Description
Overview
GAOTek DC Ground Fault Locators’ purpose is to check whether the connection or mechanical properties between winding and lead are good, and whether the resistance between each phase winding is balanced, so as to ensure the safe operation of the transformer. These testers are developed and produced by the company that uses 32-bit ARM cores as the processing core, controls the whole machine, automatically completes self-calibration, steady current judgment, data processing, resistance value display and other functions, and can measure the DC resistance of various types of transformers and transformers. These instruments work directly with internal batteries, which greatly facilitates the use of field workers.
Features
- Portable
- Lightweight
- user-friendly
- high precision
- anti-interference
- shockproof
- Long-lasting battery, >6 hrs
- Inverse potential protection, rapid measurements
- Microcomputer control, self-calibration, stable results, clear LCD display
- Single power supply for on-load voltage regulator transformers
- Suitable for transformers up to 110 kV voltage grades
- Sunlight-readable large LCD screen.
Technical Specifications
| Current output | 10 A, 5 A, 2.5 A, 1 A, 500 mA, 200 mA, 100 mA, 10 mA, 1 mA |
| Measuring range | 1 mΩ to 100 mΩ 2 mΩ to 1 Ω 5 mΩ to 2 Ω 10 mΩ to 8 Ω 20 mΩ to 20 Ω 50 mΩ to 50 Ω 100 mΩ to 100 Ω 1 Ω to 1 kΩ 10 Ω to 20 kΩ |
| Resolution | 0.1 μΩ |
| Measuring accuracy | ±(0.2% reading +2 words) |
| Dimension | 7.87 in x 3.94 in x 2.36 in (200 mm Ă— 100 mm Ă— 60 mm) |
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Documentation (User Manual or Instruction Manual)