ~ +40℃；Humidity ≤85%RH (non-condensing) |
|
Calibration Temperature |
20℃±2℃ |
|
Housing Material |
Fully sealed aluminum alloy |
|
Dimensions (mm) |
400×400×620 (including base) |
|
Weight |
~25kg |
|
Compliance |
JJG 1007-2005, DL/T 846.1-2016, GB/T 16927.2-2013, IEC 61010-1 CAT III 1000V |
Applications
Core Test Objects
- DC high voltage generators: traceable calibration of output voltage accuracy
- DC high voltage meters: calibration and verification
- Zinc oxide arresters (MOA): DC reference voltage precision measurement
- Power cables: DC withstand voltage test voltage measurement
- Transformers & motors: DC insulation test voltage measurement
- High-voltage power supplies: precision DC voltage measurement
Typical Usage Scenarios
- National/regional metrology institutes: DC high voltage standard for traceability
- High-voltage laboratories: precision DC high voltage measurement and calibration
- Power equipment manufacturers: production line quality control and calibration
- Electric power research institutes: high-voltage insulation research and testing
- On-site substation testing: field calibration of DC high voltage test equipment
Advantages
0.01% Ultra-High Accuracy & 0.005% Annual Stability
National metrology grade precision；long-term measurement reliability → ensures test result validity and regulatory compliance
0.2ppm/℃ Ultra-Low Temperature Coefficient
Minimizes temperature drift；full accuracy guaranteed across -10℃~+40℃ → reliable measurements in any environment
SF6 Fully Sealed Insulation
Excellent insulation performance；anti-moisture, anti-corona, maintenance-free → long service life and stable performance
Three-Range Output & Universal Compatibility
Covers all common measurement ranges；compatible with all mainstream high-precision multimeters → plug-and-play, no additional equipment required
FAQ
Q: Is it a national metrology grade standard?
A: Yes. ±0.01% accuracy and ≤0.005% annual stability meet the requirements of JJG 1007-2005 for 0.01 grade DC high voltage dividers.
Q: What is the temperature coefficient?
A: ≤0.2ppm/℃, which is far below the industry standard of 50ppm/℃, ensuring minimal temperature drift.
Q: Can it be used with Fluke or Agilent multimeters?
A: Yes. It uses a standard BNC interface and three output ranges, compatible with all mainstream high-precision digital multimeters.
Q: Is it maintenance-free?
A: Yes. SF6 fully sealed structure；no air leakage, no need for regular maintenance.
