HVPD manufactures instruments specializing in PD testing for different electrical equipment, such as Transformer, Terminator, Splicing kit, Elbow connector, Power cable, and so forth. These instruments can detect PD before extreme deterioration occurs, which could lead to higher repair costs. PD testing could be done while equipment is online or offline. In addition, instruments manufactured by HVPD have a wide range of PD measurements. Measures range from basic PD detection, localization of PD, and PD monitoring systems.