Cable fault bridge and cable fault tester are instruments used to detect cable faults. Their difference lies in:
1. Different principles: Cable fault bridges use the principle of bridge balance to measure the location and type of cable faults, while cable fault testers use high-voltage partial discharge and time domain inversion methods to detect cable faults.
2. Different accuracies: The cable fault bridge has a higher accuracy and can detect small faults, but it takes longer to complete the measurement. The cable fault tester quickly and accurately determines the type and location of cable faults.
3. Different usage ranges: Cable fault testers can be used for detecting various types of cable faults, such as wire breakage, short circuit, insulation aging, and other faults. The cable fault bridge can only identify two types of faults: broken wire and short circuit.
4. Different prices: Due to differences in usage principles and accuracy, cable fault bridges are cheaper than cable fault testers. But in practical work, cable fault testers are more commonly used because they can quickly and accurately identify cable faults and locate problems.
