By hvhipot 
The cable fault tester under HV Hipot Electric Co., Ltd. power can help many power workers conduct various power tests more conveniently.
Cables are typically used for distributing electrical energy. Although cables are highly developed, cable systems sometimes still experience malfunctions. Power companies often face the problem of finding the exact location of faults in distribution cables. These faults usually occur at the worst times, causing the greatest inconvenience to utility customers. The power company must quickly locate and isolate the fault to restore power services. The available fault location methods include cable fault locators, radars, sound detectors, or their combinations.
Fault locator is used to identify faults that occur in communication/control cables for quick repair. In order to reduce downtime and facilitate maintenance, a cable fault locator is essential. They use the principle of pulse reflection technology to quickly locate the location of faults, making it very flexible and time-saving. Considering the growth of telecommunications departments and cable TV operators in cities, metropolises, and urban entertainment industries, the demand for this product is bound to increase.
Cable failure is damage to the cable and can affect its resistance. If it persists, it may cause voltage breakdown. Equipment users must use the fastest and most effective method to identify underground cable faults, and the training required to use the underground cable fault locator equipment is minimal. Manufacturers must design easy-to-use equipment to quickly and accurately identify cable faults, in order to minimize any additional damage to the tested cables.
There are different types of cable faults that must be classified before locating them. To determine the fault in the cable, it is necessary to first test whether there is a fault in the cable. Therefore, cable testing is usually performed first at the location of the cable fault. During cable testing, the weak points of the cable can generate arcing, which can then be located.
The measures required to determine the location of the fault can be subdivided into various steps.
Fault classification
Insulation and resistance measurements can provide information about fault characteristics. Insulation testing can measure the insulation resistance between a conductor and a shield; From regular measurements of resistance, you can determine the absorption characteristics of insulation materials.
Cable identification
In cable identification, identify faulty cables from non faulty cables at a determined location.
After identifying and locating the cable fault, a burner device can be used to ‘burn it in’, in other words, convert it from a low resistance fault to a high impedance fault.
In order to meet the demand for milder fault location methods, the industry has developed more complex methods to reduce pressure on aging insulation systems. The general method is to reduce the amount of heavy hits required to locate faults while lowering the voltage required to perform tasks.