Vlf Cable Testing Equipment

Vlf cable testers support iec 60502 and ieee 400 2.

Vlf cable testing equipment.

During the test cables are subjected to a test voltage significantly higher than what they experience during normal operating conditions. Very low frequency vlf withstand testing is the application of an ac sinusoidal waveform generally at 0 01 0 1 hz to assess the quality of electrical insulation in high capacitive loads such as cables. As higher voltage vlf equipment is developed standards may be adapted to increase the voltage level for application. The vlf test can be used in a number of ways.

Vlf high voltage test equipment of the hva series by b2 electronics is the most advanced vlf ac dc hipot test equipment of its kind available. Vlf testing of cables is supported in iec 60502 up to 35 kv and in ieee 400 2 up to 69 kv. Vlf testers are smaller and more practical than ac testers but output the same amount of power as a 50 hz mains device. Hva30 5 high voltage tester.

Hva28td vlf high voltage test set. This combination of size and power makes very low frequency cable testing perfect for testing longer sections of cable and apparatus. Its most frequently used to ac field test medium and high voltage cables and test rotating machinery like motor and generator coils. Vlf testing uses very low frequencies as part of an ac cable maintenance routine.

Hva68 2 cable tester new hva90. This equipment negates the need for on site generation large step down transformers or generating company supplies to be employed to power the items under test.